CSLB C10 Test 5 Questions with 100 Correct Answers

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CSLB C10 Test 5 Questions with 100% Correct Answers

• Where the voltage between conductors exceeds 300 volts, the minimum

clearance of service drop conductors from flat roof structures is at least

• 3'
• 4'
• 8'
• 10'

Answer 8'

• Service conductors must have a clearance of not less than from

win- dows

• 3'
• 4'
• 8'
• 10'

Answer 3'

• An appliance on a 20-amp branch circuit may not draw more than
• 5 amps
• 12 amps
• 16 amps
• 20 amps 1 / 4

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Answer 16 amps

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

exposed live parts?

• 24"
• 36"
• 42"
• 48"

Answer 48"

• The minimum size overhead service entrance cable permitted is
• No 8 copper
• No 6 copper
• No 4 aluminum
• No 2 copper clad aluminum

Answer No 8 copper

• A 50-kVA transformer supplies 480 V and 40 A. What is its KW rating?
• 19 kW
• 40 kW
• 68 kW
• 77 kW

Answer 19 kW 2 / 4

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

a grounded wall

• 24"
• 36"
• 42"
• 48"

Answer 42"

• The cable that has an internal bonding strip of copper or aluminum in

contact with armor for its entire length is

• MI
• AC
• NMC
• RMC

Answer AC

• The lead wire on a heating cable is red. This indicated
• 120 V
• 208 V
• 240 V
• 277 V

Answer 240 V 3 / 4

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• The following should not be used on a live circuit
• voltmeter
• ohmmeter
• ammeter
• wattmeter

Answer Ohmmeter

• Which of the following wires is solid core
• No 10
• No 8
• No 6
• No 4

Answer No 10

• The minimum permitted size for fixture wire is
• No 14
• No 16
• No 18
• No 20

Answer No 18

• The instrument that tests the resistance of wire insulation is
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