Microwave Engineering ECE Mcq | Engineering | Learn & Give Online MCQS Test ,MCQs: multiple choice questions and answers,Mock Tests and Practice Papers

Engineering/Microwave Engineering ECE Mcq Sample Test,Sample questions

Question:

 A Magic â€œ 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

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

Question:

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

1.Faraday effect

2.Ducting

3.Wave tilt

4.Troposcatter

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

Question:

 Which of the following is used for amplification of microwave energy

1.Travelling wave tube

2.Magnetron

3.Reflex klystron

4.Gunn diode

Question:

A space between two cavities in two cavity klystron is _______

1.Drift space

2.Free space

3.Running space

4.Normal space

Question:

At Microwave frequencies , the size of the antenna becomes

1.Very large

2.Large

3.Small

4.Very Small

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

Question:

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

1.1 conductor

2.conductors

3.conductors

4.bunch of conductors

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

Question:

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

1.Source

2.Detector

3.High power amplifier

4.Low noise amplifier

Question:

In Ãâ‚¬ 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

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

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

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

Question:

Magnetron is an _______

1.Amplifier

2.Oscillator

3.Phase shifter

4.Both phase shifter & amplifier

Question:

Microwave antenna aperture efficiency depends on _________

1.Feed pattern

2.Antenna aperture

3.Surface losses

4.low side lobe level

Question:

Most of the power measuring microwave devices measure

1.Average power

2.Peak power

3.Instantaneous power

4.None of these

Question:

On which of the following principle does Klystron operates

1.Amplitude Modulation

2.Frequency Modulation

3.Pulse Modulation

4.Velocity Modulation

Question:

PIN diode is suitable for use as a _____

1.Microwave switch

2.Microwave mixed diode

3.Microwave detector

4.None of these

Question:

Reflex klystron is a ______

1.Amplifier

2.Oscillato

3.Attenuator

4.Filter

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

Question:

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

1.circuit elements

2.voltage

3.current

4.electrical size

Question:

Transmission line is a _________ parameter network.

1.distributed

2.distributed

3.active

4.none of the mentioned

Question:

Traveling Wave Tube is __________

1.Oscillator

2.Tuned Amplifier

3.Wide Band Amplifier

4.Both Amplifier & Oscillator

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

Question:

Which of the following bands that comes under Microwave Band

1.C

2.D

3.E

4.all the above

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

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

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

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

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

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

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

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

Question:

Which of the following noise becomes important at microwave frequencies

1.Shot noise

2.Flicker noise

3.Thermal noise

4.Transit time noise

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

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

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 on by Online Exam TestTeam

Engineering/Microwave Engineering ECE Mcq Sample Test,Sample questions

Question: A Magic â€œ Tee is nothing but

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

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

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

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

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

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

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

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

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

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

Question: In Ãâ‚¬ mode operation of magnetron, the spokes due to phase focusing effect rotate at an angular velocity corresponding to ________

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

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

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

Question: Magnetron is an _______

Question: Microwave antenna aperture efficiency depends on _________

Question: Most of the power measuring microwave devices measure

Question: On which of the following principle does Klystron operates

Question: PIN diode is suitable for use as a _____

Question: Reflex klystron is a ______

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

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

Question: Transmission line is a _________ parameter network.

Question: Traveling Wave Tube is __________

Question: Travelling wave parametric amplifiers are used to _______

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

Question: Which of the following elements are taken in Microwave

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

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

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

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

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

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

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

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

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

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

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

More MCQS

Search

Olete Team

Question:
A Magic â€œ Tee is nothing but

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Question:
Magnetron is an _______

Question:
Microwave antenna aperture efficiency depends on _________

Question:
Most of the power measuring microwave devices measure

Question:
On which of the following principle does Klystron operates

Question:
PIN diode is suitable for use as a _____

Question:
Reflex klystron is a ______

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

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

Question:
Transmission line is a _________ parameter network.

Question:
Traveling Wave Tube is __________

Question:
Travelling wave parametric amplifiers are used to _______

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

Question:
Which of the following elements are taken in Microwave

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

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

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

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

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

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

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

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

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

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

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