Description : Multi leaf springs are not recommended for automobile and rail road suspensions. a) True b) False
Last Answer : b) False
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 : 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 : Cocentric springs are used in (A) Heavy duty diesel engines (B) aircraft engines (C) railroad suspensions (D) all of the above
Last Answer : (D) all of the above
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 to measure weights in spring balance is, (A) Helical extension spring (B) Multi-leaf spring (C) Spiral spring
Last Answer : (A) Helical extension 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 spring
Last Answer : (d) concentric spring
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 : 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
Description : The joints between link of a suspension bridge, which of the following joints used.. A. Cotter joint B. Knuckle joint C. Universal coupling D. Bolted joint
Last Answer : B. Knuckle joint
Description : Factor of safety in the design of springs is usually (A) 1.5 or less (B) 3 or less (C) 4.5 or less (D) 6 or less
Last Answer : (A) 1.5 or less
Description : For two springs in parallel, effective stiffness (k) is Where k 1 & k 2 are stiffness of springs 1 & 2 respectively (A) k 1 k 2 / (k 1 + k 2 ) (B) k 1 + k 2 (C) k 1 k 2 (D) (k 1 + k 2 ) / k 1 k 2
Last Answer : (B) k 1 + k 2
Description : For two springs in series, effective stiffness (k) is Where k 1 & k 2 are stiffness of springs 1 & 2 respectively (A) k 1 k 2 / (k 1 + k 2 ) (B) k 1 + k 2 (C) k 1 k 2 (D) (k 1 + k 2 ) / k 1 k 2
Last Answer : (A) k 1 k 2 / (k 1 + k 2 )
Description : Two springs of stiffness k1 and k2 are connected in series, the combined (A) k1k2/k1 + k2 (B) k1k2/k1 - k2 (C) k1 + k2 (D) k1 + k2/k1k2
Last Answer : (A) k1k2/k1 + k2
Description : When two concentric springs are made of same material, having same free length and compressed equally by axial load, then the load shared by each spring is proportional to (A) Spring index of each spring ... spring (C) Mean coil diameter of each spring (D) Square of wire diameter of each spring
Last Answer : (D) Square of wire diameter of each spring
Description : Concentric springs are used, (A) To achieve greater load carrying capacity with given space (B) To achieve fail-safe system (C) To eliminate surge (D) Any of the above objectives
Last Answer : (D) Any of the above objectives
Description : Two springs of stiffness k1 and k2 are connected in parallel, the combined stiffness of the connection is given by, (A) k1k2/k1 + k2 (B) k1k2/k1 - k2 (C) k1 + k2 (D) k1 + k2/k1k2
Last Answer : (C) k1 + k2
Description : Springs are used, (A) To absorb shocks and vibrations (B) To store and release energy (C) To measure force (D) For any of the above functions
Last Answer : (D) For any of the above functions
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 : 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
Last Answer : b) Double force
Description : Can concentric springs be used to obtain a force which is not proportional to its deflection? a) True b) False
Last Answer : a) True
Description : In concentric springs, vibrations called surge are amplified. a) True b) False
Description : For two springs connected in parallel, net force is equal to the sum of force in each spring. a) True b) False
Description : For two springs connected in series, the net deflection is equal to the sum of deflection in two springs. a) True b) False
Description : Martin’s factor compensates for curvature effect in springs. a) True b) False
Description : Helical torsion spring is used in (A) door hinges (B) door closers (C) automobile starters (D) all of the above
Description : Which type of welding is generally used in automobile sector? a) Electric arc welding b) Electric resistance welding c) Gas welding d) Forge welding
Last Answer : b) Electric resistance welding
Description : Splines are commonly used in (A) Machine tool gear box (B) Automobile gear box (C) Hoist and crane gear box (D) Bicycle
Last Answer : (B) Automobile gear box
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 : An automobile weighing 2800 lb and travelling at 30 miles/hr, hits a depression in the road which has a radius of curvature of 50 ft. What is the total force to which springs are subjected. a.8230 lb b.6170 lb c.2800 ib d.107 dynes e.3280 lb
Last Answer : b. 6170 lb
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 : 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 : 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
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 : 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 : How do I add leaf springs to my van?
Last Answer : If your van already has leaf springs then get the correct replacements from dealer or auto parts store. You will need some helpers, and jacks and maybe special tools, there is some danger ... springs or helper springs you probably need to discuss with mechanic for proper brackets and mounting
Description : Silico-manganese steels (containing 0.7% Mn, 0.5% C and 2% Si) (A) Do not require heat treatment for any of its applications (B) Are used for leaf and coiled springs (C) Do not have good resilience properties (D) Is tempered at 850°C
Last Answer : (B) Are used for leaf and coiled springs
Description : In leaf springs the longest leaf is known as (a) Lower leaf (b) Master leaf (c) Upper leaf (d) None of these
Last Answer : (b) Master leaf
Description : The following is a type of leaf springs (a) three Quarter elliptic (b) semi elliptic (c) quarter elliptic (d) all of the above
Last Answer : (d) all of the above
Description : Leaf springs absorb shocks by (a) bending (b) twisting (c) compression (d) tension
Last Answer : a) bending
Description : Leaf springs use (a) All full length leaves (b) All leaves of different lengths (c) Few full length leaves with truncated leaves (d) None
Last Answer : (c) Few full length leaves with truncated leaves
Description : Leaf springs are used in (a) Scooters (b) Bikes (c) Trucks (d) None
Last Answer : (c) Trucks
Description : If the load on the engine is constant, the mean speed will be constant from the cycle, then (A) The governor will not operate but flywheel will be acting (B) The flywheel will be acting but ... (C) Both flywheel and governor will be acting (D) Both flywheel and governor will not be acting
Last Answer : (A) The governor will not operate but flywheel will be acting
Description : Which of the following doesn’t waste energy? a) Flywheel b) Governor c) Both flywheel and governor d) Neither flywheel nor governor
Last Answer : a) Flywheel
Description : If load on the engine is constant, the mean speed will be constant and ___ will not operate. a) Flywheel b) Governor c) Both flywheel and governor d) None of the mentioned
Last Answer : b) Governor
Description : When comes down to stress reduction, which one is preferred? a) Solid flywheel b) Split flywheel c) Both have equal stresses d) Cannot be determined
Last Answer : b) Split flywheel
Description : Tapered roller bearings can take (a) radial load only (b) axial load only (c) both radial and axial loads and the ratio of these being greater than unity (d) both radial and axial loads and the ratio of these being less than unity
Last Answer : (c) both radial and axial loads and the ratio of these being greater than unity