Mechanical Engineering - Machine Design

6.
The toughness of a material __________ when it is heated.
increases
decreases
does not change
Answer: Option
Explanation:
No answer description is available. Let's discuss.

7.
The number of slots in a 25 mm castle nut is
2
4
6
8
Answer: Option
Explanation:
No answer description is available. Let's discuss.

8.
A screw is said to be over hauling screw, if its efficiency is
less than 50%
more than 50%
equal to 50%
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

9.
The application of third type levers is found in
handle of a hand pump
hand wheel of a punching press
lever of a loaded safety valve
a pair of tongs
Answer: Option
Explanation:
No answer description is available. Let's discuss.

10.
For unequal width of butt straps, the thickness of butt straps are
0.75 t for wide strap on the inside and 0.625 t for narrow strap on the outside
0.75 t for narrow strap on the inside and 0.625 t for wide strap on the outside
0.75 t for both the straps on the inside and outside
0.625 t for both the straps on the inside and outside
Answer: Option
Explanation:
No answer description is available. Let's discuss.