Licensed Electrical Contractor Electrical Contractor Electrical System Design & Installation 1

Question 1

When three or more conductors are installed in a single conduit or tubing, what is the maximum allowable conduit fill percentage specified in NEC Chapter 9, Table 1?

Accepted Answer

40%

Answer

31%

Answer

53%

Answer

60%

Question 2

According to NEC 430.22, branch circuit conductors supplying a single continuous-duty motor must have an ampacity of at least what percentage of the motor's full-load current (FLC) rating?

Accepted Answer

125%

Answer

100%

Answer

115%

Answer

150%

Question 3

Under NEC 230.71(A), what is the maximum number of service disconnecting means permitted for a single set of service entrance conductors?

Accepted Answer

6

Answer

2

Answer

4

Answer

8

Question 4

Per NEC 424.3(B), branch circuit conductors supplying fixed electric space heating equipment must be sized at a minimum of what percentage of the total heating load?

Accepted Answer

125%

Answer

100%

Answer

115%

Answer

150%

Question 5

According to NEC 220.14(I), what volt-ampere value must be used when calculating the load for each receptacle outlet in a commercial (non-dwelling) occupancy?

Accepted Answer

180 VA

Answer

120 VA

Answer

240 VA

Answer

360 VA

Question 6

Under NEC 240.4(D), what is the maximum overcurrent protection rating permitted for a 10 AWG copper branch circuit conductor?

Accepted Answer

30 amperes

Answer

20 amperes

Answer

25 amperes

Answer

40 amperes