Alternating Current MCQs - Quiz 2

1. ___ is the relation between frequency and time period.
A) T=2f
B) T=f/2
C) T=1/f
D) None of the above

The correct answer is C

2. The linear distance travelled by a wave during one cyle is called ___.
A) Frequency
B) Wavelength
C) Time period
D) None of the above

The correct answer is B

3. If L is the inductance of the path through which wave is travelling, C is the capacitance of the path, then velocity of prpagation V = ___
A) 1 / √(LC)
B) 1 / √2(LC)
C) 2 / √(LC)
D) 2 / (LC)

The correct answer is A

4. Relation between wavelenth λ, frequency f and velocity of propagation V is ___.
A) V = f λ
B) f = V λ
C) λ = f V
D) None of the above

The correct answer is B

5. Mains frequency for most of Asia, Europe, Australia and Africa is ___.
A) 50 Hz
B) 60 Hz
C) 110 Hz
D) 220 Hz

The correct answer is A

6. Mains frequency in North America is ___.
A) 50 Hz
B) 60 Hz
C) 110 Hz
D) 220 Hz

The correct answer is B

7. Mains voltage for most of Asia, Europe, Australia and Africa is ___.
A) 110-127V
B) 220-240V
C) 500V
D) 50V

The correct answer is B

8. Mains voltage in North America is ___
A) 110-127V
B) 220-240V
C) 500V
D) 50V

The correct answer is A

9. Too low frequency would result in ___.
A) Flickering
B) High iron losses
C) Both A & B
D) None of the above

The correct answer is A

10. Too high frequency would result in the problem of ___.
A) Flickering
B) High iron losses
C) Both A & B
D) None of the above

The correct answer is B