ESCO ELECTRICAL EXAM Part 3

1. Which terminals have the highest resistance in an operating single phase compressor?

• C-S

• C-R

• R-S

• P-P

1. The thermal overload contacts on a line starter are manually reset after

• 1. it has Started

• 1. it has trip.

• 1. it has Turn off

1. When the temperature of a Negative Temperature Coefficient (NTC) thermistor increases

• 1. the resistance decreases

• 1. the resistance Increases

• 1. the resistance stays the same

1. The impedance symbols 

• Z

• Y

• W

• V

1. Capacitors start, capacitor run (CSCR) motor are 

• 1. high starting and running torque.

• 1. Low and running torque.

• 1. Meduim and running torque.

1. The three-phase motor has three windings that are equal in 

• Voltage

• 1. resistance

• Amps

1. The primary use of circuit brakers and fuses is to protect 

• 1. the circuit from overload of current.

• 1. the fuse from overload of current.

• 1. the Compressor from being damage

1. The diode is used to control the flow of electrons or current in

• Three direction

• 1. one direction

• Two direction

1. Residential homes are supplied with power

• 1. by 100/200 single phase 3 wires.

• 1. by 120/240 single phase 3 wires.

• 1. by 140/200 single phase 3 wires.

• 1. by 24/50 single phase 3 wires.

1. The horsepower is equal to 

• 1. 700 watts

• 1. 745 watts

• 1. 800 watts

• 1. 900 watts