The contact ratio is the ratio of Length of path of contact to the circular pitch Length of arc of recess to the circular pitch Length of arc of approach to the circular pitch Length of arc of contact to the circular pitch TRUE ANSWER : ? YOUR ANSWER : ?
The shearing stresses in the inner face as compared to outer face of the wire in a heavy close coiled spring is Larger/smaller depending on diameter of spring coil Larger Equal Smaller TRUE ANSWER : ? YOUR ANSWER : ?
The maximum bending stress in a curved beam having symmetrical section always occur at the Inside fiber Neutral axis Centroidal axis Outside fiber TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is not correct procedure to increase the fatigue limit? Under stressing Surface decarburisation Shot peening Cold working 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 W/9 8W/9 W/2 2W/3 TRUE ANSWER : ? YOUR ANSWER : ?
A locking device in which the bottom cylindrical portion is recessed to receive the tip of the locking set screw, is called Sawn nut Jam nut Ring nut Castle nut TRUE ANSWER : ? YOUR ANSWER : ?
The endurance limit for a mirror polished material will be __________ as compared to unpolished material. Same None of these More Less TRUE ANSWER : ? YOUR ANSWER : ?
The algebraic difference between the maximum limit and the basic size is called Lower deviation Upper deviation Mean deviation Actual deviation TRUE ANSWER : ? YOUR ANSWER : ?
The anti-friction bearings Have high initial cost Can carry both radial and thrust loads Have low starting and low running friction at moderate speeds All of these TRUE ANSWER : ? YOUR ANSWER : ?
The resilience of a bolt may be increased by Decreasing its length Decreasing its shank diameter Increasing its shank diameter Increasing its length TRUE ANSWER : ? YOUR ANSWER : ?