Which one of these areas is the water jacket?

When installing conduit in reinforced concrete, it is best to use a(n) _____

a. standard device box b. utility box with a raised device cover c. concrete box with ears d. conduit body

The speed of the wound-rotor induction motor can be controlled by the amount of ____ connected in the rotor circuit.

A. capacitance B. voltage C. resistance D. inductance

Which of the following is one of the most common types of turbines?

A. Wind B. Steam C. Electric D. Hydraulic

Solve the quadratic equation:  x2- x = 3 (7 + x)

Fill in the blank(s) with the appropriate word(s).