Electrical Safety Handbook Flashcards
1
Q
According to the Electrical Safety Handbook, \_\_\_\_\_\_\_\_ is the difference in electrical potential between two points in a circuit. It is the force that causes the flow of electricity, and it is measured in volts. Can be compared to water pressure. A) Voltage B) Current C) Resistance D) Grounding
A
A) Voltage
2
Q
According to the Electrical Safety Handbook, \_\_\_\_\_\_\_\_\_\_\_ is similar to the effect of friction on the flow of water inn a pipe. (Water flows more freely in a large pipe than a small one.) Different materials have different resistance to the flow of electricity. Very high resistance materials are called insulators, while the low resistance materials are called conductors. Resistance is measured in ohms. A) Voltage B) Current C) Resistance D) Grounding
A
C) Resistance
3
Q
According to the Electrical Safety Handbook, \_\_\_\_\_\_\_\_ is a flow of electrical charge. It can be compared to the rate of flow of water in a pipe. Current is typically measures in amperes (or amps). A) Voltage B) Current C) Resistance D) Grounding
A
B) Current
4
Q
According to the Electrical Safety Handbook, electrical hazards are created when electrical equipment or wires have become faulty. Which of the following examples are correct that can lead to electrical hazards?
A) Worn out or deteriorated
B) Improperly installed
C) Adverse weather/natural events exposure
D) All of the above
A
D) All of the above
5
Q
According to the Electrical Safety Handbook, because electricity takes all paths to ground, electrical systems use multiple safety systems to deal with system faults. Conductive \_\_\_\_\_ rods are one component used to ensure that any stray electricity is returned to earth. A) Voltage B) Potential C) Insulating D) Grounding
A
D) Grounding
6
Q
According to the Electrical Safety Handbook, related electricity on the ground to a rippling water in a pool is attempting to explain the effect known as “ \_\_\_\_\_\_ gradient”. It is also referred to as “ground gradient” A) Current B) Voltage C) Potential D) Resistance
A
C) Potential
7
Q
According to the Electrical Safety Handbook, the potential gradient, or voltage difference, creates two problems known as “ \_\_\_\_\_\_\_\_\_\_\_\_ potential” and “\_\_\_\_\_\_\_\_\_\_ potential” A) Resistive & Touch B) Step & Touch C) Step & Voltage D) Fault & Touch
A
B) Step & Touch
8
Q
According to the Electrical Safety Handbook, the further apart that “X” and “Y” are, the greater the electrical contact hazard. This effect is referred to as “ potential” A) Ground B) Step C) Fault D) Gradient
A
B) Step
9
Q
According to the Electrical Safety Handbook, in a manner similar to step potential, electricity would flow through your body if you were to pkace your hand on an energized source, while your feet were at some distance apart from the source. The electricity would flow through the hand, arm, chest, abdomen, leg and foot to the ground. The difference in voltage (potential difference) in this case is referred to as “ \_\_\_\_\_\_ potential” A) Ground B) Step C) Fault D) Touch
A
D) Touch
10
Q
According to the Electrical Safety Handbook, a victim exposed to a large electric arc can be injured by the intense heat, molten metal splatter or by ultraviolet rays. The effect of electricity on the body and the severity of the shock depends on the:
A) Condition of the skin
B) Pressure of the body against the source
C) Moisture level of the surface of the skin
D) All of the above
A
D) All of the above
11
Q
According to the Electrical Safety Handbook, ladders and stretchers, due to their length, can present significant “\_\_\_\_\_\_\_\_\_\_\_and \_\_\_\_\_\_\_\_\_\_\_\_ potential” hazards and must be kept away from downed power lines A) Step and ground B) Step and touch C) Ground and touch D) Fault and touch
A
B) Step and touch
12
Q
According to the Electrical Safety Handbook, which of the following would be considered areas that may contain open energized equipment: A) Electrical Vaults B) Substations C) Generating Stations D) All of the above
A
D) All of the above
13
Q
According to the Electrical Safety Handbook, hich of the following is correct, a single wooden pole transmission line will range in voltage from: A) 500,000 V B) 230,000 V C) 115,000 – 230,000 V D) 69,000 – 115,000 V
A
D) 69,000 – 115,000 V
14
Q
According to the Electrical Safety Handbook, an easy to remember rule for working around live high voltage transmission lines is to keep at least \_\_\_ metres (\_\_\_ft.) away. A) 3 metres, 10 ft. B) 5 metres, 16 ft. C) 6 metres, 20 ft. D) 10 metres, 33 ft.
A
C) 6 metres, 20 ft.
15
Q
According to the Electrical Safety Handbook, bystanders should be back at least \_\_\_\_ metres (\_\_\_\_ ft.) A) 3 metres (10 ft.) B) 5 metres (16 ft.) C) 10 metres (33 ft.) D) 15 metres (50 ft.)
A
C) 10 metres (33 ft.)
