Chemical Engineering - Chemical Engineering Basics
Exercise :: Chemical Engineering Basics - Section 20
| 1. |
The instrument based on the following principle is used for the measurement of oxygen only in the flue gases. |
| A. |
Chemical absorption. | | B. |
Thermal conductivity. | | C. |
Infrared absorption. | | D. |
Paramagnetism. |
Answer: Option D
Explanation:
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| 2. |
Work study deals with the __________ study. |
| A. |
time | | B. |
motion | | C. |
both (a) & (b) | | D. |
neither (a) nor (b) |
Answer: Option C
Explanation:
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| 3. |
Maximum change in the hardness of mar tensite occurs in the carbon content range of __________ percent in steel. |
| A. |
0.01 to 0.10 | | B. |
0.2 to 0.4 | | C. |
0.5 to 0.7 | | D. |
0.8 to 1.0 |
Answer: Option B
Explanation:
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| 4. |
Knocking tendency in a petrol engine decreases with increasing |
| A. |
supercharging | | B. |
compression ratio | | C. |
wall temperature | | D. |
engine speed |
Answer: Option D
Explanation:
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| 5. |
Hooke's law |
| A. |
applies to elastic deformation. | | B. |
applies beyond limit of proportionality in stress-strain curve. | | C. |
states that stress is inversely proportional to strain upto elastic limit. | | D. |
noneofthese. |
Answer: Option A
Explanation:
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