CSLB C10 Test 1 Questions and Correct Answers

CSLB C10 Test 1 Questions And
Correct Answers


Where the voltage between conductors exceeds 300 volts, the minimum clearance of
service drop conductors from flat roof structures is at least

a. 3'

b. 4'

c. 8'

d. 10'

8'




Service conductors must have a clearance of not less than __ from windows

a. 3'

b. 4'

c. 8'

d. 10'

3'




An appliance on a 20-amp branch circuit may not draw more than

a. 5 amps

b. 12 amps

,c. 16 amps

d. 20 amps

16 amps




What is the minimum clear working space in front of a 480 V panel opposite exposed
live parts?

a. 24"

b. 36"

c. 42"

d. 48"

48"




The minimum size overhead service entrance cable permitted is

a. No 8 copper

b. No 6 copper

c. No 4 aluminum

d. No 2 copper clad aluminum

No 8 copper




A 50-kVA transformer supplies 480 V and 40 A. What is its KW rating?

a. 19 kW

,b. 40 kW

c. 68 kW

d. 77 kW

19 kW




What is the minimum clear working space in front of a 480V panel opposite a grounded
wall

a. 24"

b. 36"

c. 42"

d. 48"

42"




The cable that has an internal bonding strip of copper or aluminum in contact with
armor for its entire length is

a. MI

b. AC

c. NMC

d. RMC

AC




The lead wire on a heating cable is red. This indicated

, a. 120 V

b. 208 V

c. 240 V

d. 277 V

240 V




The following should not be used on a live circuit

a. voltmeter

b. ohmmeter

c. ammeter

d. wattmeter

Ohmmeter




Which of the following wires is solid core

a. No 10

b. No 8

c. No 6

d. No 4

No 10




The minimum permitted size for fixture wire is