The angle of twist for the equivalent bar to a spring is given by? (Symbols have their usual meaning) a) 8PD²N/Gd⁴ b) 16PD²N/Gd⁴ c) 16PDN/Gdᵌ d) 8PDN/Gdᵌ

The angle of twist for the equivalent bar to a spring is given by? (Symbols have their usual  meaning)
a) 8PD²N/Gd⁴
b) 16PD²N/Gd⁴
c) 16PDN/Gdᵌ
d) 8PDN/Gdᵌ
by

1 Answer

Answer :

b) 16PD²N/Gd⁴
by

Related questions

The angle of twist for the equivalent bar to a spring is given by? (Symbols have their usual meaning) a) 8PD2N/Gd4 b) 16PD2N/Gd4 c) 16PDN/Gdɜ d) 8PDN/Gdɜ

Description : The angle of twist for the equivalent bar to a spring is given by? (Symbols have their usual meaning) a) 8PD2N/Gd4 b) 16PD2N/Gd4 c) 16PDN/Gdɜ d) 8PDN/Gdɜ

Last Answer : b) 16PD2N/Gd4

The axial deflection of spring for the small angle of θ is given by? a) 328PDᵌN/Gd⁴ b) 8PDᵌN/Gd⁴ c) 16PDᵌN/Gd⁴ d) 8PD²N/Gdᵌ

Description : The axial deflection of spring for the small angle of θ is given by? a) 328PDᵌN/Gd⁴ b) 8PDᵌN/Gd⁴ c) 16PDᵌN/Gd⁴ d) 8PD²N/Gdᵌ

Last Answer : b) 8PDᵌN/Gd⁴

While designing shaft on the basis of torsional rigidity, angle of twist is given by? a) 100Ml/Gd⁴ b) 584Ml/Gd⁴ c) 292 Ml/Gd⁴ d) 300 Ml/Gd⁴

Description : While designing shaft on the basis of torsional rigidity, angle of twist is given by? a) 100Ml/Gd⁴ b) 584Ml/Gd⁴ c) 292 Ml/Gd⁴ d) 300 Ml/Gd⁴

Last Answer : b) 584Ml/Gd⁴

A shaft of length L is subject to a constant twisting moment T along its length L, then angle q through which one end of the bar will twist relative to other will be (a) T/g (b) T/GJ (c) GJ/TL (d) TL/GJ

Description : A shaft of length L is subject to a constant twisting moment T along its length L, then angle q through which one end of the bar will twist relative to other will be (a) T/g (b) T/GJ (c) GJ/TL (d) TL/GJ

Last Answer : (d) TL/GJ

Longitudinal stress in a cylinder is given by [symbols have their usual meanings]. a) PD/2t b) 2PD/t c) PD/4t d) 4PD/t

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Last Answer : c) PD/4t

Tangential stress in a cylinder is given by [symbols have their usual meanings]. a) PD/2t b) 2PD/t c) PD/4t d) 4PD/t

Description : Tangential stress in a cylinder is given by [symbols have their usual meanings]. a) PD/2t b) 2PD/t c) PD/4t d) 4PD/t

Last Answer : a) PD/2t

Angle of twist of a circular shaft is given by a. GJ/Tl b. Tl/GJ. c. TJ/Gl. d.TG/Jl.

Description : Angle of twist of a circular shaft is given by a. GJ/Tl b. Tl/GJ. c. TJ/Gl. d.TG/Jl.

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The angle of twist for a transmission shaft is inversely proportional to (a) shaft diameter (b) (shaft diameter)2 (c) (shaft diameter)3 (d) (shaft diameter)4

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The shafts will have same strength on the basis of torsional rigidity, if (a) diameter and length of both shafts is same (b) material of both shafts is same (c) angle of twist for both shafts is same (d) all of above conditions are satisfied

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Last Answer : (d) all of above conditions are satisfied

Calculate the shaft diameter on rigidity basis if torsional moment is 196000N-mm, length of shaft is 1000mm. Permissible angle of twist per meter is 0.5’ and take G=79300N/mm². a) None of the listed b) 41.2mm c) 35.8mm d) 38.8mm

Description : Calculate the shaft diameter on rigidity basis if torsional moment is 196000N-mm, length of shaft is 1000mm. Permissible angle of twist per meter is 0.5’ and take G=79300N/mm². a) None of the listed b) 41.2mm c) 35.8mm d) 38.8mm

Last Answer : b) 41.2mm

Two shafts will have equal strength, if (a) diameter of both the shafts is same (b) angle of twist of both the shafts is same (c) material of both the shafts is same (d) twisting moment of both the shafts is same

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A hollow shaft of 1 m length is designed to transmit a power of 30 kW at 700 rpm. The maximum permissible angle of twist in the shaft is 1o. The inner diameter of the shaft is 0.7 times the outer diameter. The modulus of rigidity is 80 GPa. The outside diameter (in mm) of the shaft is _______. (a) 43 to 45 (b) 50to 60 (c) 70 to 80 (d) 85 to 100

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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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Two shafts in torsion will have equal strength if a. Only diameter of the shafts is same b. Only angle of twist of the shaft is same c. Only material of the shaft is same d. Only torque transmitting capacity of the shaft is same

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Last Answer : d. Only torque transmitting capacity of the shaft is same

The angle of twist is ------------- proportional to the twisting moment. a. directly. b. inversely. c. indirectly. d. reversely.

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Last Answer : a. directly.

For two shafts joined in parallel, the --------------- in each shaft is same. a. shear stress. b. Angle of twist c. torque d. torsional stress.

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For two shafts joined in series, the --------------- in each shaft is same. a. shear stress. b. Angle of twist c. torque d. torsional stress.

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Ratio of diameters of two shafts joined in series is 2. If the two shafts have the same material and the same length the ratio of their angles of twist is a. 2 b. 4 c. 8 d. 16

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A helical spring of constant k is cut into four equal pieces and the four pieces are then combined in parallel. The equivalent spring constant will be (a) k/16 (b) k/4 (c) 4k (d) 16k

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Axle is frequently used in -----------------transmission. a) torque b) twist c) force d) direct

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A circular shaft subjected to torsion undergoes a twist of 10in a length of 120 cm. If the maximum shear stress induced is limited to 1000 kg/cm2and if modulus of rigidity G = 0.8 x 106then the radius of the shaft should be (a) p/8 (b) p/27 (c) 18/p (d) 27/p

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Which of the following assumptions are made in torsion theory? a. Shaft is perfectly straight b. Material of the shaft is heterogeneous c. Twist cannot be uniform along the length of the shaft d. Shaft is perfectly curve

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If in a bar after twisting moment T has been applied, a line on surface is moved by an angle g then shearing moment will be (a) t/g (b) g (c) g/t (d) none of these

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Elongation of a bar of uniform cross section of length ‘L’, due to its own weight ‘W’ is given by a. 2WL/E b. WL/E c. WL/2E d. WL/3E Where, E=Young’s modulus of elasticity of material

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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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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

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Maximum deflection in a leaf spring is given by (a) 3WL3/4Enbt3 (b) 3WL3/8Enbt3 (c) 3WL3/16Enbt3 (d) None

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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

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Equivalent torque in combined bending and torsion is given by a. Te = (M^2 + T^2)^1/2 b. Te = ½(M^2 + T^2)^1/2 c. Te = M + T d. Te = 1/2 [M+(M^2 + T^2)^1/2]

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In a triangle, ABC, if `cos A + cos B + 4 cos C=4," then find the value of "(a+b)/(c).` [Note : All symbols used have their usual meaning in triangle

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The material used for making torsion bar is (a) Steel (b) Cast iron (c) High carbon steel (d) All of the above

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When a bar is subjected to increase in temperature and its deformation is prevented, the stress induced in the bar is (a) Tensile (b) Compressive (c) Shear (d) None of the above

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The total extension in a bar, consists of 3 bars of same material, of varying sections is a. P/E(L1/A1+L2/A2+L3/A3) b. P/E(L1A1+L2A2+L3A3) c. PE(L1/A1+L2/A2+L3/A3) d. PE(L1/A1+L2/A2+L3/A3)

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Last Answer : a. P/E(L1/A1+L2/A2+L3/A3)

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

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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

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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 shackled and the rear end is pin joined (c) both end of the spring are shackled (d) both end of the spring are pin joined

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

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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

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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

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

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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

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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

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The weight or pressure required to deflect a spring in mm is called the spring (a) Weight (b) deflection (c) rate (d) rebound

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There are number of laminations in a (a) Close coiled spring (b) Open coiled spring (c) Spiral spring (d) None

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

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

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

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Spiral spring is quite rigid. (a) Yes (b) No it is flexible (c) It is of moderate rigidity (d) Rigidity can’t be determined

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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

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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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Last Answer : (c) 689.7N and 4310.3N

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

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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

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Last Answer : (b) 4674.1N