Q. In the levers of first type, the mechanical advantage is __________ one.

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Q. The load placed at the top of the screw in a mechanical screw jack is prevented from rotation by providing a swivelling mechanism.

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Q. The usual proportion for the width of key is (where d = Diameter of shaft or diameter of hole in the hub)

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Q. The shear stress at a point in a shaft subjected to a torque is

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Q. Two concentric helical springs used to provide greater spring force are wound is opposite direction.

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Q. Two rigid plates are clamped by means of bolt and nut with an initial force F. After tightening, a separating force P (P < F) is applied to the lower plate, which in turn acts on the nut. The tension in the both after this is

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Q. The bearings of medium series have capacity __________ over the light series.

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Q. The antifriction bearings

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Q. In a partial journal bearing, the angle of contact of the bearing with the journal is

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Q. A shaft coupling should

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

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Q. Shaft coupling is used in machinery to

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Q. Oldham coupling is used to connect two shafts

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Q. The ends of the leaves of a semi-elliptical leaf spring are made triangular in order to

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Q. The face of the tooth is the

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Q. In case of pressure vessels having open ends, the fluid pressure induces

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Q. The set screws are used to prevent relative motion between the two parts.

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Q. The face angle of a bevel gear is equal to

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Q. Two shafts will have equal strength, if

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Q. The size of a cam depends upon

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