A.Belts should touch the bottom of groove in pulley
B.Belts should not touch the bottom of groove in pulley
C.Grooves in pulley are generally wider than the belt
D.The efficiency of transmission is less
E.Tension in belt remains constant throughout
A.Cylindrical pair
B.Sliding pair
C.Rolling pair
D.Turning pair
E.Spherical pair
A.Dead weight of the engine
B.Fish plates of the tails
C.Inside section of the rails
D.Side pressure between the flanges of the wheels
E.(C) and (D) together
A.Half the primary critical speed
B.Twice the primary critical speed
C.Four times the primary critical speed
D.Occurs only when there are more than 2 rotors on a shaft
E.If the externam exciting system has a frequency other than the primary critical speed
A.All the belts have to be replaced
B.Broken belt may be replaced by the similar etc
C.Broken belt and at least one adjacent belt should be replaced
D.Broken belt and at least two adjacent belt should be replaced
E.None of the above
A.Circular pitch
B.Diametral pitch
C.Module
D.Any of the above
E.None of the above
A.Velocity polygon
B.Acceleration polygon
C.Four bar chain mechanism
D.Slider crank mechanism
E.Angular accelerations
A.The primary and secondary forces have same direction
B.The primary and secondary forces have same amplitude
C.The ratio of magnitude of primary forces of secondary forces is 2
D.The primary force has twoce the frequency of secondary force
A.For any gear having teeth anywhere between 42 to 54
B.For only 42 teeth gear
C.For only 54 teeth gear
D.For only 48 teeth gear
A.The part of the tooth surface lying below the pitch surface
B.The curve forming face and flank
C.The width of the gear tooth measured axially along the pitch surface
D.The surface of the top of the tooth
E.Radius that connects in the root circle to the profile of the tooth
