CSLB C10 TEST 1 QUESTIONS
AND VERIFIED SOLUTIONS 2025
GRADED A+ BEST FOR REVISION.
1/6
, 1. What is the minimum working clearance from an electrical panel under 600V?: 36"
2. Voltage drop in wire is a function of:: Wire gauge, Length of wire, Current flowin the wire
3. A 12-volt direct current, 13-watt fluorescent light is controlled by a photocell.The average daily
on-time is 12 hours per day. How many watt-hours are consumed by the light on an average
day?: 156
4. Where may you use nonmetallic-sheathed cable?: inside floors and walls
5. What is the maximum permitted distance between convenience outlets inkitchens?: 12'
6. The minimum permitted size fixture wire is:: No. 18
7. What is an Erickson coupling used for?: to connect two sections of rigid conduitwhen one section
cannot be turned
8. The smallest size grounding conductor permitted for service entrance is:: -
No. 8 copper
9. For an electric appliance with a 17.5 A load, the overcurrent device must notexceed:: 25 amps
10. A 5 kW appliance is used for 5 hours. At $0.014 per kWh, the cost of runningthe appliance is::
$0.35
11. If the plumber accidentally cuts installed wires, to whom should you reportthe problem?:
general contractor
12. What is the maximum distance to an outlet from any point along the wallbehind a kitchen
counter?: 24"
13. Which of the following materials is not corrosive?: enamel
14. 65 street lights are fed by a 2275-volt series circuit. What is the voltageacross each light?:
35 V
2/6
AND VERIFIED SOLUTIONS 2025
GRADED A+ BEST FOR REVISION.
1/6
, 1. What is the minimum working clearance from an electrical panel under 600V?: 36"
2. Voltage drop in wire is a function of:: Wire gauge, Length of wire, Current flowin the wire
3. A 12-volt direct current, 13-watt fluorescent light is controlled by a photocell.The average daily
on-time is 12 hours per day. How many watt-hours are consumed by the light on an average
day?: 156
4. Where may you use nonmetallic-sheathed cable?: inside floors and walls
5. What is the maximum permitted distance between convenience outlets inkitchens?: 12'
6. The minimum permitted size fixture wire is:: No. 18
7. What is an Erickson coupling used for?: to connect two sections of rigid conduitwhen one section
cannot be turned
8. The smallest size grounding conductor permitted for service entrance is:: -
No. 8 copper
9. For an electric appliance with a 17.5 A load, the overcurrent device must notexceed:: 25 amps
10. A 5 kW appliance is used for 5 hours. At $0.014 per kWh, the cost of runningthe appliance is::
$0.35
11. If the plumber accidentally cuts installed wires, to whom should you reportthe problem?:
general contractor
12. What is the maximum distance to an outlet from any point along the wallbehind a kitchen
counter?: 24"
13. Which of the following materials is not corrosive?: enamel
14. 65 street lights are fed by a 2275-volt series circuit. What is the voltageacross each light?:
35 V
2/6
