Engineering/Microwave Engineering ECE Mcq Sample Test,Sample questions

Question:
 A Magic “ Tee is nothing but

1.Modification of E- Plane tee

2.Modification of H- Plane tee

3.Combination of E- plane & H- plane

4. Two E- plane tees connected in parallel

Posted Date:-2022-04-08 05:49:46


Question:
 In Microwave communication links, The rain drop attenuation experienced is mainly due to

1.Absorption of microwave energy by water vapour

2.Resonance absorption of atomic vibration in water molecules

3.Scattering of microwaves by collection of water drops

4.Refraction of microwaves through liquid drop lenses formed by rain

Posted Date:-2022-04-08 06:04:24


Question:
 The phenomenon of microwave signals following the curvature of earth is known as _______

1.Faraday effect

2.Ducting

3.Wave tilt

4.Troposcatter

Posted Date:-2022-04-08 06:01:59


Question:
 Which of the following is the main advantage of microwave

1.Highly directive

2.Moves at the speed of light

3.Greater S/N ratio

4.High penetration power

Posted Date:-2022-04-08 04:56:36


Question:
 Which of the following is used for amplification of microwave energy

1.Travelling wave tube

2.Magnetron

3.Reflex klystron

4.Gunn diode

Posted Date:-2022-04-08 05:50:52


Question:
A space between two cavities in two cavity klystron is _______

1.Drift space

2.Free space

3.Running space

4.Normal space

Posted Date:-2022-04-08 05:01:55


Question:
At Microwave frequencies , the size of the antenna becomes

1.Very large

2.Large

3.Small

4.Very Small

Posted Date:-2022-04-08 05:58:27


Question:
Due to the curvature of earth, microwave repeaters are placed at a distance of about

1.10 km

2. 50 km

3.150 km

4.250 km

Posted Date:-2022-04-08 05:57:37


Question:
For transverse electromagnetic wave propagation, we need a minimum of:

1.1 conductor

2.conductors

3.conductors

4.bunch of conductors

Posted Date:-2022-04-08 06:15:37


Question:
For which of the following reason, the Varactor diode is not useful at microwave frequencies

1.For electronic tuning

2.For frequency multiplication

3.As an Oscillator

4.As a parametric amplifier

Posted Date:-2022-04-08 05:18:42


Question:
HEMT(High Electron Mobility Transistor) used in microwave circuit is a _________

1.Source

2.Detector

3.High power amplifier

4.Low noise amplifier

Posted Date:-2022-04-08 05:14:43


Question:
In π mode operation of magnetron, the spokes due to phase focusing effect rotate at an angular velocity corresponding to ________

1.One pole / cycle

2.Two poles / cycle

3.Four poles / cycle

4.Six poles / cycle

Posted Date:-2022-04-08 05:53:37


Question:
In Microwave circuit , Wave guide section will act as a ______

1.Low pass filter

2.Band pass filter

3.High pass filter

4.Band reject filter

Posted Date:-2022-04-08 05:15:22


Question:
In Microwave power measurements using bolometer, the principle of working is the variation of

1.Inductance with absorption of power

2.Resistance with absorption of power

3.Capacitance with absorption of power

4.Cavity dimensions with heat generated by the power

Posted Date:-2022-04-08 05:51:59


Question:
In multicavity klystron additional cavities are inserted between buncher & catcher cavities to achieve

1.Higher Gain

2.Higher Efficiency

3.Higher Frequency

4.Higher Bandwidth

Posted Date:-2022-04-08 04:59:53


Question:
Magnetron is an _______

1.Amplifier

2.Oscillator

3.Phase shifter

4.Both phase shifter & amplifier

Posted Date:-2022-04-08 05:02:21


Question:
Microwave antenna aperture efficiency depends on _________

1.Feed pattern

2.Antenna aperture

3.Surface losses

4.low side lobe level

Posted Date:-2022-04-08 05:25:59


Question:
Most of the power measuring microwave devices measure

1.Average power

2.Peak power

3.Instantaneous power

4.None of these

Posted Date:-2022-04-08 05:14:08


Question:
On which of the following principle does Klystron operates

1.Amplitude Modulation

2.Frequency Modulation

3.Pulse Modulation

4.Velocity Modulation

Posted Date:-2022-04-08 04:58:03


Question:
PIN diode is suitable for use as a _____

1.Microwave switch

2.Microwave mixed diode

3.Microwave detector

4.None of these

Posted Date:-2022-04-08 05:24:21


Question:
Reflex klystron is a ______

1.Amplifier

2.Oscillato

3.Attenuator

4.Filter

Posted Date:-2022-04-08 04:57:13


Question:
Short term fading in microwave communication links can be overcome by

1.Increasing the transmitted power

2.Changing the antenna

3.Changing the modulation scheme

4.Diversity reception & transmission

Posted Date:-2022-04-08 05:05:20


Question:
The key difference between circuit theory and transmission line theory is:

1.circuit elements

2.voltage

3.current

4.electrical size

Posted Date:-2022-04-08 06:07:34


Question:
Transmission line is a _________ parameter network.

1.distributed

2.distributed

3.active

4.none of the mentioned

Posted Date:-2022-04-08 06:14:17


Question:
Traveling Wave Tube is __________

1.Oscillator

2.Tuned Amplifier

3.Wide Band Amplifier

4.Both Amplifier & Oscillator

Posted Date:-2022-04-08 05:02:58


Question:
Travelling wave parametric amplifiers are used to _______

1.Provide a greater gain

2.Reduce the number of Varactor diodes required

3.Avoid the need for cooling

4.Provide a greater bandwidth

Posted Date:-2022-04-08 05:54:57


Question:
Which of the following bands that comes under Microwave Band

1.C

2.D

3.E

4.all the above

Posted Date:-2022-04-08 04:55:00


Question:
Which of the following elements are taken in Microwave

1.Lumped Circuit Elements

2.Distributed Circuit Elements

3.Both a & b

4.None of these

Posted Date:-2022-04-08 05:04:20


Question:
Which of the following is one of the mode in Reflex Klystron

1.Give same frequency but different transit time

2.Are caused by spurious frequency modulation

3.Are just for theoretical consideration

4.Result from excessive transit time across resonator gap

Posted Date:-2022-04-08 05:00:45


Question:
Which of the following is the biggest advantage of the TRAPATT diode over IMPATT diod

1.Low Noise

2.High efficiency

3.Ability to operate at high frequencies

4.Lesser sensitivity to harmonics

Posted Date:-2022-04-08 05:17:50


Question:
Which of the following is the disadvantage of microstrips with respect to stripline circuit

1.Do not let themselves to be printed circuits

2.Are more likely to radiate

3.Are bulkier

4.Are more expensive & complex to manufacture

Posted Date:-2022-04-08 05:12:29


Question:
Which of the following is the major advantage of Travelling wave tube over Klystron

1.Higher gainy

2.Higher frequency

3.Higher Output

4.Higher bandwidth

Posted Date:-2022-04-08 05:56:51


Question:
Which of the following is the one of the reason why vacuum tubes eventually fail at microwave frequencies

1.Noise figure increases

2.Transit time becomes too short

3.Shunt capacitive reactances becomes too large

4.Series inductance reactances becomes too small

Posted Date:-2022-04-08 05:29:07


Question:
Which of the following is the semiconductor diode which can be used in switching circuits at microwave range

1.PIN diode

2.Tunnel diode

3.Varactor diode

4.Gunn diode

Posted Date:-2022-04-08 05:24:51


Question:
Which of the following microwave tube amplifier uses an axial magnetic field & radial electric field

1.Reflex Klystron

2.Coaxial Magnetron

3.Travelling Wave Magnetron

4.Crossed field amplifier

Posted Date:-2022-04-08 05:11:36


Question:
Which of the following noise becomes important at microwave frequencies

1.Shot noise

2.Flicker noise

3.Thermal noise

4.Transit time noise

Posted Date:-2022-04-08 05:59:59


Question:
_______ is the best medium for handling the large microwave power

1.Coaxial line

2.Rectangular wave guide

3.Strip line

4.Circular wave guide

Posted Date:-2022-04-08 05:05:53


Question:
_________ noise is produced in a microwave tube due to random nature of emission & electron flow

1.Partition noise

2.Shot noise

3.Johnson noise

4.Shannon noise

Posted Date:-2022-04-08 05:26:34


Question:
__________ is a region of Electromagnetic spectrum having frequency ranging from 1GHz to 100 GHz

1.Micro wave

2.UV

3.IRD

4.None of these

Posted Date:-2022-04-08 04:53:45


More MCQS

  1. Civil Engineering MCQS -Building Materials Section 1
  2. Civil Engineering MCQS -Building Materials Section 2
  3. Civil Engineering MCQS -Building Materials Section 3
  4. Civil Engineering MCQS -Building Materials Section 4
  5. Mechanical Engineering Engineering MCQS -Mechanics Section-1
  6. Mechanical Engineering Engineering MCQS -Mechanics Section-2
  7. Civil Engineering MCQS -Building Materials Section 5
  8. Civil Engineering MCQS -Building Materials Section 6
  9. Civil Engineering MCQS -Building Materials Section 7
  10. Civil Engineering MCQS -Building Materials Section 8
  11. Civil Engineering MCQS-Surveying Section 1
  12. Civil Engineering MCQS-Surveying Section 2
  13. Civil Engineering MCQS-Surveying Section 3
  14. Civil Engineering MCQS-Surveying Section 4
  15. Civil Engineering MCQS-Surveying Section 5
  16. Civil Engineering MCQS-Surveying Section 6
  17. Civil Engineering MCQS-Surveying Section 7
  18. Civil Engineering MCQS-Surveying Section 8
  19. Civil Engineering (MCQS) Soil Mechanics and Foundation Engineering SET 1
  20. Civil Engineering (MCQS) Soil Mechanics and Foundation Engineering SET 2
  21. Civil Engineering (MCQS) Soil Mechanics and Foundation Engineering SET 3
  22. Civil Engineering (MCQS) Soil Mechanics and Foundation Engineering SET 4
  23. Civil Engineering (MCQS) Soil Mechanics and Foundation Engineering SET 5
  24. Civil Engineering (MCQS) Soil Mechanics and Foundation Engineering SET 6
  25. Civil Engineering [MCQS] Applied Mechanics Section -1
  26. Civil Engineering [MCQS] Applied Mechanics Section -2
  27. Civil Engineering [MCQS] Applied Mechanics Section -3
  28. Civil Engineering [MCQS] Applied Mechanics Section -4
  29. Civil Engineering [MCQS] Applied Mechanics Section -5
  30. Civil Engineering -MCQS-Hydraulics Section 1
  31. Civil Engineering -MCQS-Hydraulics Section 2
  32. Civil Engineering -MCQS-Hydraulics Section 3
  33. Civil Engineering -MCQS-Hydraulics Section 4
  34. Civil Engineering -MCQS-Hydraulics Section 5
  35. Civil Engineering -MCQS-Hydraulics Section 6
  36. Civil Engineering -MCQS-Waste Water Engineering - Section 1
  37. Civil Engineering -MCQS-Waste Water Engineering - Section 2
  38. Civil Engineering -MCQS-Waste Water Engineering - Section 3
  39. Civil -MCQ RCC Structures Design - Section 1
  40. Civil -MCQ RCC Structures Design - Section 2
  41. Civil -MCQ RCC Structures Design - Section 3
  42. Engineering Electrical Engineering Dc Motors part1
  43. Engineering Electrical Engineering Dc Motors part 2
  44. Engineering Electrical Engineering Dc Motors part3
  45. Electric Drives MCQ Questions and Answers
  46. Automobile Engineering MCQ Set 01
  47. Automobile Engineering MCQ Set 02
  48. Automobile Engineering MCQ Set 03
  49. Compressors, Gas Turbines and Jet Engines MCQ Practice Test - Set 01
  50. Compressors, Gas Turbines and Jet Engines MCQ Practice Test - Set 02
  51. Compressors, Gas Turbines and Jet Engines MCQ Practice Test - Set 03
  52. Compressors, Gas Turbines and Jet Engines MCQ Practice Test - Set 04
  53. Machine Design Mcq set 01
  54. Machine Design Mcq set 02
  55. Machine Design Mcq set 3
  56. Mechanical Engineering Design MCQ SET 03
  57. Mechanical Engineering Design MCQ SET 04
  58. Advanced Surveying mcq set 1
  59. Automobile Engineering MCQ
  60. Basic Civil Engineering Mcq
  61. Microwave Engineering Mcq Set 1
  62. Microwave Engineering Mcq Set 2
  63. Microwave Engineering Mcq Set 3
  64. Mechanical Engineering Basic Mcq Questions Set 1
  65. Mechanical Engineering Basic Mcq Questions Set 2
  66. Basic Chemical Engineering MCQ
  67. Chemical Engineering MCQ Question Set 1
  68. Chemical Engineering Mcq Question Set 2
  69. Chemical Engineering Mcq Question Set 3
  70. Chemical Engineering Mcq Question Set 4
  71. Chemical Engineering Mcq Question Set 5
  72. Chemical Engineering Mcq Question Set 6
  73. Chemical Engineering Mcq Question Set 7
  74. Chemical Engineering Mcq Question Set 8
  75. Civil Engineering Basic Set 1
  76. Chemical Engineering Mcq Question Set 9
  77. Chemical Engineering Mcq Question Set 10
  78. Civil Engineering Basic Set 2
  79. Chemical Engineering Mcq Question Set 11
  80. Chemical Engineering Mcq Question Set 12
  81. Engineering Electrical Engineering
  82. Chemical Engineering Mcq Question Set 14
  83. Chemical Engineering Mcq Question Set 15
  84. Chemical Engineering Mcq Question Set 16
  85. Chemical Engineering Mcq Question Set 17
  86. Engineering Electronics & Communication Engineering
  87. Engineering Computer Science & Engineering
  88. Computer Science & Engineering Computer Networks Mcq
  89. Environmental Engineering MCQ
  90. Microwave Engineering ECE Mcq
  91. Electrical Engineering Mcq
  92. Engineering Branch Wise MCQs
  93. Software Engineering Multiple Choice Questions
  94. Traffic Engineering MCQ
  95. Highway Engineering MCQs
  96. Engineering Thermodynamics MCQs
  97. Materials and Processes -Notch Toughness
  98. Software Engineering Multiple Choice Question Set 1
  99. Software Engineering Multiple Choice Question Set 2
  100. Software Engineering Multiple Choice Question Set 3
  101. Software Engineering Multiple Choice Question Set 4
  102. Hydraulic Machines MCQs Set-1
  103. Hydraulic Machines MCQs Set-2
  104. Hydraulic Machines MCQs Set-3
  105. Hydraulic Machines MCQs Set-4
Search
R4R Team
R4Rin Top Tutorials are Core Java,Hibernate ,Spring,Sturts.The content on R4R.in website is done by expert team not only with the help of books but along with the strong professional knowledge in all context like coding,designing, marketing,etc!