Chemical Engineering - Chemical Engineering Basics

1. 

Which of the following is a boiler accessory i.e., not a boiler mounting ?

A. Blow off cock
B. Feed check valve
C. Feed water pump
D. Stop valve

Answer: Option C

Explanation:

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2. 

Which of the following forces does not act on a fluid at rest ?

A. Viscous force
B. Gravity force
C. Hydrostatic force
D. Surface tension force

Answer: Option A

Explanation:

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3. 

Density in the solid state is slightly less than that in its liquid state, in case of

A. carbon dioxide
B. water
C. mercury
D. none of these.

Answer: Option B

Explanation:

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4. 

Strain hardening effect in metals subjected to cold working is due to the __________ mechanism.

A. slip
B. fracture
C. winning
D. dislocation

Answer: Option D

Explanation:

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5. 

__________ number determines whether the fluid flow in an open channel is supercritical, critical or sub-critical.

A. Mach
B. Reynolds
C. Froude
D. Weber

Answer: Option C

Explanation:

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