TPC TRANSFORMERS AND AC CIRCUITS
Heat and ____________ are the main problem areas in transformers. - Answer -Dirt
Transformer gauges indicate the correct oil level at a temperature of - Answer -25
Degrees Celsius
You should periodically test the air above the liquid in a transformer for TCG, which
stands for transformer - Answer -Combustible Gas
Inductance is represented in equations by the letter - Answer -L
XL = 2πfL is the equation for the ____________ reactance of a coil. - Answer -
Inductive
Four inductors with values of 25 h, 5 h, 12 h, and 7 h are connected in series. What is
the total inductance in the circuit? - Answer -49.0 h
One farad is equal to 1 coulomb per volt. A coulomb is a unit of - Answer -Electrical
Charge
Complete the following equation: 2π radians = - Answer -360 Degrees
In a parallel RL ac circuit, the Pythagorean theorem can be used to calculate - Answer -
Impedance
In an ac circuit, if XL and XC are equal, and EL and EC are equal, the circuit is said to
be - Answer -At Resonance
Connecting capacitors in parallel _________ the total capacitance. - Answer -Increases
The unit of measurement of capacitance is the - Answer -Farad
Capacitor plates are usually made of - Answer -Metal Foil
When replacing defective capacitors, always try to replace them with capacitors having
the same capacitance value and the same ____________ rating. - Answer -Voltage
When calculating power in an ac circuit, a negative value indicates energy in being
transferred from the load to the source, something that happens only with
____________ loads. - Answer -Reactive
Heat and ____________ are the main problem areas in transformers. - Answer -Dirt
Transformer gauges indicate the correct oil level at a temperature of - Answer -25
Degrees Celsius
You should periodically test the air above the liquid in a transformer for TCG, which
stands for transformer - Answer -Combustible Gas
Inductance is represented in equations by the letter - Answer -L
XL = 2πfL is the equation for the ____________ reactance of a coil. - Answer -
Inductive
Four inductors with values of 25 h, 5 h, 12 h, and 7 h are connected in series. What is
the total inductance in the circuit? - Answer -49.0 h
One farad is equal to 1 coulomb per volt. A coulomb is a unit of - Answer -Electrical
Charge
Complete the following equation: 2π radians = - Answer -360 Degrees
In a parallel RL ac circuit, the Pythagorean theorem can be used to calculate - Answer -
Impedance
In an ac circuit, if XL and XC are equal, and EL and EC are equal, the circuit is said to
be - Answer -At Resonance
Connecting capacitors in parallel _________ the total capacitance. - Answer -Increases
The unit of measurement of capacitance is the - Answer -Farad
Capacitor plates are usually made of - Answer -Metal Foil
When replacing defective capacitors, always try to replace them with capacitors having
the same capacitance value and the same ____________ rating. - Answer -Voltage
When calculating power in an ac circuit, a negative value indicates energy in being
transferred from the load to the source, something that happens only with
____________ loads. - Answer -Reactive
