Read More- Welding Types and Definitions Notes
1. When bevel gears connect two shafts whose axes intersect at an angle greater than a right angle and one of the bevel gears has a pitch angle of 90°, then they are known as-
A. internal bevel gears
B. crown bevel gears
C. mitre gears
D. angular bevel gears
View Answer/Explanation
Correct Answer is B
2. Screws used for power transmission should have-
A. Low efficiency
B. strong efficiency
C. high efficiency
D. very fine threads
View Answer/Explanation
Correct Answer is C
3. To ensure self-locking in a screw jack it is must that helix angle-
A. equal to the friction angle
B. larger than the friction angle
C. smaller than the friction angle
D. such as to give maximum efficiency in lifting
View Answer/Explanation
Correct Answer is C
4. In the assembly design of shaft, pulley, and key, the weakest member is-
A. Key
B. Pulley
C. Shaft
D. None of these
View Answer/Explanation
Correct Answer is A
5. The creep in the belt drive is due to-
A. material of the pulleys
B. material of the belt
C. unequal size of the pulleys
D. unequal tension on tight and slack sides of the belt
View Answer/Explanation
Correct Answer is B