Q. When a machine member is subjected to torsion, the torsional shear stress set up in the member is

View solution

Q. If the centre distance of the mating gears having involute teeth is increased, then the pressure angle

View solution

Q. In cylindrical cams, the follower moves

View solution

Q. The included angle for the acme thread is 29°.

View solution

Q. The process extensively used for making bolts and nuts is

View solution

Q. In a transverse fillet welded joint, the size of weld is __________ the throat of weld.

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

Q. The antifriction bearings

View solution

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

View solution

Q. A shaft coupling should

View solution

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

View solution

Q. Shaft coupling is used in machinery to

View solution

Q. Oldham coupling is used to connect two shafts

View solution

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

View solution