Factor of safety is the ratio of the ___________________ stress to the working stress?

Question: A friction lighter is normally used for lighting gas welding torch, because of the reason that
[A].

its initial cost is very low.

[B].

duration of spark created is very small.

[C].

safety of welder is ensured.

[D].

it is easier to operate & maintain.

Answer: Option C

Explanation:

No answer description available for this question.

Question: Floating control action
[A].

moves the final control element at constant speed in either direction in response to an error signal.

[B].

changes the position of the final control element from on to off.

[C].

is used to counteract rapid load changes.

[D].

none of these.

Answer: Option A

Explanation:

No answer description available for this question.