Multiple Choice Questions (MCQ) on Machine Design

Multiple Choice Questions (MCQ) on Machine Design

1-Following is the correct order for design of machine elements.

(A) Specify functions of element – Determine forces acting on element – select suitable material for element – determine failure mode of element

(B) Specify functions of element – select suitable material for element – Determine forces acting on element – determine failure mode of element

(C) Specify functions of element – Determine forces acting on element– determine failure mode of element – select suitable material for element

(D) Specify functions of element – determine failure mode of element – Determine forces acting on element – select suitable material for element

 

2-____ is used to transmit the torque between the shaft and the adjoining machine part like gear, pulley or sprocket.

(A) Bearing

(B) Key

(C) Power screw

(D) Any of the above

 

3-____ is used to support the rotating shaft and confine its motion.

(A) Bearing

(B) Key

(C) Power screw

(D) Any of the above

 

4-Which of the following factor(s) is (are) considered for selecting a material.

(A) Availability

(B) Mechanical properties

(C) Cost

(D) all of the above

 

5-Transmission shafts are made up of

(A) Cast iron

(B) Plain carbon steel

(C) Low carbon steel

(D) Nickel chromium steel

 

6-Flywheel and engine block is made up of

(A) Cast iron

(B) Plain carbon steel

(C) Low carbon steel

(D) Nickel chromium steel

 

7-The crank shaft and connecting rods are made up of

(A) Cast iron

(B) Plain carbon steel

(C) Low carbon steel

(D) Nickel chromium steel

 

8-Components made of brittle materials fails because of

(A) Sudden fracture

(B) Yielding

(C) Elastic deflection

(D) All of the above

 

9-The following item(s) is (are) produced by the craft evolution process.

(A) Rowing boat

(B) Musical instruments

(C) Bullock cart

(D) All of the above

 

10-The main objective of design synthesis is

(A) Maximization

(B) Minimization

(C) Optimization

(D) None of the above

 

ANSWERS:

1-(A), 2-(B), 3-(A), 4-(D), 5-(B), 6-(A), 7-(D), 8-(A), 9-(D), 10-(C)