Q.1
Photo conductive cell consists of a thin film of
Q.2
In a LVDT, the two secondary voltages
Q.3
Test electrode is also known as
Q.4
If 2% of the main current is to be passed through a galvanometer of resistance G, then resistance of the shunt required is ___________.
Q.5
To send 10% of the main current through a moving coil galvanometer of resistance 99 Ω the shunt required is ___________.
Q.6
The application of LVDT is
Q.7
Quartz and Rochelle salt belongs to ___________ of piezo-electric materials
Q.8
Strain gauge, LVDT and thermocouple are examples of
Q.9
Which of the following can be measured with the help of piezo electric crystal?
Q.10
Using mechanical chopper we cannot achieve high chopping rates due to their
Q.11
An ammeter has a resistance of G ohms and range of I amperes. The value of resistance required in parallel to convert it into an ammeter of range nI is ___________.
Q.12
A voltmeter has a resistance of G ohms and range V volts. The value of resistance required in series to convert it into voltmeter of range nV is ___________.
Q.13
_____________ is also known as halftone storage or mersh storage.
Q.14
The sensitivity of a multimeter is given in ___________.
Q.15
Silver chloride electrode is used as a reference electrode due to its
Q.16
In X-Y recorders, the self balancing potentiometers plot emf as a function of
Q.17
A voltmeter is connected in a ___________ with the circuit component across which potential difference is to be measured.
Q.18
The slewing speed of X-Y recorder is
Q.19
In strip chart recorders, the self balancing potentiometers plot emf as a function of
Q.20
When an ammeter is inserted in the circuit, the circuit current will ___________.
Q.21
The resistance of LDR ____________ when exposed to radiant energy.
Q.22
Fiber optic sensor can be used to sense ____________.
Q.23
Most commonly used indicator electrode is
Q.24
A recorder is said to have good frequency response when the sensitivity of the system is _________ for all frequencies present in the signal.
Q.25
To reduce common mode interference during recording of bio signals one can use __________.
Q.26
The change in resistance of a metal wire owing to strain is due to
S1: Change in dimension of wire expressed by factor (1-2µ)
S2: Change in resistance ?
Q.27
An ideal ammeter has ___________ resistance.
Q.28
Stress and strain curves are plotted using
Q.29
An inverse transducer is a device which converts
Q.30
The materil used to coat inside the face of CRT is ___________.
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