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1. An elevator drive is required to operate in
(A) one quadrant only
(B) two quadrants
(C) three quadrants
(D) four quadrants
Answer ⇓
2. The starting torque offered by conveyor belt is
(A) zero
(B) high
(C) medium
(D) low
Answer ⇓
3. Light duty cranes are generally uses in
(A) power houses.
(B) pumping station.
(C) automobile workshops.
(D) all of the above.
Answer ⇓
4. DC series motor is most suitable for
(A) lathes
(B) pumps
(C) cranes
(D) punch press
Answer ⇓
5. Cummulatively compounded motors are used in the applications where we required
(A) constant speed
(B) sudden heavy load for a short duration
(C) variable speed
(D) low starting torque
Answer ⇓
6. Which of the following DC motor can never be used for belt collected load?
(A) Series
(B) Shunt
(C) Cummuletively compounded
(D) Differentially compounded
Answer ⇓
7. The device which prefers variable speed operation is
(A) refrigerator
(B) ceiling fan
(C) water pump
(D) exhuast fan
Answer ⇓
8. The capacity of a crane is expressed in term of
(A) span
(B) tonnes
(C) type of drive
(D) any of the above
Answer ⇓
9. Which motor is generally used in vacuum cleaner?
(A) Shunt.
(B) Series.
(C) Cummulatively compounded.
(D) Differentially compounded.
Answer ⇓
10. Which of the following is most suitable DC motor for elevator?
(A) Series
(B) Shunt
(C) Differentially compounded
(D) Cummulatively compounded
Answer ⇓
11. Which of the following DC motor can never be used for belt collected load?
(A) Series
(B) Shunt
(C) Cummuletively compounded
(D) Differentially compounded
Answer ⇓
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