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 : 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 : Nipping is defined as leaving the gap between full length leaf and graduated length leaf. a) True b) False
Last Answer : b) False
Description : Bending stress in graduated length leaves are more than that in full length leaves. a) Yes b) No c) In some cases d) Can’t be stated
Last Answer : b) No
Description : Unnecessary and frequent applications of varnish to the generator windings to repair defective insulation will result in ____________. A. heavy coatings of varnish interfering with heat dissipation B. ... of the rectifier assembly D. a built-up of varnish without changing generator operation
Last Answer : Answer: A
Description : Half the angle of nip, (α), for a roll crusher is given by (where, dr, dp and df are diameters of crushing rolls, feed particles and rolls gap respectively). (A) cos α = (dr + dp)/(dr + df) (B) cos α = (dr + df)/(dr + dp) (C) tan α = (dr + dp)/(dr + df) (D) sin α = (dr + dp)/(dr + df)
Last Answer : (A) cos α = (dr + dp)/(dr + df)
Description : A full journal bearing having clearance to radius ratio of 1/100, using a lubricant with μ=28×10-3 Pa s supports the shaft journal running at N = 2400 rpm If bearing pressure is 1.4 MPa, the Somerfield number is [IES-2001] (a) 8×10-3 (b) 8×10-5 (c) 0.48 (d) 0.48×10
Last Answer : (a) S = (μN s /p) (r/c) 2
Description : Increase in values of which of the following results in an increase of the coefficient of friction in a hydrodynamic bearing? [IES 2007] 1. Viscosity of the oil. 2. Clearance between shaft and bearing. 3. Shaft speed. Select the ... 1 and 2 only (b) 1 and 3 only (c) 2 and 3 only (d) 1, 2 and 3
Last Answer : (b) 1 and 3 only
Description : For elasto-hydrodynamic lubrication (A) There should be relative motion between the surfaces of the journal and the bearing and wedge shaped clearance space (B) There should be external source like ... be elastic deformation of the parts in contact (D) There should be metal to metal contact
Last Answer : (C) There should be elastic deformation of the parts in contact
Description : For hydrostatic lubrication (A) There should be relative motion between the surfaces of the journal and the bearing and wedge shaped clearance space (B) There should be external source like pump to ... be elastic deformation of the parts in contact (D) There should be metal to metal contact
Last Answer : (B) There should be external source like pump to supply lubricant under pressure
Description : For hydrodynamic lubrication (A) There should be relative motion between the surfaces of the journal and the bearing and wedge shaped clearance space (B) There should be external source like pump to ... be elastic deformation of the parts in contact (D) There should be metal to metal contact
Last Answer : (A) There should be relative motion between the surfaces of the journal and the bearing and wedge shaped clearance space
Description : A clearance bearing is design accurately to keep the radius of journal and bearing equal. a) Journal radius is kept larger b) Journal radius is kept smaller c) True d) Can’t be determined
Last Answer : b) Journal radius is kept smaller
Description : Which of the following is not a function of washer? a) Distributes load over a large area of clamped parts b) Provides bearing surface over large clearance bolts c) Prevents marring of the bolt head and nut surface d) Helps in locking of the fastener
Last Answer : d) Helps in locking of the fastener
Description : Just graduated college and have some extra money to go on a trip. where should I go and why?
Last Answer : It’s such a generic answer but I would travel around Europe. I’d learn some new languages, see lots of famous monuments and museums, and see how a whole lot of other people live. And congrats on graduation!
Description : A rolling contact bearing is specified as X307. Determine the series. a) Extra light series b) Light series c) Medium series d) Heavy series
Last Answer : c) Medium series
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 : The antifriction bearings (a) have low starting and low running friction at moderate speeds (b) have a high initial cost (c) can carry both radial and thrust loads (d) all the mentioned
Last Answer : (d) all the mentioned
Description : The connecting rod bolts are tightened up so that the initial tightening stress (A) Approaches yield point (B) Approaches endurance limit (C) Approaches (yield point stress/factor of safety) (D) Approaches (endurance limit stress/factor of safety)
Last Answer : (A) Approaches yield point
Description : The connecting rod bolts are tightened up with the initial tension greater than external load so that (A) Failure of bolt will be static (B) The resultant load on bolt will not be affected by ... ) The bolt will not fail by fatigue although the external load is fluctuating (D) All the three
Last Answer : (D) All the three
Description : The resultant axial force on bolt depends upon (A) Initial tension (B) External applied load (C) Stiffness of bolt and parts held by bolt (D) All three factors
Last Answer : (D) All three factors
Description : In manual assembly, cost of screw is higher than the cost of driving a screw. a) True b) False
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 : 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 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 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 : 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 : Multi leaf springs are not recommended for automobile and rail road suspensions. a) True b) False
Description : Bending stress in graduated length leaves are more than that in full length leaves. (a) Yes (b) No (c) In some cases (d) Can’t be stated
Last Answer : (b) No
Description : Initial gap between two turns of a close coil helical tension spring should be a. 0.5 mm b. based on the maximum deflection c. 1 mm d. zero
Last Answer : d. zero
Description : A proton and an alpha particle pass through the gap of a strong magnet. If both particles have the same initial velocity, how many times greater will the defection of the proton be relative to the deflection of the alpha particle? Will it be: w) the same x) 2 times y) 4 times z) 8 times
Last Answer : ANSWER: X -- 2 TIMES
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 : If the spring is compressed completely and the adjacent coils touch each other,the the length of spring is called as? a) Solid length b) Compressed length c) Free length d) None of the mentioned
Last Answer : a) Solid length
Description : The length of each of the two equal sides of a parallel fillet weld is called a) Leg b) Throat c) Arm d) None of the listed
Last Answer : a) Leg
Description : What is Nip ?
Last Answer : Nip means to die.
Description : Where can you watch Nip/Tuck?
Last Answer : you can watch nip tuck season 7 here: http://free-movies-online-now.com
Description : The term 'angle of nip' is concerned with the operation of the __________ crushers. (A) Jaw (B) Roll (C) Gyratory (D) None of these
Last Answer : (B) Roll
Description : What is the usual value of angle of nip for crushing of ordinary rock in smooth steel crushing rolls? (A) 16° (B) 32° (C) 40° (D) 46°
Last Answer : (B) 32°
Description : The value of 'angle of nip' is generally about (A) 16° (B) 32° (C) 52° (D) 64
Last Answer : (B) 32
Description : Pick out the wrong statement. (A) Gape is the greatest distance between the crushing surfaces or the jaws (B) The angle of nip (2α) is the angle between roll faces at the level where they will ... Reduction ratio is the ratio of the maximum size of the particles in the feed to that in the product
Last Answer : (C) Crushing efficiency is the ratio of the energy absorbed by the solid to the surfaces energy created by crushing
Description : . Which of the following relationships between co-efficient of friction (μ) between rock & roll and a (half of the angle of nip) of the particle to be crushed is correct? (A) μ > tan α (B) μ ≥ tan α (C) μ > tan 2α (D) μ ≤ tan α
Last Answer : (B) μ ≥ tan α
Description : Angle of nip of the crushing rolls does not depend upon the (A) Diameter of the rolls (B) Speed of the rolls (C) Product size (D) Feed size
Last Answer : (B) Speed of the rolls
Description : Needles bearing consist of rollers of small diameter and very small length. (a) True (b) False
Last Answer : (b) False
Description : The bearing characteristic number in a hydrodynamic bearing depends on- (a) Length, width and load (b) length, width and speed. [IES-1996] (c) Viscosity, speed and load (d) viscosity, speed and bearing pressure.
Last Answer : (d) viscosity, speed and bearing pressure.
Description : The length to diameter ratio for a square bearing is (A) More than 1 (B) Less than 1 (C) 8 (D) 1
Last Answer : (D) 1
Description : The length to diameter ratio for a short bearing is (A) More than 1 (B) Less than 1 (C) 8
Last Answer : (B) Less than 1
Description : Needles bearing consist of rollers of small diameter and very small length. a) True b) False