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.

16.

Machinability of hard alloys and tool steels is improved by

A.

spherodising

B.

annealing

C.

tempering

D.

normalising

Correct answer is B

No explanation has been provided for this answer.

17.

Which of the following parameters is not responsible for the heat loss from a hot steam carrying bare pipe surface located in a room without fans ?

A.

Emissivity of pipe surface.

B.

Diameter & length of the pipe.

C.

Temperature of hot pipe surface & that of air in the room.

D.

none of these.

Correct answer is D

No explanation has been provided for this answer.

18.

Nuclear fission of one atom of uranium-235 produces the energy equivalent to about __________ MeV.

A.

20

B.

200

C.

500

D.

1000

Correct answer is B

No explanation has been provided for this answer.

19.

In extrusion of metals, which of the following statements is true ?

A.

speed of the extruded material is same as that of ram speed.

B.

Redundant work is a function of the die angle.

C.

Relative motion between the billet surface and the container wall is always present.

D.

Hollow ram is used for indirect extrusion.

Correct answer is D

No explanation has been provided for this answer.