©THEBRIGHT EXAM STUDY SOLUTIONS 8/26/2024 11:32 AM
Electrical 2 module 1 Exam Questions And
Correct Answers
The hertz rating of a ac circuit is __ if the frequency is 20 cycles per 1/2 second - answer✔✔40
hertz
A circuit has an rms voltage of 120vac, the peak voltage is? - answer✔✔170v
The turns ratio of a transformer with 200 turns into primary and 100 turns in the secondary is __
- answer✔✔2:1
Opening the secondary of a CT (current transformer) underload will cause? -
answer✔✔Dangerously high voltages
A circuit has a peak voltage of 275 V the average voltage is. How do you get that? -
answer✔✔175.175v. 275x.637
Three equal capacitors in series has __ of the applied voltage - answer✔✔1/3
The formula for inductive reactance is - answer✔✔X(L) =2(pie)(f)(l)
Current an inductive circuit __ the voltage - answer✔✔Lags behind
The current an AC circuit With resistance only is __. the circuit has a resistance of 15 ohms and
a voltage of 150 V - answer✔✔10 amps
The calculations in AC circuits are done using __ unless stated otherwise - answer✔✔Effective
voltage value
Capacitive reactance __ when Frequency increases - answer✔✔Decreases
The current in a capacitive of circuit __ the voltage - answer✔✔Leads
The average value of a AC sine wave is __ times the peak value - answer✔✔0.637
All DC rules and laws including Ohms law apply in AC circuits containing only __ -
answer✔✔Resistance
To increase the capacitance of a capacitor __ the area of plates - answer✔✔Increase
Electrical 2 module 1 Exam Questions And
Correct Answers
The hertz rating of a ac circuit is __ if the frequency is 20 cycles per 1/2 second - answer✔✔40
hertz
A circuit has an rms voltage of 120vac, the peak voltage is? - answer✔✔170v
The turns ratio of a transformer with 200 turns into primary and 100 turns in the secondary is __
- answer✔✔2:1
Opening the secondary of a CT (current transformer) underload will cause? -
answer✔✔Dangerously high voltages
A circuit has a peak voltage of 275 V the average voltage is. How do you get that? -
answer✔✔175.175v. 275x.637
Three equal capacitors in series has __ of the applied voltage - answer✔✔1/3
The formula for inductive reactance is - answer✔✔X(L) =2(pie)(f)(l)
Current an inductive circuit __ the voltage - answer✔✔Lags behind
The current an AC circuit With resistance only is __. the circuit has a resistance of 15 ohms and
a voltage of 150 V - answer✔✔10 amps
The calculations in AC circuits are done using __ unless stated otherwise - answer✔✔Effective
voltage value
Capacitive reactance __ when Frequency increases - answer✔✔Decreases
The current in a capacitive of circuit __ the voltage - answer✔✔Leads
The average value of a AC sine wave is __ times the peak value - answer✔✔0.637
All DC rules and laws including Ohms law apply in AC circuits containing only __ -
answer✔✔Resistance
To increase the capacitance of a capacitor __ the area of plates - answer✔✔Increase
