A.Maximum value of frictional force when a body is about to move
B.Friction between two well lubricated bodies
C.Friction force acting when the body is in motion
D.Driction force which keeps a body in motion
E.None of the above
A.Automobiles
B.Small engines
C.When driver and driven units are far off
D.Heavy duty machines
E.None of the above
A.tangential to the friction circles at the ends
B.along the friction axis
C.inclined to axis of link by an angle ?, known as angle of friction
D.All the above
A.Secondary critical speed effect
B.Primary critical speed effect
C.Unbalanced parts of fan
D.Aerodynamic unbalance
E.Vibration in air
A.Is the same as that of velocity
B.Is opposite to the velocity
C.Could be either the same or opposite to velocity
D.Is always in a plane perpendicular to the plane of motion
E.None of the above
A.Bush bearing
B.Sleeve bearing
C.Ball bearing
D.Roller bearing
E.Needle roller bearing
A.Only one pair turning and three paris sliding
B.Only two pairs turning and low pairs sliding
C.Only three pairs turning and one pair sliding
D.All four pairs turning
E.All four pairs sliding
A.to lower the bow and raise the stern
B.to raise the bow and lower then stern
C.to roll the ship slightly clockwise when viewed fro bow end
D.None of the above
A.The angle between the line of action and the common tangent to the pitch surface in the plane of rotation
B.The angle between the normal to the point of contact and the shaft axis
C.The angle between the normal to dedendum at the path point and tangent to the dedendum at the path point and tangent to the dedendum at the same point
D.The angle of obliquity between the tangent drawn at the point of contact of the two mating gears
E.None of the above
A.Unbalanced parts of the primary forces acting at a distance between the line of stroke of the cylinders
B.Unbalanced part of the secondary forces acting at a distance between the line of stroke of the cylinders
C.Vertical unbalanced primary forces acting in the plane of the wheels
D.Vertical unbalanced primary forces acting in the plane of the wheels
E.Horizontal unbalanced primary forces acting in the plane of the wheel
