Electronics - Alternating Current vs Direct Current

Exercise :: Alternating Current vs Direct Current - General Questions

26. 

The power that is distributed from a power plant to your home is:

A. high voltage to high voltage
B. low voltage to high voltage
C. high voltage to low voltage
D. low voltage to low voltage

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

27. 

A rectangular wave that has a duty cycle of 50 percent could be called a:

A. c wave
B. sawtooth wave
C. square wave
D. triangle wave

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

28. 

A triangle wave consists of repeating:

A. positive ramps only
B. negative ramps only
C. positive and negative ramps of equal value
D. positive and negative ramps of unequal value

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

29. 

What is the name of a device used to directly measure the frequency of a periodic wave?

A. oscilloscope
B. frequency meter or counter
C. audio frequency generator
D. radio frequency generator

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

30. 

Which control should be moved to display more cycles of a signal on an oscilloscope?

A. horizontal position to left or right
B. volts/cm to a smaller number
C. vertical position to top or bottom
D. time/cm to a higher setting

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.