What term is normally associated with specifying the location of a celestial body in space?
A. Constellation
B. Galaxy
C. Satellite
D. Ephemeris

1 Answer

Answer :

D. Ephemeris

Related questions

Description : What is the orbital period of each satellite in the GPS constellation? A. 6 h B. 12 h C. 5 h D. 15 h

Last Answer : B. 12 h

Description : Type of antenna which is normally used for satellite tracking service. A. Omni B. Helical C. Yagi D. Dipole

Last Answer : B. Helical

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

Description : The physical location of a satellite is determined by its A. distance from the earth B. latitude and longitude C. reference to the stars D. position relative to the sun

Last Answer : B. latitude and longitude

Description : Memories in which any location can be reached in a fixed amount of time after specifying its address is called ________ A. Sequential Access Memory B. Random Access Memory C. Quick Access Memory D. Mass storage

Last Answer : B. Random Access Memory

Description : What is the free space attenuation of a satellite communications system operating at 36,000 km above the earth at 5.0 GHz? A. 198 dB B. 202 dB C. 142 dB D. 138 dB

Last Answer : A. 198 dB

Description : When the elevation angle of a geostationary satellite is 23˚ and the transmitting frequency is 3840 MHz, what is the free space loss in dB? A. 196 dB B. 200 dB C. 150 dB D. 100 dB

Last Answer : A. 196 dB

Description : Station located on an object which is beyond and is intended to go beyond the major portion of the earth’s atmosphere. A. Terrestrial station B. Space station C. Satellite station D. Mobile satellite station

Last Answer : B. Space station

Description : Satellite system or part of a satellite system, consisting of only one satellite and the operating earth station. A. Satellite system B. Satellite network C. Space system D. Multi-satellite link

Last Answer : B. Satellite network

Description : When the light coming form a galaxy in the constellation Ursa Major was spectro graphically anaylised, it was found to contain a line in the calcium a

Last Answer : When the light coming form a galaxy in the constellation Ursa Major was spectro graphically anaylised, ... us? What is the velocity of recession?

Description : A satellite orbits around the earth due to a.Celestial force b.Gravitational force c.Centrifugal force d.Centripetal force e.All of the above

Last Answer : c. Centrifugal force

Description : The constellation of side effects consisting of thirst, polyuria, looseness of stools and fine tremors is characteristically associated with the following psychotropic drug: A. Amitriptyline B. Lithium carbonate C. Lorazepam D. Buspirone

Last Answer : B. Lithium carbonate

Description : The constellation of adverse effects associated with nonsteroidal antiinflammatory drugs include the following except: A. Sedation B. Gastric irritation C. Fluid retention D. Rashes

Last Answer : A. Sedation

Description : The nurse auscultates the apex beat at which of the following anatomical locations? a) Fifth intercostal space, midclavicular line The left ventricle is responsible for the apex beat or the point of ... of the xiphoid process will detect gastrointestinal sounds, but not the apex beat of the heart.

Last Answer : a) Fifth intercostal space, midclavicular line The left ventricle is responsible for the apex beat or the point of maximum impulse, which is normally palpable in the left midclavicular line of the chest wall at the fifth intercostal space.

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

Description : Units of Measurements in Space and on Celestial bodies?

Last Answer : I don’t understand your question.

Description : Name the extremely remote celestial object, emitting exceptionally large amounts of light energy, and typically having a star like image in a telescope. -Space

Last Answer : answer:

Description : What modulation is normally used with digital data? A. AM B. FM C. SSB D. QPSK

Last Answer : D. QPSK

Description : Which of the following frequencies is normally used for distress and safety communications? A. 4209.5 kHz B. 490 kHz C. 518 kHz D. 2174.5 kHz

Last Answer : D. 2174.5 kHz

Description : What instrument normally measures the virtual height of ionosphere? A. Ionosonde B. Altimeter C. Field meter D. Radar

Last Answer : A. Ionosonde

Description : What illumination factor is normally considered in computing parabolic antenna gain in microwave communications? A. 0.54 B. 0.65 C. 0.75 D. 0.85

Last Answer : A. 0.54

Description : Type of emission produced by one of the early radio transmitter in trains of damped RF ac waves where its oscillator is coupled to a long wire antenna, normally used in radio telegraph and having sidebands on its carrier. A. Digital emission B. Key emission C. Cycle emission D. Spark emission

Last Answer : D. Spark emission

Description : How does a SSB transmitter output power normally expressed? A. Average power B. In terms of peak envelop power C. In terms of peak-to-peak power D. Peak power

Last Answer : B. In terms of peak envelop power

Description : At what distance is VHF propagation normally limited? A. Around 500 miles B. Around 1500 miles C. Around 2000 miles D. Around 1000 miles

Last Answer : A. Around 500 miles

Description : At what distance is VHF propagation normally limited? A. Around 500 miles B. Around 1500 miles C. Around 2000 miles D. Around 1000 miles

Last Answer : A. Around 500 miles

Description : ECE Board Exam March 1996 The power of standard test tone is normally ____________. A. 1 dB B. 0 mW C. 1 mW D. 1 W

Last Answer : C. 1 mW

Description : Which does not use vertical polarization antenna? A. AM Broadcasting B. FM Broadcasting C. Mobile Communications D. Satellite Communications

Last Answer : B. FM Broadcasting

Description : Descending pass for a satellite means a pass from A. North to South B. South to North C. East to West D. West to East

Last Answer : A. North to South

Description : Which of the following is the most common application of satellite? A. Surveillance B. Military application C. Communications D. Newscasting

Last Answer : C. Communications

Description : What is the propagation delay when a signal is transmitter by an earth station to a geosynchronous satellite about 38,500 km above earth’s equator and then received by the same earth station? A. 256 msec B. 128 msec C. 300 msec D. 400 msec

Last Answer : A. 256 msec

Description : The first satellite launched for a geosynchronous orbit but unfortunately lost during orbit injection A. Syncom I B. Telstar I C. Sputnik I D. Early Bird I

Last Answer : A. Syncom I

Description : The first intelsat satellite that was launched in 1965 was named A. Early Bird I B. Echo C. Telstar I D. Courier

Last Answer : A. Early Bird I

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

Description : When the satellite are spaced 4˚ of the 360˚ complete circle, how many parking spaces or orbit slots are available? A. 90 B. 85 C. 95 D. 80

Last Answer : A. 90

Description : incidentally propose the geostationary scheme or orbit of the satellite in 1940s A. Arthur Clarke B. Carl Friedrich Gauss C. Samuel Morse D. Stephen Gray

Last Answer : A. Arthur Clarke

Description : The ________ angle measures the satellite position clockwise from the direction of true north. A. azimuth B. elevation C. depression D. critical

Last Answer : A. azimuth

Description : A satellite position is measured by its __________ angle with respect to the horizon. A. elevation B. depression C. azimuth D. critical

Last Answer : A. elevation

Description : The signal path from satellite to earth-based receiver. A. Downlink signal B. Uplink signal C. Incident signal D. Reflected signal

Last Answer : A. Downlink signal

Description : Designed to receive a signal from a transmitting station on the ground and retransmit it to a receiving station located elsewhere A. Communication satellite B. Repeater C. Relay station D. Transponder

Last Answer : A. Communication satellite

Description : The signal path from earth station satellite A. Uplink signal B. Reflected signal C. Incident signal D. Downlink signal

Last Answer : A. Uplink signal

Description : The round-trip propagation delay between two earth stations through a geosynchronous satellite is A. 500 to 600 ms B. 300 to 400 ms C. 600 to 700 ms D. 400 to 500 ms

Last Answer : A. 500 to 600 ms

Description : Satellite that provide services within a single country A. Domsat B. Comsat C. Regional D. Global

Last Answer : A. Domsat

Description : Satellite the orbits in a circular pattern with an angular velocity equal to that of the earth A. Geostationary B. Early Bird I C. Syncorn I D. Stationary satellite

Last Answer : A. Geostationary

Description : Essentially a satellite ___________ is a radio repeater in the sky A. transponder B. comparator C. duplexer D. billboard

Last Answer : A. transponder

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

Description : The maximum propagation delay of a geostationary satellite is A. 278 ms B. 239 ms C. 300 ms D. 250 ms

Last Answer : A. 278 ms

Description : The HPAs in most satellite are A. TWTs B. Klystrons C. Vacuum tubes D. Magnetrons

Last Answer : A. TWTs

Description : The satellite communications channels in a transponder are defined by the A. LNA B. bandpass filter C. mixer D. input signals

Last Answer : B. bandpass filter

Description : What is the typical bandwidth of a satellite band? A. 36 MHz B. 40 MHz C. 70 MHz D. 500 MHz

Last Answer : D. 500 MHz

Description : How can multiple earth stations share a satellite on the same frequencies? A. Frequency reuse B. Multiplexing C. Mixing D. Frequency hopping

Last Answer : A. Frequency reuse