CRO – 1 – 1

1. The time base signal in a CRO is a :

(a) Rectangular waveform
(b) High frequency sinusoidal wave form
(c) High frequency sawtooth wave form
(d) Square wave form

ANSWER
Answer : (c)

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

2. The units for the deflection sensitivity of a CRO are :

(a) Meter/volt
(b) mm/volt
(c) mm/m-volt
(d) m/m-volt

ANSWER
Answer : (a)

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

3. X and Y plates of a CRO are connected to unequal voltages of equal frequency with phase shift of 90 degree. The Lissajous figure on the screen will be :

(a) Circle
(b) Straight line
(c) Ellipse
(d) Figure of eight

ANSWER
Answer : (a)

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

4. The colour of the spot on the screen of a CRO is a characteristic of :

(a) Electron gun in a CRT
(b) The type of the waveform being observed
(c) The coating material on the screen
(d) The velocity of the electrons striking the screen

ANSWER
Answer : (c)

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

5. The Lissajous pattern obtained on a CRO is used to determine :

(a) Amplitude of applied signal
(b) Current in a circuit
(c) Phase shift and frequency
(d) Distortion in a system

ANSWER
Answer : (c)

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

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