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
Description : The type of spring used in door hinges is, (A) Helical extension spring (B) Multi-leaf spring (C) Spiral spring (D) Helical torsion spring
Last Answer : (D) Helical torsion spring
Description : 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
Last Answer : (B) Multi-leaf 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 springs
Last Answer : (D) Concentric springs
Description : When the helical extension spring is subjected to axial tensile force, 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 : (D) Torsional shear stress
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
Last Answer : d) Leaf 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 : The type of spring used to achieve any linear or non-linear load-deflection characteristic is (A) Spiral spring (B) Non-ferrous spring (C) Belleville (coned disk) spring (D) Torsion spring
Last Answer : (C) Belleville (coned disk) 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)
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
Description : When the helical compression spring is subjected to axial compressive force, the type of stress induced in the spring wire is, (A) Tensile stress (B) Compressive stress (C) Bending stress (D) Torsional shear stress
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 : The strip of spiral spring is never subjected to pure bending moment. a) True b) False
Last Answer : b) False
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 : 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
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
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
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°
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°
Description : When a helical spring is cut into two halves, the stiffness of each half spring will be, (A) Same as original spring (B) Double of original spring (C) Half of original spring (D) One fourth of original spring
Last Answer : (B) Double of original spring
Description : For a helical torsion sprig, the stress concentration factor at outer fibre is? Give spring index=5. a) 0.78 b) 0.87 c) 1.87 d) 0.69
Last Answer : b) 0.87
Description : For a helical torsion sprig, the stress concentration factor at inner fibre is? Give spring index=5. a) 1.005 b) 1.175 c) 1.223 d) 1.545
Last Answer : b) 1.175
Description : The helical spring ad wire of helical torsion spring, both are subjected to torsional shear stresses. a) True b) False
Description : Pick up the correct statement from the following: (A) A wire wound in spiral form, is called a helical spring (B) The pitch of a close coil spring, is very small (C) The angle made by the coil with horizontal, is called the angle of helix (D) All the above
Last Answer : (D) All the above
Description : Multi-leaf springs are used in (A) automobile suspension (B) railroad suspension (C) both (A) and (B) (D) none of the above
Last Answer : (C) both (A) and (B)
Description : The leaves of multi-leaf springs are subjected to (A) bending stress (B) shear stress (C) axial stress (D) all of the above
Last Answer : (A) bending stress
Description : Multi leaf springs are not recommended for automobile and rail road suspensions. a) True b) False
Description : Period of simple harmonic motion of a spiral spring or elastic thread is given by A. T = 2π (extension produced/gravitational field strength) B. T = 2π (extension produced/√( ... (extension produced)/gravitational field strength) D. T = 2π √(extension produced/gravitational field strength)
Last Answer : T = 2π × √(extension produced/gravitational field strength)
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
Description : The longest leaf in a leaf spring is called centre leaf. a) It is called middle leaf b) It is called master leaf c) Yes d) None of the listed
Last Answer : b) It is called master leaf
Description : Which of the following function can the spring perform? a) Store energy b) Absorb shock c) Measure force d) All of the mentioned
Last Answer : d) All of the mentioned
Description : Wahl factor to account for direct shear stress and stress concentration due to curvature for helical springs is given by, (A) (4C - 1/4C - 4) + 0.615/C (B) (4C - 1/4C + 4) + 0.615/C (C) (4C + 1/4C - 4) + 0.615/C (D) (4C + 1/4C + 4) + 0.615/C
Last Answer : (A) (4C - 1/4C - 4) + 0.615/C
Description : The helix angle for double helical gears may be made up to (A) 45° (B) 60° (C) 75° (D) 90°
Last Answer : (A) 45°
Description : ears commonly used on fuel injection pumps are a. Spur gears b. helical gears c. rack and pinion d. spiral gears
Last Answer : c. rack and pinion
Description : Which one of the following types of bearings is employed in shafts of gearboxes of automobiles? [IES-1999] (a) Hydrodynamic journal bearings (b) Multi-lobed journal bearings (c) Antifriction bearings (d) Hybrid journal bearings
Last Answer : (c) Antifriction bearings
Description : The initial gap between the extra full-length leaf and the graduated-length leaf before the assembly, is called as (A) clearance (B) nip (C) gap
Last Answer : (B) nip
Description : Nipping is defined as leaving the gap between full length leaf and graduated length leaf. a) True b) False
Description : Nip is the initial gap between extra full length leaf and the graduated length leaf before the assembly. a) True b) False
Last Answer : a) True
Description : Multi-layer helical windings are commonly used in the transformers as high voltage windings (a) upto 20 kV (b) upto 50 kV (c) upto 80 kV (d) for 110 kV and above
Last Answer : (d) for 110 kV and above
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 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
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
Description : The length of one coil in the spring is (A) πD (B) 2πD (C) πD/2 (D) πD/4
Last Answer : (A) πD
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
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
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
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