Simulated Exam
Electrical Safety & Installation Quiz
Test your knowledge on electrical safety and installation practices with our comprehensive simulated exam. This quiz is designed for anyone looking to enhance their understanding of electrical codes and regulations.
Key Features:
- 41 detailed questions covering various topics
- Multiple choice format to challenge your knowledge
- Ideal for students, professionals, and certification seekers
When emerging from grade, underground wire should be protected from physical damage for a minimum of _____ ft.
6 ft.
8 ft.
9 ft.
10 ft.
For kitchen counter tops, what is the minimum width needed to require a receptacle?
12 inches
10 inches
14 inches
8 inches
What is the maximum weight a ceiling fan box box can hold without special attachment means?
60 Lb.
40 Lb.
50 Lb.
70 Lb.
Using the optional method, what size over-current protection would you select for a load calculated at a total of 68,000 Va on a 120/240 system?
200 amp over-current protection
150 amp over-current protection
100 amp over-current protection
125 amp over-current protection
What color should you use to mark the high leg of a 4-wire, delta connected system?
Green
White
Orange
Purple
What is the total calculated load for eight 5,000 watt dryers using the standard method?
24,000
32,000
42,000
36,000
When ladders are used for access to an upper landing surface, the ladder rails must extend at least _____ above the upper landing surface.
4 ft.
3 ft.
9 ft.
2 ft.
A ladder that is 12 ft. Tall is required to be set with the base how many feet away from the wall?
3ft
4ft
2ft
6ft
When installing fixed luminaries in a class I garage, the light shall be installed at least _____ ft. Above the finished floor.
10
11
12
14
For heaters that are installed in a Class I division 2 area, the heater shall not be in excess of _____% of the auto-ignition temperature in degrees Celsius.
80
90
100
120
There shall be a means provided to disconnect all _____ conductors of a fuel cell system.
Grounded
current carrying
Grounding
All conductors
When installing outdoor pool luminaries or ceiling suspended fans that are above the swimming pool, they are required to be a minimum _____ ft. Above the maximum level of the pool water.
8
10
12
13
When branch circuits supply neon tubing lights they shall be on a circuit that is in no in excess of _____ amps.
20
40
50
30
In classified locations, when using NPT fittings, how many threads should be engaged?
At least 6 threads.
At least 7 threads.
At least 8 threads.
At least 5 threads.
What is the voltage across a closed switch when the voltage supplying the switch is 120v?
12
120
10
0
What is the voltage across an open switch when the voltage supplying the switch is 120v?
12
10
120
0
What is the secondary voltage of a transformer that has a 4:1 turn ratio and a primary voltage of 480?
120
240
480
1820
What is the secondary voltage of a transformer that has a 2:1 ratio and a primary voltage of 480?
240v
24v
24v
120v
What is the primary voltage of a transformer with a 4:1 ratio and a secondary voltage with 120v?
120
240
480
12
What size service disconnect would you select for a three phase 208v service that has a calculated demand of 45,500?
150 amp
200 amp
225 amp
175 amp
Over-current protection shall be installed so that the center of the switch or breaker shall not be more that _____ height above the finished work space.
5 ft. 7 inches
8 ft. 7 inches
4 ft. 7 inches
6 ft. 7 inches
What size copper supply bonding jumper would select for a 200 amp service with 2/0 ungrounded copper service conductors?
6
4
8
12
What is the Voltage drop of a 200 amp circuit using 4/0 copper conductors that is 225 ft long on a 120/240 system?
4.5
6.5
5.5
10.5
What size main over-current device would you select for a house with a calculated demand of 85,000 on a single phase 120/240 service?
200
225
300
400
When securing and supporting trade size 1 1/4 reinforced thermosetting resin conduit, you will fasten it at no less than _____ feet in between each support.
3
7
2
5
How many general 15 amp branch circuits would be required for a 16x80 mobile home that is located in a mobile home park?
2
3
4
5
What is the burial depth requirement for conductors installed in rigid metal conduit that are under a minimum of 4 inches of concrete on a exterior slab with no vehicular traffic?
6 inches
18 inches
4 inches
0 inches
What size copper conductors would you select for a 2 HP 230v AC single phase motor terminating to 75°C terminals?
14 awg
12 awg
10 awg
8 awg
What size copper conductors would you select for a 7½ HP 208v AC three phase motor terminating to 60°C terminals with a nameplate FLA rating of 26 amps?
12 awg
10 awg
8 awg
4 awg
What size copper wire would you select for a lighting circuit that was rated to run for 4 hours at 16 amp terminating to 75°C terminals on a 20 amp circuit breaker?
14 awg
12 awg
10 awg
8 awg
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