CSLB TEST 2026|QUESTIONS AND 100% CORRECT ANSWERS|LATEST !!!!2026|GRADED A+| (EXAM READY)

ANSWERS|LATEST !!!!2026|GRADED A+| (EXAM



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' - ANSWER 8'



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

a. 3'

b. 4'

c. 8'

d. 10' - ANSWER 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 - ANSWER 16 amps



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

a. 24"

b. 36"

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,c. 42"

d. 48" - ANSWER 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 - ANSWER 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 - ANSWER 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" - ANSWER 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 - ANSWER AC



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

a. 120 V

b. 208 V

c. 240 V

d. 277 V - ANSWER 240 V



The following should not be used on a live circuit

a. voltmeter

b. ohmmeter

c. ammeter

d. wattmeter - ANSWER Ohmmeter



Which of the following wires is solid core

a. No 10

b. No 8

c. No 6

d. No 4 - ANSWER No 10



The minimum permitted size for fixture wire is

a. No 14

b. No 16

c. No 18

d. No 20 - ANSWER No 18



The instrument that tests the resistance of wire insulation is

a. ohmmeter


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