Chemical Engineering - Chemical Engineering Basics
Exercise :: Chemical Engineering Basics - Section 6
| 41. |
In electrical resistance welding, distortion results from the use of improper |
| A. |
clamping methods | | B. |
electrodes | | C. |
current | | D. |
filler material |
Answer: Option A
Explanation:
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| 42. |
The conventional mechnical transducer, which converts pressure signal to displacement signal is |
| A. |
spring | | B. |
manometer | | C. |
strain gauge | | D. |
none of these |
Answer: Option B
Explanation:
|
| 43. |
Pick out the wrong statement. |
| A. |
Seam welding, projection welding & spot welding are the classification of electrical resistance welding. | | B. |
Electrode tip in spot welding is of copper and the tip diameter should be equal to t (where, t = plate thickness to be welded) | | C. |
In spot welding, two pieces to be joined are overlapped and placed between two electrodes. | | D. |
Mild steel sheet can not be spot welded. |
Answer: Option D
Explanation:
|
| 44. |
Austempering of steel requires.it to be heated to 875°C followed by sudden cooling to 250-525°C, thereby changing austenite to |
| A. |
sorbite | | B. |
bainite | | C. |
martensite | | D. |
troostite |
Answer: Option B
Explanation:
|
| 45. |
A compact estimate about the amount of materials handling between various work stations is obtained from the |
| A. |
gantt chart | | B. |
bin chart | | C. |
string diagram | | D. |
travel chart |
Answer: Option D
Explanation:
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