TPC 205: Providing Electrical Protection and Safety Flashcards
If a person is a victim of electric shock, your immediate action should be to
- begin ventricular fibrillation
- determine the amount of current they were exposed to
- ensure that breathing and circulation are maintained
- make them as comfortable as possible
Ensure that breathing and circulation are maintained
The NEC defines a qualified person as someone who
- can perform multiple tasks in a plant
- has been on the job at least ten years
- is familiar with equipment operation and hazards
- is trained in CPR and first aid
is familiar with equipment operation and hazards
when working around electricity, you should never wear
- an ANSI class G or E hard hat
- clothing made of polyester
- insulating gloves
- rubber-soled shoes
Clothing made of plyester
In all circuits, the size of the wire used depends on the amount of _______ the circuit must carry, not the amount of voltage
Current
Most fatal electric shocks occur when the current path passes through or near the _____
Heart
Several organizations have established procedures or standards for working with or near electrical equipment. Which set of standards is enforceable under US law?
- IEC
- ISO
- NEC
- OSHA
OSHA
All electrical equipment should meet the requirements of a recognized ____ such as FM or UL.
- local authority
- national trade group
- standards organization
- testing laboratory
Testing Laboratory
Which kind of electrical equipment cannot cause an explosion or fire of specific hazardous materials, because it can only release low levels of electricity?
• Industry approved
• Intrinsically safe
• NEMA listed
• UL tested
Intrinsically safe
To guard against electric shock, you should wear _______ gloves (for insulation) under _______ gloves (for protection)
• cotton; canvas
• cotton; leather
• rubber, leather
• rubber, steel mesh
Rubber; leather
If a chemical comes in contact with your eyes, your immediate action should be to
• apply a neutralizer
• bandage the eyes
• go to the plant medical department
•.rinse thoroughly
Rinse thoroughly
If several workers are working on a single piece of equipment, they should
• assign one person to guard the power source
O decide which one of them will be responsible for lockout
• each apply a lock to the power source
• obtain a master key to simplify lock removal
Each apply a lock to the power source
The barricade tape used to keep personnel out of an area where hazardous electrical work is being performed should be
• a maximum of 2 in. wide
• applied to the floor to mark off the area
• displayed at a readily visible level
• green or white in color
Displayed at a readily visible level
What tool is intended to be used to verify that a circuit has been de-energized?
• Hot stick
• Insulated screwdriver
• Voltage tester
• Voltmeter
Voltage tester
Which of the following is the best clothing choice when working with electricity?
• Heavy-weight cotton
Light-colored rayon
Loose-fitting nylon
• Short-sleeved polyester
Heavy weight cotton
Prescription glasses worn in an industrial setting must be ANSI approved. Safety goggles must be worn in all plants.
• Both statements are false
• Both statements are true
• Only the first statement is true
• Only the second statement is true
Only the first statement is true
OSHA requires that ______ prepare a written protection program for respirators if they are used in a facility.
- contracted workers
• employees
• employers
- local government
Employers
In most plants, disconnects should be locked out and tagged out. A locked and tagged out disconnect would be in the _____ position.
• mid travel
• neutral (non threatening)
• off|
• on.
Off
A hot stick that is used to manipulate electrical conductors from a distance is usually made from
- fiberglass
- metal
• plexiglass
• wood
Fiberglass
The first step in locking out power to a piece of equipment is to
• attach a tag to the circuit breaker
• notify the operator
• place a lock on the disconnect switch
• tum off electric power
Notify the operator
If a shock victim appears to be uninjured and feeling fine, you should
• begin emergency CPR
• call for prompt medical assistance
• encourage them to return to work
• observe them for several hours
Call for prompt medical assistance
If a victim of electric shock is unconscious, you should
• begin CPR immediately
• check for breathing and a pulse
• move him to a cool location
• try to get him to drink something
Check for breathing and a pulse
In the past, it was not uncommon to simply de-energized equipment electrically before working on it. In today’s workplace, you should _________ the main electrical disconnect
• isolate
• lock out
O pull down
• shut off
Lock out
Once power is locked out, you should _______ working on the equipment
• remove protective equipment before
- remove your lock when
- test the circuit before
◎ use non-insulated tools when
Test the circuit before
What kind of switch is designed to automatically cut off an electric tool’s power when the pressure of the operator’s finger is removed?
• Deadman
• Double insulated
O GFCI
• Overriding
Deadman
If you encounter a victim in contact with a live conductor, shut off the electricity or move the victim away from the conductor with a ________ object.
• damp
• metal
• nonconductive
• small
Non conductive
