JATC YEAR 1 FINAL LATEST
EXAM
Which of the following is an unsafe act that might be found with ladders? -
ANSWERS-overreaching from a ladder
Which of the following is an unsafe act that might be found with ladders? -
ANSWERS-carrying to heavy of a load up the ladder
A ladder top should extend at least ? above the roof edge of a building when used
as access to the roof of a building. - ANSWERS-36"
It is OK to carry at least one tool in your hands when climbing a ladder. -
ANSWERS-False
Which of the following would not be a factor that determines the severity of an
electric shock?
I. The amount of current flowing through the body
II. The current's path through the body
III. The length of time the body remains in the circuit
IV. The current's frequency - ANSWERS-All are factors that determine the
severity of an electric shock.
END OF
PAGE
1
, JATC YEAR 1 FINAL LATEST
EXAM
Burns are the most common shock-related injury. An electrical accident can result
in an electrical burn, arc burn, thermal contact burn, or a combination of burns. -
ANSWERS-True
? are devices that interrupt the flow of electricity within as little as 1/40 of a second
to prevent electrocution. - ANSWERS-Ground-fault circuit interrupters
How often do electrocutions occur in the United States? - ANSWERS-1 per week
Occupational Safety & Health Administration (OSHA) places the threshold voltage
of electric shock at ? . - ANSWERS-50 V
What is the limited approach boundary distance for an exposed fixed circuit part on
a 480Y/277-volt distribution panel? - ANSWERS-3'6"
To ensure adequate protection, a(n) ? must be calculated on the basis of the amount
of current present if a short circuit occurs, the time the arc is allowed to burn, and
the distance the worker is from the arc. - ANSWERS-flash hazard analysis
Which National Fire Protection Association (NFPA) document covers safe
working practices for electrical work? - ANSWERS-NFPA 70E
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PAGE
2
, JATC YEAR 1 FINAL LATEST
EXAM
Flame-resistant clothing is designed for the amount of heat that could be present.
This heat is expressed in calories per square centimeter of "incident energy." -
ANSWERS-True
A(n) ? GFCI requires the amount of current leaving the source and returning to the
source to be within 5 mA of each other. - ANSWERS-Class A
What are two recognized means of preventing injury during electrical equipment
operations? - ANSWERS-Grounding
Insulation
The metal housing of a drill-motor is a(n) ? (conductor/insulator). - ANSWERS-
conductor
Double insulation on a drill will guarantee protection and safe usage of the drill. -
ANSWERS-False
Note: Double insulation does not provide protection against defective cords and
plugs or against heavy moisture conditions.
o get a tool or piece of material up to the scaffold from the ground, you should ? . -
ANSWERS-use a hand line and bucket or other receptacle
END OF
PAGE
3
EXAM
Which of the following is an unsafe act that might be found with ladders? -
ANSWERS-overreaching from a ladder
Which of the following is an unsafe act that might be found with ladders? -
ANSWERS-carrying to heavy of a load up the ladder
A ladder top should extend at least ? above the roof edge of a building when used
as access to the roof of a building. - ANSWERS-36"
It is OK to carry at least one tool in your hands when climbing a ladder. -
ANSWERS-False
Which of the following would not be a factor that determines the severity of an
electric shock?
I. The amount of current flowing through the body
II. The current's path through the body
III. The length of time the body remains in the circuit
IV. The current's frequency - ANSWERS-All are factors that determine the
severity of an electric shock.
END OF
PAGE
1
, JATC YEAR 1 FINAL LATEST
EXAM
Burns are the most common shock-related injury. An electrical accident can result
in an electrical burn, arc burn, thermal contact burn, or a combination of burns. -
ANSWERS-True
? are devices that interrupt the flow of electricity within as little as 1/40 of a second
to prevent electrocution. - ANSWERS-Ground-fault circuit interrupters
How often do electrocutions occur in the United States? - ANSWERS-1 per week
Occupational Safety & Health Administration (OSHA) places the threshold voltage
of electric shock at ? . - ANSWERS-50 V
What is the limited approach boundary distance for an exposed fixed circuit part on
a 480Y/277-volt distribution panel? - ANSWERS-3'6"
To ensure adequate protection, a(n) ? must be calculated on the basis of the amount
of current present if a short circuit occurs, the time the arc is allowed to burn, and
the distance the worker is from the arc. - ANSWERS-flash hazard analysis
Which National Fire Protection Association (NFPA) document covers safe
working practices for electrical work? - ANSWERS-NFPA 70E
END OF
PAGE
2
, JATC YEAR 1 FINAL LATEST
EXAM
Flame-resistant clothing is designed for the amount of heat that could be present.
This heat is expressed in calories per square centimeter of "incident energy." -
ANSWERS-True
A(n) ? GFCI requires the amount of current leaving the source and returning to the
source to be within 5 mA of each other. - ANSWERS-Class A
What are two recognized means of preventing injury during electrical equipment
operations? - ANSWERS-Grounding
Insulation
The metal housing of a drill-motor is a(n) ? (conductor/insulator). - ANSWERS-
conductor
Double insulation on a drill will guarantee protection and safe usage of the drill. -
ANSWERS-False
Note: Double insulation does not provide protection against defective cords and
plugs or against heavy moisture conditions.
o get a tool or piece of material up to the scaffold from the ground, you should ? . -
ANSWERS-use a hand line and bucket or other receptacle
END OF
PAGE
3
