The process which improves the machinability of steels, but lowers the hardness and tensile strength is Process annealing Full annealing Normalising Spheroidising TRUE ANSWER : ? YOUR ANSWER : ?
A sliding bearing in which although lubricant is present, the working surfaces __________ contact each other at least part of the time, is called boundary lubricated bearing. Partially Fully Either A or B None of these TRUE ANSWER : ? YOUR ANSWER : ?
The rolling contact bearings as compared to sliding contact bearings have Low starting and low running friction except at very high speeds Small overall dimensions Accuracy of shaft alignment All of these TRUE ANSWER : ? YOUR ANSWER : ?
According to Indian standard specifications, 100 H6/g5 means that Tolerance grade for the shaft is 6 and for the hole is 5 Tolerance grade for the hole is 6 and for the shaft is 5 Tolerance grade for the shaft is 4 to 8 and for the hole is 3 to 7 Tolerance grade for the hole is 4 to 8 and for the shaft is 3 to 7 TRUE ANSWER : ? YOUR ANSWER : ?
A tapered key which fits in a key way in the hub and the bottom of which is shaped to fit the curved surface of the shaft, is known as, Hollow saddle key None of these Soft key Hollow key TRUE ANSWER : ? YOUR ANSWER : ?
In levers, leverage is the ratio of Mechanical advantage to the velocity ratio Load arm to the effort arm Effort arm to the load arm Load lifted to the effort applied TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following screw thread is adopted for power transmission in either direction? Multiple threads Buttress threads Acme threads Square threads TRUE ANSWER : ? YOUR ANSWER : ?
A self locking screw has Coefficient of friction is greater than tangent of load angle Course threads Fine threads Hole for inserting split pin TRUE ANSWER : ? YOUR ANSWER : ?
A V-belt designated as B 4430 LP has 4430 mm as nominal pitch length 4430 mm as diameter of small pulley 4430 mm as diameter of large pulley 4430 mm as centre distance between pulleys TRUE ANSWER : ? YOUR ANSWER : ?
The ratio of pitch circle diameter in millimeters to the number of teeth, is called Diametral pitch Module Circular pitch None of these TRUE ANSWER : ? YOUR ANSWER : ?