Multimeter measures
(a) Voltage
(b) Current
(c) Resistance
(d) All of the above
Voltmeter is connected to measure voltage in the circuit
(a) in parallel
(b) in series
(c) either in parallel or series
(d) None of the above
Which device is used to convert a.c current into d.c current ?
(a) Rectifier
(b) Amplifier
(c) inverter
(d) None of the above
Zero resistance is on the multimeter scale
(a) only left side
(b) only right side
(c) centre position
(d) anywhere
Input impedance of the multimeter should be _________ than circuit impedance, for voltage measurement.
(a) should be higher
(b) should be lesser
(c) should be equal
(d) None fo the above
Input impedance of the electronic voltmeter is ________than the electrical voltmeter.
(a) very much hgih
(b) very much low
(c) is equal to
(d) do not know
An operational amplifier have the input
(a) an inverting input
(b) non-inverting input
(c) an inverting input and a non-inverting input
(d) None of the above
In a ramp type digital voltmeter using gated clock pulses occurs
(a) Voltage to time conversion
(b) Time to voltage conversion
(c) Voltage to current conversion
(d) Current to voltage conversion
In a integrating type digital voltmeter the integrator made by operational amplifier have the feedback component as
(a) Resistance
(b) Capacitor
(c) Inductor
(d) Oscillator
The source of emission of electrons in a CRT is
(a) oxide coated cathode
(b) diode
(c) acclerating anode
(d) post accelerating anode
A.C.R.O can used to measure
(a) A.C voltage and current
(b) D.C voltage and current
(c) Phase angle and frequency
(d) All of the above
Deflection sensitivity of a C.R.T is
(a) deflection/defectrion voltage
(b) deflection/ accelerating voltage
(c) deflection/ time
(d) deflection/ frequency
The inner surface of the CRT is coated
(a) with phosphor
(b) with calcium
(c) with sodium
(d) with nickel
How many kinds of delay line are available in CRO ?
(a) one kind
(b) two kinds
(c) Three kinds
(d) Four kinds
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