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