Chemical Engineering - Chemical Engineering Basics
Exercise :: Chemical Engineering Basics - Section 6
| 16. |
Metallic surveying tapes are made of __________ which has a low co-efficient of expansion & enough strength. |
| A. |
invar | | B. |
hastealloy | | C. |
duralumin | | D. |
monel metal |
Answer: Option A
Explanation:
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| 17. |
Which of the following is a unit of time ? |
| A. |
Barn | | B. |
Light year | | C. |
Angstrom | | D. |
none of these |
Answer: Option D
Explanation:
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| 18. |
__________ furnace is generally used in the non-ferrous foundaries. |
| A. |
Direct arc | | B. |
Indirect arc | | C. |
Resistance | | D. |
Induction |
Answer: Option B
Explanation:
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| 19. |
Steel & cast iron pipes are produced by __________ casting. |
| A. |
slush | | B. |
die | | C. |
investment | | D. |
true centrifugal |
Answer: Option D
Explanation:
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| 20. |
The taper provided on pattern for its easy & clean withdrawal from the mould is termed as the __________ allowance. |
| A. |
casting | | B. |
pattern | | C. |
draft | | D. |
distoration |
Answer: Option C
Explanation:
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