APPSC Electronics Engineering 14 March 2020 Question paper with Answers Key- APPSC conducted Lecturers in Government Polytechnic Colleges (Engineering and Non-Engineering) in A.P Technical Education Service exam on 14 March 2020 FN from 10.00 AM to 12.30 PM. Here we are providing some of the questions asked in APPSC Electronics Engineering Paper.
Which transistors is affected by the static electricity?
The scale of PMMC and moving iron (MI) instrument, respectively, is?
The term burden is referred of which type of a transformer?
The cut in voltage & forward voltage in silicon diode respectively are?
0.7 V. IV
Harmonics in three phase inverters maybe reduced with the help of?
Both passive and active filters
What is the multiplying factor of a wattmeter of 10A, 300 v having full scale deflection of 750 W?
APPSC Electronics Engineering 14 March 2020 Paper
………… having rotational motion element?
Inertia, damper, string
…….. is the correct input of controller?
…… is a Null type of Instrument?
……. Bridges have high quality factor?
……. Is the constant series of RC circuit?
The Bode plot slope is expressed as?
A semiconductor device TRIAC Contains?
Two SCRs connected in reverse parallel
In shunt generator, inter pole winding carries the?
In the current transformer, the burden is expressed in the form of?
APPSC Electronics Engineering 14 March 2020 Questions and answers
The basic principle of Q- meter is?
Two input terminals of an op-amp are branded as?
Inverting and non – inverting
Which is the magnitude of unit impulse function at T=0?
The unknown low resistance of metal measured by?
Kelvin’s double bridge
In the forward bias of a diode, its depletion region?
The class A communication is applicable in the case of?
DC circuits only
What is the internal resistance of voltmeter & ammeter respectively?
The nodes in a signal flow graph are represented by small?
Property holds good for the system y(t) = sin (4t) x(t)?
APPSC Electronics Engineering 14 March 2020 paper with Key
The realization of full adder circuit is done by using?
Two half adder & one or gate
The Nyquist stability criterian requires the polar plot of?
Open loop transfer function
Which unit is accepted for measurement of magnitude in blode plots?
The purpose of an enable input on a multiplexer chip is?
Activate the entire chip
How many PN junctions are used in UJT?
One PN junction
Which is the advantage of pole zero cancellation while designing controller?
The system order is reduced
The signal flow graph is appropriate for which systems?
Linear and invariant system
Energy can be measured by using which meter?
APPSC Electronics Engineering Answers Key 14 March 2020
In a wattmeter, the nature of pressure coil & of current soil, respectively is?
If both junctions of a BJT are forward-biased, then the BJT is in the …… region?
If the number of poles in a lap wound generator is doubled, then the generated emf?
A DC supply is applied to an inductive load. What is the nature of power factor?
When compared the N-channel MOSFET is better then the P- channel MOSFET because?
It has faster operation
In spite of the percentage of negative feedback, the control system still have a problem of instability due to?
Components used have non – linearity
Why are laminated conductors used in the current coil of electro dynamometer type wattmeter?
To reduce eddy current loss
Which converts an irregural shaped waveform into a regular shaped waveform?
In a signal flow graph, loop which doesn’t process any common node are known as …… Loops?
APPSC Electronics Engineering 14 March 2020 Full Question Paper & Key