Chemical Engineering - Chemical Engineering Basics

26. 

__________ cycle is the most efficient thermodynamic cycle.

A. Diesel
B. Otto
C. Rankine
D. Carnot

Answer: Option D

Explanation:

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27. 

Dew point of air indicates its

A. moisture content
B. dryness
C. latent heat
D. coolness

Answer: Option A

Explanation:

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28. 

Out of the following, __________ waves have the largest wavelength.

A. radio
B. light
C. X-ray
D. Gamma-ray

Answer: Option A

Explanation:

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29. 

Pick the odd man out of the following.

A. Calorising
B. Pack carburising
C. Nitriding
D. Cyaniding

Answer: Option A

Explanation:

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30. 

A furnace is made of a refractory brick wall of thickness 0.5 metre and thermal conductivity 0.7 W/m.°K For the same temperature drop and heat loss, this refractory wall can be replaced by a layer of diatomaceous earth of thermal conductivity 0.14 W/m.K and thickness __________ metre.

A. 0.01
B. 0.1
C. 0.25
D. 0.5

Answer: Option B

Explanation:

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