Explore topic-wise MCQs in Machine Design.

This section includes 17 Mcqs, each offering curated multiple-choice questions to sharpen your Machine Design knowledge and support exam preparation. Choose a topic below to get started.

1.

Keyed joints never lead to stress concentration on shafts.

A. True
B. False
Answer» C.
Discussion
2.

Feather key can be used to prevent axial motion between two elements.

A. True
B. False
Answer» C.
Discussion
3.

Calculate the net energy output from the flywheel.

A. 1300mm²
B. 1400mm²
C. 1250mm²
D. 1500mm²
Answer» D. 1500mm²
Discussion
4.

Calculate the energy at point C if energy at point A is U.

A. U-550
B. None of the listed
C. U+550
D. U+550
Answer» D. U+550
Discussion
5.

Calculate the energy at point B if energy assumed at point A is U.

A. U
B. U-300
C. U+300
D. U-150
Answer» C. U+300
Discussion
6.

Torque vs. theta graph of a flywheel is shown. Coefficient of fluctuation of speed is 0.2 and the mean angular velocity of the machine is 25 rad/s. Thickness of flywheel is 20mm and density of steel used is 7700kg/mᵌ. Calculate the outer radius of the flywheel.

A. 402mm
B. 202mm
C. 540mm
D. 468mmView Answer
Answer» B. 202mm
Discussion
7.

Calculate the coefficient of steadiness if maximum speed of flywheel is 2500rpm and minimum speed is 1800rpm.a) 3.03b) 0.33c) 0.44d) 3.99 Answer the questions 3-7 with respect to figure1.3. Calculate the mean torque T supplied by motor (Torque vs. theta graph of a flywheel is shown above).

A. 3.03b) 0.33c) 0.44d) 3.99 Answer the questions 3-7 with respect to figure1.3. Calculate the mean torque T supplied by motor (Torque vs. theta graph of a flywheel is shown above).a) 3000N-m
B. 0.33c) 0.44d) 3.99 Answer the questions 3-7 with respect to figure1.3. Calculate the mean torque T supplied by motor (Torque vs. theta graph of a flywheel is shown above).a) 3000N-mb) 1500N-m
C. 0.44d) 3.99 Answer the questions 3-7 with respect to figure1.3. Calculate the mean torque T supplied by motor (Torque vs. theta graph of a flywheel is shown above).a) 3000N-mb) 1500N-mc) 2000N-m
D. 3.99 Answer the questions 3-7 with respect to figure1.3. Calculate the mean torque T supplied by motor (Torque vs. theta graph of a flywheel is shown abov
E. .a) 3000N-mb) 1500N-mc) 2000N-md) 2500N-mView Answer
Answer» B. 0.33c) 0.44d) 3.99 Answer the questions 3-7 with respect to figure1.3. Calculate the mean torque T supplied by motor (Torque vs. theta graph of a flywheel is shown above).a) 3000N-mb) 1500N-m
Discussion
8.

Calculate the energy at point C if energy at point A is U.$

A. U-550
B. None of the listed
C. U+550
D. U+550
Answer» D. U+550
Discussion
9.

Calculate the energy at point B if energy assumed at point A is U.$

A. U
B. U-300
C. U+300
D. U-150
Answer» C. U+300
Discussion
10.

Calculate the point of minimum energy.

A. U+480
B. U+650
C. U-300
D. U-450
Answer» C. U-300
Discussion
11.

Calculate the maximum energy.

A. U+1000
B. U+950
C. U+630
D. U+600
Answer» C. U+630
Discussion
12.

Calculate the energy at point F if energy at A is u.

A. U+340
B. U+260
C. U+400
D. Can’t be determined
Answer» D. Can‚Äö√Ñ√∂‚àö√ë‚àö¬•t be determined
Discussion
13.

Calculate the energy output from flywheel.

A. 500π
B. 150π
C. 200π
D. 250π
Answer» B. 150‚âà√¨‚àö√ë
Discussion
14.

The point where velocity of flywheel is maximum is

A. A
B. B
C. C
D. D
Answer» E.
Discussion
15.

The point where angular velocity is maximum is?

A. A
B. B
C. C
D. D
Answer» C. C
Discussion
16.

Calculate the coefficient of steadiness if maximum speed of flywheel is 2500rpm and minimum speed is 1800rpm.

A. 3.03
B. 0.33
C. 0.44
D. 3.99
Answer» B. 0.33
Discussion
17.

Calculate the coefficient of fluctuation of speed if maximum speed is 2500rpm and minimum speed is 1800rpm.

A. 1.44
B. 1.33
C. 0.33
D. 0.44
Answer» D. 0.44
Discussion