Automobile Engineering - Study Mode

[#76] The formula for Iso-octane is
Correct Answer

(A) C 8 H 18

Explanation

Solution: The formula for Iso-octane is C 8 H 18

[#77] The mechanical efficiency $$left( {{eta _{ ext{m}}}}
ight)$$ of an I.C. engine is equal to (where I.P. = Indicated power, B.P. = Brake power and F.P. = Frictional power)
Correct Answer

(B) $$frac{{{ ext{B}}{ ext{.P}}{ ext{.}}}}{{{ ext{I}}{ ext{.P}}{ ext{.}}}}$$

Explanation

Solution: The mechanical efficiency $$left( {{eta _{ ext{m}}}}
ight)$$ of an I.C. engine is equal to $$frac{{{ ext{B}}{ ext{.P}}{ ext{.}}}}{{{ ext{I}}{ ext{.P}}{ ext{.}}}}$$ Where I.P. = Indicated power B.P. = Brake power F.P. = Frictional power

[#78] The function of a second ring is that it is a
Correct Answer

(B) Compression ring and aids the top ring in sealing and cooling

Explanation

Solution: The function of a second ring is that it is a Compression ring and aids the top ring in sealing and cooling

[#79] The starting system includes
Correct Answer

(A) A battery, a starter, and an ignition switch

Explanation

Solution: The starting system includes A battery, a starter, and an ignition switch

[#80] The parking brake generally acts on
Correct Answer

(B) Rear wheels

Explanation

Solution: The parking brake generally acts on Rear wheels