Apprentice Lineman Exam Newest
Exam Complete Questions and
Correct Answers with Rationales |
Already Graded A+||Brand New
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What year was the IBEW formed, and who was its President? - Answer- 1890, Henry
Miller
What should be checked for when examining as injured person? - Answer- 1. Breathing
2. Pulse
3. Head Injury
4. Paralysis on one side of the face
5. Laryngectomee
6. Stains and burns on or around mouth
What is shock? - Answer- A depressed state of all body functions due to failure of the
circulatory system.
What are some signs of shock? - Answer- 1. Increased shallow breathing
2. Cold clammy skin
3. Low body temperature
How should shock be treated? - Answer- 1. Maintain normal body temperature
2. Ensure adequate oxygen supply
3. Keep warm
4. Control bleeding if necessary lie down with head lower than feet
5. Do not move unless necessary
What are ways to control bleeding? - Answer- Direct pressure on pressure point and in
extreme cases tourniquet.
What is artificial respiration? - Answer- The forcing of air into the lungs of one who
cannot breathe for himself.
How deep should a gain be cut? - Answer- 1/2"
Poles set on curves, corners, and strain points should be set __________ inches
deeper. - Answer- 6
,If a pole is set near an energized line what precautions should be taken? - Answer- 1.
Cover with protective equipment
2. Feeder holds
3. Rubber gloves
Wood poles are classified by their: - Answer- 1. Height
2. Top circumference
3. Circumference 6' from the bottom of the pole
The denominator of an improper fraction is __________ than the numerator. - Answer-
smaller
What materials do electrons travel freely through? - Answer- conductors
If few electrons travel freely through a material, that material is said to be an
_________. - Answer- insulator
Is there such a thing as a perfect insulator? - Answer- no
The opposition to current flow through a material is called? - Answer- resistance
What is the unit of measurement of resistance? - Answer- Ohm
What is the resistance of 1000 feet of #10 copper? - Answer- 1 Ohm
What is electric current? - Answer- The definite drift of electrons from a point of negative
potential to a point of positive potential.
The unit of measurement of electromotive force is the: - Answer- Volt
The unit of current flow is: - Answer- Ampere
In a circuit the current is __________ proportional to the voltage and __________
proportional to the resistance. - Answer- directly, inversely
The __________ at which work is done is power. The formula for this is: - Answer- rate,
Power = Work ÷ Time
One joule of work done in one second of time is one __________ of electrical work. -
Answer- Watt
The unit of electrical work is the __________ ? - Answer- Joule
The unit of electrical power is the __________ ? - Answer- Watt
,__________ is the unit of measurement of work for mechanical power. - Answer-
Horsepower
What is the most common cause for lost power? - Answer- heat
How many watts are in one horsepower? - Answer- 746
One watt equals __________ horsepower? - Answer- .00134
1/746
What is a watts definition? - Answer- The power used when one amp flows with one
volt.
What is the speed of light? - Answer- 186,000 miles per second
What NECA district covers outside work exclusively? - Answer- Tenth District
What is a guy? - Answer- A brace or cable fastened to strengthen a pole and to keep it
in position.
Aluminum has what conductivity, tensile strength, and weight of copper? - Answer-
60%, 45%, 33%
One mill is equal to __________ of an inch? - Answer- 1/1000
How do you find the circular mil cross section area of a wire? - Answer- Square the
diameter of the wire in mills.
What is the mathematical expression for series resistance? - Answer- Rt = R₁ + R₂ + R₃
+ R₄...
A circuit having only one current path is called a __________ circuit? - Answer- series
What is the formula for determining the total current in a series circuit? - Answer- It = I₁
= I₂ = I₃ = I₄...
Electrical energy is transformed into __________ when current flows through a resistor.
- Answer- heat
What is the formula for power in a series circuit? - Answer- Pt = P₁ + P₂ + P₃ +P₄...
What is the formula for voltage in a parallel circuit? - Answer- Et = E₁ = E₂ = E₃ = E₄...
What is the formula for resistance in a parallel circuit? - Answer- 1/Rt = 1/R₁ + 1/R₂ +
1/R₃ + 1/R₄...
, What is the formula for total current in a parallel circuit? - Answer- It = I₁ + I₂ + I₃ + I₄...
What is the formula to find total power in a parallel circuit? - Answer- Pt = P₁ + P₂ + P₃ +
P₄...
What is produced when a conductor is moved through magnetic lines of force? -
Answer- an EMF is induced
A device used to convert AC power from one combination of voltage and current to
another is called a __________ ? - Answer- transformer
The sheet iron core of a transformer forms a closed: - Answer- magnetic circuit
How are the primary and secondary windings of a transformer coupled? - Answer-
magnetically
What is the formula for number of windings to voltage? - Answer- voltage
primary/voltage secondary = number of turns primary/number of turns secondary
What destroys transformers in an overload situation? - Answer- heat
The purpose of oil in a transformer is: - Answer- cool and insulate the coils
What keeps a transformer from acting as a short circuit? - Answer- Counter voltage
(aka: back voltage, CEMF)
What is usually the maximum temperature the insulation in a transformer can stand? -
Answer- 221° F (105° C)
Why are underground transformers and their bushings hermetically sealed? - Answer-
To guard against moisture damage.
What does a CSP transformer have that a conventional does not? - Answer- 1. Primary
lightning arrestor
2. Primary protective fuse link
3. Overcurrent protection on secondary
4. Overload Signal lamp
5. External Operating handle for opening and closing secondary
6. No load tap changer
What is the formula for resistivity of a wire? - Answer- R = (K x L) ÷ A
Where: R = resistance
K = specific resistance
L = length of wire in feet
A = circular mil area
Exam Complete Questions and
Correct Answers with Rationales |
Already Graded A+||Brand New
Version!!
What year was the IBEW formed, and who was its President? - Answer- 1890, Henry
Miller
What should be checked for when examining as injured person? - Answer- 1. Breathing
2. Pulse
3. Head Injury
4. Paralysis on one side of the face
5. Laryngectomee
6. Stains and burns on or around mouth
What is shock? - Answer- A depressed state of all body functions due to failure of the
circulatory system.
What are some signs of shock? - Answer- 1. Increased shallow breathing
2. Cold clammy skin
3. Low body temperature
How should shock be treated? - Answer- 1. Maintain normal body temperature
2. Ensure adequate oxygen supply
3. Keep warm
4. Control bleeding if necessary lie down with head lower than feet
5. Do not move unless necessary
What are ways to control bleeding? - Answer- Direct pressure on pressure point and in
extreme cases tourniquet.
What is artificial respiration? - Answer- The forcing of air into the lungs of one who
cannot breathe for himself.
How deep should a gain be cut? - Answer- 1/2"
Poles set on curves, corners, and strain points should be set __________ inches
deeper. - Answer- 6
,If a pole is set near an energized line what precautions should be taken? - Answer- 1.
Cover with protective equipment
2. Feeder holds
3. Rubber gloves
Wood poles are classified by their: - Answer- 1. Height
2. Top circumference
3. Circumference 6' from the bottom of the pole
The denominator of an improper fraction is __________ than the numerator. - Answer-
smaller
What materials do electrons travel freely through? - Answer- conductors
If few electrons travel freely through a material, that material is said to be an
_________. - Answer- insulator
Is there such a thing as a perfect insulator? - Answer- no
The opposition to current flow through a material is called? - Answer- resistance
What is the unit of measurement of resistance? - Answer- Ohm
What is the resistance of 1000 feet of #10 copper? - Answer- 1 Ohm
What is electric current? - Answer- The definite drift of electrons from a point of negative
potential to a point of positive potential.
The unit of measurement of electromotive force is the: - Answer- Volt
The unit of current flow is: - Answer- Ampere
In a circuit the current is __________ proportional to the voltage and __________
proportional to the resistance. - Answer- directly, inversely
The __________ at which work is done is power. The formula for this is: - Answer- rate,
Power = Work ÷ Time
One joule of work done in one second of time is one __________ of electrical work. -
Answer- Watt
The unit of electrical work is the __________ ? - Answer- Joule
The unit of electrical power is the __________ ? - Answer- Watt
,__________ is the unit of measurement of work for mechanical power. - Answer-
Horsepower
What is the most common cause for lost power? - Answer- heat
How many watts are in one horsepower? - Answer- 746
One watt equals __________ horsepower? - Answer- .00134
1/746
What is a watts definition? - Answer- The power used when one amp flows with one
volt.
What is the speed of light? - Answer- 186,000 miles per second
What NECA district covers outside work exclusively? - Answer- Tenth District
What is a guy? - Answer- A brace or cable fastened to strengthen a pole and to keep it
in position.
Aluminum has what conductivity, tensile strength, and weight of copper? - Answer-
60%, 45%, 33%
One mill is equal to __________ of an inch? - Answer- 1/1000
How do you find the circular mil cross section area of a wire? - Answer- Square the
diameter of the wire in mills.
What is the mathematical expression for series resistance? - Answer- Rt = R₁ + R₂ + R₃
+ R₄...
A circuit having only one current path is called a __________ circuit? - Answer- series
What is the formula for determining the total current in a series circuit? - Answer- It = I₁
= I₂ = I₃ = I₄...
Electrical energy is transformed into __________ when current flows through a resistor.
- Answer- heat
What is the formula for power in a series circuit? - Answer- Pt = P₁ + P₂ + P₃ +P₄...
What is the formula for voltage in a parallel circuit? - Answer- Et = E₁ = E₂ = E₃ = E₄...
What is the formula for resistance in a parallel circuit? - Answer- 1/Rt = 1/R₁ + 1/R₂ +
1/R₃ + 1/R₄...
, What is the formula for total current in a parallel circuit? - Answer- It = I₁ + I₂ + I₃ + I₄...
What is the formula to find total power in a parallel circuit? - Answer- Pt = P₁ + P₂ + P₃ +
P₄...
What is produced when a conductor is moved through magnetic lines of force? -
Answer- an EMF is induced
A device used to convert AC power from one combination of voltage and current to
another is called a __________ ? - Answer- transformer
The sheet iron core of a transformer forms a closed: - Answer- magnetic circuit
How are the primary and secondary windings of a transformer coupled? - Answer-
magnetically
What is the formula for number of windings to voltage? - Answer- voltage
primary/voltage secondary = number of turns primary/number of turns secondary
What destroys transformers in an overload situation? - Answer- heat
The purpose of oil in a transformer is: - Answer- cool and insulate the coils
What keeps a transformer from acting as a short circuit? - Answer- Counter voltage
(aka: back voltage, CEMF)
What is usually the maximum temperature the insulation in a transformer can stand? -
Answer- 221° F (105° C)
Why are underground transformers and their bushings hermetically sealed? - Answer-
To guard against moisture damage.
What does a CSP transformer have that a conventional does not? - Answer- 1. Primary
lightning arrestor
2. Primary protective fuse link
3. Overcurrent protection on secondary
4. Overload Signal lamp
5. External Operating handle for opening and closing secondary
6. No load tap changer
What is the formula for resistivity of a wire? - Answer- R = (K x L) ÷ A
Where: R = resistance
K = specific resistance
L = length of wire in feet
A = circular mil area
