Question 1:
Which of the following is the component of lead acid battery?
A.
Container
B.
Plates
C.
Separator
D.
All are correct
Answer: _________
Question 2:
In earth return system which terminal of the battery is earthed to the body or chassis which is made of metal-
A.
Negative
B.
Positive
C.
Both
D.
None of these
Answer: _________
Question 3:
The negative terminal post on a top terminal battery is
A.
Smaller than positive terminal post
B.
Larger than positive terminal post
C.
Same size as positive terminal post
D.
None of these
Answer: _________
Question 4:
When the negative pole of one battery is connected to the positive pole of the other battery, the batteries are said to be connected in-
A.
Parallel
B.
Series
C.
Both
D.
None
Answer: _________
Question 5:
Which of the following has cable size $${{14} over {0.012}}$$ ?
A.
Field circuit
B.
Ignition circuit
C.
Accessories
D.
All are correct
Answer: _________
Question 6:
Before the battery is put on charge-
A.
The battery box must be properly cleaned
B.
Vent plug should be removed
C.
Both
D.
None
Answer: _________
Question 7:
The function of a generator is that it
A.
Converts battery's direct current into alternating current
B.
Changes mechanical energy into electrical energy
C.
Changes magnetism into electricity
D.
Generates direct current and gives alternating current as output
Answer: _________
Question 8:
The main purpose of a thermostat in an engine cooling system is to
A.
Allow engine to warm-up quickly
B.
Prevent the coolant from boiling
C.
Pressurize the system
D.
Indicate to the driver the coolant temperature
Answer: _________
Question 9:
Which of the following light contains 3 cp?
A.
Licence plate light
B.
Tail lights
C.
Stop light
D.
All are correct
Answer: _________
Question 10:
In automobiles the wires are connected in which of the following way-
A.
Earth return system
B.
Double pole system
C.
Both the ways
D.
None of the above ways
Answer: _________
Question 11:
The main components of dynamo is/are-
A.
Armature
B.
Field coils
C.
Brushes
D.
All are correct
Answer: _________
Question 12:
Which of the following chemical is used in the battery?
A.
Sponge lead (solid)
B.
Lead oxide (paste)
C.
Sulphuric acid (liquid)
D.
All are correct
Answer: _________
Question 13:
The rate of flow of electrons in a conductor is known as
A.
Current
B.
Voltage
C.
Resistance
D.
None of these
Answer: _________
Question 14:
When two battery of 6 V are connected in parallel then equivalent is?
A.
3 V
B.
6 V
C.
12 V
D.
9 V
Answer: _________
Question 15:
The automotive electrical system does all the following EXCEPT
A.
Produces electric energy
B.
Stores electrical energy in alternator
C.
Stores electrical energy in chemical form
D.
Delivers electrical energy on demand to other electrical accessories
Answer: _________
Question 16:
Lead peroxide is of . . . . . . . . colour.
A.
Black
B.
White
C.
Green
D.
Chocolate
Answer: _________
Question 17:
How many cells are there in a 12 volt storage battery?
A.
6 cells
B.
12 cells
C.
24 cells
D.
18 cells
Answer: _________
Question 18:
The major components of voltage and current regular is/are-
A.
Cut-out Relay
B.
Current Regulator
C.
Voltage Regulator
D.
All are correct
Answer: _________
Question 19:
What is placed between negative and positive plates?
A.
Electrolyte
B.
Battery box
C.
Separators
D.
None of these
Answer: _________
Question 20:
The number of amperes that the battery can deliver for 30 seconds at -18°C without cell voltage falling below 7.2 volts is called the . . . . . . . .
A.
Charging rate
B.
Reserve capacity
C.
Cold-cranking rate
D.
Ampere-hour rate
Answer: _________
Question 21:
An instrument called hydrometer is used for
A.
Measuring specific gravity of acid
B.
Measuring viscosity of an oil
C.
Measuring temp of water
D.
Measuring charging of battery
Answer: _________
Question 22:
Which of the following light contain 6 cp?
A.
Map light
B.
Head light
C.
Dome light
D.
None
Answer: _________
Question 23:
Resistance used to perform a useful function in a circuit is known as the load device.
A.
True
B.
False
Answer: _________
Question 24:
. . . . . . . . is the quantity of electrical charge furnished by a current of one ampere for one hour.
A.
Ampere
B.
Ampere hour
C.
Ampere second
D.
None of these
Answer: _________
Question 25:
Battery box is made of hard . . . . . . . . with separate compartments for each cell.
A.
Wood
B.
Rubber
C.
Plastic
D.
None of these
Answer: _________
Question 26:
Brown colour indicates-
A.
Battery circuit interior light
B.
Ignition circuit
C.
Generator circuit
D.
None of these
Answer: _________
Question 27:
When the battery is fully discharged then its specific gravity (27°) is-
A.
1.175
B.
1.220
C.
1.100
D.
None
Answer: _________
Question 28:
How is the hydrometer reading taken correctly?
A.
Reading must be taken when electrolyte becomes still
B.
The eye should be placed at the level of electrolyte to have a correct reading
C.
Both are correct
D.
None of these
Answer: _________
Question 29:
The cells are connected in series in order to
A.
Increase the voltage rating
B.
Rate of charge
C.
Rate of discharge
D.
Quantity of active material
Answer: _________
Question 30:
The candle power of glove compartment light is-
A.
1
B.
1.5
C.
3
D.
6
Answer: _________
Question 31:
A full charged battery has specific gravity at (27°)-
A.
1.220
B.
1.175
C.
1.100
D.
None of these
Answer: _________
Question 32:
For aiming the headlights, the distance between the headlights and the screen should be
A.
1.5 m
B.
4.6 m
C.
7.6 m
D.
10.6 m
Answer: _________
Question 33:
The purpose of using diodes in the alternator is that they
A.
Prevent high output current from the alternator
B.
Protect the alternator by preventing reversed current to rush into the alternator
C.
Convert direct current into alternating current
D.
Convert alternating current into direct current
Answer: _________
Question 34:
The candle power of Trunk compartment light is-
A.
1
B.
1.5
C.
6
D.
None
Answer: _________
Question 35:
The amount of current which the alternator must supply for ignition and accessories is
A.
Four amperes
B.
Six amperes
C.
Eight amperes
D.
Tens amperes
Answer: _________
Question 36:
For checking the field coil connect the coil in . . . . . . . . with 12 volt battery and fix up 3 6 watts bulb in the circuit.
A.
Series
B.
Parallel
C.
Both A and B
D.
None of these
Answer: _________
Question 37:
If the specific gravity of the acid in a battery is low, is it desirable to add some more acid?
A.
Yes
B.
No
C.
Both
D.
Ciorrect
Answer: _________
Question 38:
The . . . . . . . . . must be aimed correctly to the required direction to get proper light on the road and to prevent the vehicle from accident-
A.
Stop lights
B.
Head lights
C.
Interior lights
D.
Parking light
Answer: _________
Question 39:
The instrument used to check specific gravity of acid in a battery is
A.
Hydrometer
B.
Hygrometer
C.
Anemometer
D.
Multimeter
Answer: _________
Question 40:
If a starter motor spins but does not engage and crank the engine, the problem is most likely caused by a bad
A.
Magnetic switch
B.
Over-running clutch
C.
Positive battery cable
D.
Ignition switch
Answer: _________
Question 41:
To check for the excessive voltage drop on insulated side of the alternator's output circuit, the voltmeter is connected between the
A.
Battery positive ( + ve) terminal and ignition switch
B.
Battery positive ( + ve) terminal and ground
C.
Battery positive ( + ve) terminal and alternator's frame
D.
Battery positive( + ve) terminal and the insulated output terminal of the alternator
Answer: _________
Question 42:
Battery box is made up of-
A.
Soft rubber
B.
Hard rubber
C.
Plastic
D.
Iron
Answer: _________
Question 43:
Which of the following pair(s) is not properly matched?
A.
Head light ⇔ 12 V, 60W/60W
B.
Blinkers ⇔ 12 V, 18W/18W
C.
Brake light ⇔ 12 V, 3W
D.
Parking light ⇔ 12 V, 6W
Answer: _________
Question 44:
The number of diodes used in alternator is/are
A.
1
B.
2
C.
4
D.
6
Answer: _________
Question 45:
Brown colour is used to indicate-
A.
Control box
B.
Ammeter
C.
Hom
D.
All of these
Answer: _________
Question 46:
. . . . . . . . are used to indicate the direction in which the vehicle is to tum.
A.
Direction signal direction
B.
Stop light
C.
Parking light
D.
Interior light
Answer: _________
Question 47:
Battery is used in which of the phenomenon-
A.
Heater, Radios
B.
Roof light, Stop light
C.
Head lamps, Taillight
D.
All are correct
Answer: _________
Question 48:
. . . . . . . . are at the rear of the car and becomes on when brakes are aiming.
A.
Head light
B.
Stop light
C.
Interior light
D.
None of these
Answer: _________
Question 49:
During battery charge, the electrolyte becomes
A.
Colder
B.
Thinner
C.
Lighter
D.
Heavier
Answer: _________
Question 50:
If the engine cranks too slow to start, the problem may be caused by
A.
Engine problem
B.
A faulty neutral start switch
C.
An open relay in the control circuit
D.
A damaged pinion gear
Answer: _________
Question 51:
The high resistance in an alternator output circuit is often caused by
A.
A bad regulator
B.
A shorted diode
C.
Loose or corroded connection
D.
None of these
Answer: _________
Question 52:
The head lamps are of . . . . . . . . watts in a medium priced car.
A.
40 - 50
B.
400 - 500
C.
100 - 200
D.
1000 - 2000
Answer: _________
Question 53:
Choose the correct statement in regard to the relationship between the temperature and the specific gravity of the battery's electrolyte.
A.
Specific gravity increases as the temperature drops and vice versa
B.
Specific gravity decreases as the temperature drops and vice versa
C.
Specific gravity decreases as the temperature increases but is constant below 20°C
D.
The specific gravity of the electrolyte is independent of the current temperature
Answer: _________
Question 54:
Which of the following light contains 1.5 cp?
A.
Instrument lights
B.
Map light
C.
Clock light
D.
All are correct
Answer: _________
Question 55:
Dynamo is not producing current when there is-
A.
Loose or broken wire connection
B.
Defective switch
C.
Broken or loose V-belt
D.
All are correct
Answer: _________
Question 56:
The positive and negative plates are made of which of following?
A.
Lead
B.
Iron
C.
Steel
D.
None of these
Answer: _________
Question 57:
The charging voltage at the start of the engine is . . . . . . . . than when the engine is running on load.
A.
Higher
B.
Lower
C.
Equal
D.
Any one of these
Answer: _________
Question 58:
A maintenance free battery
A.
Has lead-antimony plate grid
B.
Has lead-calcium plate grid
C.
Does not contain acid
D.
Does not contain water
Answer: _________
Question 59:
The current carrying capacity of cable size $${{44} over {0.012}}$$xa0 is-
A.
22 amp.
B.
14 amp.
C.
7 amp.
D.
10 amp.
Answer: _________
Question 60:
For negative plates . . . . . . . . is pasted.
A.
Lead peroxide
B.
Lead antimony
C.
Both of them
D.
None of these
Answer: _________
Question 61:
The number of windings in the stator of an alternator is
A.
1
B.
2
C.
3
D.
4
Answer: _________
Question 62:
Dynamo converts mechanical energy into-
A.
Electrical energy
B.
Electrostatic energy
C.
Both are correct
D.
None of these
Answer: _________
Question 63:
In between the negative and positive plates, separators made of-
A.
Wood
B.
Plastic
C.
One of A or B
D.
None of these
Answer: _________
Question 64:
Which of the following terminal should be removed first while removing the battery terminals?
A.
Positive
B.
Negative
C.
Both terminals should be removed simultaneously
D.
Battery terminals should never be removed
Answer: _________
Question 65:
Now a day . . . . . . . . type of chargers are commonly used.
A.
Amplifier
B.
Fire
C.
Rectifier
D.
None of these
Answer: _________
Question 66:
Specific density of electrolyte is
A.
1.250 - 1.280
B.
0.250 - 0.280
C.
1.1050 - 1.1000
D.
1.200 - 1.280
Answer: _________
Question 67:
Which of the following becomes a load in an electrical circuit?
A.
Copper wire
B.
Fuse
C.
Switch
D.
Light
Answer: _________
Question 68:
In a headlight, the metal shield is placed below the
A.
Dipped beam
B.
Main beam
C.
Both of the beams
D.
None of these
Answer: _________
Question 69:
An integrated circuit is a complex circuit made up of thousands of
A.
Transistors
B.
Diodes
C.
Resistors
D.
All of these
Answer: _________
Question 70:
A high rate discharge tester
A.
Should always be used to test a flat battery
B.
Should be used only if the battery is at least 70% charged
C.
Can only be used on nickel alkaline cells
D.
Determines the watt-hour capacity ofa battery
Answer: _________
Question 71:
The voltage required at spark plug is
A.
6 - 12V
B.
1000 - 2000 V
C.
10,000 - 20,000 V
D.
1,00,000 - 2,00,000 V
Answer: _________
Question 72:
The main characteristics of a maintenance-free (MF) battery is that
A.
A maintenance-free battery requires little maintenance during normal use and it is sufficient to add water instead of an electrolyte containing sulphuric acid
B.
A maintenance-free battery has a relatively short shelf life when compared with standard batteries
C.
Since it is sealed, the water in a maintenance free battery is not lost through evaporation thus accordingly it is not necessary to top up the cells with water
D.
Recharging of a maintenance-free battery is neither required nor possible
Answer: _________
Question 73:
On copper wires . . . . . . . . is moulded on top of wire-
A.
Rubber
B.
Plastic
C.
Both
D.
None of these
Answer: _________
Question 74:
Main component of battery are-
A.
Separators
B.
Vent plugs
C.
Battery box
D.
All are correct
Answer: _________
Question 75:
The stop lights are also known as brake lights.
A.
True
B.
False
Answer: _________
Question 76:
The typical conduction voltage for a standard diode is
A.
0.25 V
B.
0.5 V
C.
0.7 V
D.
1.1 V
Answer: _________
Question 77:
Trafficators are lights used for
A.
Heavy traffic
B.
Light traffic
C.
Reversing the car in traffic
D.
Indicating the direction in which it turns
Answer: _________
Question 78:
The multiplex wiring control system is used to
A.
Share information between the power train ECU's
B.
Share information between the body ECU's
C.
Share information between body the ECU's and the power train ECU's
D.
Provide entertainment in the vehicle
Answer: _________
Question 79:
An open circuit means that there is a continuity in the circuit.
A.
True
B.
False
Answer: _________
Question 80:
Green colour is used for
A.
Stop lamps
B.
Fuse gauge
C.
Direction indicators
D.
All of the above
Answer: _________
Question 81:
For rewiring the vehicle the cable size of main battery feed circuit is-
A.
$${{44} over {0.012}}$$
B.
$${{28} over {0.012}}$$
C.
$${{28} over {0.112}}$$
D.
$${{14} over {0.012}}$$
Answer: _________
Question 82:
In electrolyte the ratio between pure sulphuric acid and distilled water.
A.
1 : 7
B.
2 : 8
C.
1 : 10
D.
10 : 11
Answer: _________
Question 83:
Which of the following test of primary importance with respect to the lead acid battery is-
A.
Capacity test
B.
High rate discharge test
C.
Life cycle test
D.
All are correct
Answer: _________
Question 84:
The discharged lead-acid battery has on its plates
A.
Lead peroxide
B.
Spongy lead
C.
Lead sulphate
D.
Sulphuric acid
Answer: _________
Question 85:
In case of an automobile battery, following are the reasons which will cause a defect of 1. Very high charging rate 2. High specific gravity of electrolyte 3. Freezing of electrolyte 4. Improper level of electrolyte 5. Mechanical damage due to rough handling or not fixed in the vehicle
A.
Loss of water
B.
Deterioration of plates
C.
Corrosion of terminals and clamps
D.
Internal short circuiting
Answer: _________
Question 86:
The stranded wire has . . . . . . . . . resistance than solid wire.
A.
More
B.
Less
C.
Equal
D.
More or less
Answer: _________
Question 87:
A battery usually has . . . . . . . . cells.
A.
3
B.
6
C.
Both A and B
D.
None of these
Answer: _________
Question 88:
For automobile wiring which type of wire is used-
A.
P. V. C.
B.
Cotton braided wires
C.
Both the wires
D.
None of these
Answer: _________
Question 89:
A battery can be charged by
A.
Applying voltage in the reverse direction to that of charging
B.
Applying a voltage in the same direction to that of discharging
C.
Adding sulphuric acid
D.
Adding water
Answer: _________
Question 90:
End shields are made of-
A.
Cast iron
B.
Aluminium allay
C.
Both of them
D.
None of these
Answer: _________
Question 91:
In a DC generator, magnetic field is produced in the
A.
Armature
B.
Commutator
C.
Carbon brushes
D.
Stator
Answer: _________
Question 92:
All the heavier vehicle use a . . . . . . . . battery system.
A.
2 V
B.
6 V
C.
12 V
D.
24 V
Answer: _________
Question 93:
A battery's reserve capacity is measured in
A.
Amperes
B.
Minutes
C.
Watts
D.
Ampere-hours
Answer: _________
Question 94:
The colour of positive plate of lead-acid battery is
A.
White
B.
Black
C.
Grey
D.
Brown
Answer: _________
Question 95:
Which of the following statement is correct with regard to insulator?
A.
Copper wires are insulators
B.
Insulator is a non-conductor
C.
Semi-conductor is an insulator
D.
Load is an insulator
Answer: _________
Question 96:
In automobile which of the hom is used-
A.
Bulb horns
B.
Air pressure horns
C.
Electric horns
D.
All are correct
Answer: _________
Question 97:
Battery is an assembly of cells in series with the positive terminal of one connected to the negative of the other
A.
True
B.
False
C.
Both A and B
D.
None of these
Answer: _________
Question 98:
The current carrying capacity of cable size $${{14} over {0.012}}$$xa0 is-
A.
22 amp.
B.
14 amp.
C.
7 amp.
D.
10 amp.
Answer: _________
Question 99:
When performing a starter current draw test, high current draw usually indicates
A.
A discharged battery
B.
High resistance
C.
Battery terminal corrosion
D.
Engine problem or a bad starter
Answer: _________
Question 100:
The state of charge of battery that has a specific gravity of 1.190 at 80°F (26.7°C) means
A.
Completely discharged
B.
About $${1 over 2}$$ charged
C.
About $${3 over 4}$$ charged
D.
Fully charged
Answer: _________
Question 101:
For all ground wire we use the colour-
A.
Black
B.
White
C.
Red
D.
Yellow
Answer: _________
Question 102:
While charging a battery, the temperature of the electrolyte should not exceed
A.
48.8°C
B.
51.6°C
C.
54.4°C
D.
73.8°C
Answer: _________
Question 103:
The main lights are-
A.
Head lights
B.
Parking light
C.
Blinker lights
D.
All are correct
Answer: _________
Question 104:
The purpose of serial data communication is to
A.
Spy on the driver by recording vehicle events
B.
Only allow information flow in one direction
C.
Reduce the number of wires between the ECU's by allowing the information sharing
D.
Use more wires on the vehicles
Answer: _________
Question 105:
A . . . . . . . . is an electrical one-way check valve that will allow current to flow in one direction only.
A.
Diode
B.
Transistor
C.
Capacitor
D.
Resistor
Answer: _________
Question 106:
When electrolyte is ready then its specific gravity should be-
A.
100
B.
1000
C.
10
D.
10000
Answer: _________
Question 107:
The ratio between the number of teeth on the starter motor pinion gear and the engine flywheel ring gear is about
A.
1 to 1
B.
1 to 5
C.
1 to 15
D.
1 to 50
Answer: _________
Question 108:
The main task of a battery in automobiles is to
A.
Supply electricity to the vehicle's electrical system at all times while the engine is running
B.
Act as a reservoir or stabilizer of electricity
C.
Supply electricity to the alternator
D.
Supply a large amount of power to turn the starter motor when the engine is being started
Answer: _________
Question 109:
Charging dynamo intermittently or charging less is due to
A.
Loose connection of dynamo terminal
B.
Loose earth connection
C.
Dirty commulator
D.
All are correct
Answer: _________
Question 110:
For positive plates . . . . . . . . is pasted.
A.
Lead peroxide
B.
Lead antimony
C.
Both of them
D.
None of these
Answer: _________
Question 111:
For battery the amount of current depends upon the following factor-
A.
No. of plates
B.
Area of plates
C.
Temperature
D.
All are correct
Answer: _________
Question 112:
It is important that specific gravity . . . . . . . . be used to determine the degree of recharge except at the final stages.
A.
Can
B.
Can not
C.
Remain
D.
None
Answer: _________
Question 113:
When the battery is fully charged than its specific gravity at 27° is-
A.
1.220
B.
1.175
C.
1.100
D.
None
Answer: _________
Question 114:
Which type of water is used in electrolyte?
A.
Ordinary type
B.
Distilled water
C.
Solution of anything
D.
None of these
Answer: _________
Question 115:
Which one of the following correctly indicates the current flow sequence in the starter motor?
A.
Battery - Brush - Commutator - Armature - Commutator - Brush - Field windings - Ground
B.
Battery - Field Windings - Brush - Commutator - Armature - Ground
C.
Battery - Field Windings - Brush - Commutator - Armature - Commutator - Brush - Ground
D.
Battery - Brush - Commutator - Field windings - Armature - Commutator - Brush - Ground
Answer: _________
Question 116:
A type of battery cell that can not be recharged is called-
A.
Secondary cell
B.
Primary cell
C.
Both cells
D.
None of these
Answer: _________
Question 117:
A solenoid uses two coils. These are called
A.
Push-in and pull-out
B.
Pull-in and push-out
C.
Push-in and hold-out
D.
Pull-in and hold-in
Answer: _________
Question 118:
The composition of the electrolyte in a fully charged battery is that
A.
The electrolyte is pure distilled water
B.
The electrolyte is a mixture of 64% distilled water and 36% sulphuric acid by weight
C.
The electrolyte is a mixture of 90% distilled water and 10% sulphuric acid by weight
D.
The electrolyte is pure sulphuric acid
Answer: _________
Question 119:
The term CAN, with reference to automotive electronics, stands for
A.
Controllable Artificial Networks
B.
Computer Assisted Networks
C.
Controller Area networks
D.
None of the above
Answer: _________
Question 120:
The negative plates of a lead acid battery has
A.
Lead peroxide
B.
Spongy lead
C.
Lead sulphate
D.
Sulphuric acid
Answer: _________
Question 121:
The capacity of a battery is expressed in terms of:
A.
Current rating
B.
Voltage rating
C.
Ampere-hour rating
D.
None of the above
Answer: _________
Question 122:
For head lamp circuit fed from terminal on terminal switch we use
A.
Yellow
B.
Brown
C.
Blue
D.
None of these
Answer: _________
Question 123:
To develop high voltage for spark plug of petrol engine
A.
Distributor is installed
B.
Carburettor is installed
C.
Battery is installed
D.
Ignition coil is installed
Answer: _________
Question 124:
The candle power (cp) of parking lights is-
A.
1
B.
3
C.
1.5
D.
2.05
Answer: _________
Question 125:
The controller area network (CAN) is used to
A.
Share information between the power train ECUs
B.
Share information between the body ECU's
C.
Share information between the different ECU's
D.
Provide entertainment in the vehicle
Answer: _________
Question 126:
The frequency of flashing light per minute in a turn indicator is about
A.
8
B.
80
C.
800
D.
None of these
Answer: _________
Question 127:
It is commonly belived that a storage battery stores the . . . . . . . . but it is not true.
A.
Electric energy
B.
Chemical energy
C.
Both of them
D.
None of these
Answer: _________
Question 128:
In magnet opposite poles are-
A.
Attractive
B.
Repulsive
C.
Both are correct
D.
None of these
Answer: _________
Question 129:
In an alternator, the magnetic field is produced in the
A.
Rotor
B.
Stator
C.
Frame
D.
Regulator
Answer: _________
Question 130:
Which of the following statements is correct with regard to alternating current (AC)?
A.
AC has a higher degree of energy than DC
B.
Batteries supply AC
C.
The direction of current changes regularly in AC
D.
Electrons do not flow in AC
Answer: _________
Question 131:
When the battery is half discharged then its specific gravity (27°) is-
A.
1.100
B.
1.175
C.
1.220
D.
None
Answer: _________
Question 132:
Dynamo converts-
A.
Mechanical energy into electrical energy
B.
Electrical energy into mechanical energy
C.
Chemical energy into heat energy
D.
Heat energy into liquid energy
Answer: _________
Question 133:
The battery is an electrochemical device, which means battery
A.
Makes chemicals by mechanical means
B.
Uses chemical action to provide electricity
C.
Has curved instead of flat plates
D.
Does not use an electrolyte
Answer: _________
Question 134:
The colour of taillight in a vehicle is
A.
Red
B.
White
C.
Green
D.
Yellow
Answer: _________
Question 135:
Spark plug may be fouled by
A.
Petrol
B.
Oil
C.
Lead
D.
All of the above
Answer: _________
Question 136:
The extra added resistance can cause a lamp in a parallel circuit to burn brighter than normal.
A.
True
B.
False
Answer: _________
Question 137:
In a starter motor, the field windings are wound around
A.
Armature
B.
Commutator
C.
Brush
D.
Pole shoes
Answer: _________
Question 138:
What type of battery is used in automobiles?
A.
Lead acid battery
B.
Alkaline battery
C.
Both
D.
None
Answer: _________
Question 139:
An automobile contains which of the following circuit?
A.
Head light circuit
B.
Starting circuit
C.
Side light circuit
D.
All are correct
Answer: _________
Question 140:
The three units contained in a regulator for automobile DC generator are
A.
Voltage regulator, current regulator and Zener diode
B.
Voltage regulator, current regulator and cut-out relay
C.
Voltage regulator, current regulator and temperature compensator
D.
Any one of the above
Answer: _________
Question 141:
The purpose of using relays in some of the vehicle's circuit is that
A.
Relays reduces the magnetic field created around the wire when a current is passed through it
B.
Relays eliminates the need of negative wiring
C.
With relays, small current can be used to operate a switch which can then connect the battery directly to the component
D.
None of the above
Answer: _________
Question 142:
Which property may increase if the ground terminal is corroded?
A.
Resistance
B.
Voltage
C.
Electromagnetism
D.
Heat conductivity
Answer: _________
Question 143:
The colour of indicator lights is
A.
White
B.
Amber
C.
Green
D.
Blue
Answer: _________
Question 144:
White colour indicates-
A.
Ignition circuit
B.
All ground wire
C.
Generator circuit
D.
None of these
Answer: _________
Question 145:
The electrolyte must not be allowed to come into contact with eyes or skin.
A.
True
B.
False
Answer: _________
Question 146:
Pitch and tone of electric horn is adjusted by
A.
Air gap
B.
Contact gap
C.
Air gap and contact gap respectively
D.
Contact gap and air gap respectively
Answer: _________
Question 147:
The current is induced, when . . . . . . . . is moved near a coil.
A.
A copper wire coil
B.
A permanent magnet
C.
An electromagnet
D.
An iron rod
Answer: _________
Question 148:
For generator circuit which of the following colour is used-
A.
Black
B.
Blue
C.
Brown
D.
Yellow
Answer: _________
Question 149:
Which of the following pair(s) is/are correctly matched? 1. Spark plug ⇔ 1 mm 2. C. B. point ⇔ 0.3 mm 3. Condenser ⇔ 12 V - 0.2 μF 4. L. T. ⇔ 12 V
A.
1, 2 & 3
B.
1, 2 & 4
C.
1 & 2
D.
1 & 4
Answer: _________
Question 150:
Specific gravity of battery electrolyte is measured to determine the battery's-
A.
Cold cranking amperes
B.
Reverse rating
C.
State of charge
D.
Life expectation
Answer: _________
Question 151:
Transistors can be used to amplify voltage.
A.
True
B.
False
Answer: _________
Question 152:
When the negative pole of one battery is connected to negative pole of other battery and positive pole to other pole, the batteries are said to be connected in-
A.
Parallel
B.
Series
C.
Both
D.
None
Answer: _________
Question 153:
The unit to measure the brightness of the source light is-
A.
Candle power
B.
Power
C.
Candle
D.
None
Answer: _________
Question 154:
The function of a charging system in an automobile is to
A.
Supply electric power
B.
Convert mechanical energy into electrical energy
C.
Continually recharge the battery
D.
Partly convert engine power into electric power
Answer: _________
Question 155:
The number of cells in a 12-volt car battery are
A.
2
B.
4
C.
6
D.
8
Answer: _________
Question 156:
The starting system has two circuits. These are the
A.
Starter circuit and ignition circuit
B.
Insulated circuit and power circuit
C.
Starter circuit and control circuit
D.
Ground circuit and control circuit
Answer: _________
Question 157:
When the batteries are connected in parallel then the current shall be-
A.
Triple
B.
Same
C.
Double
D.
One fourth
Answer: _________
Question 158:
For rewiring the vehicle the cable size of head lamps is-
A.
$${{44} over {0.012}}$$
B.
$${{28} over {0.012}}$$
C.
$${{14} over {0.001}}$$
D.
None
Answer: _________
Question 159:
The specific gravity is measured by-
A.
Hydrometer
B.
Fathometer
C.
Lactometer
D.
None of the above
Answer: _________
Question 160:
Increasing the number of plates per cell increase-
A.
The voltage
B.
The capacity
C.
Both
D.
None
Answer: _________
Question 161:
For fused auxiliary circuit the colour is used-
A.
Yellow
B.
Green
C.
Blue
D.
Brown
Answer: _________
Question 162:
Electrolyte consists of-
A.
Pure sulphuric acid
B.
Distilled water
C.
Both A and B
D.
None of these
Answer: _________
Question 163:
Separator is made up of which of the following material?
A.
Wood
B.
Plastic
C.
Both A and B
D.
None of these
Answer: _________
Question 164:
When fully charged, the specific gravity of acid in a battery is
A.
0.74
B.
1.00
C.
1.18
D.
1.28
Answer: _________
Question 165:
The frequency of vibrating contact type regulator for DC generator is
A.
20 per second
B.
200 per second
C.
20 per minute
D.
200 per minute
Answer: _________
Question 166:
The directional signal lights are operated-
A.
Manually
B.
Automatically
C.
Both A and B
D.
None of these
Answer: _________
Question 167:
In modern vehicles, the headlight dimming switch is mounted on the
A.
Dashboard
B.
Floor
C.
Side panel
D.
Steering column
Answer: _________
Question 168:
. . . . . . . . light illuminate back of the car in the night so that the other vehicle coming behind it are able to see it.
A.
Head
B.
Parking
C.
Tail
D.
Stop
Answer: _________
Question 169:
If two batteries of 6 volts each are connected in series, then the total capacity of this set will be-
A.
12 volts
B.
6 volts
C.
1 volts
D.
18 volts
Answer: _________
Question 170:
The candle power of stop lights is-
A.
1.5
B.
2.5
C.
3.5
D.
3
Answer: _________
Question 171:
What is the maximum intensity of upper beam?
A.
1 cp
B.
6 cp
C.
75000 cp
D.
3 cp
Answer: _________
Question 172:
Which is a type of bulb?
A.
Bayonet type
B.
Prefocus type
C.
Festoon type
D.
All are correct
Answer: _________
Question 173:
The basic purpose of the over-running clutch in the starter drive is to
A.
Assist the solenoid during cranking
B.
Pull the starter gear out of mesh
C.
Disengage the armature when the engine starts
D.
Keep the hold-in winding energized during cranking
Answer: _________
Question 174:
The candle power of Head light is-
A.
1
B.
3
C.
6
D.
50000 -75000
Answer: _________
Question 175:
To measure current in a circuit, the ammeter is connected in
A.
Series
B.
Parallel
C.
Either series or parallel
D.
Both series and parallel
Answer: _________
Question 176:
Fully discharged battery has sp. gravity (at 27°)-
A.
1.220
B.
1.175
C.
1.100
D.
None of these
Answer: _________
Question 177:
The function of the voltage regulator in an alternator is that it
A.
Regulates the alternator's output voltage by controlling the stator speed
B.
regulates the alternator's output voltage by changing the current (amperage) value of the stator's field current
C.
Stops the alternator when the alternator's output voltage exceeds the specified value
D.
None of the above
Answer: _________
Question 178:
Blue light indicates
A.
All ground wired
B.
Head lamp circuit
C.
Flasher unit
D.
Generator circuit
Answer: _________
Question 179:
The container of a lead-acid battery is made of-
A.
Hard rubber
B.
Plastic
C.
Bituminous
D.
All are correct
Answer: _________
Question 180:
Body of the dynamo is made of . . . . . . . . steel in circular pipe shape.
A.
Oil
B.
Black
C.
Milk
D.
None of these
Answer: _________
Question 181:
The specific gravity of acid in a fully charged battery at 80°F (26.7°C) is generally
A.
0.75
B.
1
C.
1.27
D.
1.8
Answer: _________
Question 182:
If a battery is continuously undercharged it becomes-
A.
Acideted
B.
Leaded
C.
Sulphated
D.
None
Answer: _________
Question 183:
Cut out relay is also called as
A.
Generator control
B.
AC generator
C.
DC generator
D.
Circuit breaker
Answer: _________
Question 184:
The positive plates of a lead acid battery has
A.
Lead peroxide
B.
Spongy lead
C.
Lead sulphate
D.
Sulphuric acid
Answer: _________
Question 185:
Ignition coil is used to
A.
Step up current
B.
Step down current
C.
Step up voltage
D.
Step up power
Answer: _________
Question 186:
Which of the following is the main component of a battery?
A.
Battery plates
B.
Separators
C.
Electrolyte
D.
All are correct
Answer: _________
Question 187:
The acid used in automobile battery
A.
Hydrochloric acid
B.
Hydrofluoric acid
C.
Nitric acid
D.
Sulphuric acid
Answer: _________
Question 188:
The current carrying capacity of cable size $${{28} over {0.012}}$$xa0 is-
A.
22 amp.
B.
14 amp.
C.
7 amp.
D.
10 amp.
Answer: _________
Question 189:
In a fuel tank, when the float is near the top of the tank, the resistance is
A.
Small
B.
High
C.
Always same
D.
None of these
Answer: _________
Question 190:
In magnet, same poles are-
A.
Attractive
B.
Repulsive
C.
Both are correct
D.
None of these
Answer: _________
Question 191:
At normal room temperature, the relative density of an electrolyte in a lead acid battery should be
A.
13.6
B.
12.6
C.
1.28
D.
0.128
Answer: _________
Question 192:
The type of reflector used for automobile headlights is
A.
Spherical
B.
Parabolic
C.
Hyperbolic
D.
Circular
Answer: _________
Question 193:
The ECU in the CAN system
A.
Always use all of the information that is provided on the communication circuit
B.
Use only the information that they need to operate the system
C.
Do not use any of the information shared on the communication circuit
D.
Do not provide any functions whatsoever
Answer: _________
Question 194:
When two battery of 6 volt are connected in series then equivalent result is-
A.
6 V
B.
12 V
C.
3 V
D.
4 V
Answer: _________
Question 195:
The magnetic field required for starting motor operation is provided by the
A.
Armature
B.
Field windings
C.
Solenoid
D.
None of these
Answer: _________
Question 196:
What is the specific gravity for a fully charged battery?
A.
Between 1.23 and 1.28
B.
Between 5.23 and 5.92
C.
Between 1.11 and 2.93
D.
None of the above
Answer: _________
Question 197:
The tachometer in vehicles shows the rate of rotation of the engine's crankshaft i.e. engine rpm.
A.
True
B.
False
Answer: _________
Question 198:
The amount of current a battery can produce is dependent on
A.
Plate thickness
B.
Plate surface area
C.
Strength of acid
D.
Discharge of load
Answer: _________
Question 199:
The preferred method of recharging a dead battery is
A.
Fast charging
B.
Slow charging
C.
Trickle charging
D.
None of these
Answer: _________
Answer Key
1:
D
2:
A
3:
A
4:
B
5:
D
6:
C
7:
B
8:
A
9:
D
10:
C
11:
D
12:
D
13:
A
14:
A
15:
C
16:
D
17:
A
18:
D
19:
C
20:
C
21:
A
22:
C
23:
A
24:
B
25:
B
26:
A
27:
C
28:
C
29:
A
30:
A
31:
A
32:
C
33:
D
34:
B
35:
B
36:
A
37:
B
38:
B
39:
A
40:
B
41:
D
42:
B
43:
B
44:
D
45:
D
46:
A
47:
D
48:
B
49:
D
50:
A
51:
C
52:
A
53:
A
54:
D
55:
D
56:
A
57:
A
58:
B
59:
A
60:
B
61:
C
62:
A
63:
C
64:
B
65:
C
66:
A
67:
D
68:
A
69:
D
70:
B
71:
C
72:
C
73:
C
74:
D
75:
A
76:
C
77:
D
78:
B
79:
B
80:
D
81:
A
82:
A
83:
D
84:
C
85:
B
86:
B
87:
C
88:
C
89:
A
90:
C
91:
D
92:
D
93:
B
94:
D
95:
B
96:
D
97:
A
98:
C
99:
D
100:
B
101:
A
102:
C
103:
D
104:
C
105:
A
106:
B
107:
C
108:
D
109:
D
110:
A
111:
D
112:
B
113:
A
114:
B
115:
D
116:
B
117:
D
118:
B
119:
C
120:
B
121:
C
122:
C
123:
D
124:
B
125:
C
126:
B
127:
A
128:
A
129:
A
130:
C
131:
B
132:
A
133:
B
134:
A
135:
D
136:
B
137:
D
138:
A
139:
D
140:
B
141:
C
142:
A
143:
B
144:
A
145:
A
146:
D
147:
B
148:
D
149:
A
150:
C
151:
A
152:
A
153:
A
154:
C
155:
C
156:
C
157:
C
158:
B
159:
A
160:
B
161:
B
162:
C
163:
C
164:
D
165:
B
166:
C
167:
D
168:
C
169:
A
170:
D
171:
C
172:
D
173:
C
174:
D
175:
A
176:
C
177:
B
178:
B
179:
D
180:
C
181:
C
182:
C
183:
D
184:
A
185:
C
186:
D
187:
D
188:
B
189:
A
190:
B
191:
C
192:
B
193:
B
194:
B
195:
B
196:
A
197:
A
198:
B
199:
B