141. The first stage of vertical amplifier of a CRO is a
A. CE stage
B. CB stage
C. CS (FET) stage
D. CC stage
142. To minimize the loading of the circuit under test, the input impedance of a CRO must
A. be low
B. be high
C. be capacitive
D. match with the output impedance of the circuit
143. Transistor Voltmeter (TVM) has
A. very high ohms/volt rating
B. moderate ohms/volt rating
C. low ohms/volt rating
D. very low ohms/volt rating
144. Transistor voltmeter
A. can not measure ac voltage
B.can not be designed to measure resistance as well as voltage
C. can not measure high frequency voltage
D. can measure ac voltage
145. Transistor voltmeter is a highly sensitive instrument and can be used for the measurement of
A. energy
B. power
C. voltage and current
D. dc voltages only
146. A radio frequency (RF) probe in transistor voltmeter used for the measurement of
A. high resistances
B. low frequency voltages high frequency voltages
C. low resistances
D.
147. Transistor voltmeter is a
A. dynamometer type instrument
B. moving iron instrument
C. moving coil instrument
D. none of these
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