ET 26201
Authored by Johnathan Swing
Professional Development
9th - 12th Grade
Used 24+ times
AI Actions
Add similar questions
Adjust reading levels
Convert to real-world scenario
Translate activity
More...
Content View
Student View
21 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship of two sine waves if the vector diagram of two AC waveforms is a right angle?
are in phase
are 90* out of phase
have the same frequency
have the same peak voltage
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship of two sine waves if the phase angles are both at 0 degrees at the same time?
are in phase
the current lags the voltage
the current leads the voltage
are 90* out of phase
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the effective voltage value of a circuit that has a peak of 310V?
155V
197V
219V
438V
Answer explanation
RMS = Effective Voltage
RMS= 0.707 x 310
RMS= 219V
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the time for one cycle is 0.02 seconds, what is the frequency?
2Hz
20Hz
50Hz
60Hz
Answer explanation
Frequency = 1 sec/time it takes to complete 1 cycle
Example: 1/.02 = 50Hz
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is one type of non sinusoidal waveform?
sine wave
peak wave
sawtooth wave
phase angle wave
Answer explanation
Page 10 in Level 2 Text Book
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the frequency of an AC waveform that completes 25 cycles per half second?
12.5Hz
40Hz
50Hz
60Hz
Answer explanation
25hz x 2 = 50Hz
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the total capacitance of a 20-microfarad capacitor is in parallel with a 10-microfarad capacitor?
10 microfarad
20 microfarad
30 microfarad
40 microfarad
Answer explanation
Connecting capacitors in parallel is equivalent to adding the plate area. Therefore, the total capacitance is the sum of the individual capacitances.
10mf + 20mf = 30mf
Access all questions and much more by creating a free account
Create resources
Host any resource
Get auto-graded reports
Continue with Google
Continue with Email
Continue with Microsoft
or continue with
%20(1).png)
Apple
Others
By signing up, you agree to our Terms of Service & Privacy Policy
Already have an account?
