Multiple Choice Question (MCQ)
Question: What is the use of ratchet stop in out side micro meter?
A.
Prevent load
B.
Prevent speed
C.
Prevent excessive pressure
D.
Prevent sliding
Correct Answer: Prevent excessive pressure
Explanation
The SI unit of electric current is the ampere, which is the flow of electric charge across a surface at the rate of one coulomb per second. The ampere (symbol: A) is an SI base unit Electric current is measured using a device called an ammeter.