Q. The surface finish factor for a mirror polished material is

View solution

Q. For low and moderate speed engines, the cam follower should move with

View solution

Q. Which of the following statement is correct ?

View solution

Q. When a bolt and nut is made of mild steel, then the effective height of nut is made equal to (where d = Nominal diameter of bolt)

View solution

Q. When two helical springs of equal lengths are arranged to form a cluster spring, then

View solution

Q. For a shaft diameter of 200 mm, the number of bolts in a marine flange coupling should be

View solution

Q. The stress in the threaded part of the bolt will be __________ as compared to the shank.

View solution

Q. A shaft is a rotating machine element.

View solution

Q. The dedendum circle diameter is equal to (where φ = Pressure angle)

View solution

Q. The rivet head used for boiler plate riveting is usually

View solution

Q. A single strap butt joint is always in __________ shear.

View solution

Q. 18/8 steel contains

View solution

Q. The module in the reciprocal of diametral pitch.

View solution

Q. The velocity factor for carefully cut gears operating at velocities upto __________ is equal to 4.5/4.5 + v.

View solution

Q. Euler's formula for a mild steel column is not valid if the slenderness ratio is

View solution

Q. The standard length of the shaft is

View solution

Q. According to I.B.R., when the thickness of boiler shell (t) is greater than 8 mm, then the diameter of rivet hole (d) is obtained by

View solution

Q. When the shaft rotates in anticlockwise direction at slow speed in a bearing, it will

View solution

Q. A taper key which fits half in the key way of the hub and half in the key way of shaft, is known as

View solution

Q. A metal pipe of 1 m diameter contains a fluid having a pressure of 1 N/mm². If the permissible tensile stress in the metal is 20 N/mm², then the thickness of the metal required for making the pipe will be

View solution