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All India SSC JE 2017 Electrical Engineering - Quiz 34
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Question 1
What is the dynamic range of a spectrum analyzer with a third order interrupt point of +25 dBm, and a noise level of (-) 85 dBm
Question 2
Consider the following statements in connection with deflection-type and null-type instruments:
1) Null-type instruments are more accurate than the deflection-type ones.
2) Null-type of instrument can be highly sensitive compared to a deflection-type instrument.
3) Under dynamic conditions, null-type instruments are less preferred to deflection type instruments.
4) Response is faster in null-type instruments as compared to deflection-type instruments.
Which of the above statements are correct?
1) Null-type instruments are more accurate than the deflection-type ones.
2) Null-type of instrument can be highly sensitive compared to a deflection-type instrument.
3) Under dynamic conditions, null-type instruments are less preferred to deflection type instruments.
4) Response is faster in null-type instruments as compared to deflection-type instruments.
Which of the above statements are correct?
Question 3
A voltmeter having a sensitivity of 
reads 100 V on its 150 V scale when connected across at resistor of unidentified specifications in series with a milliammeter. When the milliammeter reads 5 mA, the error due to the loading effect of the voltmeter will be nearly
reads 100 V on its 150 V scale when connected across at resistor of unidentified specifications in series with a milliammeter. When the milliammeter reads 5 mA, the error due to the loading effect of the voltmeter will be nearly Question 4
A PMMC instrument if connected directly to measure alternating current, it indicates
Question 5
Precision is composed of two characteristics, one is the number of significant figures to which a measurement may be made, the other is
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May 17ESE & GATE EE
