Nominal top width of a B type V-belt is
A.13 mm
B.17 mm
C.22 mm
D.32 mm
E.31 mm
Category: Theory of Machines Mcqs
In a well greased ball bearing the coefficient of friction may be in the range
A.0.1 to 0.25
B.0.25 to 0.45
C.0.45 to 0.60
D.0.60 to 0.70
E.0.70 to 0.80
In a cam and follower mechanism, for the uniform velocity of the followers the displacement curve will have
A.No slope
B.Constant slope
C.Slope in positive direction only
D.Slope in both positive and negative direction
E.None of the above
Which of the following are not standard forms for spur-gears?
A.14
B.14
C.20? full depth involute system
D.20? stub-tooth involute system
E.All above
Which of the following is a dead weight governor?
A.Porter governer
B.Hartness governer
C.Watt governor
D.None of the above
Which of the following oil has highest specific gravity?
A.Petrol
B.Diesel
C.Turpentine
D.Castor oil
E.Sperm
If a machine uses four V belts, while purchasing care should be taken to ensure that
A.All belts are same section
B.All belts are of same size
C.All belts are of same manufacturers
D.All belts are of same batch number
E.All above
A slider crank chain consists of
A.One turning and one sliding pair
B.Two turning and one sliding pair
C.One turning and two sliding pairs
D.Two turning and two aliding pairs
E.Three turning and one sliding pairs
The effect of creep in case of cross belt drive is
A.to increase power transmission
B.to increase the speed of driven pulley
C.to reduce the speed of driven pulley
D.None of the above
Klein’s construction can be used when
A.Crank has a uniform angular velocity
B.Crank has a uniform angular acceleration
C.Crank has a non-uniform angular velocity
D.(A) and (B) above
E.(A) and (C) above
