Machine Design Questions

• In radial cams, the follower moves
• When screw threads are to be used in a situation where power is being transmitted in one direction only, then the screw threads suitable for this will be
• When a bolt is subjected to shock loading, the resilience of the bolt should be considered in order to prevent breakage at the
• In unilateral system of tolerance, the tolerance is allowed on
• In a hydrodynamic lubricated bearing
• Stress concentration is caused due to
• In second type of levers,
• 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)
• A plate with an elliptical hole in the centre, with semi-major axis (a) perpendicular to the direction of loading and semi-minor axis (b) along the direction of loading, is subjected to a pull P. The maximum stress induced at the edge of the hole is equal to (where σ = Stress for a plate with no hole i.e. nominal stress)
• The velocity of sliding __________ the distance of the point of contact from the pitch point.
• The square threads are not so strong as V-threads but they offer less frictional resistance to motion than Whitworth threads.
• The pipe joint mostly used for pipes carrying water at low pressures is
• A column is known as a long column if the slenderness ratio is
• The resistance to fatigue of a material is measured by
• The value of stress concentration factor depends upon
• For unequal width of butt straps, the thickness of butt straps are
• According to I.B.R., shearing resistance required to shear off the rivet per pitch length (in double shear) is (where n = Number of rivets per pitch length)
• Which of the following statement is correct for gears?
• Slenderness ratio is the ratio of
• Screws used for power transmission should have