Q. According to Guest's theory, the failure occurs at a point in a member when the maximum shear stress in a bi-axial stress system reaches the shear stress at elastic limit in simple tension test.

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Q. Surface endurance limit of gear material is dependent upon its

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Q. In radial cams, the follower moves

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Q. The square threads are not so strong as V-threads but they offer less frictional resistance to motion than Whitworth threads.

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Q. According to Unwin's formula, the relation between the diameter of rivet hole (d) and the thickness of plate (t) is given by (where d and t are in mm)

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Q. In order to avoid tearing of the plate at an edge, the distance from the centre line of the rivet hole to the nearest edge of the plate should be equal to (where d = Diameter of rivet hole)

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Q. The value of stress concentration factor depends upon

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Q. The sleeve or muff coupling is designed as a

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Q. A sliding bearing in which the working surfaces are completely separated from each other by lubricant is called zero film bearing.

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Q. Screws used for power transmission should have

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Q. The number of rivets in shear shall be equal to the number of rivets in crushing.

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Q. When bevel gears connect two shafts whose axes intersect at an angle greater than a right angle and one of the bevel gears has a pitch angle of 90°, then they are known as

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Q. The toughness of a material __________ when it is heated.

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Q. The number of slots in a 25 mm castle nut is

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Q. A screw is said to be over hauling screw, if its efficiency is

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Q. The application of third type levers is found in

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Q. For unequal width of butt straps, the thickness of butt straps are

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Q. A locking device in which the bottom cylindrical portion is recessed to receive the tip of the locking set screw, is called

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Q. Slenderness ratio is the ratio of

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Q. A crankshaft is a __________ shaft.

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