Mechanical Engineering - Engineering Materials
Exercise :: Engineering Materials - Section 6
| 1. |
In the middle part of the blast furnace (zone of absorption), the temperature is |
| A. |
400° to 700°C | | B. |
800°C to 1000°C | | C. |
1200°C to 1300°C | | D. |
1500°C to 1700°C |
Answer: Option B
Explanation:
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| 2. |
The temperature in the upper part of the blast furnace (zone of reduction) is __________ that of the middle part. |
| A. |
equal to | | B. |
less than | | C. |
more than |
Answer: Option B
Explanation:
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| 3. |
The temperature point at which the change starts on heating the steel is called |
| A. |
lower critical point | | B. |
upper critical point | | C. |
point of recalescence | | D. |
point of decalescence |
Answer: Option A
Explanation:
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| 4. |
Aluminium bronze has high resistance to corrosion. |
Answer: Option B
Explanation:
|
| 5. |
Manganese bronze contains more copper than silicon bronze. |
Answer: Option B
Explanation:
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