WECA 101 STUDY PT. 2 EXAM QUESTIONS AND ANSWERS
What is the most important rule of electrical safety? - CORRECT ANSWER✅✅Think first
Why should a person work with only one hand when possible? - CORRECT ANSWER✅✅So a current
doesn't pass through your heart.
What range of electric current generally causes death? - CORRECT ANSWER✅✅100 to 200 milliamperes
What is fibrillation of the heart? - CORRECT ANSWER✅✅When the heart begins to quiver.
What is the operating principle of a defibrillator? - CORRECT ANSWER✅✅A current of 200 mA can reset
the heart.
Who is responsible for enforcing OSHA regulations? - CORRECT ANSWER✅✅US Secretary of Labor
What is the mission of OSHA? - CORRECT ANSWER✅✅To ensure safe and healthful workplaces.
What its MSDS? - CORRECT ANSWER✅✅Material Safety Data Sheet.
A padlock is used to lock out a piece of equipment. Who should have the key? - CORRECT
ANSWER✅✅The person working on the equipment.
What is a ground fault ? - CORRECT ANSWER✅✅An unintended path to the ground
What is the approximate current at which a ground-fault detector will open a circuit? - CORRECT
ANSWER✅✅5 milliamperes
Name three devices used to provide ground-fault protection. - CORRECT ANSWER✅✅Breaker
receptacle
,extension cord
What are the 4 classes of fires? - CORRECT ANSWER✅✅class A: Wood and paper
class B: Grease and gas
class C: Electrical
class D: Burning Metal
Section that covers grounding? - CORRECT ANSWER✅✅NEC 250
Definition of accessible? - CORRECT ANSWER✅✅Capable of being reached for operation, renewal and
inspection
Define a bonding jumper. - CORRECT ANSWER✅✅A reliable conductor to ensure the required electrical
conductivity between metal parts required to be electrically connected.
A generic term for a group of nonflammable synthetic chlorinated hydrocarbons used as electrical
insulating media is known as___. - CORRECT ANSWER✅✅Askarel
At no point along the floor line, in any wall space, can you be more than 6 ft from a receptacle outlet. To
accomplish this requirement, floor receptacle outlets satisfying this rule shall be located not more
than____inches from the wall. - CORRECT ANSWER✅✅18 in
Raceways on exterior surfaces of buildings shall be_____ and arranged to drain. - CORRECT
ANSWER✅✅Listed or approved or use in wet locations
Which of the following are not standard size fuses of time inverse circuit breakers according to NEC?
55 amp
90 amp
110 amp
175 amp - CORRECT ANSWER✅✅.55 amp
, Which rooms listed below in a dwelling unit must always have a wall mounted control device controlling
a lighting outlet?
.attic
.closet
.every habitable room
.crawl space - CORRECT ANSWER✅✅Every habitable room
There shall be a minimum of one ___ ampere branch circuit for the outlet(s) in a dwelling unit. -
CORRECT ANSWER✅✅20 ampere
The maximum general purpose branch circuit rating of a flat conductor cable is ___ amperes. - CORRECT
ANSWER✅✅20 amperes
A storable swimming pool is capable of holding water to a maximum depth of ____inches. - CORRECT
ANSWER✅✅42 in
The meaning of approved is ____. - CORRECT ANSWER✅✅Acceptable to the authority having
jurisdiction.
As defined in Article 100, a dwelling unit has the following feature(s):
.permanent provisions for cooking
.basement for storage
.space for sleeping - CORRECT ANSWER✅✅all three.
The prefix kilo- means____. - CORRECT ANSWER✅✅Thousand
The prefix milli- means - CORRECT ANSWER✅✅one thousandth or 1/1000
The Nec gives measurements in which system of units first? - CORRECT ANSWER✅✅SI metric
What is the most important rule of electrical safety? - CORRECT ANSWER✅✅Think first
Why should a person work with only one hand when possible? - CORRECT ANSWER✅✅So a current
doesn't pass through your heart.
What range of electric current generally causes death? - CORRECT ANSWER✅✅100 to 200 milliamperes
What is fibrillation of the heart? - CORRECT ANSWER✅✅When the heart begins to quiver.
What is the operating principle of a defibrillator? - CORRECT ANSWER✅✅A current of 200 mA can reset
the heart.
Who is responsible for enforcing OSHA regulations? - CORRECT ANSWER✅✅US Secretary of Labor
What is the mission of OSHA? - CORRECT ANSWER✅✅To ensure safe and healthful workplaces.
What its MSDS? - CORRECT ANSWER✅✅Material Safety Data Sheet.
A padlock is used to lock out a piece of equipment. Who should have the key? - CORRECT
ANSWER✅✅The person working on the equipment.
What is a ground fault ? - CORRECT ANSWER✅✅An unintended path to the ground
What is the approximate current at which a ground-fault detector will open a circuit? - CORRECT
ANSWER✅✅5 milliamperes
Name three devices used to provide ground-fault protection. - CORRECT ANSWER✅✅Breaker
receptacle
,extension cord
What are the 4 classes of fires? - CORRECT ANSWER✅✅class A: Wood and paper
class B: Grease and gas
class C: Electrical
class D: Burning Metal
Section that covers grounding? - CORRECT ANSWER✅✅NEC 250
Definition of accessible? - CORRECT ANSWER✅✅Capable of being reached for operation, renewal and
inspection
Define a bonding jumper. - CORRECT ANSWER✅✅A reliable conductor to ensure the required electrical
conductivity between metal parts required to be electrically connected.
A generic term for a group of nonflammable synthetic chlorinated hydrocarbons used as electrical
insulating media is known as___. - CORRECT ANSWER✅✅Askarel
At no point along the floor line, in any wall space, can you be more than 6 ft from a receptacle outlet. To
accomplish this requirement, floor receptacle outlets satisfying this rule shall be located not more
than____inches from the wall. - CORRECT ANSWER✅✅18 in
Raceways on exterior surfaces of buildings shall be_____ and arranged to drain. - CORRECT
ANSWER✅✅Listed or approved or use in wet locations
Which of the following are not standard size fuses of time inverse circuit breakers according to NEC?
55 amp
90 amp
110 amp
175 amp - CORRECT ANSWER✅✅.55 amp
, Which rooms listed below in a dwelling unit must always have a wall mounted control device controlling
a lighting outlet?
.attic
.closet
.every habitable room
.crawl space - CORRECT ANSWER✅✅Every habitable room
There shall be a minimum of one ___ ampere branch circuit for the outlet(s) in a dwelling unit. -
CORRECT ANSWER✅✅20 ampere
The maximum general purpose branch circuit rating of a flat conductor cable is ___ amperes. - CORRECT
ANSWER✅✅20 amperes
A storable swimming pool is capable of holding water to a maximum depth of ____inches. - CORRECT
ANSWER✅✅42 in
The meaning of approved is ____. - CORRECT ANSWER✅✅Acceptable to the authority having
jurisdiction.
As defined in Article 100, a dwelling unit has the following feature(s):
.permanent provisions for cooking
.basement for storage
.space for sleeping - CORRECT ANSWER✅✅all three.
The prefix kilo- means____. - CORRECT ANSWER✅✅Thousand
The prefix milli- means - CORRECT ANSWER✅✅one thousandth or 1/1000
The Nec gives measurements in which system of units first? - CORRECT ANSWER✅✅SI metric
