Explore topic-wise MCQs in Machine Design.

This section includes 104 Mcqs, each offering curated multiple-choice questions to sharpen your Machine Design knowledge and support exam preparation. Choose a topic below to get started.

101.

Torque to weight ratio for a circular shaft transmitting power is directly proportional to the

A. square root of the diameter
B. diameter
C. square of the diameter
D. cube of the diameter
Answer» C. square of the diameter
Discussion
102.

A ductile material having an endurance limit of 196 N/mm

A. 3.0
B. 1.5
C. 1.33
D. 4.0
Answer» C. 1.33
Discussion
103.

A solid shaft can resist a bending moment of 3.0 kNm and a twisting moment of 4.0 kNm together, then the maximum torque that can be applied is

A. 7.0 kNm
B. 3.5 kNm
C. 4.5 kNm
D. 5.0 kNm
Answer» E.
Discussion
104.

Two shafts A and B are made of the same material. The diameter of shaft B is twice that of shaft A The ratio of power which can be transmitted by shaft A to that of shaft B is

A. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td></tr><tr><td style="text-align: center;">2</td></tr></table>
B. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td></tr><tr><td style="text-align: center;">4</td></tr></table>
C. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td></tr><tr><td style="text-align: center;">8</td></tr></table>
D. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td></tr><tr><td style="text-align: center;">16</td></tr></table>
Answer» D. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td></tr><tr><td style="text-align: center;">16</td></tr></table>
Discussion