Mechanical seals are used
A) To prevent vibrations
B) To prevent leakage
C) To reduce friction
D) To balance the equipment
E) None of the above
Correct Answer:
Verified
Q7: An idler pulley is used for
A)Changing the
Q8: Trepanning operation is used for
A)Producing large holes
B)Under
Q9: The difference between a plate and sheet
Q10: Arc blow is a welding defect which
Q11: At what rpm should a lathe be
Q13: The thickness of clearance can be checked
Q14: A process applying oxide coating on aluminium
Q15: The advantage of mercury switch is
A)No mechanical
Q16: The advantage of electronically operated automatic control
Q17: International Prototype Meter is made of
A)Copper
B)Mild steel
C)Cast
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