Electrical

Question 1

2 electrical injuries

Answer 1

Direct and indirect

Question 2

Flicker or dim lights

Answer 2

Overloaded or loose connection

Question 3

Frequent bulb burnout

Answer 3

Use lower wattage bulb

Question 4

Worst frequency for injury

Answer 4

60hz

Question 5

Hertz

Answer 5

Cycles per second

Question 6

Hz in US vs outside

Answer 6

60hz vs 50hz

Question 7

Resistance

Answer 7

Measured in ohms (R) pipe/valve

Question 8

Power

Answer 8

Watts

Question 9

Current

Answer 9

Amps (I) flow rate

Question 10

Voltage

Answer 10

Volts, pressure

Question 11

1 hp =

Answer 11

750w

Question 12

West Virginia formula

Answer 12

W=VA

Question 13

Only place all power can be cut

Answer 13

Main panel box

Question 14

Where does a branch circuit start?

Answer 14

At final over protection point

Question 15

Grounding rod depth and size

Answer 15

8 ft in ground, 1/2” diameter

Question 16

Permanent joining of metallic parts

Answer 16

Bonding

Question 17

Continuous load should not exceed blank of breaker capacity

Answer 17

80%

Question 18

Continuous load

Answer 18

Max current expected for 3 hours

Question 19

Wire size for 15 amp circuit

Answer 19

14 ga

Question 20

Wire size for 20 amp circuit

Answer 20

12 ga

Question 21

Multiply amps by x for buffer

Answer 21

1.25

Question 22

How many watts per sq ft

Answer 22

3

Question 23

When using neutral as hot wire

Answer 23

Decide with black

Question 24

How many volts lost over 10ft

Answer 24

3

Question 25

Symptoms of voltage drop

Answer 25

``` Lights dim Tv pic shrink Motor runs hot Heater capacity down Appliances run improperly ```

Question 26

Causes of low voltage

Answer 26

Wires too small Circuit too long Poor connections

Question 27

Types of switches

Answer 27

Single pole Two pole (240v) 3 way 4 way

Question 28

Remember this when connecting to outlets

Answer 28

Black to brass

Question 29

GFCI tip | Ground fault circuit interrupter

Answer 29

Line in and load out