Are you a student taking up a course on electricity, how to connect it and use it effectively? Are you looking for a way to test out just how much you have understood so far? Then what better way than to take these 3e151: Electrical Safety Hardest Trivia Questions from your coursework? Do give them a try and keep testing yourself!
Hot electrical panel.
Cold electrical panel.
Cold package air conditioner.
Hot package air conditioner.
Fan relay
Fan speed relay
Evaporator relay
Condenser relay
At the shop.
On your person.
With your crew leader.
With your shop supervisor.
Starting circuit.
Frame mounts.
Motor air system.
Shafts' drive mechanism.
An evaporator.
A condenser.
A compressor.
An expansion device.
On the power and disconnect at least one lead from the meter.
Off the power and disconnect at least one lead from the meter.
On the power and disconnect at least one lead from the component.
Off the power and disconnect at least one lead from the component.
R
G
W
Y
Pictorial and line diagrams.
Line and sectional diagrams.
Sectional and pictorial diagrams.
Sectional and enhanced diagrams.
Control voltage.
No control voltage.
Too much control voltage.
Not enough control voltage.
R wire is broken.
Contacts are broken.
Y wire is broken.
R and Y wires are both broken.
Pulley or belt drive.
Bearings or the shaft.
Pulleys or the shafts.
End bells or ball bearings.
Setscrews.
Snap rings.
Lock pins.
O-rings.
A voltmeter.
An ohmmeter.
An ammeter.
A clamp-on ammeter.
A blown fuse, closed circuit, and grounded circuit.
A closed circuit, short circuit, and a blown fuse.
A grounded circuit, closed circuit, and a short circuit.
An open circuit, short circuit, and grounded circuit.
Will not start.
May run at normal speed.
May run at a lower-than-normal speed.
Will run at a higher-than-normal speed.
The water flow is sufficient.
There is too much water flow.
There is not enough water flow.
The cooling tower fan just cycled on.
Low suction pressure and high discharge pressure.
High suction pressure and low discharge pressure.
Low suction pressure and low discharge pressure.
High suction pressure and high discharge pressure.
A dirty coil and a fan running too slow.
A dirty coil and a high suction pressure.
Too much airflow and a high suction pressure.
Too much airflow and a fan running too slow.
A 4-hour standing vacuum test.
An operational test of the system.
Recurring maintenance.
A leak check.
Be a condenser in summer and an evaporator in winter.
Be an evaporator in summer and a condenser in winter.
Act only as an evaporator.
Act only as a condenser.
Fall.
Spring.
Summer.
Winter.
Flow.
Pressure.
Water-sending.
Velocity-sending.
Pump in manual.
Sump in manual.
Pump in auto.
Sump in auto.
Completely filled with antifreeze.
Completely filled with water.
Completely drained.
All of the above.
Touch each other.
Expand and contract.
Pull apart from each other.
Create a high amperage draw.
95°F + 15°F = 110°F and 245 psig.
95°F + 20°F = 115°F and 265 psig.
95°F + 25°F = 120°F and 286 psig
95°F + 30°F = 125°F and 301 psig
Low-pressure motor control.
High-pressure safety switch.
Termination switch.
Oil pressure switch.
Compressor nameplate only.
Refrigerator nameplate only.
Refrigerator nameplate and draw a diagram of the compressor lines and mounting.
Compressor nameplate and draw a diagram of the compressor lines and mounting.
Compressor, the evaporator, and the outdoor fan.
Indoor fan, the compressor, and the outdoor fan.
Compressor, the indoor fan, and the defrost cycle.
Outdoor fan, the indoor fan, and the auxiliary heat.
Wet type.
Dry type.
Round type.
Square type.
Open circuit.
Short circuit.
Grounded circuit.
All of the above.
A defective start capacitor.
A burned motor.
A blown fuse.
A closed circuit.
Incorrect overload switch.
Open disconnect switch.
Incorrect power supply.
Open fuse or breaker.
95°F
105°F
115°F
125°F
Suction line to be warmer than normal.
Suction line to be colder than normal.
Discharge line to be warmer than normal.
Discharge line to be colder than normal.
Mullion heater is defective.
Defrost time clock is defective.
Defrost termination switch is defective.
Evaporator fan motor is defective.
Refrigerant and allowing it to cool.
High side and allowing the pressures to equalize.
Valves and allowing the pressures to equalize.
Unit and allowing the pressures to equalize.
Rate this question:
Power supply is energized and the voltage is correct.
Connections are mechanically and electrically sound.
Contacts on all relays are clean and free to move.
Wires are all electrically insulated and tight.
Auxiliary refrigerant.
Auxiliary forced air.
Auxiliary heat.
All of the above.
A monthly basis.
A quarterly basis.
A semiannual basis.
An annual basis.
R
G
W
Y
R, G, and W.
R, G, and Y.
V, B, and W.
V, B, and Y.
Metal can.
Paper can.
Plastic can.
Bakelite iron can.
Product being refrigerated.
Condensing temperature.
Size of the compressor.
Ambient temperature.
8 to 12°F
10 to 14°F
12 to 16°F
16 to 22°F
Compressor pressure.
Condenser pressure.
Air temperature in the box.
Air temperature at the condenser.
Defrost is terminated by the time clock.
The unit operates with excessive head pressure.
The unit operates with excessive suction pressure.
Manually initiated defrost is terminated by the temperature sensing device.
Capacitor is open.
Run windings are open.
Start windings are open.
Internal overload protector is open.
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