Chemical Engineering - Chemical Engineering Basics
Exercise :: Chemical Engineering Basics - Section 12
| 6. |
Filler metal is used in __________ welding. |
| A. |
braze | | B. |
electric spot | | C. |
projection | | D. |
seam |
Answer: Option A
Explanation:
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| 7. |
Acetylene should never be conveyed through __________ pipe, as it forms an unstable compound that dissociates violently at the slightest shock. |
| A. |
stainless steel | | B. |
copper | | C. |
aluminium | | D. |
brass |
Answer: Option B
Explanation:
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| 8. |
Which of the following contains the least percentage of carbon ? |
| A. |
Pig iron | | B. |
Wrought iron | | C. |
Cast iron | | D. |
Malleable iron |
Answer: Option B
Explanation:
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| 9. |
Electric arc furnace is employed mainly for the production of __________ steel. |
| A. |
high carbon | | B. |
alloy | | C. |
mild | | D. |
plain carbon |
Answer: Option B
Explanation:
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| 10. |
Heat treatment of steel is done mainly to change its |
| A. |
mechanical properties. | | B. |
physical properties, | | C. |
chemical composition. | | D. |
all 'a', 'b' & 'c'. |
Answer: Option A
Explanation:
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