Top 550+ Solved Machine Design MCQ Questions Answer
Q. A stud is
a. Screw with cylindrical head
b. Headless scew
c. Screw with circular heads
d. Oval heads screw
e. Screw with long threads
Q. Which of the following is a positive clutch?
a. Increasing the diameter of threaded portion
b. Band cluch
c. Jaw clutch
d. Disc clutch
Q. In case of spur gears the higher pressure angle results in
a. Wider base and stronger teeth
b. Weaker teeth
c. Narrow base and weaker teeth
d. Non-uniform motion transmission
e. Begger size of gear
Q. The pitch circle of a cam is
a. The smallest circle drawn to the pitch curve
b. Thesmallest circle drawn to the cam profile from the centre of rotation of a radial cam
c. The circle fitting in the cam profile
d. The circle with centre as the centre of cam axis and radius such that it passes through the point
e. None of the above
Q. If during operation of a boiler one of the riveted joints is found leaking
a. The boiler is stopped immediately
b. All the riveted joints are reopened and gain riveted
c. Depending upon the zone of boiler in which the joint leaks, decision is taken
d. The joint is repaired if in low pressure zones otherwise boiler sent for repairs
e. None of the above
Q. When a nut is tightened by placing a washer below it, the bolt will be subjected to
a. Tension
b. Torque
c. Compression
d. BI-axial stress
e. Shear
Q. In case of Vee belt
a. The belt should not touch the bottom of groove in the pulley
b. The belt should touch the bottom of groove in the fulley
c. The efficiency of transmission is less
d. Grooves in the pulley are generally wider than the belt
e. Tension in belt remains constant throughout
Q. Which of the following is not the advantage of V-belts over flat belts?
a. Less shock load absorption
b. Less axial space requirement
c. Increasing the diameter of threaded portion
d. Less slippage
e. Less noisy
Q. The curve traced by a point on a line as the line rolls on another curve is known as
a. Cycloid
b. Involute
c. Hypocycloid
d. Hyperbola
e. Epicycloid
Q. The differential equation 10x + 200 x + 810x = 0 describes one degree of freedom system. The system is
a. Oscillatory
b. Having critical damping
c. Having more than critical damping
d. Having less than critical damping
e. None of the above
Q. A column has its equivalent length equal to its length in case of
a. one end fixed, other free
b. both end fixed
c. one end hinged and one fixed
d. both ends hinged
e. Increasing the diameter of threaded portion