Chemical Engineering Mcqs

Which of the following is an example of cathodic protection of metals against corrosion ?

(A) Painted steel
(B) Galvanised iron
(C) Case hardened steel
(D) Lead lined reactor

Submitted By :Ali Uppal

The _________________ of a double acting reciprocating pump as compared to the single acting pump will be almost double ?

(A) Flow output
(B) Head developed
(C) Overall efficiency
(D) Weight

Submitted By :Ali Uppal

Out of the following, the alloy which has equal percentage of constituents, is__________________?

(A) White metal
(B) Gun metal
(C) Duralumin
(D) Constantan

Submitted By :Ali Uppal

Leakage in a cooking gas cylinder is detected by___________________?

(A) Radio-isotopes
(B) Pouring soap solution on the surface and locating the gas bubbles
(C) Halide torch
(D) Pungent smell of mercaptans present in the gas

Submitted By :Ali Uppal

Which of the following is not a characteristic observed in material failure by fatigue fracture ?

(A) Plastic deformation of material does not occur
(B) Initiation of crack from below the surface does not occur
(C) Initiation of crack occurs on the surface of the machine part
(D) Presence of both rough & smooth zone with conchoidal markings in smooth zone of the

Submitted By :Ali Uppal

The bolt is subjected to _______________ when the nut is tightened by putting the washer beneath it?

(A) Tension
(B) Shear
(C) Compression
(D) Bending & tension

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The joint for soldering is supported by binding wire made of ____________________?

(A) Mild steel
(B) Copper
(C) Soft iron
(D) Stainless steel

Submitted By :Ali Uppal

Tesla metre per ampere (T. m/A) is the unit for the measurement of_______________?

(A) Magnetic susceptibility
(B) Magnetic moment
(C) Permeability of free space
(D) Flux density

Submitted By :Ali Uppal

Consider the equilibrium A(g) + B(g) = AB(g). When the partial pressure of A is 10-2 atm, the partial pressure of B is 10-3 atm and the partial pressure of AB is 1 atm, the equilibrium constant ‘K’ is____________________?

(A) 10 atm-1
(B) 105 atm-1
(C) 10 (dimensionless)
(D) 105 (dimensionless)

Submitted By :Ali Uppal

Even though heat transfer co-efficient in boiling liquids is large, use of fins is advantageous, when the entire surface is exposed to ________________ boiling ?

(A) Film
(B) Nucleate
(C) Transition
(D) All modes of

Submitted By :Ali Uppal

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