Explore topic-wise MCQs in Machine Design.

This section includes 16 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.

The strain energy stored in a spiral spring is given by?

A. 12M²L/Ebtᵌ
B. 6M²L/Ebtᵌ
C. 8M²L/Ebtᵌ
D. None of the listed
Answer» C. 8M²L/Ebtᵌ
Discussion
2.

Propagation of fatigue failure is always due to compressive stresses.

A. Due to bending
B. Due to tensile
C. Due to fatigue
D. None of the listed
Answer» C. Due to fatigue
Discussion
3.

When two Belleville springs are in parallel, half force is obtained for a given deflection.

A. Half force
B. Double force
C. Same force
D. Can’t be determined
Answer» C. Same force
Discussion
4.

When two Belleville sprigs are arranged in series, half deflection is obtained for same force.

A. One fourth deflection
B. Double deflection
C. Four time deflection
D. None of the listed
Answer» C. Four time deflection
Discussion
5.

A leaf spring consists of 3 extra full length leaves and 14 graduated length leaves. The maximum force that can act on the spring is 70kN and the distance between eyes of the spring is 1.2m. Width and thickness of the leaves are 100mm and 12mm respectively. If modulus of elasticity is 207000N/mm², calculate the initial nip.

A. 26.8mm
B. 24.9mm
C. 22.5mm
D. 23.1mm
Answer» C. 22.5mm
Discussion
6.

WHEN_TWO_BELLEVILLE_SPRINGS_ARE_IN_PARALLEL,_HALF_FORCE_IS_OBTAINED_FOR_A_GIVEN_DEFLECTION.?$

A. Half force
B. Double force
C. Same force
D. Can’t be determined
Answer» C. Same force
Discussion
7.

The strain energy stored in a spiral spring is given by?$

A. 12M²L/Ebtᵌ
B. 6M²L/Ebtᵌ
C. 8M²L/Ebtᵌ
D. None of the listed
Answer» C. 8M¬¨¬®‚Äö√¢¬ßL/Ebt¬¨‚à묨¬µ‚àö‚Ä¢
Discussion
8.

Propagation_of_fatigue_failure_is_always_due_to_compressive_stresses.$

A. Due to bending
B. Due to tensile
C. Due to fatigue
D. None of the listed
Answer» C. Due to fatigue
Discussion
9.

When two Belleville sprigs are arranged in series, half deflection is obtained for same force?

A. One fourth deflection
B. Double deflection
C. Four time deflection
D. None of the listed
Answer» C. Four time deflection
Discussion
10.

Belleville spring can only produce linear load deflection characteristics.

A. Only linear
B. Linear as well as non linear
C. Non-linear
D. None of the mentioned
Answer» C. Non-linear
Discussion
11.

Belleville spring can be used in clutch application.

A. True
B. False
Answer» B. False
Discussion
12.

A leaf spring consists of 3 extra full length leaves and 14 graduated length leaves. The maximum force that can act on the spring is 70kN and the distance between eyes of the spring is 1.2m. Width and thickness of the leaves are 100mm and 12mm respectively. Calculate the initial pre load required to close the nip.

A. 4332.2N
B. 4674.1N
C. 4985.4N
D. Can’t be determined
Answer» C. 4985.4N
Discussion
13.

A leaf spring consists of 3 extra full length leaves and 14 graduated length leaves. The maximum force that can act on the spring is 70kN and the distance between eyes of the spring is 1.2m. Width and thickness of the leaves are 100mm and 12mm respectively. If modulus of elasticity is 207000N/mm², calculate the initial nip.$

A. 26.8mm
B. 24.9mm
C. 22.5mm
D. 23.1mm
Answer» C. 22.5mm
Discussion
14.

Nipping is defined as leaving the gap between full length leaf and graduated length leaf.

A. True
B. False
Answer» C.
Discussion
15.

Nip is the initial gap between extra full length leaf and the graduated length leaf before the assembly.

A. True
B. False
Answer» B. False
Discussion
16.

Bending stress in graduated length leaves are more than that in full length leaves.

A. Yes
B. No
C. In some cases
D. Can’t be stated
Answer» C. In some cases
Discussion