mta helper exam 4612
To light the 300 W lamp. The following
X and Z
switches must be closed?
If all of a sudden switches WXY and Z The lamp will light and the motor will
are closed, the following will happen? rotate
With one hundred twenty volts applied
across the ten ome resistor the current 12
drawn by the resistor is how many amps?
The current drawn by the 300 W lamp
When lighted should be approximately 2.5
how many amps?
Of the following materials the best con-
Copper
ductor of electricity is
Is the sum of 6'6 5'9 and 2'1 1/2 is 14'4 1/2"
What is the total length of Electrical con-
64'6"
duit that must be run 14'6" 21'3" 6'0 22'9"
Of the following electrical devices the
one that is not normally used in direct transformer
current electrical circuits is?
The number of 120 volt light Bulbs that
should normally be connected in series 3
across a 600 volt Electric line is?
Of the following motors the one that does
Squirrel cage induction
not have any brushes is
The instrument that should be used to
accurately measure the resistance of ohmmeter
4700 ohm resistor is?
To measure the current in an electric cir-
cuit, the instrument that should be used Ammeter
is?
To measure the insulation resistance of
a rubber covered electrical cable the in- Megger
strument that should be used is?
An AC motor is hooked up to a pow-
er distribution box.In order to check the
, mta helper exam 4612
voltage at the motor terminals the instru-
Voltmeter
ment that should be used is?
To measure the shaft diameter of a motor
accurately to one thousandth of an inch Micrometer
the instrument that should be used is?
The instrument that should be used to
determine whether 25 Hz or 60 Hz is Frequency meter
present.An electrical circuit is?
The proper instrument to use to deter-
mine the diameter of the conductor of a Wire gage
piece of electric hook up wire is?
The amount of electrical power being
used in a balanced three phase circuit Wattmeter
should be measured with?
The electrical way form at a given point
in an electrical circuit can be observed Oscilloscope
with?
The proper instrument to use for measur-
6 foot folding ruler
ing the width of a door is?
A one inch hole with the tolerance of plus
or minus 3000ths is reamed in a steel
block.The proper instrument to use to Vernier Caliper
accurately check the diameter of the hole
is?
The number of conductors required to
connect to a three phase delta connect-
3
ed heater bank to an electric power panel
board is?
The Wire size that is most common-
ly used for branch.Lighting circuits and #12 A.W.G.
homes is?
When installing electrical circuits the tool
that should be used to pull wire through Snake
a conduit is a?
, mta helper exam 4612
The lowest voltage that a neon teslant
80 Volts
can detect is?
The best procedure to use when storing
apply a light coating of oil to the tools
tools that are subject to rusting is to?
If a 3 1/2 in long nails required to nail
wood framing members together the nail 16d
size to you should be?
Of the four motors the one that can op-
Induction motor
erate only on alternating current is?
The sum of 1/3 + 2/6 + 5/6 is? 1 17/30
What instrument should be used to mea-
sure the state of charge of a lead acid Hydrometer
storage battery?
if three 1 1/2 volt dry cell Batteries are
wired and series.The total voltage pro- 4.5 volts
vided by the three batteries is?
Taking into account time and 1/2 pay-
ment for time.Over forty hours of work
the gross pay of an employee who works $475.26
forty three hours in a week at a rate pay
of $10.68 per hour is?
The sum of 0.365 + 3.941 + 10.676 +
15.7666
0.784 is
In order to transmit mechanical power
between 2 rotated shafts.At right angles
bevel
to each other, 2 gears are used. what
gears are they?
To properly ground the service electrical
equipment in a building a ground con- the cold water line entering the building
nection should be made to?
The tool that should be used for cutting
hacksaw
thin wool steel conduit is?
An electrical circuit has current flowing
through it.The panel board switch feed-
To light the 300 W lamp. The following
X and Z
switches must be closed?
If all of a sudden switches WXY and Z The lamp will light and the motor will
are closed, the following will happen? rotate
With one hundred twenty volts applied
across the ten ome resistor the current 12
drawn by the resistor is how many amps?
The current drawn by the 300 W lamp
When lighted should be approximately 2.5
how many amps?
Of the following materials the best con-
Copper
ductor of electricity is
Is the sum of 6'6 5'9 and 2'1 1/2 is 14'4 1/2"
What is the total length of Electrical con-
64'6"
duit that must be run 14'6" 21'3" 6'0 22'9"
Of the following electrical devices the
one that is not normally used in direct transformer
current electrical circuits is?
The number of 120 volt light Bulbs that
should normally be connected in series 3
across a 600 volt Electric line is?
Of the following motors the one that does
Squirrel cage induction
not have any brushes is
The instrument that should be used to
accurately measure the resistance of ohmmeter
4700 ohm resistor is?
To measure the current in an electric cir-
cuit, the instrument that should be used Ammeter
is?
To measure the insulation resistance of
a rubber covered electrical cable the in- Megger
strument that should be used is?
An AC motor is hooked up to a pow-
er distribution box.In order to check the
, mta helper exam 4612
voltage at the motor terminals the instru-
Voltmeter
ment that should be used is?
To measure the shaft diameter of a motor
accurately to one thousandth of an inch Micrometer
the instrument that should be used is?
The instrument that should be used to
determine whether 25 Hz or 60 Hz is Frequency meter
present.An electrical circuit is?
The proper instrument to use to deter-
mine the diameter of the conductor of a Wire gage
piece of electric hook up wire is?
The amount of electrical power being
used in a balanced three phase circuit Wattmeter
should be measured with?
The electrical way form at a given point
in an electrical circuit can be observed Oscilloscope
with?
The proper instrument to use for measur-
6 foot folding ruler
ing the width of a door is?
A one inch hole with the tolerance of plus
or minus 3000ths is reamed in a steel
block.The proper instrument to use to Vernier Caliper
accurately check the diameter of the hole
is?
The number of conductors required to
connect to a three phase delta connect-
3
ed heater bank to an electric power panel
board is?
The Wire size that is most common-
ly used for branch.Lighting circuits and #12 A.W.G.
homes is?
When installing electrical circuits the tool
that should be used to pull wire through Snake
a conduit is a?
, mta helper exam 4612
The lowest voltage that a neon teslant
80 Volts
can detect is?
The best procedure to use when storing
apply a light coating of oil to the tools
tools that are subject to rusting is to?
If a 3 1/2 in long nails required to nail
wood framing members together the nail 16d
size to you should be?
Of the four motors the one that can op-
Induction motor
erate only on alternating current is?
The sum of 1/3 + 2/6 + 5/6 is? 1 17/30
What instrument should be used to mea-
sure the state of charge of a lead acid Hydrometer
storage battery?
if three 1 1/2 volt dry cell Batteries are
wired and series.The total voltage pro- 4.5 volts
vided by the three batteries is?
Taking into account time and 1/2 pay-
ment for time.Over forty hours of work
the gross pay of an employee who works $475.26
forty three hours in a week at a rate pay
of $10.68 per hour is?
The sum of 0.365 + 3.941 + 10.676 +
15.7666
0.784 is
In order to transmit mechanical power
between 2 rotated shafts.At right angles
bevel
to each other, 2 gears are used. what
gears are they?
To properly ground the service electrical
equipment in a building a ground con- the cold water line entering the building
nection should be made to?
The tool that should be used for cutting
hacksaw
thin wool steel conduit is?
An electrical circuit has current flowing
through it.The panel board switch feed-
