Chemical Engineering - Chemical Engineering Basics
Exercise :: Chemical Engineering Basics - Section 9
| 31. |
Hot extrusion of aluminium is done in the temperature range of __________ °C. |
| A. |
550-600 | | B. |
450-500 | | C. |
350-400 | | D. |
250-300 |
Answer: Option C
Explanation:
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| 32. |
Stellite is a __________ material. |
| A. |
ferrous | | B. |
ceramic | | C. |
cemented carbide | | D. |
non ferrous cast alloy cutting tool |
Answer: Option D
Explanation:
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| 33. |
Percentage of argon (by volume) in dry atmospheric air is about |
Answer: Option D
Explanation:
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| 34. |
An abrupt and sudden fall in the readinp of barometer is an indication of the |
| A. |
storm | | B. |
rain | | C. |
clear weather | | D. |
cold wave |
Answer: Option A
Explanation:
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| 35. |
Steam condenser tubes are made of ad-mirability brass, in which percentage of zinc & copper are __________ respectively. |
| A. |
70 & 30 | | B. |
30 & 70 | | C. |
50 & 50 | | D. |
90 & 10 |
Answer: Option A
Explanation:
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