UPSC Senior Scientific Assistant Electronics Model Paper

If You are appearing in UPSC exam for Senior Scientific Assistant (Electronics) post in Directorate General of Aeronautical Quality Assurance (DGAQA), Department of Defence, Ministry of Defence which will be conducting on 29th Jan 2022 at various exam centers and searching the UPSC Senior Scientific Assistant (Electronics) Previous year papers. Then you are at right place. Here we are providing the UPsC Senior Scientific Assistant (Electronics) Model paper on Basic Electrical Engineering

Unit of specific resistance is
(a) Ohm
(b) Ohm/meter
(c) Ohm-meter
(d) Ohm – meter sq.

Equivalent resistance of two Resistances R1 and R2 when connected in parallel will be
(a) R1/R2
(b) R1+R2
(c) R1R2
(d) R1R2/(R1+R2)

Resistance of any conducting wire is
(a) Proportional to length
(b) Inversely proportional to length
(c) Equal to cross sectional area
(d) Proportional to cross sectional area

Unit of relative permeability is
(a) Farad/meter
(b) Farad
(c) Micro Farad
(d) None of these

Following type of capacitor is used in Fan
(a) Mica capacitor
(b) Paper capacitor
(c) Electrolytic capacitor
(d) Variable air capacitor

Reciprocal of resistance is known as
(a) Specific resistance
(b) Impedance
(c) Conductance
(d) Conductivity

Property of magnetic material which opposes to establish the flux in ti, is called _________
(a) Permeance
(b) Reluctance
(c) Magneto motive force
(d) Magnetic flux

Unit of magnetic flux density is
(a) Weber
(b) Tesla
(c) Weber – meter
(d) Henry/ metre

If frequency of alternating voltage is 50 Hz, then its time period is
(a) 2 sec
(b) 0.2 sec
(c) 2 minute
(d) 0.02 sec

Volt Ampere Reactive (VAR) is unit of
(a) True power
(b) Reactive power
(c) Apparent power
(d) Impedance

Active material of a lead acid battery are
(a) Lead peroxide
(b) Sponge lead
(c) Dilute sulphuric acid
(d) All of the above

The capacity of a battery is measured in
(a) Watt-hour
(b) Watt
(c) Ampere
(d) Ampere-hour