By measuring the time taken for radar signal to travel to the target and back.

What types of radar that the target and radar installation are not cooperate to each other.

In Primary radar, the target and radar installation are

Radar receiver should ignore reflections from fixed objects and respond only to moving target. This can be achieved by using.

Radar receiver that can differentiate between fixed objects and moving target can be achieved by using.

The term Doppler Effect is meant by.

The deflection system used by Electromagnetic CRT is?

In Electromagnetic CRT, deflection system usually uses?

In Electrostatic CRT, deflection system usually uses?

The deflection system used by Electrostatic CRT is?

Calibration markers or range markers are commonly called.

The CAL PIPS or range markers are commonly called.

The Electrostatic Deflection system used.

What is type of deflection system used in Electromagnetic Deflection system?

The first type of display used in radar equipment and probably the simplest to produce is.

Type A display is type of display used in radar equipment and probably the.

What information can be displayed by 'Type A display'

Two types of time base deflection system in CRT are.

How many pair of plates used in Electrostatic CRT?

Two equal deflecting voltages of opposite polarity to both deflecting plates are called.

Balanced deflection is referred as.

The returned signal from right plate to left plate is called.

Flyback is the returned signal from.

If one plate in deflection system is grounded to earth, and signal apply to another plate is called.

The term Single-ended deflection is mean, when one plate in deflection system is grounded to earth,

The antenna beam shapes that most commonly employed in radar are.

How to overcome the Flyback in CRT?

Pencil beam and fan beam are the antenna beam shapes that.

The negative blanking pulse is used to overcome the.

How to overcome the problem of Flyback appear on the screen?

Noise generate from the thermionic valves, because of several effects on the action give rise to random electrical variations is the termed as.

Noise which is generated outside the receiver is caused either by electrical disturbances in the atmosphere or by sparking from the brushes or contact is termed as.

Scan rates of practical radars vary between.

The simplest an electronic switch, which has a very high rate of switching is refer to.

The antenna gain is expressed in.

The unit Decibel(dB) is used to expressed the.

The component that used to convert waves propagating in waveguides into free-space waves is.

What is the purpose of antenna drive motor?

The voltage, which is used in modulator and radar transmitter are dangerously high, known as.

EHT Voltages which is dangerously high used in.

The application of Orange Peel Reflector is usually for.

A beam that narrow in vertical direction and broad in horizontal direction is used for obtaining.

Ground search radar usually used the application of.

A beam that broad in vertical direction and narrow in horizontal direction is used for obtaining.

The Parabolic Reflector Antenna is usually used for.

Positive feedback is provided by electrons, which is passing through the lip of rhumbatron. This statement is referring to.

TR switch must act ………to connect the transmitter magnetron to the scanning unit for duration of each output pulse.

A straight piece of rectangular metal tubing, replace normal transmission lines in high frequency stages of centimetric radar equipment is.

A waveguide normally used in transmission line for.

High powered oscillator which is used as a transmitter in most centimetric radar equipment is.

The returned energy or returned signal reflected by the object is called.

What is the meaning by the term Pulse Duration?

What is the meaning by the term PRF?

The number of pulses occurring in one second is known as.

Which statement below is a factor that affects the radar operation?

The transmitter aerial radiates electromagnetic waves (EW) in.

A radar which indicates range, bearing and height of the target are often call the.

Narrow beam pointed to iceberg A and listen to echo, and then slightly turned to iceberg B and listen to echo and the process repeated. This procedure is known as.

The abbreviation ‘RADAR’ stands for.

To obtain a more accurate relative bearing of the target, which action is appropriate?

The Orange Peel Reflector provide beam

The Parabolic Reflector Antenna is used to provide.

A beam that broad in vertical direction and narrow in horizontal direction is used for obtaining :

A low side lobe is generally desired because of.

There would be a reduction of the energy in the main beam because of.

A high side lobe level will make the radar.

The hits per scan and bearing resolution are affected by.

What is the unit use for pulse repetition frequency (PRF).

What are the radar parameters used for target detection, target ranging and direction measurements?

The height finding radar used abeam shape of.

What is the unit use for pulse duration (TD).

What is the purpose of radar antenna?

What rotates the antenna with predetermined and constant speed?

A beam that is Broad in vertical, Narrow in horizontal direction is used for obtaining.

An element that placed in front of a feed horn will cause the radio waves from the feed horn to be reflected forward and to generate a narrow beam of radio energy is done by.

An Accurate bearing can be obtained by using beam shape of. Broad in vertical, Narrow in horizontal direction is used for obtaining.

Magnetron produced much more powerful output then obtained from the.

Radars that utilize the Doppler frequency shift as a means of detecting moving from fixed targets are called as.

MTI radar is also called as:-

What is the main function of Primary Radars?

What is the function of TX/TR switch?

The difference between primary and secondary radar is.

What is the function of a de-ionized T/R switching.

When the aircraft passes overhead the brightness of the screen increases and decreases causing the picture to.

The pulse duration ‘TD’ is the length of time for which the transmitter is.

The is the length of time for which is the transmitter is termed as.

The pulse duration ‘TD’ is the length of time for which the transmitter is switched on to give each pulse. It normally lies between.

Mean Power (Pa) is express in.

Peak Power (Pm) is express in.

Pulse Duration (Pd) is express in.

Pulse Repetition Frequency (Fr) is express in.

The circuit that does the high rate switching in a very short time interval in the transmitter is called.

The unit that produces timing pulses which recur at precise and regular intervals of time is.

The unit that automatically connects the transmitter to the aerial for the duration of each output pulse, and connects the receiver to the aerial for the intervals between pulses is.

The unit that amplifies the very weak echoes and presents them in the suitable form for display on the indicator CRT is.

The unit that presents the required target information in a suitable form is.

Which of the unit used to moved the antenna.

Which component labeled A, B, C corresponds to the antenna reflector in the diagram.

Which unit is used to concentrate energy into a beam and radiate it?

Which unit converts waves propagating in a waveguide into free‑space waves?

Which two beam shapes are most commonly employed in radar?

Identify the beam shape shown in the figure with a narrow, long main lobe from a parabolic dish.

Identify the beam shape shown in the figure where the main lobe is narrow in one plane and wide in the other.

Which three factors most directly affect radar bearing resolution and hits per scan?

In a typical feed horn radiation pattern, which feature represents the primary direction of radiation?

On a polar radiation plot of a parabolic reflector, which labels commonly denote side lobes besides the main lobe M?

Which components are essential in an electrostatic CRT for deflecting the electron beam?

During transmission, what is the primary purpose of a radar antenna, and during reception, what is its role?

Which statement best describes internal noise in radar receivers?

External noise affecting radar performance most commonly comes from which source?

Which factor directly affects radar performance by limiting minimum detectable signal?

Which list contains only recognized radar system classifications from the material?

Which set lists the three basic elements of a radar antenna structure?