1) The full range of audibility in audio frequency oscillator is
a. 0 to 20 Hz
b. 20 Hz to 2 kHz
c. 20 Hz to 20 kHz
d. 20 Hz to 20 MHz
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Answer
Explanation
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ANSWER: 20 Hz to 20 kHz
Explanation:
No explanation is available for this question!
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2) A liquid crystal display requires
a. An AC drive
b. A DC drive
c. Both AC and DC drive
d. None of these
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Answer
Explanation
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ANSWER: An AC drive
Explanation:
No explanation is available for this question!
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3) In liquid crystal displays, the liquid crystal exhibits properties of
a. Liquid
b. Solids
c. Gases
d. Both (a) and (b)
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Answer
Explanation
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ANSWER: Both (a) and (b)
Explanation:
No explanation is available for this question!
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4) In light emitting diode, the available light emitting region is
a. Less than 2.5 mm
b. From 2.5 to 25 mm
c. Greater than 25 mm
d. Greater than 50 mm
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Answer
Explanation
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ANSWER: From 2.5 to 25 mm
Explanation:
No explanation is available for this question!
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5) Depending on whether the display is a numeric or alphanumeric, the segmental display is
a. 7 segmental
b. 14 segmental
c. 21 segmental
d. Either (a) or (b)
e. None of the above
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Answer
Explanation
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ANSWER: Either (a) or (b)
Explanation:
No explanation is available for this question!
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6) The measurements which can be simplified by using X - Y recorders is / are
a. Speed - torque characteristics of motors
b. Regulation curves of power supplies
c. Hysteresis curves
d. All of these
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Answer
Explanation
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ANSWER: All of these
Explanation:
No explanation is available for this question!
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7) X - Y recorder is the type of
a. Graphic recorders
b. Oscillographic recorders
c. Magnetic tape recorders
d. Digital recorders
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Answer
Explanation
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ANSWER: Graphic recorders
Explanation:
No explanation is available for this question!
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8) The different types of analog recorders are
a. Graphic recorders
b. Oscillographic recorders
c. Magnetic tape recorders
d. All of these
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Answer
Explanation
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ANSWER: All of these
Explanation:
No explanation is available for this question!
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