CSLB C10 Test 1 Questions and Answers A+ Graded
(2025)
1. What .is .the .minimum .working .clearance .from .an .electrical .panel .under .600
.V?: .36"
2. Voltage .drop .in .wire .is .a .function .of:: .Wire .gauge, .Length .of .wire, .Current
.flow .in .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 .in
.kitchens?: .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
.conduit .when .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 .not
.exceed:: .25 .amps
10. A .5 .kW .appliance .is .used .for .5 .hours. .At .$0.014 .per .kWh, .the .cost .of .running
.the .appliance .is:: .$0.35
11. If .the .plumber .accidentally .cuts .installed .wires, .to .whom .should .you .report
.the .problem?: .general .contractor
12. What .is .the .maximum .distance .to .an .outlet .from .any .point .along .the .wall
.behind .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 .voltage
.across .each .light?: .35 .V
15. What .do .you .not .take .into .consideration .when .doing .load .demand .calcu-
, lations?: .small .portable .heating .and .cooling .appliances
.
16. The .symbol .represents .a:: .relay .coil
17. A .fixture .that .weighs .more .than . must .be .supported .independently
.of .an .outlet .box.: .50 .lb.
18. After .installing .a .new .A/C .how .would .you .test .it?: .turn .on .the .breaker .and
.check .voltage
(2025)
1. What .is .the .minimum .working .clearance .from .an .electrical .panel .under .600
.V?: .36"
2. Voltage .drop .in .wire .is .a .function .of:: .Wire .gauge, .Length .of .wire, .Current
.flow .in .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 .in
.kitchens?: .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
.conduit .when .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 .not
.exceed:: .25 .amps
10. A .5 .kW .appliance .is .used .for .5 .hours. .At .$0.014 .per .kWh, .the .cost .of .running
.the .appliance .is:: .$0.35
11. If .the .plumber .accidentally .cuts .installed .wires, .to .whom .should .you .report
.the .problem?: .general .contractor
12. What .is .the .maximum .distance .to .an .outlet .from .any .point .along .the .wall
.behind .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 .voltage
.across .each .light?: .35 .V
15. What .do .you .not .take .into .consideration .when .doing .load .demand .calcu-
, lations?: .small .portable .heating .and .cooling .appliances
.
16. The .symbol .represents .a:: .relay .coil
17. A .fixture .that .weighs .more .than . must .be .supported .independently
.of .an .outlet .box.: .50 .lb.
18. After .installing .a .new .A/C .how .would .you .test .it?: .turn .on .the .breaker .and
.check .voltage
