What is the basic technique used to stabilize a satellite? A. Gravity-forward motion balance B. Spin C. Thruster control D. Solar panel orientation 62. The jet thrusters are usually

What is the basic technique used to stabilize a satellite?
A. Gravity-forward motion balance
B. Spin
C. Thruster control
D. Solar panel orientation
62. The jet thrusters are usually
by

1 Answer

Answer :

B. Spin
by

Related questions

The jet thrusters are usually fired to A. maintain altitude B. put the satellite into the transfer orbit C. inject the satellite in the geosynchronous orbit D. bring the satellite back to earth.

Description : The jet thrusters are usually fired to A. maintain altitude B. put the satellite into the transfer orbit C. inject the satellite in the geosynchronous orbit D. bring the satellite back to earth.

Last Answer : A. maintain altitude

Satellite engine uses A. jet propulsion B. ion propulsion system C. liquid fuel D. solar jet

Description : Satellite engine uses A. jet propulsion B. ion propulsion system C. liquid fuel D. solar jet

Last Answer : B. ion propulsion system

Satellite engine use A. liquid fuel B. jet propulsion C. ion propulsion system D. solar jet

Description : Satellite engine use A. liquid fuel B. jet propulsion C. ion propulsion system D. solar jet

Last Answer : C. ion propulsion system

In satellite communications, what means of attitude control is using the angular momentum of the spinning body to provide the roll and yaw stabilization? A. Spin stabilization B. Radial stabilization C. Three-axis stabilization D. Station keeping

Description : In satellite communications, what means of attitude control is using the angular momentum of the spinning body to provide the roll and yaw stabilization? A. Spin stabilization B. Radial stabilization C. Three-axis stabilization D. Station keeping

Last Answer : A. Spin stabilization

Which of the following satellite subsystem provides stabilization in orbit and senses changes in orientation? A. Attitude control subsystem B. TTC C. AKM D. Transponder

Description : Which of the following satellite subsystem provides stabilization in orbit and senses changes in orientation? A. Attitude control subsystem B. TTC C. AKM D. Transponder

Last Answer : A. Attitude control subsystem

Refers to the satellite orientation with respect to the earth A. Satellite altitude B. Satellite position C. Satellite location D. Satellite orbit

Description : Refers to the satellite orientation with respect to the earth A. Satellite altitude B. Satellite position C. Satellite location D. Satellite orbit

Last Answer : A. Satellite altitude

What kind of battery panels are used in some advance satellites? A. Gallium Arsenide solar panel B. Germanium based panels C. Silicon based panels D. Gallium Phosphate solar panel

Description : What kind of battery panels are used in some advance satellites? A. Gallium Arsenide solar panel B. Germanium based panels C. Silicon based panels D. Gallium Phosphate solar panel

Last Answer : A. Gallium Arsenide solar panel

How does spatial isolation technique in satellite communications avoid interference? A. Use of different polarity antennas B. Use of different types of antennas C. Employment of highly directional spot-beam antennas D. Use of low gain antennas

Description : How does spatial isolation technique in satellite communications avoid interference? A. Use of different polarity antennas B. Use of different types of antennas C. Employment of highly directional spot-beam antennas D. Use of low gain antennas

Last Answer : C. Employment of highly directional spot-beam antennas

Froude number is significant in (A) Supersonics, as with projectile and jet propulsion (B) Full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc. (C) Simultaneous motion through two fluids where there is a surface of discontinuity, gravity forces, and wave making effect, as with ship's hulls (D) All of the above

Description : Froude number is significant in (A) Supersonics, as with projectile and jet propulsion (B) Full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc. (C) Simultaneous motion ... gravity forces, and wave making effect, as with ship's hulls (D) All of the above

Last Answer : Answer: Option C

Reynolds number is significant in (A) Supersonics, as with projectile and jet propulsion (B) Full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc. (C) Simultaneous motion through two fluids where there is a surface of discontinuity, gravity forces, and wave making effect, as with ship's hulls (D) All of the above

Description : Reynolds number is significant in (A) Supersonics, as with projectile and jet propulsion (B) Full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc. (C) Simultaneous motion ... gravity forces, and wave making effect, as with ship's hulls (D) All of the above

Last Answer : Answer: Option B

Mach number is significant in (A) Supersonics, as with projectiles and jet propulsion (B) Full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc. (C) Simultaneous motion through two fluids where there is a surface of discontinuity, gravity force, and wave making effects, as with ship's hulls (D) All of the above

Description : Mach number is significant in (A) Supersonics, as with projectiles and jet propulsion (B) Full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc. (C) Simultaneous motion through ... gravity force, and wave making effects, as with ship's hulls (D) All of the above

Last Answer : Answer: Option A

Photodiodes used as fiber optic directors are a. Unbiased to generate a voltage same as a solar cell b. Forward bias c. Reversed bias d. Thermoelectrically cooled

Description : Photodiodes used as fiber optic directors are a. Unbiased to generate a voltage same as a solar cell b. Forward bias c. Reversed bias d. Thermoelectrically cooled

Last Answer : c. Reversed bias

Where is the brightness control located in a TV? A. The audio section B. The video section C. The grid-cathode circuit D. The front panel

Description : Where is the brightness control located in a TV? A. The audio section B. The video section C. The grid-cathode circuit D. The front panel

Last Answer : A. The audio section

Batteries are used to power all satellite subsystems A. at all times B. only during emergencies C. during eclipse periods D. to give the solar arrays a rest

Description : Batteries are used to power all satellite subsystems A. at all times B. only during emergencies C. during eclipse periods D. to give the solar arrays a rest

Last Answer : C. during eclipse periods

The main power sources for a satellite are A. batteries B. solar cells C. fuel cells D. thermoelectric generators 58. The maximum height of an ellip

Description : The main power sources for a satellite are A. batteries B. solar cells C. fuel cells D. thermoelectric generators 58. The maximum height of an ellip

Last Answer : B. solar cells

The orientation of an atomic orbital is governed by – (1) principal quantum number (2) magnetic quantum number (3) spin quantum number (4) azimuthal quantum number

Description : The orientation of an atomic orbital is governed by – (1) principal quantum number (2) magnetic quantum number (3) spin quantum number (4) azimuthal quantum number

Last Answer : (2) magnetic quantum number Explanation: Quantum numbers may be defined as a set of four numbers which give complete information about the electron in an atom, i.e., energy, orbital occupied, size ... tells the number of orientations which the orbitals present within the same sub-shell can take up.

The orientation of an atomic orbital is governed by (1) principal quantum number (2) magnetic quantum number (3) spin quantum number (4) azimuthal quantum number

Description : The orientation of an atomic orbital is governed by (1) principal quantum number (2) magnetic quantum number (3) spin quantum number (4) azimuthal quantum number

Last Answer : magnetic quantum number

What is the speed of the xenon ions as they exit the thruster?

Description : What is the speed of the xenon ions as they exit the thruster?

Last Answer : Need answer

Which of the following is the basic component of a communications satellite receiver? A. On-board computer B. Reflector C. Telemetry D. Transponder

Description : Which of the following is the basic component of a communications satellite receiver? A. On-board computer B. Reflector C. Telemetry D. Transponder

Last Answer : D. Transponder

A mobile satellite array has usually how many elements? A. 6 B. 88 C. 12 D. 14

Description : A mobile satellite array has usually how many elements? A. 6 B. 88 C. 12 D. 14

Last Answer : D. 14

Take my private jet for a spin plus 10k spending money - good for one weekend only - where will you go and what will you do?

Description : Take my private jet for a spin plus 10k spending money - good for one weekend only - where will you go and what will you do?

Last Answer : I would go to North Carolina with some loved ones and spend time on the beach,maybe visit a gallery or two.:)

An artificial satellite stays in the orbit around the Earth because (a) The Earth’s gravity does not act on the satellite due to the great distance between them (b) The Earth’s attraction produces the necessary centripetal acceleration (c) The Earth’s attraction is balanced by the attraction of other planets (d) There is an engine in the satellite that constantly applies an upward force to balance its weight

Description : An artificial satellite stays in the orbit around the Earth because (a) The Earth's gravity does not act on the satellite due to the great distance between them (b) The Earth's attraction ... (d) There is an engine in the satellite that constantly applies an upward force to balance its weight

Last Answer : Ans:(b)

Which frequency reuse method is less effective because of Faraday’s effect? A. Dual polarization B. Reducing antenna beamwidth C. Zonal rotation D. Spin stabilization

Description : Which frequency reuse method is less effective because of Faraday’s effect? A. Dual polarization B. Reducing antenna beamwidth C. Zonal rotation D. Spin stabilization

Last Answer : A. Dual polarization

What absorber in which efficient absorption is only possible over a very narrow band approaching 1.0 (total absorption)? A. Porous material B. Helmholtz resonator C. Panel Absorber D. Membrane absorber

Description : What absorber in which efficient absorption is only possible over a very narrow band approaching 1.0 (total absorption)? A. Porous material B. Helmholtz resonator C. Panel Absorber D. Membrane absorber

Last Answer : B. Helmholtz resonator

The control routine necessary to keep the satellite in position is referred to as A. station keeping B. station tracking C. station monitoring D. station maintaining

Description : The control routine necessary to keep the satellite in position is referred to as A. station keeping B. station tracking C. station monitoring D. station maintaining

Last Answer : A. station keeping

The key electronic component in a communications satellite is the A. telemetry equipment B. on-board computer C. command and control system D. transponder

Description : The key electronic component in a communications satellite is the A. telemetry equipment B. on-board computer C. command and control system D. transponder

Last Answer : D. transponder

What is the intensity of the magnetic field at the earth’s north pole? A. 32,000 nT B. 62,000 nT C. 32,000 µT D. 62,000 µT

Description : What is the intensity of the magnetic field at the earth’s north pole? A. 32,000 nT B. 62,000 nT C. 32,000 µT D. 62,000 µT

Last Answer : B. 62,000 nT

What is the approximate intensity of the magnetic field at the earth’s surface? A. 32,000 nT B. 62,000 nT C. 32,000 µT D. 62,000 µT

Description : What is the approximate intensity of the magnetic field at the earth’s surface? A. 32,000 nT B. 62,000 nT C. 32,000 µT D. 62,000 µT

Last Answer : A. 32,000 nT

A 1000W carrier is amplitude modulated to a depth of 85%. Calculate the total power of the modulated wave? A. 1361.25 W B. 680.62 W C. 1425 W D. 712.5 W

Description : A 1000W carrier is amplitude modulated to a depth of 85%. Calculate the total power of the modulated wave? A. 1361.25 W B. 680.62 W C. 1425 W D. 712.5 W

Last Answer : A. 1361.25 W

A coherent binary phase shift keyed BPSK transmitter operates at a bit rate of 20 Mbps with a carrier to noise ratio C/N of 8.8dB. Find Eb/No. A. 73 dB B. 62.4 dB C. 81.8 dB D. 8.8 dB

Description : A coherent binary phase shift keyed BPSK transmitter operates at a bit rate of 20 Mbps with a carrier to noise ratio C/N of 8.8dB. Find Eb/No. A. 73 dB B. 62.4 dB C. 81.8 dB D. 8.8 dB

Last Answer : D. 8.8 dB

______ is the time duration for one horizontal trace. A. 48µs B. 52 µs C. 62 µs D. 50 µs

Description : ______ is the time duration for one horizontal trace. A. 48µs B. 52 µs C. 62 µs D. 50 µs

Last Answer : B. 52 µs

The sound intensity received from the nearby jet plane is 12.6 µW/m2 and that from another jet plane some distance away is 0.45 µW/m2 . Find the relative loudness of the two. A. 14.0 dB B. 14.5dB C. 12.5 D. 14.5

Description : The sound intensity received from the nearby jet plane is 12.6 µW/m2 and that from another jet plane some distance away is 0.45 µW/m2 . Find the relative loudness of the two. A. 14.0 dB B. 14.5dB C. 12.5 D. 14.5

Last Answer : B. 14.5dB

The sound power level of a jet plane flying at a height of 1 km is 160 dB. What is the maximum sound pressure level on the ground directly below the plane assuming that the aircraft radiates sound equally in all directions? A. 59.1 dB B. 69.1 dB C. 79.1 dB D. 89.1 dB

Description : The sound power level of a jet plane flying at a height of 1 km is 160 dB. What is the maximum sound pressure level on the ground directly below the plane assuming that the aircraft radiates sound equally in all directions? A. 59.1 dB B. 69.1 dB C. 79.1 dB D. 89.1 dB

Last Answer : D. 89.1 dB

Satellite orientation in space is important for what two reasons?

Description : Satellite orientation in space is important for what two reasons?

Last Answer : To allow maximum solar cell exposure to the sun and satellite antenna exposure to earth terminals.

When spinning you lose balance because the fluids spin around in?

Description : When spinning you lose balance because the fluids spin around in?

Last Answer : In your organs of balance, the hemispherical canals, which arepart of your middle ear.

If you put spin on an object in motion in space will its path curve?

Description : If you put spin on an object in motion in space will its path curve?

Last Answer : It will conserve angular momentum and spin, and it will conserve linear momentum and travel straight. It will not curve if it’s not acted on by an external force.

What are the two kinds of Rotatory motion? (1) Spin and Vibrational motion (2) Spin and Orbital motion (3) Spin and Translatory motion (4) Spin and Projectile motion

Description : What are the two kinds of Rotatory motion? (1) Spin and Vibrational motion (2) Spin and Orbital motion (3) Spin and Translatory motion (4) Spin and Projectile motion

Last Answer : (2) Spin and Orbital motion Explanation: The motion of an object is said to be rotatory if the particles of the object rotate in a circular path with respect to an imaginary axis, known as the axis of rotation.

What are the two kinds of Rotatory motion? (1) Spin and Vibrational motion (2) Spin and Orbital motion (3) Spin and Translatory motion (4) Spin and Projectile motion

Description : What are the two kinds of Rotatory motion? (1) Spin and Vibrational motion (2) Spin and Orbital motion (3) Spin and Translatory motion (4) Spin and Projectile motion

Last Answer : (2) Spin and Orbital motion Explanation: Rotary motion (angular motion) of a body can take place about an axis that passes through the body or about an axis that does not pass through the body.

If in a motion, the axis of the rotation does not pass through the object, then the motion is called - (1) Spin motion (2) Oscillatory motion (3) Translatory motion (4) Orbital motion

Description : If in a motion, the axis of the rotation does not pass through the object, then the motion is called - (1) Spin motion (2) Oscillatory motion (3) Translatory motion (4) Orbital motion

Last Answer : (4) Orbital motion Explanation: The axis of the rotation does not pass through the object in orbital motion. It involves the quantum mechanical motion of rigid particles (such as electrons) about some other mass, or about them selves.

If in a motion, the axis of the rotation passes through an object, then the motion is called. (1) Orbital motion (2) Circulatory motion (3) Spin motion (4) Oscillatory motion

Description : If in a motion, the axis of the rotation passes through an object, then the motion is called. (1) Orbital motion (2) Circulatory motion (3) Spin motion (4) Oscillatory motion

Last Answer : (3) Spin motion Explanation: A rotation is a circular movement of an object around a center (or point) of rotation A threedimensional object al ways rotates around an imaginary line called a rotation axis.

Which of the two types of electron motion (orbital movement and electron spin) is more important in the explanation of magnetism?

Description : Which of the two types of electron motion (orbital movement and electron spin) is more important in the explanation of magnetism?

Last Answer : Electron spin.

Satellite-Switched Time-Division Multiple Access (SS/TDMA) is A. the method of determining whichdevice has access tothe transmission medium at any time. B. a medium access control technique for multiple access transmission media C. a form of TDMA in which circuit switching is used to dynamically changethechannel assignments D. All of theabove E. None of the above

Description : Satellite-Switched Time-Division Multiple Access (SS/TDMA) is A. the method of determining whichdevice has access tothe transmission medium at any time. B. a medium access control technique for ... switching is used to dynamically changethechannel assignments D. All of theabove E. None of the above

Last Answer : a form of TDMA in which circuit switching is used to dynamically changethechannel assignments

An operational audit differs in many ways from an audit of financial statements. Which of the following is the best example of these differences? a. Operation audits do not ordinarily result in the preparation of a report. b. The usual audit of financial statement covers the four basic financial statements whereas the operational audit is usually limited either the balance sheet or the income statement. c. The boundaries of an operation audit are often drawn from anorganization chart and are notlimited to a single accountingperiod.d. The operational audit deals withoperating profit while financial auditconsiders both the operating and netprofits.

Description : An operational audit differs in many ways from an audit of financial statements. Which of the following is the best example of these differences? a. Operation audits do not ordinarily ... audit deals with operating profit while financial audit considers both the operating and net profits.

Last Answer : The boundaries of an operation audit are often drawn from anorganization chart and are not limited to a single accounting period

Effects of Grain Orientation in Solar Cells?

Description : Effects of Grain Orientation in Solar Cells?

Last Answer : http://adsabs.harvard.edu/abs/2007JAP...101f3531B

A healthy 70 kg man eats a well balanced diet containing adequate calories and 62.5 g of high quality protein per day. Measured in grams of nitrogen, his daily nitrogen balance would be (A) +10 g (B) +6.25 g (C) 0 g (D) –6.25 g

Description : A healthy 70 kg man eats a well balanced diet containing adequate calories and 62.5 g of high quality protein per day. Measured in grams of nitrogen, his daily nitrogen balance would be (A) +10 g (B) +6.25 g (C) 0 g (D) –6.25 g

Last Answer : Answer : C

What is driven element? A. Always the rearmost element B. Always the forward most element C. The element fed by the transmission line D. The element connected to the rotator

Description : What is driven element? A. Always the rearmost element B. Always the forward most element C. The element fed by the transmission line D. The element connected to the rotator

Last Answer : C. The element fed by the transmission line

What is the meaning of forward power? A. The power traveling from the transmitter to the antenna. B. The power radiated from the top of an antenna system. C. The power produced during the positive half of an RF cycle. D. The power used to drive a linear amplifier.

Description : What is the meaning of forward power? A. The power traveling from the transmitter to the antenna. B. The power radiated from the top of an antenna system. C. The power produced during the positive half of an RF cycle. D. The power used to drive a linear amplifier.

Last Answer : A. The power traveling from the transmitter to the antenna.

Is your home powered by a solar panel system?

Description : Is your home powered by a solar panel system?

Last Answer : I am looking into it. My neighbor has a good set up and saves a ton of money. I live in New England, so there are lots of cloudy days. Here, we don’t have to be entirely off the grid if we switch to solar, the utility kicks in if the draw is too great on the panels.

Realistically, what can a 45 watt solar panel system be used for?

Description : Realistically, what can a 45 watt solar panel system be used for?

Last Answer : answer:More than I thought… youtube

Can the solar panel on an outdoor solar light be replaced if it stops working?

Description : Can the solar panel on an outdoor solar light be replaced if it stops working?

Last Answer : Not really, and it would be cheaper to get a new one. Not worth the trouble to replace it, I've taken apart loads of these things. Solar panels really don't stop working anyways, unless you ... power to them, the only thing is tha tperformance decreases when there's dust on them so keep it clean