Radar is used to (1) locate submerged submarines. (2) receive signal from radio receivers. (3) detect and locate distant objects. (4) locate geostationary satellites.

Radar is used to (1) locate submerged submarines. (2) receive signal from radio receivers. (3) detect and locate distant objects. (4) locate geostationary satellites.
by

1 Answer

Answer :

 detect and locate distant objects
by

Related questions

Radar is used for (a) Detecting objects by using light waves (b) Reflecting sound waves to detect objects (c) Determining the presence and location of objects with radio waves (d) Tracking rain-bearing clouds

Description : Radar is used for (a) Detecting objects by using light waves (b) Reflecting sound waves to detect objects (c) Determining the presence and location of objects with radio waves (d) Tracking rain-bearing clouds

Last Answer : Ans:(b)

What apparatus is used to locate a submerged object? (1) Radar (2) Sonar (3) Quasar (4) Pulsar

Description : What apparatus is used to locate a submerged object? (1) Radar (2) Sonar (3) Quasar (4) Pulsar

Last Answer : (2) Sonar Explanation: Sonar (originally an acronym for Sound Navigation And Ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, communicate ... sound made by vessels; active sonar is emitting pulses of sounds and listening for echoes.

What apparatus is used to locate a submerged object? (1) Radar (2) Sonar (3) Quasar (4) Pulsar

Description : What apparatus is used to locate a submerged object? (1) Radar (2) Sonar (3) Quasar (4) Pulsar

Last Answer : Sonar

Submerged objects can be located using (1) Radar (2) Sonar (3) Quasar (4) Pulsar

Description : Submerged objects can be located using (1) Radar (2) Sonar (3) Quasar (4) Pulsar

Last Answer : (2) Sonar Explanation: Sonar (originally an acronym for Sound Navigation And Ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, communicate with or detect objects on or under the surface of the water, such as other vessels.

The device used for locating submerged objects under sea is – (1) sonar (2) radar (3) laser (4) maser

Description : The device used for locating submerged objects under sea is – (1) sonar (2) radar (3) laser (4) maser

Last Answer : (1) sonar Explanation: Sonar (originally an acronym for Sound Navigation And Ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, communicate ... acoustic location and of measurement of the echo characteristics of "targets" in the water.

The device used for locating submerged objects under sea is. (1) sonar (2) radar (3) laser (4) maser

Description : The device used for locating submerged objects under sea is. (1) sonar (2) radar (3) laser (4) maser

Last Answer : sonar

Submerged objects can be located using (1) radar (2) sonar (3) quasar (4) pulsar

Description : Submerged objects can be located using (1) radar (2) sonar (3) quasar (4) pulsar

Last Answer : sonar

What is the typical frequency used for communicating to submerged submarines? A. 100 Hz B. 500 Hz C. 4 kHz D. 200 Hz

Description : What is the typical frequency used for communicating to submerged submarines? A. 100 Hz B. 500 Hz C. 4 kHz D. 200 Hz

Last Answer : A. 100 Hz

The minimum number of geostationary satellites needed for un-interrupted global coverage is (1) 3 (2) 2 (3) 4 (4) 1

Description : The minimum number of geostationary satellites needed for un-interrupted global coverage is (1) 3 (2) 2 (3) 4 (4) 1

Last Answer : (2) 2 Explanation: In theory, 2 satellites in diametrically opposite geosynchronous orbits could cover the planet. In order for the satellites to communicate, a minimum of 3 would be needed, ... At this point, the strength and quality of coverage increases proportionally to the number of satellites.

Geostationary stationary satellites are located ___________ with respect to the equator. A. 0˚longitude B. 0˚ latitude C. 90˚latitude D. 45 latitude˚

Description : Geostationary stationary satellites are located ___________ with respect to the equator. A. 0˚longitude B. 0˚ latitude C. 90˚latitude D. 45 latitude˚

Last Answer : B. 0˚ latitude

What is the orbit inclination of geostationary satellites? A. 0° B. 10° C. 20° D. 30°

Description : What is the orbit inclination of geostationary satellites? A. 0° B. 10° C. 20° D. 30°

Last Answer : A. 0°

In satellite communication, the Geostationary satellites are conveniently located with respect to the equator at _______. A. 45 degrees latitude B. 90 degrees latitude C. 0 degrees latitude D. 5 degrees latitude

Description : In satellite communication, the Geostationary satellites are conveniently located with respect to the equator at _______. A. 45 degrees latitude B. 90 degrees latitude C. 0 degrees latitude D. 5 degrees latitude

Last Answer : C. 0 degrees latitude

Geostationary satellites have lifetime of nearly A. 20 years B. 10 years C. 50 years D. 60 years

Description : Geostationary satellites have lifetime of nearly A. 20 years B. 10 years C. 50 years D. 60 years

Last Answer : 20 years

Number of satellites in geostationary orbits are A. 100 B. 200 C. 300 D. 400

Description : Number of satellites in geostationary orbits are A. 100 B. 200 C. 300 D. 400

Last Answer : 200

The minimum number of geostationary satellites needed for uninterrupted global coverage is : (1) 3 (2) 2 (3) 4 (4) 1

Description : The minimum number of geostationary satellites needed for uninterrupted global coverage is : (1) 3 (2) 2 (3) 4 (4) 1

Last Answer :  2

Communication satellites are used to: (1) To transmit communication signals (2) To receive and redirect communication signals (3) To only receive communication signal (4) To provide information of national sources only

Description : Communication satellites are used to: (1) To transmit communication signals (2) To receive and redirect communication signals (3) To only receive communication signal (4) To provide information of national sources only

Last Answer : To receive and redirect communication signals

Are radio telescopes detect objects that optical telescopes cannot?

Description : Are radio telescopes detect objects that optical telescopes cannot?

Last Answer : Yes, that is correct.

What is the most commonly used intermediate frequency of radar receivers? A. 40 MHz B. 60 MHz C. 70 MHz D. 30 MHz

Description : What is the most commonly used intermediate frequency of radar receivers? A. 40 MHz B. 60 MHz C. 70 MHz D. 30 MHz

Last Answer : D. 30 MHz

What IF frequencies are normally used in radar receivers

Description : What IF frequencies are normally used in radar receivers

Last Answer : Thirty or sixty megahertz.

Avalanche photodiode receivers can detect bits of transmitted data by receiving a. 100 photons b. 200 photons c. 2000 photons d. 300 photons

Description : Avalanche photodiode receivers can detect bits of transmitted data by receiving a. 100 photons b. 200 photons c. 2000 photons d. 300 photons

Last Answer : 200 photons

A pilot can improve the probability of detecting other aircrafts by: a. Minimizing the duration of eye rests and making as many eye movements as possible b. Moving the head frequently to alter the apparent motion of any distant object c. Maximizing the time spent looking in each sector to allow the maximum chance of detecting movement d. Maintaining as far as possible a lookout ahead of the aircraft and relying on peripheral vision to detect any movement from the side

Description : A pilot can improve the probability of detecting other aircrafts by: a. Minimizing the duration of eye rests and making as many eye movements as possible b. Moving the head frequently to ... lookout ahead of the aircraft and relying on peripheral vision to detect any movement from the side

Last Answer : a. Minimizing the duration of eye rests and making as many eye movements as possible

A pilot can improve the probability of detecting other aircrafts by: a. Minimizing the duration of eye rests and making as many eye movements as possible b. Moving the head frequently to alter the apparent motion of any distant object c. Maximizing the time spent looking in each sector to allow the maximum chance of detecting movement d. Maintaining as far as possible a lookout ahead of the aircraft and relying on peripheral vision to detect any movement from the side

Description : A pilot can improve the probability of detecting other aircrafts by: a. Minimizing the duration of eye rests and making as many eye movements as possible b. Moving the head frequently to ... a lookout ahead of the aircraft and relying on peripheral vision to detect any movement from the side

Last Answer : a. Minimizing the duration of eye rests and making as many eye movements as possible

Which band of frequencies used by military for its satellites and radar? A. C band B. X band C. L band D. P band

Description : Which band of frequencies used by military for its satellites and radar? A. C band B. X band C. L band D. P band

Last Answer : B. X band

The technique used by bats to find their way or to locate food is _______. (1) SONAR (2) RADAR (3) Echolocation (4) Flapping

Description : The technique used by bats to find their way or to locate food is _______. (1) SONAR (2) RADAR (3) Echolocation (4) Flapping

Last Answer : (3) Echolocation Explanation: Bats use echolocation to navigate and find food in the dark. To echolocate, bats send out sound waves from their mouth or nose. When the sound waves hit an object they produce echoes.

For the past couple days I have noticed a foul smell in my living room then it went to my bedroom now its in the kitchen and I can't seem to locate it. It smells like dog po. I have a dog but he is a outside dog.I can't detect it at all. I carpet clean?

Description : For the past couple days I have noticed a foul smell in my living room then it went to my bedroom now its in the kitchen and I can't seem to locate it. It smells like dog po. I have a dog but he is a outside dog.I can't detect it at all. I carpet clean?

Last Answer : For the past couple days I have noticed a foul smell in my living room then it went to my bedroom now its in the kitchen and I can't seem to locate it. It smells like dog Sh*t. I have a dog ... I could do to narrow this down? I am going crazy over this. Thanks.its more like rotten eggs or a reall

A satellite which simply reflects the signal without further amplification A. Passive satellite B. Active satellite C. Geostationary satellite D. Domestic satellite

Description : A satellite which simply reflects the signal without further amplification A. Passive satellite B. Active satellite C. Geostationary satellite D. Domestic satellite

Last Answer : A. Passive satellite

The most common device used for detection in radio receivers is

Description : The most common device used for detection in radio receivers is   (A)amplifier (B) triode (C) diode (D) transistor

Last Answer : The most common device used for detection in radio receivers is diode 

If we are looking into the past when we look at distant stars, doesn't that mean that when we look at objects in everyday life we see them as they were a moment ago?

Description : If we are looking into the past when we look at distant stars, doesn't that mean that when we look at objects in everyday life we see them as they were a moment ago?

Last Answer : Strictly speaking, yes, that’s true. Light is a physical stuff that takes time to travel. Of course, the delay is so small it’s only worth taking into account with things as insanely far away as stars, and maybe the other planets.

Distant objects are visible as a little out of focus in this condition – (1) presbiopia (2) hypermetropia (3) astigmatism (4) myopia

Description : Distant objects are visible as a little out of focus in this condition – (1) presbiopia (2) hypermetropia (3) astigmatism (4) myopia

Last Answer : (4) myopia Explanation: Myopia, also known as nearsightedness and short-sightedness, is a condition of the eye where the light that comes in does not directly focus on the retina but in front of it, causing ... at a distant object to be out of focus, but in focus when looking at a close object.

The instrument used to see the distant objects on the Earth is – (1) Terrestrial telescope (2) Astronomical telescope (3) Compound microscope (4) Simple microscope

Description : The instrument used to see the distant objects on the Earth is – (1) Terrestrial telescope (2) Astronomical telescope (3) Compound microscope (4) Simple microscope

Last Answer : (1) Terrestrial telescope Explanation: A telescope assists the eye chiefly in two way by enlarging the visual angle under which a distant object is seen, and thus magnifying that object; ... organ, thus rendering objects distinct and visible which would otherwise be indistinct and or invisible.

A colour-blind person cannot – (1) See distant objects (2) See black colour (3) Distinguish between certain colours (4) Have persistence of vision

Description : A colour-blind person cannot – (1) See distant objects (2) See black colour (3) Distinguish between certain colours (4) Have persistence of vision

Last Answer : (3) Distinguish between certain colours Explanation: Colour blindness or colour vision deficiency is the inability or decreased ability to see coluor, or perceive colour differences, under normal lighting ... to the optic nerve. This type of colour blindness is usually a sex-linked condition.

A person wears spectators with concave lenses. It means that normally (when not using glasses), the image of distant objects is focused in his eyes – (1) behind the retina (2) in front of the retina (3) on the retina (4) on the blind spot

Description : A person wears spectators with concave lenses. It means that normally (when not using glasses), the image of distant objects is focused in his eyes – (1) behind the retina (2) in front of the retina (3) on the retina (4) on the blind spot

Last Answer : (2) in front of the retina Explanation: A concave lens is used to correct short-sightedness (myopia). In myopia, images are formed in front of the retina, resulting in a blurred image. This ... relatively too long or the refractive powers of the cornea and lens of the eye are relatively too strong.

Distant objects are visible as a little out of focus in the condition:

Description : Distant objects are visible as a little out of focus in the condition:

Last Answer : Myopia

The instrument used to see the distant objects on the earth is –

Description : The instrument used to see the distant objects on the earth is –

Last Answer : Terrestrial Telescope

While working on a plane table, the correct rule is: (A) Draw continuous lines from all instrument stations (B) Draw short rays sufficient to contain the points sought (C) Intersection should be obtained by actually drawing second rays (D) Take maximum number of sights as possible from each station to distant objects

Description : While working on a plane table, the correct rule is: (A) Draw continuous lines from all instrument stations (B) Draw short rays sufficient to contain the points sought (C) Intersection ... drawing second rays (D) Take maximum number of sights as possible from each station to distant objects

Last Answer : (B) Draw short rays sufficient to contain the points sought

A person who can see distant objects clearly but cannot see nearby objects distinctly is suffering from which eye disease?

Description : A person who can see distant objects clearly but cannot see nearby objects distinctly is suffering from which eye disease?

Last Answer : Hypermetropia.

______ is the defect which occurs in eye due to excessive curvature of cornea and person is not able to see distant objects clearly . a)myopia b)hypermetropia c)squint d)cataract

Description : ______ is the defect which occurs in eye due to excessive curvature of cornea and person is not able to see distant objects clearly . a)myopia b)hypermetropia c)squint d)cataract

Last Answer : a)myopia

Distant objects are visible as a little out of focus in this condition : (1) presbiopia (2) hypermetropia (3) astigmatism (4) myopia

Description : Distant objects are visible as a little out of focus in this condition : (1) presbiopia (2) hypermetropia (3) astigmatism (4) myopia

Last Answer : myopia

A person wears spectates with concave lenses. It means that normally (when not using glasses), the image of distant objects is focussed in his eyes (1) behind the retina (2) in front of the retina (3) on the retina (4) on the blind spot

Description : A person wears spectates with concave lenses. It means that normally (when not using glasses), the image of distant objects is focussed in his eyes (1) behind the retina (2) in front of the retina (3) on the retina (4) on the blind spot

Last Answer : in front of the retina

The instrument used to see the distant objects on the Earth is (1) Terrestrial telescope (2) Astronomical telescope (3) Compound microscope (4) Simple microscope

Description : The instrument used to see the distant objects on the Earth is (1) Terrestrial telescope (2) Astronomical telescope (3) Compound microscope (4) Simple microscope

Last Answer : Terrestrial telescope

A colour-blind person cannot (1) see distant objects (2) see black colour (3) distinguish between certain colours (4) have persistence of vision

Description : A colour-blind person cannot (1) see distant objects (2) see black colour (3) distinguish between certain colours (4) have persistence of vision

Last Answer : distinguish between certain colours

ECE Board Exam March 1996 What is the purpose of the receiver’s squelch circuit? A. To overcome fluctuations in the level the RF signal arriving at the receiver antenna B. To prevent fluctuations in the AGC bias level C. To reduce the receiver’s sensitivity to all incoming signals D. To prevent amplified noise from reaching the loudspeaker during the absence of an incoming signal

Description : ECE Board Exam March 1996 What is the purpose of the receiver's squelch circuit? A. To overcome fluctuations in the level the RF signal arriving at the receiver antenna B. To prevent ... signals D. To prevent amplified noise from reaching the loudspeaker during the absence of an incoming signal

Last Answer : D. To prevent amplified noise from reaching the loudspeaker during the absence of an incoming signal

Which radar detectors can detect laser speed traps as well as radar?

Description : Which radar detectors can detect laser speed traps as well as radar?

Last Answer : The Passport 8500 X50 can detect lasr and radar signals.

Can you detect all types of radar with a radar detector?

Description : Can you detect all types of radar with a radar detector?

Last Answer : You can detect most types of radar itself,but you need other detectors for other systems.

Describe the operation for pulsed radar to detect the object.

Description : Describe the operation for pulsed radar to detect the object.

Last Answer : The Block diagram of high power Pulsed RADAR set is shown in fig. Above. Trigger Source: It Provides pulses for the modulator. Pulse Modulator: This Modulator provides rectangular ... . Sync pulses are applied by the trigger source to the display devices or the display indicator. 

Why during the day the radio only receives AM stations from a nearby City while at night you're able to hear a distant City's stations?

Description : Why during the day the radio only receives AM stations from a nearby City while at night you're able to hear a distant City's stations?

Last Answer : Energy from the sun interacts with the particles in the ionosphere, causing them to absorb AM radio frequencies. At night without solar energy, AM radio transmissions reflect off the ionosphere, allowing radio transmissions to be received at greater distances.

Why during the day the radio only receives AM stations from a nearby City while at night you're able to hear a distant City's stations?

Description : Why during the day the radio only receives AM stations from a nearby City while at night you're able to hear a distant City's stations?

Last Answer : Energy from the sun interacts with the particles in the ionosphere, causing them to absorb AM radio frequencies. At night without solar energy, AM radio transmissions reflect off the ionosphere, allowing radio transmissions to be received at greater distances.

A dipole antenna requires to be fed with 20 kW of power to produce a given signal strength to a particular distant point. If the addition of a reflector makes the same field strength available with an input power of 11kW. What is the gain in dB, obtained by the use if the reflector. (Gain referred to this particular dipole). A. 4.75 B. 2.6 C. 1.81 D. 4.24

Description : A dipole antenna requires to be fed with 20 kW of power to produce a given signal strength to a particular distant point. If the addition of a reflector makes the same field strength available with an input power of 11kW ... Gain referred to this particular dipole). A. 4.75 B. 2.6 C. 1.81 D. 4.24

Last Answer : B. 2.6

A dipole antenna requires to be feed with 20 kW of power to produce a given signal strength to a particular distant point. If the addition of a reflector makes the same field strength available with an input power of 11 kW. What is the gain in dB obtain by the use of the reflector ? ( Gain referred to this particular dipole) A. 4.24 B. 1.81 C. 4.75 D. 2.6

Description : A dipole antenna requires to be feed with 20 kW of power to produce a given signal strength to a particular distant point. If the addition of a reflector makes the same field strength available with an input power of 11 ... ( Gain referred to this particular dipole) A. 4.24 B. 1.81 C. 4.75 D. 2.6

Last Answer : D. 2.6

What is it called when bats, whales, and dolphins emit sound waves and interpret the reflect sound waves as a means to locate objects?

Description : What is it called when bats, whales, and dolphins emit sound waves and interpret the reflect sound waves as a means to locate objects?

Last Answer : Sonar is a system that locates objects by transmitting sound waves and detecting the waves when they are reflected off of objects. Bats and many other animals, such as whales and dolphins, use natural sonar to navigate and capture