Chemical Engineering - Chemical Engineering Basics
Exercise :: Chemical Engineering Basics - Section 8
| 36. |
Dielectric |
| A. |
is an electrical insulating material. | | B. |
of low resistivity is preferred. | | C. |
should have high thermal conductivity. | | D. |
need not defy the corrosive action of chemicals. |
Answer: Option A
Explanation:
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| 37. |
Normalising of an object does not |
| A. |
refine coarse grain structure obtained during hot working. | | B. |
improve ductility. | | C. |
improve yield strength. | | D. |
improve machanical properties. |
Answer: Option B
Explanation:
|
| 38. |
Plasma is |
| A. |
a high temperature neutral gas. | | B. |
nothing but ionised gas. | | C. |
a source of steady and highest controllable pressure. | | D. |
formed at very low temperature. |
Answer: Option B
Explanation:
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| 39. |
The machanism involved in the removal of metal in drilling operation is by |
| A. |
compression | | B. |
extrusion | | C. |
shearing | | D. |
both 'b' & 'c' |
Answer: Option D
Explanation:
|
| 40. |
Thermal conductivity of a material does not depend upon its |
| A. |
mass | | B. |
volume | | C. |
surface area | | D. |
all 'a', 'b' & 'c' |
Answer: Option D
Explanation:
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