Sleeve bearings
A) Are normally of bronze
B) Have self lubricating properties
C) Are used where noise is to be avoided
D) All of the above
Correct Answer:
Verified
Q7: The pair used for frequency converter is
A)Squirrel
Q8: The motor in close are used for
Q9: The motor enclosure used in wood-working industry
Q10: The motor enclosure used for industrial purposes
Q11: Ball-bearings are
A)Used up to 75 kW motors
B)Of
Q13: Hot bearings of a DC motor may
Q14: The least expensive drive is
A)Belt drive
B)Rope drive
C)Chain
Q15: For very high speed ratio the indispensable
Q16: 15 minute rated motors are suitable for
A)Light
Q17: For medium duty cranes the short time
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