Question

obviously, the military, aerospace and nuclear power facilities will test the calibration of their torque wrenches more often than a backyard mechanic, but generally speaking it is good practice to have electronic torque wrenches calibrated _____________.
o quarterly
o only when problems are suspected
o yearly
o monthly

Explanation:

Electronic torque wrenches should be calibrated regularly for accuracy. Quarterly calibration is a common - good practice to maintain their precision, as waiting until problems are suspected may lead to inaccurate work. Yearly is too long an interval and monthly may be excessive for most general uses.

Answer:

A. quarterly