Chemical Engineering - Chemical Engineering Basics

6. 

The following type of bonding is strongly directional in solids.

A. Vander Waal's
B. Ionic
C. Metallic
D. Covalant

Answer: Option D

Explanation:

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7. 

Fog is an example of colloidal system of

A. solid dispersed in gas.
B. solid dispersed in liquid.
C. liquid dispersed in gas.
D. gas dispersed in liquid.

Answer: Option C

Explanation:

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8. 

Chromium molybdenum steel can not be welded using __________ welding.

A. thermit
B. electrical resistance
C. oxy-acetylene
D. any of these

Answer: Option B

Explanation:

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9. 

Speisses is a mixture of the following:

A. Arsenides of heavy metals.
B. Antimonides of heavy metals.
C. Arsenides & antimonides of heavy metals.
D. Iron, cobalt and nickel.

Answer: Option A

Explanation:

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10. 

Auto collimator is used to check

A. flatness
B. angle
C. rotor balancing
D. roughness

Answer: Option B

Explanation:

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