Description : What is considered as the most advanced satellite system developed for cellular telephones? A. Iridium B. Globalstar C. ANIK D. Molniya
Last Answer : A. Iridium
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 : INTELSAT stands for A. Intel Satellite B. International Telephone Satellite C. International Telecommunications Satellite D. International Satellite
Last Answer : C. International Telecommunications Satellite
Description : The first satellite to receive and transmit simultaneously A. Intelsat I B. Agila I C. Syncorn I D. Telstar I
Last Answer : D. Telstar I
Description : Which of the following refers to the first active satellite? A. Telstar I B. Echo I C. Intelsat I D. Sputnik I
Last Answer : D. Sputnik I
Description : An automated ship-to-shore distress alerting system using satellites and advanced terrestrial communications systems. A. GPS B. Iridium system C. INMARSAT D. GMDSS
Last Answer : D. GMDSS
Description : What is the orbit of Motorola’s Iridium satellite system? A. Polar B. Equatorial C. Inclined elliptical D. Inclined equatorial
Last Answer : A. Polar
Description : One of the first satellite system catering personal based communications services scheduled for operation. A. Iridium system B. Plutonium system C. Indium system D. Gallium system
Last Answer : A. Iridium system
Description : Iridium satellites can provide data communications of up ____ bps data rate. A. 1200 B. 4800 C. 2400 D. 3840
Last Answer : C. 2400
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 : What is the orbit height of a GPS satellite? A. 10,898 nmi B. 10,898 mi C. 10,898 km D. 10, 898 m
Last Answer : A. 10,898 nmi
Description : 6. Who discovered the iridium layer and won Nobel Prize also? -Discoveries and Inventions
Last Answer : Explanation: Luis Alvarez discovered the iridium layer and also he had given a theory that dinosaurs were driven to extinction by the aftermath of a large meteorite impact on Earth. In 1968, he won Nobel Prize in Physics.
Description : What is the full form of 'INTELSAT' ? -How To ?
Last Answer : The full form of 'INTELSAT' is International Telecommunication Satellite
Last Answer : INTELSAT - International Telecommunication Satellite
Description : ______ is known to be the first satellite capable of receiving and transmitting simultaneously. A. Syncom I B. Telstar I C. Score D. Aguila
Last Answer : B. Telstar I
Description : Known as the satellite transmitted signal form a satellite transponder to earth’s station. A. Uplink B. Down link C. RHCP D. Vertically polarized
Last Answer : B. Down link
Description : Known to be the first satellite capable to receive and transmit simultaneously. A. Score B. Syncom I C. Telstar 1 D. Echo1
Last Answer : C. Telstar 1
Description : What is the angle of inclination of GPS system? A. 55˚ B. 65˚ C. 105˚ D. 45˚
Last Answer : A. 55
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 : 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
Description : The owner of AsiaSat 2 is A. Asia Satellite Telecommunications Company (ASTC) B. Japan Satellite System (JSAT) C. China Great Wall Industry Corporation D. Singapore Satellite Commision
Last Answer : C. China Great Wall Industry Corporation
Description : Satellite engine uses A. jet propulsion B. ion propulsion system C. liquid fuel D. solar jet
Last Answer : B. ion propulsion system
Description : Considered as the unsolved problem in satellite system A. Coverage B. Cost C. Access D. Privacy
Last Answer : D. Privacy
Description : What satellite system parameter represents the quality of a satellite or an earth station receiver? A. Gain-to-Equivalent Noise Temperature Ratio (G/Te) B. Energy of Bit-to-Noise Density Ratio (Eb/No) C. Carrier-to-Noise Density Ratio (C/No) D. Bit energy
Last Answer : A. Gain-to-Equivalent Noise Temperature Ratio (G/Te)
Description : In shipboard satellite dish antennas system, azimuth is referred as the _______. A. 0 to 90 degrees B. Vertical aiming of the antenna C. North to East D. Horizontal aiming of the antenna
Last Answer : D. Horizontal aiming of the antenna
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 : Satellite engine use A. liquid fuel B. jet propulsion C. ion propulsion system D. solar jet
Last Answer : C. ion propulsion system
Description : ECE Board Exam March 1996 It is a spacecraft placed in orbit around the earth carrying onboard microwave receiver and transmitting equipments. A. Fiber optic equipment B. Communications satellite C. Wireless radio system D. Coaxial cable syste
Last Answer : B. Communications satellite
Description : Which of the following is not a typical output from a GPS receiver? A. Latitude B. Speed C. Altitude D. Longitude
Last Answer : B. Speed
Description : What is the sign of iridium ?
Last Answer : Ir Iridium signal
Description : What is the chemical sign of iridium and what are the main properties of this substance?
Last Answer : Chemical symbol for iridium Ir. Main properties: Electronic structure: [Xe] 4f145d76s2 Atomic mass: 192,217 u ± 0.003 u Number: 77 Melting point: 2,447 ° C
Description : Name two elements that find wide application in transistor industry – (1) Silicon and Germanium (2) Carbon and Platinum (3) Iridium and Germanium (4) Tungsten and Platinum
Last Answer : (1) Silicon and Germanium Explanation: A transistor is a semiconductor device used to amplify and switch electronic signals and electrical power. Semiconductor material (date first used): the metalloids ... -germanium (1989), the allotrope of carbon graphene (research ongoing since 2004), etc.
Description : A 300mm diameter pipe, 5mm wall thickness is to be radiographed using the double wall single image technique. The source to be used is Iridium. Which of the following statements is true? a) ... problem with the technique d) Only the double wall, double image technique should be used with Iridium
Last Answer : c) There is no problem with the technique
Description : Which of the following commonly used radioactive isotopes has the longest half life? a) Iridium 192 b) Cobalt 60 c) Thulium 170 d) Ytterbium 169
Last Answer : b) Cobalt 60
Description : Which one of the following elements is not found in nature? w) Technetium x) Iridium y) Osmium z) Molybdenum
Last Answer : ANSWER: W -- TECHNETIUM
Description : Name the element discovered upon its extraction from pitchblende? w) platinum x) uranium y) iridium z) plutonium
Last Answer : ANSWER: X -- URANIUM
Description : Name two elements that find wide application in transistor industry (1) Silicon and Germanium (2) Carbon and Platinum (3) Iridium and Germanium (4) Tungsten and Platinum
Last Answer : Silicon and Germanium
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 : 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 : 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 : 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 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