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Information and Communication Technology System Maintenance (ICTSM)
RESISTORS SOLDERING AND DESOLDERING
Set 3
Set 3
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Q7528
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Which material is used to make LDR for higher end requirements?
A
Cadmium sulphide
B
Lead selenide
C
Zinc sulphide
D
Copper sulphide
Q7529
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Which measuring instrument is used to check the working condition of a photo resistor (LDR)?
A
Oscilloscope
B
Voltmeter
C
Ohmmeter
D
Ammeter
Q7530
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What is the full form of LDR in resistors?
A
Light Depending Resistor
B
Least Depending Resistor
C
Limited Diode Resistor
D
Limit Depending Resistor
Q7531
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Which material is used to make photo resistors (LDR)?
A
Silicon
B
Germanium
C
Aluminium
D
Cadmium sulphide
Q7532
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What is the main application of photo resistor?
A
Voltage rectification
B
Demodulation purpose
C
Controls of street lighting systems
D
To generate oscillations
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