Description : Spring is an (a) Elastic device (b) Plastic device (c) Elastic as well as plastic device (d) None
Last Answer : (a) Elastic device
Description : The limit beyond which the material does not behave elastically is known as (a) Proportional limit (b) Elastic limit (c) Plastic limit (d) Yield Point
Last Answer : (b) Elastic limit
Description : The statement : stress is proportional to strain, i.e. the Hooke’s law holds good upto (a) Elastic Limit (b) Proportional Limit (c) Plastic Limit (d) Yield point
Last Answer : (b) Proportional Limit
Description : Every material obeys the Hooke’s law within (a) Elastic limit (b) Plastic limit (c) Limit of proportionality (d) None of these
Last Answer : c) Limit of proportionality
Description : A brittle material has (a) No elastic zone (b) No plastic zone (c) Large plastic zone (d) None of these
Last Answer : 2
Description : The stress at which extension of a material takes place more quickly as compared to increase in load, is called (a) No elastic zone (b) Plastic point (c) Yield point (d) Breaking point
Last Answer : (c) Yield point
Description : Hooke’s law is applicable within (a)Elastic limit (b)Plastic limit (c)Fracture point (d) Ultimate strength
Last Answer : (a)Elastic limit
Description : The most important property for the spring material is (a) High elastic limit (b) High deflection value (c) Resistance to fatigue and shock (d) All of these
Last Answer : (d) All of these
Description : The device that permits variation in the distance between the spring eyes of a leaf spring as the spring flexes is called (a) Spring shackle (b) spring U bolt (c) spring hanger (d) spring leaf
Last Answer : (a) Spring shackle
Description : 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
Last Answer : (b) Linear as well as non linear
Description : 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
Last Answer : d. Is ability to resist maximum twisting moment
Description : In a simple bending theory, one of the assumption is that the material of the beam is isotropic. This assumption means that the a. normal stress remains constant in all directions b. ... c. elastic constants are same in all the directions d. elastic constants varies linearly in the material
Last Answer : c. elastic constants are same in all the directions
Description : 48. A perfectly elastic body (a) Can move freely (b) Has perfectly smooth surface (c) Is not deformed by any external surface (d) Recovers its original size and shape when the deforming force is removed.
Last Answer : d) Recovers its original size and shape when the deforming force is removed.
Description : Which of the following material is more elastic? (a) Rubber (b) Glass (c) Steel (d) Wood
Last Answer : (c) Steel
Description : A spring is defined as a(an) ___ machine element. (A) plastic (B) elastic (C) special purpose (D) none of the above
Last Answer : (B) elastic
Description : The spring operates (A) Within plastic limit (B) Within elastic limit (C) Within elasto-plastic limit (D) Within visco-elastic limit
Last Answer : (B) Within elastic limit
Description : At fully plastic twisting moment (a) only fibres at surface are stressed to yield point in shear (b) fibres at centre are stressed to yield point in shear (c) all fibres are stressed to yield point in shear (d) none of these
Last Answer : (c) all fibres are stressed to yield point in shear
Description : In case of a laminated spring, the load at which the plates become straight is called (a) working load (b) safe load (c) proof load (d) none
Last Answer : (c) proof load
Description : The type of spring used to achieve any linear and non-linear load-deflection characteristics is (a)spiral spring (b) non-ferrous spring (c)Belleville spring (d) torsion spring
Last Answer : (c)Belleville spring
Description : 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
Last Answer : (d) concentric spring
Description : With a leaf spring type of suspension, interference between steering and suspension system can be (a) front end of the spring is pin joined and the rear end is shackled (b) front end of the spring is ... joined (c) both end of the spring are shackled (d) both end of the spring are pin joined
Last Answer : (b) front end of the spring is shackled and the rear end is pin joined
Description : The clips placed at intervals along some leaf spring to prevent spring leaf separation on rebound are (a) rebound clips (b) separation clips (c) interval clips (d)relief clips
Last Answer : (a) rebound clips
Description : The laminated spring which is in common use, is of the type (a) full elliptic (b) semi elliptic (c)one quarter elliptic (d)three quarter elliptic
Last Answer : (b) semi elliptic
Description : Leaf spring for vehicles are nipped to (a) To vary the effective length of the spring (b) to increase the interleaf friction (c) Improve the load carrying capacity of spring (d) ensure that all leaves are uniformly stressed during loading
Last Answer : (d) ensure that all leaves are uniformly stressed during loading
Description : The weight or pressure required to deflect a spring in mm is called the spring (a) Weight (b) deflection (c) rate (d) rebound
Last Answer : c) rate
Description : There are number of laminations in a (a) Close coiled spring (b) Open coiled spring (c) Spiral spring (d) None
Last Answer : (d) None
Description : Most important features of any spring are (a) Deflection, stiffness and strength (b) Stiffness, bending and shear strengths (c) Strain energy, deflection and strength (d) None
Last Answer : (c) Strain energy, deflection and strength
Description : Spiral spring is quite rigid. (a) Yes (b) No it is flexible (c) It is of moderate rigidity (d) Rigidity can’t be determined
Last Answer : (b) No it is flexible
Description : What will happen if stresses induced due to surge in the spring exceeds the endurance limit stress of the spring. (a) Fatigue Failure (b) Fracture (c) None of the listed (d) Nipping
Last Answer : (a) Fatigue Failure
Description : 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
Last Answer : (c) 689.7N and 4310.3N
Description : 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
Last Answer : (b) 6M²L/Ebtᵌ
Description : 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 ... close the nip. (a) 4332.2N (b) 4674.1N (c) 4985.4N (d) Can't be determined
Last Answer : (b) 4674.1N
Description : 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 ... /mm², calculate the initial nip. (a) 26.8mm (b) 24.9mm (c) 22.5mm (d)23.1mm
Last Answer : b) 24.9mm
Description : Spring shackles are used to join (a) chassis frame and spring (b) Spring and Axle (c) chassis frame and axle (d) all of the above
Last Answer : (a) chassis frame and spring
Description : Shackles are sort of (a) coupling (b) link (c) spring (d) none of the above
Last Answer : (b) link
Description : The spring used in mechanical toys is (a) Leaf spring (b) Spiral spring (c) Helical spring (d) All of these
Last Answer : (b) Spiral spring
Description : A spring used to absorb shocks and vibrations is (a) Close-coil helical spring (b) Open coiled helical spring (c) Spiral spring (d) Leaf spring
Last Answer : (d) Leaf spring
Description : In a watch, the spring is used to store energy. The energy is released (a) To stop the watch (b) To run the watch (c) To change the time (d) All of these (
Last Answer : (b) To run the watch
Description : In spring balances, the spring is used (a) To apply forces (b) To absorb shocks (c) To store strain energy (d) To measure forces
Last Answer : (d) To measure forces
Description : The load required to produce a unit deflection in the spring is called (a) Modulus of Rigidity (b) Spring stiffness (c) Flexural rigidity (d) Tensional rigidity
Last Answer : b) Spring stiffness
Description : Deflection in a spring should be (a) Large (b) Small (c) Zero (d) None
Last Answer : (a) Large
Description : Strain energy in a spring should be (a) Large (b) Small (c) Zero (d) None
Description : Strain energy in a leaf spring is (a) W x δ (b) W x δ/3 (c) W x δ/2 (d) None
Last Answer : (c) W x δ/2
Description : Overlap in a leaf spring is (a) L/n (b) L/2n (c) L/3n (d) None
Last Answer : (b) L/2n
Description : Maximum deflection in a leaf spring is given by (a) 3WL3/4Enbt3 (b) 3WL3/8Enbt3 (c) 3WL3/16Enbt3 (d) None
Last Answer : (b) 3WL3/8Enbt3
Description : Maximum bending stress in a leaf spring is (a) 3WL/4nbt2(b) 3WL/8nbt2(c) 3WL/2nbt2(d) None
Last Answer : (c) 3WL/2nbt2
Description : A spring of stiffness 100 N/mm used in a spring-loaded safety valve of diameter 20 mm on a boiler with the pressure inside the boiler equal to 1 MPa should be initially compressed by a. 5mm b. 3.14 mm c. 2mm d. 6.28 mm
Last Answer : b. 3.14 mm
Description : The type of stress induced in a closed coiled helical tension spring is a. tensile b. compressive c. torsional shear d. tensile and compressive
Last Answer : c. torsional shear
Description : A spring with 25 active coils cannot be accommodated within a given space. Hence 5 coils of the spring are cut. The stiffness of the new spring will be a. the same b. 1.25 times the original spring c. 0.8 times the original spring d. 20 times the original spring
Last Answer : b. 1.25 times the original spring