Exercise: Workshop Technology

Questions for: Workshop Technology

For gas welding, the presure desired at the welding torch for acetylene is
A:
7 to 103 kN/m2
B:
70 to 280 kN/m2
C:
280 to 560 kN/m2
D:
560 to 840 kN/m2
Answer: A
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Metal patterns require __________ draft allowance than wooden patterns.
A:
more
B:
less
C:
D:
Answer: B
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The oxy-acetylene gas used in gas welding produce a flame temperature of
A:
1800°C
B:
2100°C
C:
2400°C
D:
3200°C
Answer: D
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A three high rolling mill consists of three rolls placed one above the other. Which of the following statement is correct?
A:
The upper and middle rolls rotate in the same direction whereas the bottom roll rotates in opposite direction.
B:
The upper and bottom rolls rotate in the same direction whereas the middle roll rotate in opposite direction.
C:
The bottom and middle roll rotate in the same direction.
D:
any one of the above
Answer: B
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Loam sand is a mixture of
A:
30% sand and 70% clay
B:
50% sand and 50% clay
C:
70% sand and 30% clay
D:
90% sand and 10% clay
Answer: B
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