Chemical Engineering - Chemical Engineering Basics

1. 

LVDT used for displacement measurement is a/an __________ transducer.

A. passive
B. active
C. capacitive
D. none of these

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

2. 

A static fluid can not have

A. zero shear stress.
B. positive normal stress.
C. non-zero shear stress.
D. none of these.

Answer: Option C

Explanation:

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3. 

In a forced draft cooling tower, water is cooled from 95 to 80°F by exposure to air with a wet bulb temperature of 70°F. In this case, the

A. range is 15°F.
B. approach is 10°F.
C. both (a) & (b).
D. neither (a) nor (b).

Answer: Option C

Explanation:

Temperature range (T1 - T2) = 15°F.

Temperature approach (T2 - tw) = 10°F.

Wet-bulb temperature tw = 70°F.


4. 

Which of the following is the most elastic material ?

A. Plastic
B. Glass
C. Steel
D. Rubber

Answer: Option C

Explanation:

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5. 

The 'laughing gas' is

A. nitrous oxide
B. nitric oxide
C. nitrogen trioxide
D. nitrogen pentoxide

Answer: Option A

Explanation:

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