Mechanical Engineering - Machine Design - Discussion

Discussion Forum : Machine Design - Section 1 (Q.No. 9)
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.
Discussion:
14 comments Page 2 of 2.

Soustabh said:   4 years ago
Tong is not Third class lever.

Madhu Palleti said:   3 years ago
Answer is Tong because if you take sugar tong the effort is applied at middle of load and fulcrum.

Whereas in loaded safety valve the applied at one end of the lever which is next to the load (Loaded with spring) and another end is pivoted. So safety valve comes under 2nd type lever.
(1)

Humayoun said:   3 years ago
Pair of tongs is of first type lever in which fulcrum is between load and effort.
(2)

Adesh said:   1 year ago
Thanks all for explaining the answer.


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