Exam 3: Electrical Power and Energy

When using a PIRE wheel, you should select a formula in the quadrant of ____.

Which is not an example of a type of drive?

Efficiency is the ratio of the unused power output to the total power input.

Electrical energy is the product of power and time.

Heat energy can be measured in ____.

What is one possible downside of oversizing a motor?

How much power is dissipated by an electric oven if 30 A flows through a resistance of 10 ohms?

The ____ of a motor is the amount of torque developed at the instant the motor is energized.

Electrical power, in Watts, can be expressed as the product of current, in Amperes and electrical pressure, in Volts.

Energy loss means that energy is destroyed or consumed.

With which type of drive will the driven gear rotate in the opposite direction from the driving gear?

Work equals force times ____.

Power is a measurement of the rate of doing work.

A(n) ____connected in series with a motor will both limit and control the starting current.

With direct drive, the driving machine and the driven machine may be mounted on the same shaft, or a(n) ____ may be used.