WorksheetsElectrical Maintenance and Troubleshooting
Total questions: 17
Worksheet time: 4hrs 15mins
Under what category(ies) can all maintenance performed on be grouped?
Preventive only
Unscheduled only
Scheduled and unscheduled
Scheduled and preventive
An accident-free career can best be achieved by following which of the following courses of action?
Constantly reading technical manuals
Reading all rules and regulations
Making a list of all potential work hazards
Taking a common-sense approach towards safety
If electrical equipment is to be repaired, what action should you take before beginning the actual work?
Remove the fuses for the associated circuits
Short out the main supply switches
Secure the main power switches in the open position and properly tag them
Station an individual with a fire extinguisher near the work area
If you are working on high-voltage circuits or around wires having exposed surfaces, you should keep tools and equipment that have metal parts what minimum number of feet from the work area?
5 feet
2 feet
3 feet
4 feet
To prevent low-voltage shock, you should be careful handling equipment having what minimum circuit voltage?
15 volts
12 volts
10 volts
6 volts
The intensity of electrical shock is determined by which of the following properties?
Current
Voltage
Impedance
Electromagnetic force
When using tools, you should observe which of the following rules?
Use tools for their intended purpose
Maintain tools in good repair
Replace tools that are damaged or not working properly
Each of the above
When you find a damaged power tool electrical cord, what action should you take?
Ignore the problem
Shorten the cord to remove the damaged part
Repair the damage with insulating tape
Replace the cord
What color is the safety ground wire for electrical tools?
Black
White
Green
Red
Discrepancies found before, during, or after a machine operates requires what type of maintenance?
Preventive
Unscheduled
Scheduled
Field
You are troubleshooting an electrical device that is not
receiving any power. What check should you make first?
Check fuse or circuit breaker
Check the power source
Check for loose connector pins
Check for visible indications of trouble
Which of the following meters should you use when troubleshooting an open circuit?
Voltmeter
Wattmeter
Ohmmeter
Ammeter
An ammeter is connected into a circuit in which of the following ways?
In parallel with the circuit
In series-parallel with the circuit
Both 1 and 2 above
In series with the circuit
Which of the following conditions is the most probable cause for a grounded circuit?
A blown fuse
A tripped circuit breaker
Frayed insulation on wiring
Loose terminal lugs
Which of the following types of meters are contained in the
multimeter?
Voltmeter, frequency meter, and ohmmeter
Frequency meter, ammeter, and voltmeter
Frequency meter, ohmmeter, and ammeter
Ammeter, voltmeter, and ohmmeter
The generation of static electricity on an object by rubbing is known as the
electrostatic charge
dielectric effect
triboelectric effect
prime charge
Under which of the following conditions is generated static
electricity decreased?
Dry air
Humid air
Cold air
Hot air
