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Mechanical Engineering MCQ’s

May 4, 2020 by admin

1. A universal joint is an example of
(A) higher pair
(B) lower pair
(C) rolling pair
(D) sliding pair

Answer ⇓

           B 


2. What is the function of cone pulley drive in lathe machines?
(A) Drive the lead screw
(B) Change the spindle speed
(C) Drive the tail-stock
(D) All of the above

Answer ⇓

           B 

3. Guest’s theory of failure is applicable for following type of materials
(A) ductile
(B) elastic
(C) plastic
(D) tough.

Answer ⇓

           A 

4. Pulley in a belt drive acts as
(A) cylindrical pair
(B) turning pair
(C) rolling pair
(D) sliding pair

Answer ⇓

           C 


5. Which of the following is a power transmitting element?

(A) Nuts and bolts
(B) Sprockets and chains
(C) Axles
(D) All of the above

Answer ⇓

           B 


6. Which type of bearings are known as anti friction bearings?
(A) Sliding contact bearings
(B) Rolling contact bearings
(C) Both a. and b.
(D) None of the above

Answer ⇓

           B 

7. Casting of a centrifugal pump is designed so as to minimize
(A) friction loss
(B) starting time.
(C) static head
(D) loss of kinetic energy

Answer ⇓

           D 

8. The Scott-Russell mechanism consists of sliding and turning pairs
(A) sliding and rotary pairs
(B) turning and rotary pairs
(C) sliding pairs only
(D) turning pairs only.

Answer ⇓

           A 


9. Which of the following is a machine shaft?

(A) Line shaft
(B) Counter shaft
(C) Crankshaft
(D) All of the above

Answer ⇓

           C 


10. What is the percentage of carbon in plain carbon steel?

(A) 60 to 80%
(B) Less than 1.7%
(C) Less than 7%
(D) None of the above

Answer ⇓

           B 

Also Read :

  • Why all the voltage levels are multiples of 11 kV? asked by Bahu
  • What is the function of a choke in tube light? asked by varu
  • What is the difference between Earthing and Grounding? asked by admin
  • How can we change the direction of a DC motor? asked by Heena


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