UPSC STUDYMATERIALS
  • HOME
    • OVERVIEW OF UPSC
    • UPSC PRELIMINARY EXAM SYLLABUS
    • UPSC MAIN EXAM SYLLABUS >
      • UPSC EXAM SYLLABUS- AGRICULTURE
      • UPSC EXAM SYLLABUS- ANIMAL HUSBANDRY AND VETERINARY SCIENCE
      • UPSC EXAM SYLLABUS- ANTHROPOLOGY
      • UPSC EXAM SYLLABUS- BOTANY
      • UPSC EXAM SYLLABUS- CHEMISTRY
      • UPSC EXAM SYLLABUS- GEOLOGY
      • UPSC EXAM SYLLABUS- CIVIL ENGINEERING
      • UPSC EXAM SYLLABUS- GEOGRAPHY
      • UPSC EXAM SYLLABUS- COMMERCE AND ACCOUNTING
      • UPSC EXAM SYLLABUS- ECONOMICS
      • UPSC EXAM SYLLABUS- ELECTRICAL ENGINEERING
      • UPSC EXAM SYLLABUS- HISTORY
      • UPSC EXAM SYLLABUS- LAW
      • UPSC EXAM- FREQUENTLY ASKED QUESTIONS (FAQs)
      • UPSC EXAM SYLLABUS- MANAGEMENT
      • UPSC EXAM SYLLABUS- MATHEMATICS
      • UPSC EXAM SYLLABUS- MECHANICAL ENGINEERING
      • UPSC EXAM SYLLABUS- MEDICAL SCIENCE
      • UPSC EXAM SYLLABUS- PHILOSOPHY
      • UPSC EXAM SYLLABUS- PHYSICS
      • UPSC EXAM SYLLABUS- POLITICAL SCIENCE AND INTERNATIONAL RELATIONS
      • UPSC EXAM SYLLABUS- PSYCHOLOGY
      • UPSC EXAM SYLLABUS- PUBLIC ADMINISTRATION
      • UPSC EXAM SYLLABUS- SOCIOLOGY
      • UPSC EXAM SYLLABUS- STATISTICS
      • UPSC EXAM SYLLABUS- ZOOLOGY
    • THE COMBINED GEOSCIENTIST AND GEOLOGIST EXAMINATION SYLLABUS
    • COMBINED MEDICAL SERVICES EXAMINATION SYLLABUS
    • JOINT ENTRANCE EXAMINATION
    • OPTIONAL SUBJECTS OF UPSC EXAM TOPPERS
    • UPSC- EXAM CENTRES
    • UPSC EXAM TIMETABLE/ PATTERN
    • UPSC EXAM BEGINNERS TIPS
    • COMBINED GRADUATE LEVEL EXAMINATION- SSC
    • OVERVIEW OF GATE EXAM
    • UPSC INDIAN FOREST SERVICE >
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- AGRICULTURE
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- AGRICULTURAL ENGINEERING
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- ANIMAL HUSBANDRY AND VETERINARY SCIENCE
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- BOTANY
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- CHEMISTRY
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- CHEMICAL ENGINEERING
      • GEN. STUDIES- INDIA PAGE 5
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- CIVIL ENGINEERING
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- FORESTRY
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- GEOLOGY
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- MATHEMATICS
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- MECHANICAL ENGINEERING
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- PHYSICS
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- STATISTICS
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- ZOOLOGY
  • SITEMAP
  • OPTIONAL
    • ACCOUNTANCY
    • AGRICULTURE
    • ANIMAL HUSBANDARY AND VETERINARY SCIENCE
    • ANTHROPOLOGY
    • GEOLOGY
    • LAW
    • MANAGEMENT
    • MATHEMATICS
    • PHILOSOPHY
    • POLITICAL SCIENCE AND INTERNATIONAL RELATIONS
    • PSYCHOLOGY
    • PUBLIC ADMINISTRATION
    • SOCIOLOGY
  • GENERAL MEDICINE
  • ENGINEERING
    • PRINTING TECHNOLOGY
  • EARN MONEY ONLINE
  • COMPUTER
  • OVERVIEW OF UGC NET
    • ADULT EDUCATION
    • ARAB CULTURE AND ISLAMIC STUDIES
    • ARCHAEOLOGY
    • COMPARATIVE LITERATURE
    • COMPARATIVE STUDY OF RELIGIONS
    • CRIMINOLOGY
    • DANCE
    • DEFENCE AND STRATEGIC STUDIES
    • DRAMA
    • FOLK LITERATURE
    • HUMAN RIGHTS AND DUTIES
    • INDIAN CULTURE
    • INTERNATIONAL AND AREA STUDIES
    • LINGUISTICS
    • MUSEOLOGY AND CONSERVATION
    • PERFORMING ARTS- DANCE/DRAMA/THEATRE
    • POPULATION STUDIES
    • TRIBAL AND REGIONAL LANGUAGE
    • VISUAL ARTS
    • WOMEN STUDIES
  • GEN SUBJECTS
    • ARITHMETIC AND MENTAL ABILITY
    • BOTANY
    • BIOLOGY
    • ECONOMICS
    • GENERAL ENGLISH
    • PHYSICS
    • GENERAL KNOWLEDGE
    • INDIAN HISTORY
    • INDIAN GEOGRAPHY
    • ZOOLOGY
  • GEN. STUDIES
  • GENERAL ARTICLES
  • OTHER SUBJECTS
    • AYURVEDA
    • BUSINESS
    • COOPERATION
    • DAIRY SCIENCE AND TECHNOLOGY
    • FISHERIES SCIENCE
    • FORENSIC MEDICINE
    • FORENSIC SCIENCE
    • FORESTRY
    • GENERAL MICROBIOLOGY
    • HOMEOPATHY
    • HOME SCIENCE
    • LABOUR WELFARE
    • LIBRARY SCIENCE
    • MASS COMMUNICATION AND JOURNALISM
    • NUTRITION
    • OFFICE SECRETARYSHIP
    • PERCUSSION
    • SERICULTURE
    • SIDDHA
    • TAILORING
    • TEACHING AND RESEARCH APTITUDE
    • TOURISM ADMINISTRATION AND MANAGEMENT
    • TYPEWRITING
    • UNANI
  • STATES/ UT
  • LANGUAGES
  • BRILLIANCE TUITION CENTRE
    • COMPLETED MATH WORKSHEETS
  • TEAM MEMBERS
  • MEMBERSHIP
  • SHOP ONLINE
  • GROUP STUDY
  • TERMS OF USE
  • PRIVACY POLICY
  • ABOUT US
  • CONTACT US

​ELECTRONICS ENGINEERING

ELECTRONICS ENGINEERING MCQs

1:-A BCD-to-Decimal decoder converts
 A:-BCD code to decimal digits
 B:-Binary code to decimal digits
 C:-BCD code to binary code
 D:-BCD code to grey code
Ans: B

2:-The number of flip-flops required to construct a decade counter is ___________.
 A:-2
 B:-3
 C:-4
 D:-6
Ans: C

3:-The number of NOR gates required to construct R-S flip-flop is ____________.
 A:-1
 B:-2
 C:-3
 D:-4
Ans: B
​
4:-The basic building block of a counter is ___________.
 A:-AND gate
 B:-OR gate
 C:-NAND gate
 D:-Flip-flops
Ans: D

5:-ROM is a non-volatile memory. The name of volatile memory is _______________.
 A:-PROM
 B:-SRAM
 C:-EPROM
 D:-RAM
Ans: D

6:-Modern data storage device named 'pen drive' has a capacity of storing 16 GB data, what does it mean
 A:-16 × `"10^9"` ` `bytes
 B:-16 × `"10^6"` bytes
 C:-16 × `"10^9"` bits
 D:-16 × `"10^6"` bits
Ans: A

7:-An OP-AMP is designed to amplify
 A:-AC voltage
 B:-DC voltage
 C:-Both AC and DC voltage
 D:-Pulse signals only
Ans: C

8:-DC operating voltage of IC 555 is
 A:-+5 to +18 V
 B:-+18 to +36 V
 C:-+5 to +28 V
 D:-+18 to +48 V
Ans: A

9:-Approximately what is the frequency limit of the optical fibre
 A:-20 GHz
 B:-1 MHz
 C:-100 MHz
 D:-40 GHz
Ans: D

10:-The higher the index number of a fibre optic cable _____________.
 A:-The higher the speed of light
 B:-The lower the speed of light
 C:-Has no effect on the speed of light
 D:-The shorter the wavelength propagation
Ans: B

11:-The three major groups in the optical system are
 A:-The components, the data rate and response time
 B:-The source, the link and the receiver
 C:-The transmitter, the cable and the receiver
 D:-The source, the link and the detector
Ans: C
12:-High speed switching can be obtained using a ____________.
 A:-Power IGBT
 B:-PNP transistor
 C:-Diode
 D:-Vibrator
Ans: A

13:-Power MOSFET and power IGBT are __________
 A:-One and the same device
 B:-Quite different devices
 C:-Similar semiconductor devices
 D:-Replaceable devices
Ans: C

14:-Which one of the following semiconductor device may be used as a light sensor?
 A:-Photo diode
 B:-Photo transistor
 C:-LDR
 D:-Any one of the above
Ans: D

15:-The material used for making optic-fibre cable in general is ___________.
 A:-Copper
 B:-Transparent plastic
 C:-Aluminium
 D:-Steel
Ans: B

16:-Which one of the following IC contains NOT gates ___________?
 A:-IC 7400
 B:-IC 7404
 C:-IC 7402
 D:-IC 7408
Ans: B

17:-Which of the following gates gives a high output with all its inputs high
 A:-NOT
 B:-NOR
 C:-OR
 D:-X-OR
Ans: C

18:-The logic gate which has 'high' output when its inputs are different is ___________.
 A:-NOR
 B:-EX-OR
 C:-NAND
 D:-EX-NOR
Ans: B

19:-The biggest advantage of ECL is ___________.
 A:-High fan out
 B:-High speed
 C:-Low power consumption
 D:-High density
Ans: B
​

20:-The term CMOS stands for
 A:-Capacitance Metal Oxide Semiconductor
 B:-Complimentary Metal Oxide Semiconductor
 C:-Charged Metal Oxide Semiconductor
 D:-Copper Metal Oxide Semiconductor
Ans: B
​21:-Silicon has an atomic number of 14, this means the atom has 14 ____________.
 A:-Neutrons
 B:-Electrons
 C:-Protons and neutrons combined together
 D:-Valence electrons
Ans: B

22:-The most commonly used electrical conductor is ___________.
 A:-Lead
 B:-Tin
 C:-Brass
 D:-Copper
Ans: D

23:-The opposition offered to the movement of electrons/current flow is known as __________.
 A:-Electric resistance
 B:-Current
 C:-Voltage
 D:-None of these
Ans: A

24:-In a meter one main scale division is 5 volts, and it is divided into 10 small scale divisions. The meter can measure a minimum voltage of _____________.
 A:-5 V
 B:-0.5 V
 C:-0.1 V
 D:-1 V
Ans: B

25:-As the field intensity (H) in the core is increased, the flux density (B) ___________.
 A:-Increases
 B:-Decreases
 C:-Becomes zero
 D:-Does not change
Ans: A

26:-Material which can be strongly magnetised are known as ____________ materials.
 A:-Paramagnetic
 B:-Diamagnetic
 C:-Ferro magnetic
 D:-Pure magnet
Ans: C

27:-What material is used for making armature core?
 A:-Silicon steel
 B:-Aluminium
 C:-Copper
 D:-Mild steel
Ans: A

28:-The speed of a universal motor ____________.
 A:-Remains constant to the applied load
 B:-Is directly proportional to the applied load
 C:-Is inversely proportional to the applied load
 D:-Becomes zero when load is applied
Ans: C

29:-The basic unit of inductance is ___________.
 A:-Farad
 B:-Webber
 C:-Henry
 D:-Hertz
Ans: C

30:-Inductive reactance of a coil is directly proportional to the ___________.
 A:-Alternating current following through it
 B:-Induced emf in it
 C:-Frequency of AC flowing through it
 D:-All the parameters mentioned at A, B and C
Ans: D

31:-Two capacitors C1 = 1 nf and C2 = 10 nf, are connected in series and applied to the battery voltage V = 11 V. What are the voltages across the capacitors?
 A:-VC1 = 5.5 V; VC2 = 5.5 V
 B:-VC1 = 10 V; VC2 = 1 V
 C:-VC1 = 1 V; VC2 = 10 V
 D:-VC1 = 0 V; VC2 = 11 V
Ans: B

32:-Mutual induction is obtained by placing two current carrying coils ___________.
 A:-Side by side close to each other
 B:-Perpendicular to each other
 C:-Far away from each other
 D:-Both (1) and (2) above
Ans: A

33:-The fundamental unit of measurement of resistance is ____________.
 A:-Ohm
 B:-Milli ohm
 C:-Kilo ohm
 D:-Mega ohm
Ans: A

34:-For measuring unknown resistance, initially choose ____________.
 A:-The highest ohms range
 B:-The lowest ohms range
 C:-Any ohms range
 D:-R × 10 ohms range
Ans: A

35:-When three resistors R1, R2 and R3 are connected in series, the total resistance `"R_T" =`
 A:-R1 + R2 + R3
 B:-R1 × R2 × R3
 C:-1/R1 + 1/R2 + 1/R3
 D:-1/R1 × 1/R2 × 1/R3
Ans: A

36:-Magnetic lines are concentrated at ___________.
 A:-At the centre of magnet
 B:-Any one end of the magnet
 C:-Along the magnet uniformly
 D:-Both the ends of the magnet
Ans: D

37:-Generation and distribution of AC power in India is normally ___________.
 A:-Single phase
 B:-3 phase
 C:-2 phase
 D:-Either 2 phase or 3 phase
Ans: B

38:-The principle of operation of universal motor, similar to __________.
 A:-DC shunt motor
 B:-DC series motor
 C:-DC short-shunt compound motor
 D:-DC long-shunt compound motor
Ans: B

39:-The flux density of a coil can be increased by inserting a __________.
 A:-Brass core
 B:-Iron core
 C:-Rubber core
 D:-Plastic core
Ans: B

40:-The frequency of induced emf in an AC generator is given by ___________.
 A:-120/PN
 B:-120P/N
 C:-PN/120
 D:-120N/P
Ans: C

41:-A charged capacitor acts like a ____________.
 A:-Temporary voltage source
 B:-Magnetic energy source
 C:-Constant current source
 D:-Switch
Ans: A

42:-The relation between frequency of an AC signal (F) and time period (T) is __________.
 A:-`"F=T^2"`
 B:-F = 2T
 C:-F = 1/T
 D:-F = 1/2T
Ans: C

43:-A motor converts electrical energy into _____________.
 A:-Magnetic energy
 B:-Mechanical energy
 C:-Potential energy
 D:-Chemical energy
Ans: B

44:-When 2 inductors are in parallel, the effective value of inductance is given by LT = __________.
 A:-L1 + L2
 B:-L1 × L2/L1 + L2
 C:-L1 × L2
 D:-L1 + L2/L1 × L2
Ans: B

45:-A transformer is an electrical device used to __________.
 A:-change the frequency of applied AC voltage
 B:-transfer electrical energy from one circuit to another without any direct electrical connection
 C:-convert applied DC into AC
 D:-convert applied AC into DC
Ans: B

46:-A 3-phase transformer has ____________.
 A:-1 primary and 3 secondary windings
 B:-3 primary and 1 secondary windings
 C:-3 primary and 3 secondary windings
 D:-3 primary and 6 secondary windings
Ans: C

47:-A transformer has 800 turns in its primary winding and 200 in its secondary what is the primary voltage, if the secondary voltage is 40 V? Assume transformer losses as negligible?
 A:-8 V
 B:-16 V
 C:-40 V
 D:-160 V
Ans: D

48:-Efficiency of a transformer is the ratio of ___________.
 A:-Output power to input power
 B:-Input power to output power
 C:-Input current to output current
 D:-Output current to input current
Ans: A

49:-The basic unit of capacitance is ____________.
 A:-Ohm
 B:-Farad
 C:-Henry
 D:-Mho
Ans: B

50:-The relationship between charge (Q), voltage (V) and capacitance (C) of a capacitor is ____________.
 A:-C = Q/V
 B:-C = QV
 C:-`"C=Q^2 V"`
 D:-C = V/Q
Ans: A

51:-Identify the instrument which is NOT used for measurement of capacitance _________.
 A:-Digital capacitance meter
 B:-AC bridge
 C:-RLC meter
 D:-Kelvin bridge
Ans: D
52:-The capacitive reactance Xc is given by __________.
 A:-2`Pi`FC
 B:-1/2`Pi`FC
 C:-2`Pi`/FC
 D:-FC/2`Pi`
Ans: B

53:-Current flowing through a capacitor is given by ___________.
 A:-`"V.X_c"`
 B:-`"V^2/X_c"`
 C:-`"V/X_c"`
 D:-`"V^2.C"`
Ans: C

54:-A semi conductor in its pure form is referred to as __________.
 A:-Intrinsic semiconductor
 B:-Extrinsic semiconductor
 C:-Crystal semiconductor
 D:-Doped semiconductor
Ans: A

55:-The process of adding impurities to a pure semiconductor __________.
 A:-Diffusion
 B:-Forming
 C:-Etching
 D:-Doping
Ans: D

56:-The potential difference across a PN junction is referred to as _________.
 A:-Potential difference
 B:-Barrier potential
 C:-Reverse potential
 D:-PN potential
Ans: B

57:-When a germanium diode is connected in forward biased mode the voltage across the diode will be ___________.
 A:-0.7 V
 B:-0.3 V
 C:-Is equal to applied voltage
 D:-0 V
Ans: B

58:-When a diode is tested using an ohm meter. It indicates the low resistance in both direction. The condition of
the diode is ___________.
 A:-Open
 B:-Short
 C:-Leaky
 D:-Good
Ans: B

59:-A forward biased diode starts conducting when the applied voltage reaches certain voltage known as
____________.
 A:-End-in voltage
 B:-Barrier voltage
 C:-Peak voltage
 D:-Saturation voltage
Ans: B

60:-What value of the voltage is obtained directly from the wave form shown on a C.R.O when connected across the secondary of a transformer?
 A:-Peak value
 B:-R.M.S. value
 C:-Peak-to-peak value
 D:-Average value
Ans: C

61:-The main component used in a ripple filter circuit is the ___________.
 A:-Capacitor
 B:-Resistor
 C:-Diode
 D:-Transformer
Ans: A

62:-The maximum forward current of an LED is about ____________.
 A:-10 mA
 B:-50 mA
 C:-.5 A
 D:-1.0 A
Ans: B

63:-Which colour LED has the lowest forward voltage drop?
 A:-Red
 B:-Orange
 C:-Green
 D:-Yellow
Ans: A

64:-The time taken for etching PCB is in the range of ___________.
 A:-5 to 20 minutes
 B:-20 to 40 minutes
 C:-1 to 2 hours
 D:-More than 2 hour
Ans: A

65:-The PCB side on which components are mounted is referred to as ___________.
 A:-Copper side
 B:-Component side
 C:-Solder side
 D:-Track side
Ans: B

66:-The chemical used for removing copper from copper clad boards is called __________.
 A:-Thinner
 B:-Remover
 C:-Eraser
 D:-Etchant
Ans: D

67:-In amplifiers, transistors are used for ___________.
 A:-Enlarging small electronic signals
 B:-Switching purposes
 C:-Reducing electronic signals
 D:-Both the purposes mentioned in (1) and (2)
Ans: A

68:-A transistor can be thought of as two PN junction diodes connected as ____________.
 A:-PNPN
 B:-PNNP
 C:-NPNP
 D:-NNPP
Ans: B

69:-The advantage of transistors over vacuum tubes is ____________.
 A:-Very small size
 B:-Minimum power loss in the form of heat
 C:-Low operating voltage
 D:-All the three, mentioned above
Ans: D

70:-NPN transistors are preferred to PNP transistors for ___________.
 A:-Higher switching speed
 B:-Easy use in +ve supply rail
 C:-A wide range of operating temperature
 D:-The reasons mentioned in (1) and (2)
Ans: A

71:-Small signal amplifiers are also known as ___________.
 A:-Large power amplifiers
 B:-Medium power amplifiers
 C:-Low power amplifiers
 D:-Both medium power and low power amplifiers
Ans: C

72:-In transistors, the width of the collector layer is __________.
 A:-Much less than the base region
 B:-Much wider than the base region
 C:-Much less than the emitter region
 D:-Same as that of the base region
Ans: B

73:-The resistance measured by a multimeter between the anode and the cathode of good SCR should be ____________.
 A:-Low
 B:-Medium
 C:-High
 D:-Infinity
Ans: D

74:-In speed control circuits for DC motors using two SCR's _____________.
 A:-Each SCR conducts at any time
 B:-One SCR conducts in positive half cycle and the other in negative half cycle
 C:-Both SCR's conduct at a time
 D:-Only one SCR conducts and the other does not conduct
Ans: B

75:-Most common application of UJT is ____________.
 A:-Schmitt trigger
 B:-Bistable multivibrator
 C:-Relaxation oscillator
 D:-Timer
Ans: C

76:-DIAC is basically ____________.
 A:-A PNP/NPN transistor
 B:-A PNP/NPN transistor with no base connection
 C:-A 4 layered NPNP device
 D:-None of the above
Ans: B

77:-The speed of an AC motor can be controlled by using ____________.
 A:-SCR
 B:-TRIAC
 C:-DIAC with SCR
 D:-DIAC with TRIAC
Ans: D

78:-A power MOSFET is capable to handle current upto ___________.
 A:-1 A
 B:-50 A
 C:-10 A
 D:-100 A
Ans: D

79:-An IGBT is a hybrid form of ____________.
 A:-A diode and a transistor
 B:-A transistor and SCR
 C:-A bipolar transistor and a MOSFET
 D:-A FET and a MOSFET
Ans: C
​
80:-MOSFET's are used in ______________.
 A:-Inverters
 B:-SMPS
 C:-UPS
 D:-All the above
Ans: D
81:-LED
 A:-is usually made from Ge
 B:-Uses a reverse biased junction
 C:-Emits light due to recombination of holes and electrons
 D:-Gives light output which increases with increase in temperature
Ans: C

82:-SPST, SPDT, DPDT and DPST are
 A:-Solid state relays
 B:-Input-output interface modules
 C:-Solid state switches
 D:-Electrical relay contact types
Ans: D

83:-The 8 bit micro controller has
 A:-Data bus of 8 bits
 B:-Address bus of 8 bits
 C:-8K ROM
 D:-Both data and address bus 8 bits
Ans: A

84:-The additional features of 3G that are not available with 2G are
 i) Mobile TV
 ii) MMS
iii) Video transfers
iv) GPS
 A:-i, ii, iii
 B:-i, iii, iv
 C:-ii, iii, iv
 D:-i, ii, iii, iv
Ans: B

85:-5Ah in an UPS battery specification means
 A:-5A for 1 hour
 B:-1A for 5 hours
 C:-The output power is 5 watts
 D:-It requires 5 hours to charge fully
Ans: A

86:-The 43-grade cement means that the compressive strength of the cement mortar cube after 28 days is
 A:-43 GPa
 B:-43 Pa
 C:-43 MPa
 D:-None of the above
Ans: C

87:-The process of establishing intermediate points on a survey line joining the end points is called
 A:-Chaining
 B:-Ranging
 C:-Pacing
 D:-Surveying
Ans: B

88:-Choice of type of foundation depends on
 A:-Soil type
 B:-Super imposed load
 C:-Material used
 D:-All the above
Ans: D

89:-The following one is an example of electronic distance meter
 A:-Total station
 B:-Distomat
 C:-Electronic theodolite
 D:-Tacheometer
Ans: B

90:-The manufacturing process of concrete is in the following order
 A:-Proportioning, batching, mixing, transporting, placing, compacting and curing
 B:-Proportioning, mixing, batching, transporting, placing, compacting and curing
 C:-Proportioning, mixing, batching, transporting, placing, curing and compacting
 D:-Proportioning, transporting, mixing, batching, placing, compacting and curing
Ans: A

91:-In a four stroke cycle engine, the cam shaft completes
 A:-Half the revolution of crank shaft
 B:-Twice the revolutions of crank shaft
 C:-The same revolutions as crank shaft
 D:-Revolutions irrespective of crank shaft revolutions
Ans: A

92:-The thermal efficiency of a four stroke petrol engine as compared to two stroke petrol engine is
 A:-Less
 B:-More
 C:-Same for same speed
 D:-Same for same compression ratio
Ans: B

93:-While starting the engine, the pinion gear of the starter motor meshes with
 A:-Fly wheel ring gear
 B:-Gears in gear box
 C:-Gears in differential
 D:-None of these
Ans: A

94:-Rankine cycle consists of
 A:-Two isothermal processes and two constant pressure processes
 B:-Two isothermal processes and two constant volume processes
 C:-Two isentropic processes and two constant volume processes
 D:-Two isentropic processes and two constant pressure processes
Ans: D

95:-The correct order of the path of flue gas is
 A:-superheater, economiser, precipitator, air preheater
 B:-superheater, precipitator, economiser, air preheater
 C:-superheater, economiser, air heater, precipitator
 D:-superheater, air preheater, economiser, precipitator
Ans: C

96:-A DC source is supplying two resistors connected in parallel. If `R_(1)` = `2R_(2)`, determine the relation between the power dissipated in them
 A:-`P_(1)` =`0.5 P_(2)`
 B:-`P_(1)` =`P_(2)`
 C:-`P_(1)` =`2 P_(2)`
 D:-`P_(1)` =` ` `4 P_(2)`
Ans: A

97:-If an ac voltage source of magnitude 100`sqrt(2)` sinwt is causing a current flow of 10 sin (wt-45) A, determine the load.
 A:-10+j10Ω
 B:-10-j10Ω
 C:-10`sqrt(2)` +j10`sqrt(2)`Ω
 D:-10`sqrt(2)` -j10`sqrt(2)`Ω
Ans: A

98:-Which one among the following is not an over voltage protective system ?
 A:-Lightning arrester
 B:-Arcing horn
 C:-Surge arrestor
 D:-Earth-leakage circuit breaker
Ans: D

99:-If a dielectric slab of thickness 't' relative permeability of 2 is inserted between the parallel plates of an air capacitor, the capacitance of the new arrangement will
 A:-Not change
 B:-Decrease
 C:-Increase
 D:-Become zero
Ans: C

100:-Which one among the following is not a transmission voltage in Kerala ?
 A:-33 kV
 B:-55 kV
 C:-220 kV
 D:-400 kV
Ans: B
​
  • Electronics Engineering
  • Electronics Engineering- Page 1
  • Electronics Engineering- Page 2
  • Electronics Engineering- Page 3
  • Electronics Engineering- Page 4
  • Electronics and Telecommunication
  • Electronics and Telecommunication- Page 1
  • Electronics and Communication Page-1
  • Electronics and Communication Page-2
  • Electronics and Communication Page-3
  • Electronic Science
  • Electronic Science- Page 1
  • Electronic Science- Page 2
  • Electronic Science- Page 3
  • Electronic Science- Page 4
  • Electronic Science- Page 5​

UPSC Study Materials
​MCQs for Competitive Examinations

About Us
Terms of Use
​Privacy Policy
​
Follow Us
Facebook
Twitter
​Google Plus
Youtube​
Share this Page
Facebook
Twitter
​Google+
​Pinterest
​Linkedin
© upscstudymaterials.com   
​ALL RIGHTS RESERVED.


  • HOME
    • OVERVIEW OF UPSC
    • UPSC PRELIMINARY EXAM SYLLABUS
    • UPSC MAIN EXAM SYLLABUS >
      • UPSC EXAM SYLLABUS- AGRICULTURE
      • UPSC EXAM SYLLABUS- ANIMAL HUSBANDRY AND VETERINARY SCIENCE
      • UPSC EXAM SYLLABUS- ANTHROPOLOGY
      • UPSC EXAM SYLLABUS- BOTANY
      • UPSC EXAM SYLLABUS- CHEMISTRY
      • UPSC EXAM SYLLABUS- GEOLOGY
      • UPSC EXAM SYLLABUS- CIVIL ENGINEERING
      • UPSC EXAM SYLLABUS- GEOGRAPHY
      • UPSC EXAM SYLLABUS- COMMERCE AND ACCOUNTING
      • UPSC EXAM SYLLABUS- ECONOMICS
      • UPSC EXAM SYLLABUS- ELECTRICAL ENGINEERING
      • UPSC EXAM SYLLABUS- HISTORY
      • UPSC EXAM SYLLABUS- LAW
      • UPSC EXAM- FREQUENTLY ASKED QUESTIONS (FAQs)
      • UPSC EXAM SYLLABUS- MANAGEMENT
      • UPSC EXAM SYLLABUS- MATHEMATICS
      • UPSC EXAM SYLLABUS- MECHANICAL ENGINEERING
      • UPSC EXAM SYLLABUS- MEDICAL SCIENCE
      • UPSC EXAM SYLLABUS- PHILOSOPHY
      • UPSC EXAM SYLLABUS- PHYSICS
      • UPSC EXAM SYLLABUS- POLITICAL SCIENCE AND INTERNATIONAL RELATIONS
      • UPSC EXAM SYLLABUS- PSYCHOLOGY
      • UPSC EXAM SYLLABUS- PUBLIC ADMINISTRATION
      • UPSC EXAM SYLLABUS- SOCIOLOGY
      • UPSC EXAM SYLLABUS- STATISTICS
      • UPSC EXAM SYLLABUS- ZOOLOGY
    • THE COMBINED GEOSCIENTIST AND GEOLOGIST EXAMINATION SYLLABUS
    • COMBINED MEDICAL SERVICES EXAMINATION SYLLABUS
    • JOINT ENTRANCE EXAMINATION
    • OPTIONAL SUBJECTS OF UPSC EXAM TOPPERS
    • UPSC- EXAM CENTRES
    • UPSC EXAM TIMETABLE/ PATTERN
    • UPSC EXAM BEGINNERS TIPS
    • COMBINED GRADUATE LEVEL EXAMINATION- SSC
    • OVERVIEW OF GATE EXAM
    • UPSC INDIAN FOREST SERVICE >
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- AGRICULTURE
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- AGRICULTURAL ENGINEERING
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- ANIMAL HUSBANDRY AND VETERINARY SCIENCE
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- BOTANY
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- CHEMISTRY
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- CHEMICAL ENGINEERING
      • GEN. STUDIES- INDIA PAGE 5
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- CIVIL ENGINEERING
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- FORESTRY
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- GEOLOGY
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- MATHEMATICS
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- MECHANICAL ENGINEERING
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- PHYSICS
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- STATISTICS
      • UPSC INDIAN FOREST SERVICE- SYLLABUS- ZOOLOGY
  • SITEMAP
  • OPTIONAL
    • ACCOUNTANCY
    • AGRICULTURE
    • ANIMAL HUSBANDARY AND VETERINARY SCIENCE
    • ANTHROPOLOGY
    • GEOLOGY
    • LAW
    • MANAGEMENT
    • MATHEMATICS
    • PHILOSOPHY
    • POLITICAL SCIENCE AND INTERNATIONAL RELATIONS
    • PSYCHOLOGY
    • PUBLIC ADMINISTRATION
    • SOCIOLOGY
  • GENERAL MEDICINE
  • ENGINEERING
    • PRINTING TECHNOLOGY
  • EARN MONEY ONLINE
  • COMPUTER
  • OVERVIEW OF UGC NET
    • ADULT EDUCATION
    • ARAB CULTURE AND ISLAMIC STUDIES
    • ARCHAEOLOGY
    • COMPARATIVE LITERATURE
    • COMPARATIVE STUDY OF RELIGIONS
    • CRIMINOLOGY
    • DANCE
    • DEFENCE AND STRATEGIC STUDIES
    • DRAMA
    • FOLK LITERATURE
    • HUMAN RIGHTS AND DUTIES
    • INDIAN CULTURE
    • INTERNATIONAL AND AREA STUDIES
    • LINGUISTICS
    • MUSEOLOGY AND CONSERVATION
    • PERFORMING ARTS- DANCE/DRAMA/THEATRE
    • POPULATION STUDIES
    • TRIBAL AND REGIONAL LANGUAGE
    • VISUAL ARTS
    • WOMEN STUDIES
  • GEN SUBJECTS
    • ARITHMETIC AND MENTAL ABILITY
    • BOTANY
    • BIOLOGY
    • ECONOMICS
    • GENERAL ENGLISH
    • PHYSICS
    • GENERAL KNOWLEDGE
    • INDIAN HISTORY
    • INDIAN GEOGRAPHY
    • ZOOLOGY
  • GEN. STUDIES
  • GENERAL ARTICLES
  • OTHER SUBJECTS
    • AYURVEDA
    • BUSINESS
    • COOPERATION
    • DAIRY SCIENCE AND TECHNOLOGY
    • FISHERIES SCIENCE
    • FORENSIC MEDICINE
    • FORENSIC SCIENCE
    • FORESTRY
    • GENERAL MICROBIOLOGY
    • HOMEOPATHY
    • HOME SCIENCE
    • LABOUR WELFARE
    • LIBRARY SCIENCE
    • MASS COMMUNICATION AND JOURNALISM
    • NUTRITION
    • OFFICE SECRETARYSHIP
    • PERCUSSION
    • SERICULTURE
    • SIDDHA
    • TAILORING
    • TEACHING AND RESEARCH APTITUDE
    • TOURISM ADMINISTRATION AND MANAGEMENT
    • TYPEWRITING
    • UNANI
  • STATES/ UT
  • LANGUAGES
  • BRILLIANCE TUITION CENTRE
    • COMPLETED MATH WORKSHEETS
  • TEAM MEMBERS
  • MEMBERSHIP
  • SHOP ONLINE
  • GROUP STUDY
  • TERMS OF USE
  • PRIVACY POLICY
  • ABOUT US
  • CONTACT US