Chemical Engineering - Chemical Engineering Basics

31. 

Unit molar solution of __________ is the best conductor of electricity.

A. sodium chloride
B. acetic acid
C. sulphuric acid
D. sucrose

Answer: Option C

Explanation:

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32. 

A coal with high __________ content will ignite most easily.

A. hydrogen
B. oxygen
C. volatile matter
D. fixed carbon

Answer: Option C

Explanation:

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33. 

The weight of a body at the centre of the earth is

A. infinite.
B. zero.
C. same as on the surface of the earth.
D. none of these.

Answer: Option B

Explanation:

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34. 

For the same heat input & compression ratio, efficiency of Otto cycle is higher than that of diesel cycle, because in Otto cycle.

A. heat rejection is lower.
B. expansion & compression are isentropic.
C. maximum temperature is higher.
D. combustion is at constant volume.

Answer: Option A

Explanation:

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35. 

The single most imortant requirement for a turbine blade material is

A. damping
B. resilience
C. creep resistaned
D. DBTT

Answer: Option C

Explanation:

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