Chemical Engineering questions and answers

Chemical Engineering Questions and Answers

A set of Chemical Engineering questions and answers to test your understanding of developing and designing chemical manufacturing processes. Ideal for Chemical engineering students and candidates preparing for job aptitde tests or interviews.

31.

If a nuclear reactor produces more fissile nuclear fuel than it consumes, then it is called a __________ reactor.

A.

critical

B.

breeder

C.

fertile

D.

heterogenous

Correct answer is B

No explanation has been provided for this answer.

32.

A solar cell converts the sunlight directly into __________ energy.

A.

thermal

B.

electrical

C.

mechanical

D.

chemical

Correct answer is B

No explanation has been provided for this answer.

33.

Resistance of an electrical conductor is proportional to its (where, l = length and A = cross-sectional area of the conductor)

A.

A

B.

l

C.

A2

D.

both 'a' & 'b'

Correct answer is D

No explanation has been provided for this answer.

34.

Annealing of white cast iron produces __________ iron.

A.

grey

B.

nodular

C.

malleable

D.

spheroidal

Correct answer is C

No explanation has been provided for this answer.

35.

Maxwell's thermodynamic relations applies to the

A.

chemical systems in equilibrium.

B.

mechanical systems in equilibrium.

C.

irreversible thermodynamic processes.

D.

reversible thermodynamic processes.

Correct answer is A

No explanation has been provided for this answer.

36.

Which of the following is not an explosive?

A.

TNT

B.

CMC

C.

RDX

D.

Lead azide

Correct answer is B

No explanation has been provided for this answer.

37.

Evaporative cooling process employs a combination of cooling and humidification in which the

A.

sensible heat is added.

B.

sensible heat is removed and the latent heat is added.

C.

latent heat is removed.

D.

sensible heat is added and latent heat is removed.

Correct answer is B

No explanation has been provided for this answer.

38.

A high pressure boiler generates steam at a pressure greater than __________ kg/cm2 .

A.

10

B.

30

C.

50

D.

80

Correct answer is D

No explanation has been provided for this answer.

39.

In troposphere (the weather domain), the temperature 't' at height 'h' above the sea level in metres is given by (where, temperature at sea level is 15°C and t is in °C.)

A.

t = 15 - 0.0065 h

B.

t = 15 + 0.0065 h

C.

t = 0.0035 h - 15

D.

t = 15 - 0.0035 h

Correct answer is A

No explanation has been provided for this answer.

40.

Auto collimator is used to check

A.

flatness

B.

angle

C.

rotor balancing

D.

roughness

Correct answer is B

No explanation has been provided for this answer.