WorksheetsNCCER Electrical 26102 Safety Review
Total questions: 37
Worksheet time: 21mins
In what instance does OSHA state that portable tools and appliances do not need to be grounded?
if they draw less than 8 amps
all portable tools and appliances must always be grounded
if they are insulated with scotch 88 electrical tape
if they have an approved system of double insulation
The beating of the heart can be upset by electrical current as small as?
1mA
75mA
5 mA
1A
The first step to be completed before working on a circuit is to?
check the circuit using test equipment
verify the operation of the test equipment
check the calibration of the test equipment
check that the circuit is tagged and locked out
The main factor that determines the outcome of an electrical shock is the?
amount of resistance
amount of voltage
amount of current
size of the victim
The OSHA standards for electrical utilization systems are covered in CFR?
1900
1910 and 1926
1940
1900 and 1940
The major cause of death from electrical shock is?
burns
fibrillation of the heart
head trauma
lack of oxygen
Batteries can be an explosion hazard because?
acid is explosive when mixed with air
hydrogen mixed with air is explosive in the proper concentration
PCBs in batteries are explosive
batteries are constructed of flammable material
The main requirement for an employee to enter a confined space is to?
have a second person with you in the space
have communication with personnel outside the space
be trained in confined space entry procedures
have adequate lighting
______ are intended for the electrical protection of personnel.
GFDEs
GFCCs
GFCIs
GFCPs
The four leading causes of deaths in the construction industry include electrical, caught in between, struck by and?
Falls
Poor PPE
Employer
People
A sign with white background, green paneling and white lettering is?
Fire Warning
Incident Sign
Welding area
Instruction sign
You need to assume that any facility constructed before _____ has asbestos in it.
1990
1980
2000
2008
none of these
A large number of electrical shock injuries are from portable electric hand tools. Most of these accidents could have been prevented by?
using the proper size extension cord
seeing that the tools are properly grounded
using different types and brand names of tools
using a EFCE circuit breaker
The anchorage system for PFAS must hold at least _____ pounds.
1000
2500
500
5000
2000
All electrical equipment and lines should be considered ______ until determined otherwise.
energized
de-energized
shorted
open
Specific data for hazardous material is found in _____.
ANSI standards
OSHA regulations
the MSDS
HAZMAT regulations
High Voltage is considered as ____ volts or more.
600
50
480
120
Lockout/Tagout Rule deals with ______.
the suggested procedure to be followed for the 'servicing and maintenance of machines and equipment'
apprenticeship training requirements
the specific procedure to be followed for the 'servicing and maintenance of machines and equipment'
Journeyman electricians only
When building a scaffold the scaffold planks/walk boards must extend over their end supports not less than _____ inches nor more than ____ inches.
4, 12
6, 14
none of these
6, 12
When using a straight ladder, the side rails should extend at least _____ above the roof top you are stepping onto.
12 inches
18 inches
34 inches
36 inches
According to OSHA, portable tools and appliances do not need to be grounded ____.
if they are to be disposed of; otherwise, all portable tools and appliances must
if they draw less than 10 amps of current
if they have an approved system of double insulation
if they are insulated
A step ladder (A-Frame Ladder) can be leaned up against the wall as long as it is at least ______ of its height from the wall.
cannot be leaned up against a wall
1/4
1/2
1/3
Who can enter a confined space area?
journeyman
qualified and trained individuals
foreman
apprentice
A confined space area would be considered a trench that is at least _____ deep.
any trench
6'
3'
4'
You should wear PFAS when working _____ feet or more above dangerous equipment.
8
4
6
10
Portable electric hand tools account for a large number of electrical shock injuries. The majority of these types of accidents can be prevented by ______.
proper grounding of tools
using extension cords
using different brands of tools
using circuit breakers
Hot Sticks are used to ______.
remove fuses
manually operate a disconnect switch
remove temporary grounds
all of these
What is the first thing you should do before you start working on a circuit before checking for voltage.
Check the circuit using a continuity checker
See that your equipment is calibrated for the test to be given.
Identify and check that the circuit is tagged properly and locked off/out. Then check for voltage with a meter.
Verify the operation of your test equipment.
Rubber gloves can be damaged by _____.
hand creams
talcum powder
washing with plain water instead of chemical cleaners
storage inside their leather protectors
How often should rubber electrical gloves be tested by the employee?
before each use
daily
weekly
every 6 months
An electrical apprentice should do all work on an electrical circuit with the power ______.
off
on
locked on
none of these
The factor which determines the outcome of an electrical shock is the _________________.
amount of voltage
amount of resistance
amount of current
the size of the victim
Confined space areas have special requirements in order to enter. What is the most important thing to remember if you are asked to enter a confined space area?
Have communication with someone outside.
Have adequate lighting.
Be trained in confined space entry procedures.
Have at least one other person with you in the space.
What class rubber gloves should be used when working with voltages at 540 volts?
Class 00
Class 0
Class 2
Class 3
Electrical equipment and wires should be considered __________ until determined otherwise by a qualified person.
directly shorted out
open
de-energized
energized/hot
What is asbestos?
Safety rules are developed to
A. protect employees and others
B. cause problems for employees
C. please employers
D. create more work for employees
