Q. A jam nut is a locking device in which

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Q. The difference between the upper limit and lower limit of a dimension is called

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Q. The algebraic difference between the actual size and the corresponding basic size is called actual deviation.

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Q. The stiffness of a closely coiled helical spring subjected to an axial load W is equal to (where G = Modulus of rigidity, and n = Number of active coils)

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Q. The average shear stress in the hollow shaft is smaller than the average shear stress in the solid shaft.

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Q. The diameter of knuckle pin in a knuckle joint is usually taken as (where d = Diameter of the rod)

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Q. The design of shafts made of brittle materials is based on

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Q. A locking device extensively used in automobile industry is a

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Q. A key way lowers

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Q. A tapered key which fits in a key way in the hub and is flat on the shaft, is known as

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Q. The included angle for the V-belt is usually

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Q. In static loading, stress concentration is more serious in

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Q. The bending stress in a curved beam is

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Q. The piston pin bearings in heavy duty diesel engines are

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Q. Cast iron pipes are mainly used

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Q. In a multiple V-belt drive, if one of the belts break, then

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Q. The steel pulleys are __________ in weight than cast iron pulleys of the same capacity.

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Q. The parallel fillet welded joints are designed for compressive strength.

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Q. A column of length l is fixed at both ends. The equivalent length of the column is

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Q. A spring of stiffness 1000 N/m is streteched initially by 100 mm from the undeformed position. The work required to stretch it by another 100 mm is

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