Coil springs absorb shocks by (A) bending (B) twisting (C) compression (D) tension

Coil springs absorb shocks by
(A) bending
(B) twisting
(C) compression
(D) tension
by

1 Answer

Answer :

(C) compression
by

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When a shaft is subjected to a twisting moment, every cross-section of the shaft will be under (a) Tensile stress (b) Compressive stress (c) Shear stress (d) All of these

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Strength of a shaft a. Is equal to maximum shear stress in the shaft at the time of elastic failure b. Is equal to maximum shear stress in the shaft at the time of rupture c. Is equal to torsional rigidity d. Is ability to resist maximum twisting moment

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Which of the following is not an assumption in derivation of torsion equation? a. Circular shaft remains circular after twisting b. Plane section of the shaft remain plane after twisting c. Material of shaft is isotropic d. Angle of twist is proportional to radius

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The type of spring used to absorb shocks and vibrations in vehicles is, (A) Helical extension spring (B) Multi-leaf spring (C) Spiral spring (D) Belleville (coned disk) spring

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------------ are called cantilever laminated springs (a) Semi-elliptical springs (b) quarter elliptical springs (c) both (a) and (b) (d) none (Ans: b)

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The type of spring used to achieve greater load carrying capacity within given space is (a)spiral spring (b) springs in series (c)multi-leaf spring (d) concentric spring

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Laminated springs are used in (a) Watches (b) Sofas (c) Motorcycles (d) None

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A concentric spring consists of 2 sprigs of diameter 10mm and 4mm. The net force acting on the composite spring is 5000N. Find the force acting on each of the two springs. (a) 1232.2N and 3767.8N (b) 786.4N and 4213.6N (c) 689.7N and 4310.3N (d) 645.3N and 4354.7N

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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

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The laminated springs are given initial curvature (a) To have uniform strength (b) To make it more economical (c) So that plates may become flat, when subjected to design load (d) None of these

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