Chemical Engineering Mcqs

Secondary hardening in steels arises out of the _____________________?

(A) Precipitation of fine alloy carbides at high temperatures

(B) Refinement of ferrite grain size by working

(C) Decomposition of retained austenite upon heat treatment

(D) Precipitation of complex inter-metallic upon heat treatment

Submitted By: Ali Uppal


Submitted By: Ali Uppal


Submitted By: Ali Uppal


Submitted By: Ali Uppal


Annealing of cast iron__________________?

(A) Softens it to facilitate machining

(B) Decreases the free carbon

(C) Increases the strength

(D) None of these

Submitted By: Ali Uppal


Thermistors are used in _____________ devices?

(A) Voltage measuring

(B) Temperature measuring

(C) Temperature compensating

(D) Both

Submitted By: Ali Uppal


The dew point of moist air becomes ____________________ with decrease in its relative humidity ?

(A) Less than the wet bulb temperature

(B) More than the wet bulb temperature

(C) More than the dry bulb temperature

(D) Equal to wet bulb temperature

Submitted By: Ali Uppal


Submitted By: Ali Uppal


The most commonly used moderator in nuclear power plants is__________________?

(A) Graphite

(B) Light water

(C) Heavy water

(D) Beryllium

Submitted By: Ali Uppal


Submitted By: Ali Uppal