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) Ml/Gd4 b) 584Ml/Gd4 c) 292 Ml/Gd4 d) None of the mentioned

Description : While designing shaft on the basis of torsional rigidity, angle of twist is given by? a) Ml/Gd4 b) 584Ml/Gd4 c) 292 Ml/Gd4 d) None of the mentioned

Last Answer : b) 584Ml/Gd4

While designing shaft on the basis of torsional rigidity, angle of twist is given by? a) Ml/Gd4 b) 584Ml/Gd4 c) 292 Ml/Gd4 d) None of the mentioned

Description : While designing shaft on the basis of torsional rigidity, angle of twist is given by? a) Ml/Gd4 b) 584Ml/Gd4 c) 292 Ml/Gd4 d) None of the mentioned

Last Answer : b) 584Ml/Gd4

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

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

Description : 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

Last Answer : (D) (Shaft diameter)4

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

Description : 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

Last Answer : (D) All of above conditions are satisfied

Deflection in a close coiled helical spring is (a) 16 WR3n/Gd4 (b) 32 WR3n/Gd4 (c) 64 WR3n/Gd4 (d) None

Description : Deflection in a close coiled helical spring is (a) 16 WR3n/Gd4 (b) 32 WR3n/Gd4 (c) 64 WR3n/Gd4 (d) None

Last Answer : (c) 64 WR3n/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

The helix angle in case of closely coiled helical spring is (A) less than 5° (B) 5° to 7° (C) 7° to 10° (D) more than 10°

Description : The helix angle in case of closely coiled helical spring is (A) less than 5° (B) 5° to 7° (C) 7° to 10° (D) more than 10°

Last Answer : (D) more than 10°

The helix angle in case of closely coiled helical spring is (A) less than 10° (B) 10° to 15° (C) 15° to 20° (D) more than 20°

Description : The helix angle in case of closely coiled helical spring is (A) less than 10° (B) 10° to 15° (C) 15° to 20° (D) more than 20°

Last Answer : (A) less than 10°

The helix angle is very small about 20. The spring is open coiled spring. a) Yes b) It is closed coiled spring c) That small angle isn’t possible d) None of the listed

Description : The helix angle is very small about 20. The spring is open coiled spring. a) Yes b) It is closed coiled spring c) That small angle isn’t possible d) None of the listed

Last Answer : b) It is closed coiled spring

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

Description : 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

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

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

Description : 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

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

Symbols for principal stresses are a. Firstly σ, τ & γ b. Secondly σ 1 , σ 2 & σ 3

Description : Symbols for principal stresses are a. Firstly σ, τ & γ b. Secondly σ 1 , σ 2 & σ 3

Last Answer : b. Secondly σ 1 , σ 2 & σ 3

The strain energy (E) stored in the spring is given by Where P=Load and δ = deflection of spring (A) Pδ/2 (B) 2Pδ (C) Pδ/3 (D) Pδ/4

Description : The strain energy (E) stored in the spring is given by Where P=Load and δ = deflection of spring (A) Pδ/2 (B) 2Pδ (C) Pδ/3 (D) Pδ/4

Last Answer : (A) Pδ/2

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 springs

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 springs

Last Answer : (D) Concentric springs

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

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

If number of coils are 8 and wire diameter of spring 3mm, then solid length is given by? a) None of the listed b) 27mm c) 24mm d) 21mm

Description : If number of coils are 8 and wire diameter of spring 3mm, then solid length is given by? a) None of the listed b) 27mm c) 24mm d) 21mm

Last Answer : c) 24mm

A transmission shaft is subjected to bending moment (Mb) and torsional moment (Mt). The equivalent bending moment is given by, (A) √(Mb + Mt) (B) √(Mb2 + Mt2) (C) Mb + Mt (D) Mb +√(Mb2 + Mt2)

Description : A transmission shaft is subjected to bending moment (Mb) and torsional moment (Mt). The equivalent bending moment is given by, (A) √(Mb + Mt) (B) √(Mb2 + Mt2) (C) Mb + Mt (D) Mb +√(Mb2 + Mt2)

Last Answer : (D) Mb +√(Mb2 + Mt2)

A transmission shaft is subjected to bending moment (Mb) and torsional moment (Mt). The equivalent torsional moment is given by, (A) √(Mb + Mt) (B) √(Mb2 + Mt2) (C) Mb + Mt (D) Mb +√(Mb2 + Mt2)

Description : A transmission shaft is subjected to bending moment (Mb) and torsional moment (Mt). The equivalent torsional moment is given by, (A) √(Mb + Mt) (B) √(Mb2 + Mt2) (C) Mb + Mt (D) Mb +√(Mb2 + Mt2)

Last Answer : (B) √(Mb2 + Mt2)

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

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.

Last Answer : b. Tl/GJ.

In a salient pole synchronous machine (usual symbols are used): (A) xq > xd (B) xq = xd (C) xq < xd (D) 0

Description : In a salient pole synchronous machine (usual symbols are used): (A) xq > xd (B) xq = xd (C) xq < xd (D) 0

Last Answer : Ans: C Since reluctance on the q axis is higher, owing to the larger air gap, hence xq < xd

Angle of rotation o arbour with respect to drum is given by? a) None of the listed b) 12ML/Ebtɜ c) 8 ML/Ebtɜ d) 16ML/Ebtɜ

Description : Angle of rotation o arbour with respect to drum is given by? a) None of the listed b) 12ML/Ebtɜ c) 8 ML/Ebtɜ d) 16ML/Ebtɜ

Last Answer : b) 12ML/Ebtɜ

Angle of obliquity is defined as a. Angle between the plane on which stresses are evaluated and one of the given planes b. Angle between resultant stress and the plane of given normal stress c. Angle between resultant stress and shear stress d. Angle between resultant stress and normal stress

Description : Angle of obliquity is defined as a. Angle between the plane on which stresses are evaluated and one of the given planes b. Angle between resultant stress and the plane of given normal stress c. Angle between resultant stress and shear stress d. Angle between resultant stress and normal stress

Last Answer : d. Angle between resultant stress and normal stress

Automatic wrist watches get energy from - (1) twist in spring (2) liquid crystal (3) kinetic energy (4) movement of our hands

Description : Automatic wrist watches get energy from - (1) twist in spring (2) liquid crystal (3) kinetic energy (4) movement of our hands

Last Answer : (1) twist in spring Explanation: An automatic watch is a watch that continues to operate due to the regular motion of the wearer's wrist.

What is the value of shear stress acting on a plane of circular bar which is subjected to axial tensile load of 100 kN? (Diamet a. 58.73 Mpa b. 40.23 Mpa c. 39.60 Mpa d. Insufficient data

Description : What is the value of shear stress acting on a plane of circular bar which is subjected to axial tensile load of 100 kN? (Diamet a. 58.73 Mpa b. 40.23 Mpa c. 39.60 Mpa d. Insufficient data

Last Answer : c. 39.60 Mpa

-The method used to induce a layer of residual compressive stress on the surface of the spring wire, is (A) shot peening (B) burnishing (C) lapping (D) none of the above

Description : -The method used to induce a layer of residual compressive stress on the surface of the spring wire, is (A) shot peening (B) burnishing (C) lapping (D) none of the above

Last Answer : (A) shot peening

A concentric spring consist of two helical compression springs (A) both springs always have right hand helix (B) both springs always have left hand helix (C) both springs always have opposite hand of helices (D) any of the above

Description : A concentric spring consist of two helical compression springs (A) both springs always have right hand helix (B) both springs always have left hand helix (C) both springs always have opposite hand of helices (D) any of the above

Last Answer : (C) both springs always have opposite hand of helices

The length of one coil in the spring is (A) πD (B) 2πD (C) πD/2 (D) πD/4

Description : The length of one coil in the spring is (A) πD (B) 2πD (C) πD/2 (D) πD/4

Last Answer : (A) πD

The coils of spring which are in contact with the seat and do not contribute to spring action are called (A) resting coils (B) static coils (C) inactive coils (D) ideal coils

Description : The coils of spring which are in contact with the seat and do not contribute to spring action are called (A) resting coils (B) static coils (C) inactive coils (D) ideal coils

Last Answer : (C) inactive coils

The force required to produce unit deflection is known as (A) gradient of spring (B) stiffness of the spring (C) spring constant (D) all of the above

Description : The force required to produce unit deflection is known as (A) gradient of spring (B) stiffness of the spring (C) spring constant (D) all of the above

Last Answer : (D) all of the above

Axial length of an unloaded helical compression spring is called (A) compressed length (B) solid length (C) free length (D) none of the above

Description : Axial length of an unloaded helical compression spring is called (A) compressed length (B) solid length (C) free length (D) none of the above

Last Answer : (C) free length

Axial length of the spring which is so compressed that the adjacent coils touch each other. (A) compressed length (B) solid length (C) free length (D) none of the above

Description : Axial length of the spring which is so compressed that the adjacent coils touch each other. (A) compressed length (B) solid length (C) free length (D) none of the above

Last Answer : (B) solid length

A spring index from ___ is considered as best for manufacturing considerations. (A) 4 to 12 (B) 12 to 20 (C) 20 to 28 (D) 28 to 36

Description : A spring index from ___ is considered as best for manufacturing considerations. (A) 4 to 12 (B) 12 to 20 (C) 20 to 28 (D) 28 to 36

Last Answer : (A) 4 to 12

The spring index indicates the relative sharpness of the ___ of the coil. (A) length (B) curvature (C) thickness (D) none of the above

Description : The spring index indicates the relative sharpness of the ___ of the coil. (A) length (B) curvature (C) thickness (D) none of the above

Last Answer : (B) curvature

The spring index (C) is (A) mean coil diameter / wire diameter (B) wire diameter / mean coil diameter (C) wire diameter x mean coil diameter (D) none of the above

Description : The spring index (C) is (A) mean coil diameter / wire diameter (B) wire diameter / mean coil diameter (C) wire diameter x mean coil diameter (D) none of the above

Last Answer : (A) mean coil diameter / wire diameter

The longest leaf in Semi-elliptic leaf spring is known as (A) chief leaf (B) master leaf (C) major leaf (D) higher leaf

Description : The longest leaf in Semi-elliptic leaf spring is known as (A) chief leaf (B) master leaf (C) major leaf (D) higher leaf

Last Answer : (B) master leaf

Helical torsion spring is used in (A) door hinges (B) door closers (C) automobile starters (D) all of the above

Description : Helical torsion spring is used in (A) door hinges (B) door closers (C) automobile starters (D) all of the above

Last Answer : (D) all of the above

Torsional shear stresses are induced in the spring wire when (A) spring is under compression (B) spring is under tension (C) both (A) and (B) (D) none of the above

Description : Torsional shear stresses are induced in the spring wire when (A) spring is under compression (B) spring is under tension (C) both (A) and (B) (D) none of the above

Last Answer : (C) both (A) and (B)

In compression springs, the external force tends to (A) shorten the spring (B) lengthen the spring (C) both (A) and (C) (D) keep the length same

Description : In compression springs, the external force tends to (A) shorten the spring (B) lengthen the spring (C) both (A) and (C) (D) keep the length same

Last Answer : (A) shorten the spring

In which of the following item(s), spring is used to store energy. (A) clocks (B) toys (C) circuit breakers (D) all of the above

Description : In which of the following item(s), spring is used to store energy. (A) clocks (B) toys (C) circuit breakers (D) all of the above

Last Answer : (D) all of the above

A spring is defined as a(an) ___ machine element. (A) plastic (B) elastic (C) special purpose (D) none of the above

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

The spring index is, (A) Ratio of wire diameter to mean coil diameter (B) Force per unit cross-sectional area of spring (C) Ratio of mean coil diameter to wire diameter (D) Force required to produce unit deflection

Description : The spring index is, (A) Ratio of wire diameter to mean coil diameter (B) Force per unit cross-sectional area of spring (C) Ratio of mean coil diameter to wire diameter (D) Force required to produce unit deflection

Last Answer : (C) Ratio of mean coil diameter to wire diameter

The type of spring used to absorb and release energy in mechanical watches is (A) Helical extension spring (B) Multi-leaf spring (C) Spiral spring (D) Helical torsion spring

Description : The type of spring used to absorb and release energy in mechanical watches is (A) Helical extension spring (B) Multi-leaf spring (C) Spiral spring (D) Helical torsion spring

Last Answer : (C) Spiral spring

The spring operates (A) Within plastic limit (B) Within elastic limit (C) Within elasto-plastic limit (D) Within visco-elastic limit

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

The type of spring used in vehicle clutches is, (A) Helical compression spring (B) Belleville spring (C) Both (A) and (B) (D) Helical torsion spring

Description : The type of spring used in vehicle clutches is, (A) Helical compression spring (B) Belleville spring (C) Both (A) and (B) (D) Helical torsion spring

Last Answer : (C) Both (A) and (B)

When the helical torsion spring is subjected to torque, the type of stress induced in the spring wire is, (A) Tensile stress (B) Compressive stress (C) Bending stress (D) Torsional shear stress

Description : When the helical torsion spring is subjected to torque, the type of stress induced in the spring wire is, (A) Tensile stress (B) Compressive stress (C) Bending stress (D) Torsional shear stress

Last Answer : (C) Bending stress