Which of the following are functions of bearings?
Explanation: Bearings are used for all the above listed purposes.
A radial bearing supports the load that acts along the axis of the shaft.
Explanation: Radial bearing supports the load acting perpendicular to the axis of the shaft.
A_______ bearing supports the load acting along the axis of the shaft.
Explanation: Thrust bearing supports load acting along axis of shaft.
Sliding contact bearings, also called plain bearings have no problem of wear.
Explanation: Surface of shaft slide over surface of the bush resulting in friction and wear.
In steam and gas turbines, rolling contact bearings are used.
Explanation: Sliding contact bearings are generally used.
Which of the following are true about plasticity?
Explanation: This is the basic definition of plasticity.
Which of the following is measure of stiffness?
Explanation: Stiffness is the ability of material to resist deformation under external load. Hence it is measured by modulus of elasticity.
Which of the following facts are true for resilience?
Explanation: Toughness is ability to store energy till proportional limit during deformation and to release this energy when unloaded.
Modulus of resilience is defined as
Explanation: Modulus of resilience is strain energy per unit volume.
In gear boxes and small size motors, rolling contact bearings are used.
Explanation: In small size applications, rolling contact bearings are preferred.