ELECTRONICS AND COMMUNICAN ENGINEERING (ECE) 220 OBJECTIVE QUESTIONS AND ANSWER IN ONE PDF
1. Of the following bridges the one which can be used for the measurement of dielectric loss of a capacitor is
a.) Schering bridge
b.) Heaviside campbell equal ratio voltage
c.) Owen bridge
d.) Anderson bridge
Ans. a.) Schering bridge
2. LBDT is uses as a ?
a) . Displacement transducer
b.) Pressure transducer
c.) Temperature
d.) Any of the above
Ans. a). Displacement transducer
3. Polarization is a measure of -
a.) Dielectric constant per unit volume. b. ) Voltage gradient to produce electrical breakdown
c.) Product of charge and distance
d.) Excess charge density
Ans. a.) Dielectric constant per unit volume
4. Compared to the inductive type of transducer, capacitive transducer is superior for the measurement of displacement because of -
a.) Absence of non-linearity
b.) High frequency response
c.) Small size
d.) High accuracy
Ans. b.) High frequency response
5. An incremental model of a solid state device is one which represents the ?
a.) ac property of the device at the desired operating point
b. ) dc property of the device at all operating points
c.) Complete ac and dc behaviour of the device at all operating points
d.) ac property of the device at all operating points.
Ans. a.) ac property of the device at the desired operating point
1. Of the following bridges the one which can be used for the measurement of dielectric loss of a capacitor is
a.) Schering bridge
b.) Heaviside campbell equal ratio voltage
c.) Owen bridge
d.) Anderson bridge
Ans. a.) Schering bridge
2. LBDT is uses as a ?
a) . Displacement transducer
b.) Pressure transducer
c.) Temperature
d.) Any of the above
Ans. a). Displacement transducer
3. Polarization is a measure of -
a.) Dielectric constant per unit volume. b. ) Voltage gradient to produce electrical breakdown
c.) Product of charge and distance
d.) Excess charge density
Ans. a.) Dielectric constant per unit volume
4. Compared to the inductive type of transducer, capacitive transducer is superior for the measurement of displacement because of -
a.) Absence of non-linearity
b.) High frequency response
c.) Small size
d.) High accuracy
Ans. b.) High frequency response
5. An incremental model of a solid state device is one which represents the ?
a.) ac property of the device at the desired operating point
b. ) dc property of the device at all operating points
c.) Complete ac and dc behaviour of the device at all operating points
d.) ac property of the device at all operating points.
Ans. a.) ac property of the device at the desired operating point
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