Free Texas Single-Phase Pump Installer practice test

The answer is A. Starting components are in a surface control box and can be serviced without pulling the pump

Because the start capacitor and relay live in the surface control box, most starting faults on a three-wire system are diagnosed and repaired at the wellhead.

Source: Franklin Electric AIM Manual (control boxes)

The answer is A. Horsepower and voltage exactly, and be the same manufacturer

Franklin requires the box and motor be the same manufacturer, with hp rating and voltage matching exactly — otherwise premature failure should be expected.

Source: Franklin Electric AIM Manual (Installation Record, items 4.2-4.3)

The answer is B. Requires no external control box — starting components are inside the motor

A two-wire motor has its starting components built in, so no control box is needed. A three-wire motor uses an external control box holding the start capacitor and relay.

Source: Franklin Electric AIM Manual (two-wire and three-wire motors)

The answer is D. A flow sleeve (shroud) to force water past the motor for cooling

Submersible motors rely on water flowing past them for cooling. Without adequate flow velocity the motor overheats, so a flow sleeve restores it.

Source: Franklin Electric AIM Manual (Motor Cooling)

The answer is C. Because voltage drop increases with length and can take the motor outside its voltage tolerance

Undersized cable on a deep set drops voltage at the motor, raising current and heat — a leading cause of premature motor failure.

Source: Franklin Electric AIM Manual (drop cable selection)

The answer is B. A waterlogged tank or faulty air control

Goulds lists leaks, a faulty pressure switch, a waterlogged tank with faulty air control, a leaking tank or air valve, improper pre-charge, and an undersized tank. The waterlogged tank is the classic cause.

Source: Goulds Service Manual (Troubleshooting — pump starts and stops too often)

The answer is C. The start relay or start capacitor in the control box

On three-wire systems the start components live in the surface control box, so they are both the most common failure point and the easiest to check.

Source: Franklin Electric AIM Manual (control box troubleshooting)

The answer is D. An open winding

Infinite (open circuit) resistance means the winding or a lead is broken. Compare all readings to the manufacturer's resistance table for that model.

Source: Franklin Electric AIM Manual (motor winding resistance testing)

The answer is D. A megohmmeter (megger), applied at 500 volts

Franklin specifies measuring insulation resistance to ground at 500 volts — a job for a megohmmeter, not an ordinary multimeter.

Source: Franklin Electric AIM Manual (insulation resistance testing)

The answer is C. A shallow-well jet system, to measure suction lift

Goulds directs using a vacuum gauge on shallow-well systems, noting vacuum should not exceed 22 inches at sea level, and that the air control needs a minimum 3 inches of vacuum for 15 seconds.

Source: Goulds Service Manual (Troubleshooting — shallow well systems)