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 the root circle to the profile of the tooth
A.Worm is driver
B.Worm wheel is driver
C.Either of the worm or worm wheel is a driver
D.Depends on other factors
E.None of the above
A.Zero
B.One
C.Two
D.Three
E.Four
A.Addendum + dedendum
B.Dedendum
C.Addendum
D.Addendum-clearance
E.Dedendum-clearance
A.there are 4 turning pairs
B.one is a turning pair and 3 sliding pairs
C.two turning pairs and two sliding pairs
D.None of the above
A.0?
B.90?
C.180?
D.270?
E.None of the above
A.Bevel gears
B.Hooke’s joint
C.Oldham’s coupling
D.None of the above
A.Spherical pairs
B.Turning pairs
C.Rolling pairs
D.Lower pairs
E.Higher pairs
A.The amplitude of vibration decreases with time
B.The amplitude of vibration does not change with time
C.Only transient increases indefinitely with time
D.The total energy in the system does not change with time
E.None of the above
A.The direction of relative velocity vector for the two coincidental points rotated by 90? in the direction of the angular velocity of the rotation of the link
B.The direction of relative velocity vector for the two coincidental points rotated by 180? in the direction of the angular velocity of the rotation of the link
C.The direction of relative velocity vector for the two coincidental points in the direction directly opposite to that of angular velocity
D.The direction at right angles to that of relative angular velocity vector
E.None of the above
