Delmar 6
In an R-L parallel circuit, the value of impedance can be found if total current
and voltage are not known.
True
False - correct answer ✔True
Because the voltage and current are 90° out of phase with each other in a
pure inductive circuit, the current and voltage will be at different polarities 50%
of the time.
True
False - correct answer ✔True
A series RL circuit contains two resistors and two inductors. The resistors are
33 Ω and 47 Ω. The inductors have inductive reactances of 60 Ω and 30 Ω.
Angle theta is _____.
48.37°
52.27°
63.97°
72.55° - correct answer ✔48.37
A series RL circuit contains two resistors. The resistors are 33 Ω and 47 Ω.
When calculating the circuit values, the total resistance used is _____.
56 Ω
60 Ω
68 Ω
80 Ω - correct answer ✔80 Ω
,A ceiling fan has a light kit attached to the fan. What type of load is the ceiling
fan?
Power
Capacitive
resistive
inductive - correct answer ✔inductive
In a parallel circuit, ET = 120 V, R = 1500 Ω, and XL = 1000 Ω. What is the
apparent power?
17.31 VA
24 VA
29.6 VA
34.40 VA - correct answer ✔17.31 VA
In a series RL circuit, ET = 120 V, R = 40 Ω, and XL = 30Ω. What is ER?
72 V
88.57 V
96 V
151.43 V - correct answer ✔96v
In a parallel circuit, the voltage across the resistor and the voltage across the
inductor are _____.
in phase
180° out of phase
less than 90° out of phase with the resistor voltage leading
less than 90° out of phase with the resistor voltage lagging - correct answer
✔in phase
, In a parallel circuit, ET = 240 V, R = 330 Ω, and XL = 420 Ω. What is Z?
120 Ω
170 Ω
259.62 Ω
534.13 Ω - correct answer ✔259.62 Ω
A series RL circuit contains two resistors and two inductors. The resistors are
33 Ω and 47 Ω. The inductors have inductive reactances of 60 Ω and 30 Ω.
The applied voltage is 120 V. What is the voltage drop on the 33 Ω resistor?
32.89 V
46.84 V
55 V
60 V - correct answer ✔32.89 V
What does a schematic symbol that is used to represent an inductor depict?
a voltage connection
a transformer
a relay
a coil of wire - correct answer ✔a coil of wire
In a parallel circuit, ET = 120 V, R = 30 Ω, and XL = 40 Ω. What is IR?
1.71 A
2.4 A
3A
4 A - correct answer ✔4A
In an R-L parallel circuit, the value of impedance can be found if total current
and voltage are not known.
True
False - correct answer ✔True
Because the voltage and current are 90° out of phase with each other in a
pure inductive circuit, the current and voltage will be at different polarities 50%
of the time.
True
False - correct answer ✔True
A series RL circuit contains two resistors and two inductors. The resistors are
33 Ω and 47 Ω. The inductors have inductive reactances of 60 Ω and 30 Ω.
Angle theta is _____.
48.37°
52.27°
63.97°
72.55° - correct answer ✔48.37
A series RL circuit contains two resistors. The resistors are 33 Ω and 47 Ω.
When calculating the circuit values, the total resistance used is _____.
56 Ω
60 Ω
68 Ω
80 Ω - correct answer ✔80 Ω
,A ceiling fan has a light kit attached to the fan. What type of load is the ceiling
fan?
Power
Capacitive
resistive
inductive - correct answer ✔inductive
In a parallel circuit, ET = 120 V, R = 1500 Ω, and XL = 1000 Ω. What is the
apparent power?
17.31 VA
24 VA
29.6 VA
34.40 VA - correct answer ✔17.31 VA
In a series RL circuit, ET = 120 V, R = 40 Ω, and XL = 30Ω. What is ER?
72 V
88.57 V
96 V
151.43 V - correct answer ✔96v
In a parallel circuit, the voltage across the resistor and the voltage across the
inductor are _____.
in phase
180° out of phase
less than 90° out of phase with the resistor voltage leading
less than 90° out of phase with the resistor voltage lagging - correct answer
✔in phase
, In a parallel circuit, ET = 240 V, R = 330 Ω, and XL = 420 Ω. What is Z?
120 Ω
170 Ω
259.62 Ω
534.13 Ω - correct answer ✔259.62 Ω
A series RL circuit contains two resistors and two inductors. The resistors are
33 Ω and 47 Ω. The inductors have inductive reactances of 60 Ω and 30 Ω.
The applied voltage is 120 V. What is the voltage drop on the 33 Ω resistor?
32.89 V
46.84 V
55 V
60 V - correct answer ✔32.89 V
What does a schematic symbol that is used to represent an inductor depict?
a voltage connection
a transformer
a relay
a coil of wire - correct answer ✔a coil of wire
In a parallel circuit, ET = 120 V, R = 30 Ω, and XL = 40 Ω. What is IR?
1.71 A
2.4 A
3A
4 A - correct answer ✔4A
