Surface endurance limit of gear material is dependent upon its Toughness Elastic strength Yield strength Brinell hardness number TRUE ANSWER : ? YOUR ANSWER : ?
The ball bearings are provided with a cage To reduce friction To maintain the balls at a fixed distance apart To prevent the lubricant from flowing out To facilitate slipping of balls TRUE ANSWER : ? YOUR ANSWER : ?
If threads on a bolt are left hand, threads on nut will be Right hand with fine pitch Right hand with same pitch Could be left or right hand Left hand with same pitch TRUE ANSWER : ? YOUR ANSWER : ?
The wear load should be __________ the dynamic load. Equal to Less than Greater than None of these TRUE ANSWER : ? YOUR ANSWER : ?
A key capable of tilting in a recess milled out in a shaft is known as Feather key Flat saddle key Hollow saddle key Woodruff key TRUE ANSWER : ? YOUR ANSWER : ?
The groove angle of the pulley for rope drive is usually 45° 20° 60° 35° TRUE ANSWER : ? YOUR ANSWER : ?
The resistance to fatigue of a material is measured by Young's modulus Endurance limit Elastic limit Ultimate tensile strength TRUE ANSWER : ? YOUR ANSWER : ?
Two helical springs of the same material and of equal circular cross-section, length and number of turns, but having radii 80 mm and 40 mm, kept concentrically (smaller radius spring within the larger radius spring), are compressed between two parallel planes with a load W. The inner spring will carry a load equal to 2W/3 W/2 W/9 8W/9 TRUE ANSWER : ? YOUR ANSWER : ?
A flange coupling is used to connect two shafts Which are not in exact alignment Have lateral misalignment Which are perfectly aligned Whose axes intersect at a small angle TRUE ANSWER : ? YOUR ANSWER : ?
In the levers of first type, the mechanical advantage is ________ one. Less than None of these More than Equal to TRUE ANSWER : ? YOUR ANSWER : ?