ITI Electronics Mechanic Questions and Answers

ITI Electronics Mechanic Questions and Answers – ITI Electronics Mechanic Previous Papers will contain the Objective type questions from various disciplines. Electronics Mechanic Previous Years Papers is the most important materials for exam preparation. Aspirants can refer the Electronics Mechanic Exam Old Papers to get an idea about the Test structure, subjects, scheme of examination.

ITI Electronics Mechanic Questions and Answers

The Electronics Mechanic Previous Papers links are enclosed at the bottom of this page. To give proper guidance for the applied contenders, we displaced the Electronics Mechanic Objective Question Papers with Answers. Therefore, make use of those papers for getting a high score in the examination. The updated ITI Electronics Mechanic Sample Papers are only for reference purpose.

MCQ Objective Questions and Answers for ITI Electronics Mechanic

1. The ripple factor of a hardware rectifier is ___________.
(A) 0.482
(B) 0.812
(C) 40.6
(D) 1.21

2. Which of the following is the fastest switching component?
(D) pentode

3. The final power amplifier in a radio transmitter station is usually ___________.
(A) Class A
(B) Class B
(C) Class C
(D) Class AB

4. In AM radio receiver. the oscillator frequency is ____________.
(A) incoming signal – 455 kHz
(B) incoming signal + 455 kHz
(C) equal to signal frequency
(D) equal to 455 kHz

5. The voltage gain of an emitter follower configuration can not be more than ___________.
(A) 1
(B) 0.5
(C) 10
(D) 100

6. The doping concentration in zener diode is ________________.
(A) very low
(B) very high
(C) Zero
(D) infinity

7. Binary number system uses __________ symbols.
(A) 16
(B) 10
(C) 3
(D) 2

8. Trimmer is a variable ______________.
(A) Resistor
(B) Inductor
(C) Capacitor
(D) none of these

9. The number of turns in secondary of a _____________ transformer is more than the primary
(A) step-down
(B) step-up
(C) 230 V to 6 V
(D) 11 kV to 230 V

10. ln a PN junction diode the barrier potential offers opposition to ___________.
(A) Minority charge carriers in both regions
(B) Majority charge carriers in both regions
(C) Holes in N region
(D) Electrons in P region

11. Negative feedback in amplifier ______ the stability of its voltage gain.
(A) increases
(B) decreases
(C) does not affect
(D) none of these

12. The time-base of a CRO is ____________ waveform.
(A) sawtooth
(B) Sine
(C) Square
(D) rectangular

13. Moving iron meter is usually used for measurement of _______________.
(A) AC and DC
(B) DC only
(C) AC only
(D) None of these

14. Integrator is a _______________ filter.
(A) high pass
(B) low pass
(C) hand pass
(D) band stop

15. OP-AMP may he used as:
(A) summing amplifier
(B) voltage comparator
(C) differentiator
(D) all the above

16. The timer IC 555 is available in __________ package.
(A) 3 pin
(B) 14 pin DIP
(C) 8 pin DIP
(D) 16 pin DIP

17. IGBT stands for ______________.
(A) Insulated Gate-Based Thyristor
(B) Insulated Gate Bipolar Thyristor
(C) Intrinsic Gate Bipolar Transistor
(D) Insulated Gate Bipolar Transistor

18. IC 7912 is _______________.
(A) Two input Quad XNOR gate
(B) Two input Quad XOR gate
(C) Negative voltage regulator for 12 V
(D) Positive voltage regulator for 12 V

19. In On-line UPS, the battery is connected ____________.
(A) All the time to the inverter
(B) During mains failure
(C) During charging time only
(D) All the above

20. The program counter in 8085 microprocessor is of ______________ bit.
(A) 8
(B) 16
(C) 4
(D) 32

Questions for ITI Jobs

Refrigeration and Air Conditioner Carpenter
Automobile Engineering Lineman
Printing Technology Wireman
Tool and Die Maker Electrician
Boiler Operator Electrical
Pump Operator Mechanic
Architectural Draftsman Surveyor
Draughtsman Civil Instrument Mechanic
Masonry Electronics Mechanic
Welder Information Technology
Fitter Computer Hardware
Turner Steel Fabricator
Plumber Electroplater

21. Which of the following is a bidirectional device?
(A) Zener diode
(D) Triac

22. Henry is the unit of __________.
(A) Capacitance
(B) Power
(C) Inductance
(D) Resistance

23. A hall adder circuit can add _____________ bits at a time.
(A) 2
(B) 3
(C) 4
(D) 1

24. Which of the following is a single input flip-flop?
(A) R-S
(B) D
(C) JK
(D) Clocked RS

25. Time constant of RC circuit is the during which capacitor voltage rises to ___________% of its final steady value.
(A) 50
(B) 100
(C) 63
(D) 70.7

26. Which of the following is an insulator?
(A) Ferrite
(B) Germanium
(C) Silicon
(D) Zinc

27. Antimony is a _____________ type duping material.
(A) Trivalent
(B) Semiconductor
(C) Acceptor
(D) Pentavalent

28. A dynamic microphone is a _____ type transducer.
(A) Acoustical
(B) Thermal
(C) Optical
(D) Variable resistance

29. The function of NUT gate is to ______.
(A) Invert an input signal
(B) Add two input signals
(C) Multiply two input signals
(D) Perform as a universal gate

30. The channel width in PAL system is ______________.
(A) 5.5 MHz
(B) 4.433 MHz
(C) 38.9 MHz
(D) 7 MHz

31. Clamping circuits make use of adding a ___________ level into an ac signal.
(A) Zero
(B) DC
(C) AC
(D) Negative

32. Which of the following statements is not related to Ohm’s law?
(A) Current is directly proportional to Pd
(B) Current is inversely proportional to resistance
(C) Law is applicable to dc circuits
(D) Law is independent of temperature

33. Which of the following is not used for making LED?
(A) Germanium
(B) Gallium arsenide
(C) Gallium phosphide
(D) Gallium arsenide phosphide

34. ln SCR if the conduction angle is less. the output, is __________.
(A) More
(B) Less
(C) Not affected
(D) Infinity

35. The ripple output frequency of bridge rectifier in 50 Hz supply is ___________ Hz.
(A) 50
(B) 25
(C) 100
(D) 60

36. At saturation point of transistor, VCE=_______ volt.
(A) Zero
(B) Vcc
(C) One
(D) Infinite

37. In a multistage amplifier, the overall voltage gain is equal to ______________ of the gains of individual stages.
(A) Sum
(B) Half
(C) Product
(D) Gain of one stage

38. AM wave has ___________ side bands.
(A) no
(B) one
(C) a number of
(D) two

39. IF in AM radio receivers is obtained by ______________.
(A) Detection
(B) Heterodyning
(C) Rectification
(D) Amplification

40. Barkhausen criterion is important in __________.
(A) Oscillation
(B) Rectification
(C) Doping
(D) Demodulation

41. _____________ oscillator is not a sinusoidal oscillator.
(A) RC phase shift
(B) Wien bridge
(C) Crystal
(D) UJT relaxation

42. The statement not related to a diac is _____________.
(A) It is a two terminal device
(B) It is an SCR without its gate terminal
(C) It can be used to trigger a triac
(D) It is a bidirectional switching device

43. The image continuity in motion pictures is obtained by the property of ____________.
(A) Doppler effect
(B) Skin effect
(C) Photoelectric effect
(D) Persistence of vision

44. dB is used to measure _____________.
(A) power level
(B) power
(C) voltage
(D) magnetic flux

45. Cross over distortion occurs in __________ type of amplifiers.
(A) Class A
(B) Class B
(C) Class C
(D) Push-pull

46. The leakage current in a transistor is ______________ dependent on.
(A) Temperature
(B) Voltage
(C) Majority charge carriers
(D) Input signal

47. BJT is __________
(A) A type of FET
(B) A type of UJT
(C) NPN or PNP transistor
(D) Bidirectional Junction Transistor

48. Atomic number of Silicon is ______.
(A) 10
(B) 32
(C) 14
(D) 16

49. Yellow, Violet. Red indicates _____________ Ohms.
(A) 4.7
(B) 470
(C) 4.7 k
(D) 47 k

50. ___________ loss is not a transformer loss.
(A) Core
(B) Copper
(C) Hysterisis
(D) Dielectric

51. SCR has ___________ layers.

52. A logic circuit that has at high output only when all its inputs are low is ___________ gate
(D) OR

53. 88-108 MHz band of frequencies is used for __________ broadcasting.
(A) TV
(B) FM
(C) AM
(D) Defence

54. ln FM receivers. limiter is used ___________.
(A) For automatic gain control
(B) To eliminate amplitude variations
(C) To maintain minimum 5/ N ratio
(D) To detect the audio signal from carrier

55. The frequency range used for RADAR is _____.
(C) UHF and Microwave
(D) Microwave

56. Approximate distance of geostationary satellite from earth is ___________.
(A) 15,625 kms
(B) 30,000 kms
(C) 36,000 kms
(D) 80,000 kms

57. Recording in compact disc is done with the help of _______________.
(A) Laser
(B) UV light
(C) IR light
(D) None of these

58. _______________, is not u semiconductor memory.
(C) CD
(D) Cache

59. A two diode rectifier requires _______.
(A) Direct ac mains
(B) Centre tapped transformer
(C) Low PIV rated diodes
(D) No filters for smoothening

60. The processor chip 8085A has __________ pins.
(A) 14
(B) 16
(C) 40
(D) 80

61. The heart of a CRO is _____________
(A) Cathode ray tube
(B) Power supply
(C) Vertical amplifier
(D) Horizontal amplifier

62. The function of the emitter bypass capacitor in a CE amplifier is to ____________.
(A) Act as a high resistance path for dc signals
(B) Act as a low resistance path for dc signals
(C) Provide a low resistance path for ac signals
(D) Provide a high resistance path for ac signals

63. The minimum forward bias voltage for a Germanium PN junction to set into conduction is _______ Volt.
(A) 0.7
(B) 0.6
(C) 0.1
(D) 0.3

64. The width of the collector layer in a transistor is ___________.
(A) Equal to that of the base region
(B) Less than that of the base region
(C) Much greater than that of the base region
(D) Much less than the emitter region

65. In NPN transistors, the majority charge carriers are _____________.
(A) Holes
(B) Electrons
(C) Positive charges
(D) None of these

66. _____________ diode is used in reverse biased condition for its normal working.
(A) Zener
(B) Light emitting
(C) Rectifier
(D) Signal

67. An etchant used in PCB making is ____________.
(A) Ferric Chloride
(B) Ammonium Chloride
(C) Carbon Tetrachloride
(D) Copper Sulphate

68. The most common component used in ripple filter circuits is ______________.
(A) Inductor
(B) Resistor
(C) Capacitor
(D) Diode

69. ___________ voltage is the maximum reverse voltage that a diode can withstand.
(A) Peak inverse
(B) Peak
(C) Cut – in
(D) Barrier

70. When two capacitors are connected in series, the effective capacitance is __________.
(A) Increases
(B) Decreases
(C) Doubles
(D) Becomes unity

71. When ten resistors each of 47 Q are connected in parallel, the net resistance of the combination is _____________ Ohms.
(A) 47
(B) 10
(C) 470
(D) 4.7

72. The quality factor ‘Q’ of an ideal inductor is _____________.
(A) Unity
(B) Zero
(C) 0.63
(D) Infinity

73. ___________is not a variable resistor.
(A) Preset
(B) Varactor
(C) Rheostat
(D) Potentiometer

74. Insulation resistance: can be measured using _________.
(A) Multimeter
(B) Megger
(C) Galvanometer
(D) Clampmeter

75. Bistable multivibrator is also called as ___________.
(A) Monoshot
(B) Sinusoidal oscillator
(C) Free running multivibrator
(D) Flip-flop

76. Colpitts oscillator uses _____________ feedback.
(A) no
(B) positive
(C) negative
(D) none of these

77. The binary number 1111 corresponds to __________ hexadecimal number.
(A) A
(B) B
(C) D
(D) F

78. The voltage regulation of an ideal regulated power supply is _____________%.
(A) 50
(B) 100
(C) 1
(D) 0

79. The input impedance of a JFET is high because ___________.
(A) its gate is insulated from the channel
(B) its input is reverse biased
(C) of the presence of the substrate
(D) all the above

80. ___________ has no gate terminal.
(B) Triac
(D) Diac