California Insurance Practice Test - Free 20 Questions

Question 1

What is the minimum burial depth for direct-buried Type UF cable supplying a 120V branch circuit for general use?

Accepted Answer

24 inches,

Answer

12 inches,

Answer

18 inches,

Answer

30 inches

Question 2

What is the minimum height requirement for service equipment in a mobile home?

Accepted Answer

24 inches,

Answer

18 inches,

Answer

30 inches,

Answer

36 inches

Question 3

In a 3-phase system, what is the phase angle between each phase?

Accepted Answer

120 degrees,

Answer

90 degrees,

Answer

180 degrees,

Answer

360 degrees

Question 4

What is the ampacity of a 12 AWG copper conductor with THHN insulation at 75°C?

Accepted Answer

25 amperes,

Answer

15 amperes,

Answer

20 amperes,

Answer

30 amperes

Question 5

What is the required working space clearance in front of a 240V electrical panel?

Accepted Answer

3 feet,

Answer

2 feet,

Answer

4 feet,

Answer

6 feet

Question 6

Which article of the NEC covers grounding and bonding requirements?

Accepted Answer

Article 250,

Answer

Article 210,

Answer

Article 220,

Answer

Article 300

Question 7

What is the minimum size equipment grounding conductor for a 20-ampere branch circuit?

Accepted Answer

12 AWG,

Answer

14 AWG,

Answer

10 AWG,

Answer

8 AWG

Question 8

How do you calculate the total load for a dwelling unit?

Accepted Answer

Use NEC demand factors,

Answer

Add all connected loads,

Answer

Multiply by 1.25,

Answer

Use nameplate ratings only

Question 9

What is the maximum spacing between receptacles along a wall in a dwelling?

Accepted Answer

12 feet,

Answer

6 feet,

Answer

10 feet,

Answer

15 feet

Question 10

What is the purpose of a GFCI (Ground Fault Circuit Interrupter)?

Accepted Answer

Protect against ground faults,

Answer

Prevent overloads,

Answer

Reduce voltage drop,

Answer

Increase circuit capacity

Question 11

What is the minimum size service conductor for a 200-ampere service?

Accepted Answer

3/0 AWG copper,

Answer

2/0 AWG copper,

Answer

4/0 AWG copper,

Answer

250 kcmil copper

Question 12

According to Ohm's Law, if a circuit has 120 volts and draws 10 amperes, what is the resistance?

Accepted Answer

12 ohms,

Answer

1200 ohms,

Answer

110 ohms,

Answer

130 ohms

Question 13

What is the required height for receptacles above a kitchen countertop?

Accepted Answer

Not specified

Answer

12 inches,

Answer

18 inches,

Answer

20 inches,

Question 14

What is the minimum number of lighting outlets required in a habitable room?

Accepted Answer

One,

Answer

None,

Answer

Two,

Answer

One per 100 sq ft

Question 15

What is the maximum length of a ground rod that must be driven into the earth?

Accepted Answer

Full length unless rock bottom is encountered

Answer

6 feet,

Answer

8 feet,

Answer

10 feet,

Question 16

What is the minimum wire size for a 30-ampere circuit?

Accepted Answer

10 AWG,

Answer

14 AWG,

Answer

12 AWG,

Answer

8 AWG

Question 17

What is the purpose of a neutral conductor in a circuit?

Accepted Answer

Complete the circuit path,

Answer

Provide ground fault protection,

Answer

Increase voltage,

Answer

Reduce current

Question 18

What is the maximum number of disconnects allowed for a service?

Accepted Answer

6,

Answer

2,

Answer

4,

Answer

8

Question 19

What is the minimum depth for a junction box installed in a wall?

Accepted Answer

1-1/2 inches,

Answer

1/2 inch,

Answer

1 inch,

Answer

2 inches

Question 20

What is the required AFCI protection for bedroom circuits?

Accepted Answer

All 15A and 20A circuits,

Answer

Not required,

Answer

Only lighting circuits,

Answer

Only receptacle circuits

Free California NEC Code Requirements Practice Test

Question 1 of 20

What is the minimum burial depth for direct-buried Type UF cable supplying a 120V branch circuit for general use?