Knife switches rated more than ____, and at over 1000 amperes at 251 to 1000 volts, shall be used only as isolating switches and shall not be opened under load.

A. 1000 amperes at 250 volts or less
B. 1100 amperes at 200 volts or less
C. 1200 amperes at 250 volts or less
D. 1200 amperes at 200 volts or less


Answer: C

Trades & Technology

You might also like to view...

Referring to the figure, the twelfth bite of ice cream achieves the greatest amount of satisfaction

Indicate whether the statement is true or false.

Trades & Technology

Hot-iron branding is used less now than in the past

Indicate whether the statement is true or false

Trades & Technology

Discuss the reasons that close contact with exotic animals could potentially cause disease in humans

What will be an ideal response?

Trades & Technology

Technician A says that engine torque is transmitted through the surface of the hollow driveshaft from the transmission to the rear differential in a RWD vehicle. Technician B says that a bent driveshaft on a RWD vehicle can cause a condition known as torque steer. Which technician is correct?

A) Technician A only B) Technician B only C) Both technicians D) Neither technician

Trades & Technology