Chemical Engineering Basics - Study Mode

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[#166] Inspection of surface and sub-surface cracks in non-magnetic alloys is done by __________ testing method.

(A) X-ray

(B) Magnetic particle

(C) Dye penetrant

(D) Ultrasonic

Correct Answer

(C) Dye penetrant

[#167] For a thermodynamic system undergoing a process, which of the following pairs best expresses the relationship similar to that expressed by the pressure volume plot ?

(A) Temperature - entropy

(B) Temperature - pressure

(C) Enthalpy - entropy

(D) Enthalpy - pressure

Correct Answer

(A) Temperature - entropy

[#168] In "Imperial Smelting Process" for extraction of zinc, zinc vapour thus produced is quenched in the external condenser by the use of the following :

(A) Jet of water at high pressure

(B) Blast of air

(C) Mixture of water and air

(D) Rain of molten lead

Correct Answer

(D) Rain of molten lead

[#169] Milligram of KOH required to saponify 1 gm of oil is called its __________ number.

(A) Saponification

(B) Acid

(C) Precipitation

(D) Emulsion

Correct Answer

(A) Saponification

[#170] A controller action in which there is a con-tinous relation between the values of controlled variable and the rate of change of conrolled output signal is called the __________ action.

(A) Proportional

(B) Integral

(C) Derivative

(D) None of these

Correct Answer

(B) Integral