Mod1 Flashcards

(56 cards)

1
Q

——————- is our most versatile form of energy.

A

electrity/electrical energy

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2
Q

the word electricity comes from the word ——————.

A

electron

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3
Q

matter is made up of electricity? t/f

A

true

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4
Q

central nucleus, positively charge?

A

proton

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5
Q

outer sector, negatively charge?

A

electron

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6
Q

as temperature increases, electron moves rapidly and splits at very high temperature. t/f

A

true

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7
Q

electrons flowing in the conductor is known as?

A

electric current

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8
Q

electrical pressure, the potential to do work.

A

voltage

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9
Q

voltage is compared to a?

A

water pressure

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10
Q

movement of electric charge (electrons).

A

current

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11
Q

current is compared to a?

A

moving water

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12
Q

amount of electricity flow in a conductor.

A

current

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13
Q

force which causes electrons to flow a conductor.

A

voltage

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14
Q

opposition of a material to the flow.

A

resistance

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15
Q

amount of energy or work that can be delivered by the current and the voltage.

A

power

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16
Q

path of flow of energy

A

circuit

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17
Q

objects which are part of a circuit and through which current flows.

A

circuit elements

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18
Q

a current flow through an unintended path.

A

fault

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19
Q

defines the relationship of the voltage, the current and the resistance in the electrical circuit.

A

ohm’s law

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20
Q

two types of voltages

A

-high voltage
-low voltage

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21
Q

660 volts or more

A

high voltage

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22
Q

transmission lines

A

high voltage

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23
Q

less than 660 volts

24
Q

distribution lines

25
(2) electrical wiring system
-line to line -line to ground
26
more accidents happen at high voltage area. t/f
false
27
(2) types of electric current
-dc -ac
28
an electric current flowing in one direction only.
direct current
29
electric current that reverses its direction of flow (polarity periodically accordig to a frequency measured in hertz, or cycles per second.
alternating current
30
(2) types of materials as to electrical resistance
-conductor -insulator
31
any material that offers little resistance to the flow of an electric current.
conductor
32
any material that is very poor conductor of electricity and prevent current from taking unwanted paths.
insulator
33
minimum current at which human being feels an electric shock (slight tingling sensation) is about ?
1.8mA at 60Hz
34
the limit current at which the human being can endure the pain of an electric shock ?
more than 3mA
35
maximum current at which human body can still move is about?
5-16mA but can cause secondary accidents
36
the inner resistance of a human body is about?
500-1000ohms
37
physical damage directly to the body from the electric current.
primary injuries
38
physical damage to the body resulting from accidents caused by the shock.
secondary injuries
39
provided to protect equipment not people. This stops the flow of electricity before any problem can develop.
Circuit breakers
40
GFCI stands for?
Ground fault circuit interrupter
41
A fast acting circuit breaker which senses small imbalances in the circuit caused by current leakage to ground.
GFCI
42
Standard procedures for the control of hazardous energy sources which covers maintenance of machines .
Lock out / tag out system or LOTO
43
Device that utilizes a positive means such as lock to hold an energy isolating device in the safe position and prevents energizing of an equipment.
Lockout device
44
A warning device, such as tag and a means of a attachment .
Tagout device
45
Is an unforseen situation that threatens your employees, customers, or the public; disrupts or shuts down your operations; or causes physical or environmental damage.
Workplace emergency
46
Emergencies may be natural or manmade and include the following: (3)
1. Natural Disasters 2. Technological 3. Human
47
Identify different emergency scenarios ahead of time and define emergency procedure/plan for each scenario.
Pre-plans
48
Prepare resources in advanced and as a redundancy (e.g. emergency numbers directory, floor plans, evacuation maps, assembly areas, emergency supplies, logistics, tools to account people, emergency food and water, etc.).
Pre-plans
49
Establish authority during emergencies. Who’s in-charge, who will do what, define roles and responsibilities.
Incident Command Structure
50
Identify training needs, conduct employee trainings and drills in a regular basis covering all possible scenarios.
Employee Training
51
Continuously improve the plan which covers not only the procedure but covers all resources needed (e.g. equipment, facilities, supplies, etc.) through regular inspections, audits, drills, post-incident reviews, periodic document review, and evaluation of the program/system effectiveness.
Management System Review
52
refers to medical attention that is administered immediately after the injury occurs and at the location where it occurred.
First aid
53
It often consists of a one-time, short-term treatment and requires little technology or training to administer
First aid
54
Purpose of First Aid: (5)
1. Preserve life. 2. Prevent illness or injury from becoming worse. 3. Relieve pain, if possible. 4. Promote recovery. 5. Protect the unconscious.
55
Standard First Aid Programs:
1. Basic Life Support (BLS) - Cardiopulmonary resuscitation (CPR) 2. Basic First Aid
56
Is the only authorized/recognized organization to conduct training and certify First Aiders.
Red cross