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:
|
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:
|
18. |
__________ furnace is generally used in the non-ferrous foundaries. |
A. |
Direct arc | B. |
Indirect arc | C. |
Resistance | D. |
Induction |
Answer: Option B
Explanation:
|
19. |
Steel & cast iron pipes are produced by __________ casting. |
A. |
slush | B. |
die | C. |
investment | D. |
true centrifugal |
Answer: Option D
Explanation:
|
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:
|