1c651 Vol.4
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- 1.(601) Which system was National Aeronautics and Space Administration’s (NASA) attempt atballoon communications?
- A.
Echo.
- B.
Score.
- C.
Milstar.
- D.
Telstar.
- 2.(601) Which system was the first multi-national funded communications satellite positioned over the Atlantic Ocean?
- A.
Echo.
- B.
Score.
- C.
Milstar.
- D.
Telstar.
- 3.(601) Which satellite system is managed by Defense Information Systems Agency (DISA)?
- A.
Global Positioning System (GPS).
- B.
Wideband global satellite communication (SATCOM) system (WGS).
- C.
Defense Meteorological Satellite Program (DMSP).
- D.
Defense Satellite Communications System (DSCS).
- 4.(601) What satellite system uses a type of spread spectrum that repeats switching of frequencies during transmission?
- A.
Military Strategic and Tactical Relay (Milstar).
- B.
Global Positioning System (GPS).
- C.
Wideband global satellite communication (SATCOM) system (WGS).
- D.
Defense Satellite Communications System (DSCS).
- 5.(601) Which satellite system uses the government’s allocated 500 Megahertz of X-band and 1 Gigahertz of Ka-band spectrum?
- A.
Military Strategic and Tactical Relay (Milstar).
- B.
Global Positioning System (GPS).
- C.
Wideband global satellite communication (SATCOM) system (WGS).
- D.
Defense Satellite Communications System (DSCS).
- 6.(601) Which 24 satellite constellation provides navigation and timing information to military and civilian users worldwide?
- A.
Military Strategic and Tactical Relay (Milstar).
- B.
Global Positioning System (GPS).
- C.
Wideband global satellite communication (SATCOM) system (WGS).
- D.
Defense Meteorological Satellite Program (DMSP).
- 7.(601) The recurrence of global weather monitoring with the combination of day/night and dawn/dusk coverage is every
- A.
Two hours.
- B.
Four hours.
- C.
Six hours.
- D.
12 hours.
- 8.(602) Which main part of a satellite houses those systems that perform the primary mission?
- A.
Satellite bus.
- B.
Communications/payload.
- C.
Structures and mechanisms.
- D.
Telemetry, tracking, and control.
- 9.(602) Which is not part of the structures and mechanisms subsystem?
- A.
Booms used to deploy solar arrays.
- B.
Space launch vehicle’s payload fairing.
- C.
Components connecting various satellite sections together.
- D.
Equipment for separating the satellite from the launch vehicle.
- 10.(602) Which type of stress is the satellite’s structure subject to during handling and stacking sequences?
- A.
Testing.
- B.
Transport.
- C.
Pre-launch.
- D.
Manufacture.
- 11.(603) Which is a power storage component in the electrical power subsystem?
- A.
Solar arrays.
- B.
Rechargeable batteries.
- C.
Solar array drive assembly.
- D.
Radioisotope thermoelectric generators.
- 12.(603) What type of battery is used as a continuous energy source and cannot be recharged?
- A.
Primary.
- B.
Secondary.
- C.
Tertiary.
- D.
Fuel cell.
- 13.(603) What component is the heart of a fuel cell by generating electricity in the form of direct current?
- A.
Heat recovery.
- B.
Fuel cell stack.
- C.
Fuel processor.
- D.
Current inverters and conditioners.
- 14.(603) Which effect occurs when a solar cell converts sunlight into electricity?
- A.
Gyroscopic.
- B.
Photoelectric.
- C.
Thermoelectric.
- D.
Electromagnetic.
- 15.(603) What is used to protect solar cells from radiation damage?
- A.
Sun shields.
- B.
Special mirrors.
- C.
Thermal blankets.
- D.
Layers of quartz or sapphire.
- 16.(603) In what common method of solar cell construction are the solar cell edges overlapped?
- A.
Flat mounting.
- B.
Body mounting.
- C.
Paddle mounting.
- D.
Shingle mounting.
- 17.(604) Which rocket motor is simple to build, cheaper to produce, and provides additional thrust at liftoff?
- A.
Ion engine.
- B.
Gas-propellant.
- C.
Solid-propellant.
- D.
Liquid-propellant.
- 18.(604) What type of double-base-propellant has both an oxidizer and a fuel?
- A.
Composite.
- B.
Homogenous.
- C.
Heterogeneous.
- D.
Non-hygroscopic.
- 19.(604) Which is not an ideal characteristic of solid-propellants?
- A.
High density.
- B.
Hygroscopic.
- C.
Safe and easy to handle.
- D.
Smokeless and flashless.
- 20.(604) What type of liquid propellant adds a catalyst to increase the speed of reaction?
- A.
Bipropellant.
- B.
Tripropellant.
- C.
Solid propellant.
- D.
Monopropellant.
- 21.(604) Which is not an ideal characteristic of liquid-propellants?
- A.
Low freezing point (wide range of operation).
- B.
Low heat of combustion per unit of propellant mixture.
- C.
Low toxicity and corrosiveness (easy handling and storage).
- D.
Large availability of raw materials and ease of manufacture.
- 22.(604) What is a rough measure that calculates how fast a rocket can travel by how fast propellant is ejected out of the back of the rocket engine?
- A.
Specific density.
- B.
Specific impulse.
- C.
Hygroscopicity.
- D.
Ignition uniformity.
- 23.(605) What type of attitude control occurs when the interaction between the satellite and the environment produce natural stabilizing torque?
- A.
Passive control.
- B.
Spin stabilization.
- C.
Solar wind stabilization.
- D.
Active closed-loop control.
- 24.(605) What machine is a self-contained navigation system capable of determining a vehicle’s position in inertial space through the double integration of the output of accelerometers?
- A.
Gyroscope.
- B.
Axis generator.
- C.
Computer processors.
- D.
Inertial navigation unit.
- 25.(606) Which subsystem keeps a satellite within certain temperature limits?
- A.
Propulsion.
- B.
Electrical power.
- C.
Thermal control.
- D.
Telemetry, tracking, and control.
- 26.(606) What type of thermal control subsystem does not consume energy and possesses none or few moving parts?
- A.
Active.
- B.
Passive.
- C.
Radiators.
- D.
Cryogenic.
- 27.(606) What thermal control subsystem components are activated by temperature sensing transducers?
- A.
Vanes and louvers.
- B.
Mirrors and louvers.
- C.
Vanes and sun shields.
- D.
Mirrors and sun shields.
- 28.(607) Which antenna tracking method uses ephemeris loaded into a computer to generate antenna pointing angles?
- A.
Manual track.
- B.
Forced track.
- C.
Slave mode.
- D.
Autotrack.
- 29.(607) Which antenna tracking method uses a joystick to control the antenna?
- A.
Autotrack.
- B.
Slave mode.
- C.
Forced track.
- D.
Manual track.
- 30.(607) What is the process of pointing the ground antenna at a satellite that is emitting a signal?
- A.
Tracking.
- B.
Acquiring.
- C.
Maneuvering.
- D.
Commanding.
- 31.(607) What tracking method uses the ground equipment to transmit equally time-spaced pulses to the satellite?
- A.
Passive.
- B.
Passive beacon.
- C.
Beacon transponder.
- D.
Pseudo-random noise.
- 32.(607) What tracking method is a precise digital ranging signal modulated onto the uplink carrier?
- A.
Passive.
- B.
Passive beacon.
- C.
Beacon transponder.
- D.
Pseudo-random noise.
- 33.(608) Which component is not part of the payload system?
- A.
Fairing.
- B.
Satellite.
- C.
Platform.
- D.
Inertial navigation unit.
- 34.(608) Which Defense Meteorological Satellite Program’s (DMSP) space environment sensor measures geomagnetic fluctuations associated with geophysical phenomena?
- A.
Pitch.
- B.
Crosslink.
- C.
Magnetometer.
- D.
Temperature profiler.
- 35.(608) What is the data rate transmission on the Milstar payload?
- A.
1,200 bits per second.
- B.
2,400 bits per second.
- C.
4,800 bits per second.
- D.
9,200 bits per second.
- 36.(608) This subsystem of the Milstar payload sensor provides the downlink used to receive satellite telemetry?
- A.
Payload Software.
- B.
Payload Integration.
- C.
Super high frequency (SHF).
- D.
Extremely high frequency (EHF).
- 37.(608) Which wideband global SATCOM (WGS) system provides for X- and Ka-Band repeaters as well as X- and Ka-Band beacons, and a baseband digital switch?
- A.
Payload.
- B.
Satellite bus.
- C.
Structures and mechanisms.
- D.
Telemetry, tracking, and control.
- 38.(608) What is the rotational movement of a body that occurs about the longitudinal axis through the body?
- A.
Yaw.
- B.
Roll.
- C.
Stall.
- D.
Pitch.
- 39.(609) What is the elevation of an object that is directly overhead the tracking station?
- A.
45°.
- B.
90°.
- C.
120°.
- D.
180°.
- 40.(609) Which element of TEARR data uses the Doppler shift?
- A.
Time.
- B.
Azimuth.
- C.
Range.
- D.
Range rate.
- 41.(609) TEARR data is used immediately after a launch to gather information to determine the
- A.
Early orbit determination.
- B.
Weekly scheduling data.
- C.
Line of sight solution.
- D.
Re-entry assessment.
- 42.(609) Which object is considered obscura for a sensor’s line-of-sight (LOS)?
- A.
Cow in a pasture.
- B.
Metal fencing around radar.
- C.
Antenna nearby emitting radio frequency (RF) energy.
- D.
A mountain range with an elevation of 9,500 feet.
- 43.(609) Which action corrects a satellite period, inclination, and argument of perigee?
- A.
Station keeping maneuver.
- B.
On-orbit reconstitution.
- C.
End of life operations.
- D.
Disposal.
- 44.(609) Which orbit is used to place a satellite that is no longer working?
- A.
Transfer.
- B.
Near earth.
- C.
Disposal.
- D.
Rendezvous.
- 45.(609) Which type of reentry is used to minimize the risk of injury to civilian populations?
- A.
Retrieval.
- B.
Controlled.
- C.
Unscheduled.
- D.
Uncontrolled.
- 46.(609) What is the result when data from two objects that might collide is inserted into a modeling program?
- A.
Satellite Catalog (SATCAT).
- B.
Early Orbit Determination.
- C.
Time of Closest Approach (TCA).
- D.
Calculated Time of Approach.
- 47.(609) To minimize a satellite’s cross-section to avoid a collision you change its
- A.
Altitude.
- B.
Azimuth.
- C.
Range rate.
- D.
Inclination.
- 48.(610) How often is ranging conducted on each satellite?
- A.
At least once a day.
- B.
Scheduled once a week.
- C.
Only when the satellite is maneuvered.
- D.
Only when tasked with a command support.
- 49.(610) How is a pseudorandom noise (PRN) pattern generated for use in the ranging calculation?
- A.
JSpOC generates it.
- B.
Orbital analyst creates it.
- C.
Space operator creates it.
- D.
Automated Remote Tracking Station’s (ARTS) tracking, range, and rate receiver (TRR) ground station equipment creates it.
- 50.(610) Which squadron maintains the schedule for ranging supports of all Air Force Satellite Control Network Satellites?
- A.
19 Space Operations Squadron (SOPS).
- B.
21 SOPS.
- C.
22 SOPS.
- D.
23 SOPS.
- 51.(610) The ground station measures the distance of an object when the wave is reflected by multiplying the
- A.
Distance by speed of sound.
- B.
Distance by half the speed of sound.
- C.
Time by speed of light.
- D.
Time by half the speed of light.
- 52.(610) What portion of the signal is sent back to the ground station during satellite tracking?
- A.
Carrier wave.
- B.
Psuedorandom noise (PRN).
- C.
Space control, space force enhancement.
- D.
Electromagnetic radiation (EMR) pulse.
- 53.(611) Which area of the earth has a stronger gravitational pull on a satellite?
- A.
Hill.
- B.
Lake.
- C.
Ravine.
- D.
Mountain.
- 54.(611) Which limit is set so that a satellite does not reach the maximum amount of drift in any direction?
- A.
Hard.
- B.
Soft.
- C.
Medium.
- D.
Intermediate.
- 55.(611) How does a control center contact the space system to perform command and control functions?
- A.
Laser tracking.
- B.
Program tracking.
- C.
Phased array tracking.
- D.
Remote radio frequency (RF) tracking.
- 56.(611) Which maintenance support personnel take care of the files so that commanding can be performed?
- A.
Mission planners.
- B.
Orbital analysts.
- C.
Vehicle and system operators.
- D.
Vehicle and system engineers.
- 57.(611) Which type of maintenance is in charge of monitoring backup equipment to make sure it is ready for failover?
- A.
Payload maintenance.
- B.
User systems maintenance.
- C.
Space systems maintenance.
- D.
Ground system maintenance.
- 58.(612) What happens to the resolution and swath width of a satellite in a larger orbit?
- A.
Swath gets wider; resolution is lower.
- B.
Swath gets wider; resolution is greater.
- C.
Swath gets smaller; resolution is greater.
- D.
Swath gets smaller; resolution is lower.
- 59.(612) Which squadron operates the Operationally Responsive Space–1 (ORS–1) payload?
- A.
1 Space Operations Squadron (SOPS).
- B.
1 Space Experimentation Squadron (SES).
- C.
3 SOPS.
- D.
3 SES.
- 60.(612) Which squadron operates the advanced extremely high frequency (AEHF) platform?
- A.
1 Space Operations Squadron (SOPS).
- B.
3 SOPS.
- C.
4 SOPS.
- D.
6 SOPS.
- 61.(612) Which National Reconnaissance Office (NRO) payload is used for “heat scaring”?
- A.
Visible.
- B.
Infrared.
- C.
Signals Intelligence.
- D.
Synthetic Aperture Radar.
- 62.(612) Which system can detect what is underneath solid objects?
- A.
Visible.
- B.
Infrared.
- C.
Signals intelligence (SIGINT).
- D.
Synthetic aperture radar (SAR).
- 63.(613) In what year did the first evolved expendable launch vehicle (EELV) successful launch occur?
- A.
2001.
- B.
2002.
- C.
2003.
- D.
2004.
- 64.(613) Which launch provider has launch sites in the Marshall Islands and Kwajalein Atoll, and is headquartered in El Segundo California?
- A.
SpaceX.
- B.
Boeing.
- C.
Lockheed Martin.
- D.
Orbital Science Corporation.
- 65.(613) Which medium-lift rocket launched the first dog into space?
- A.
Zenit.
- B.
Dnepr.
- C.
Soyuz.
- D.
Proton.
- 66.(613) Which launch agency uses the Soyuz and the Vega as their primary launch vehicles?
- A.
Arianespace.
- B.
Guiana Space Center.
- C.
China National Space Administration.
- D.
Japan Aerospace Exploration Agency.
- 67.(613) Which space agency only launches into a retrograde orbit due to overflight of Arab countries?
- A.
Guiana Space Center.
- B.
Israeli launch facility.
- C.
Indian Space Research Organization.
- D.
Japan Aerospace Exploration Agency.
- 68.(614) Which space wing conducts sea-launched ballistic missile (SLBM) launches toward Ascension Island?
- A.
21 Space Wing.
- B.
30 Space Wing.
- C.
45 Space Wing.
- D.
50 Space Wing.
- 69.(614) Which squadron conducts the evolved expendable launch vehicle (EELV) operations of the Altas V and Delta IV boosters on the west coast?
- A.
4th Space Launch Squadron.
- B.
5th Space Launch Squadron.
- C.
45th Launch Support Squadron.
- D.
1st Air and Space Test Squadron.
- 70.(614) Which squadron supports the X–37B spaceplane landing operations?
- A.
4th Space Launch Squadron.
- B.
5th Space Launch Squadron.
- C.
45th Launch Support Squadron.
- D.
1st Air and Space Test Squadron.
- 71.(614) Which squadron supports the fueling and mating of the satellite on the launch vehicle?
- A.
4th Space Launch Squadron.
- B.
5th Space Launch Squadron.
- C.
45th Launch Support Squadron.
- D.
1st Air and Space Test Squadron.
- 72.(614) Which launch site allows for successful prograde and geosynchronous equatorial orbits?
- A.
Western Range.
- B.
Cape Canaveral.
- C.
Wallops Flight Facility.
- D.
Kodiak Launch Complex.
- 73.(614) At the 1st Range Operations Squadron, which of the following is not a 1C6X1 generation duty?
- A.
Preparing a mission folder.
- B.
Making the Go/No-Go decision.
- C.
Updating the launch support plan.
- D.
Conducting a launch readiness review.
- 74.(614) Which location is ideally suited to launch satellites into polar and retrograde orbits?
- A.
White Sands Missile Range.
- B.
Poker Flats Research Range.
- C.
Vandenberg Air Force Base.
- D.
Cape Canaveral Air Force Station.
- 75.(614) At the 2d Range Operations Squadron, which of the following is not a 1C6X1 execution duty?
- A.
Ensures all special use airspace is clear and controlled.
- B.
Ensures aircraft are available for post-mission operations.
- C.
Reports any violation of special use airspace by unauthorized aircraft.
- D.
Provides mobile sensors and aeronautical assets with countdown status updates.
- 76.(614) What 1C6X1 duty is unique to the Western Range?
- A.
Laser operations.
- B.
Launch operations.
- C.
Ballistic missile testing.
- D.
Aeronautical operations.
- 77.(614) What terminal countdown sequence includes last minute mechanical and electrical installations and vehicle securing?
- A.
Final countdown.
- B.
Integrated testing.
- C.
Ignition and liftoff.
- D.
Final status check.
- 78.(614) What is accomplished during the post-launch phase?
- A.
The mobile service tower is rolled away from the vehicle and secured.
- B.
Fire and safety personnel inspect the launch pad for fire and safety hazards.
- C.
A final check of the vehicle and vehicle power is switched to internal power.
- D.
A simulated flight verifies all functions from engine ignition to payload separation.
- 79.(615) Which Russian national satellite system has two levels of services, the primary service being solely for their military?
- A.
Iridium.
- B.
Meridian.
- C.
Meteosat.
- D.
Global Navigation Satellite System (GLONASS).
- 80.(615) What system gives China worldwide coverage independent of foreign control?
- A.
Iridium.
- B.
Beidou.
- C.
Meridian.
- D.
Global Navigation Satellite System (GLONASS).
- 81.(615) This Japanese civil satellite system has a figure eight orbit so that there is always a satellite positioned over Japan.
- A.
Iridium.
- B.
Galileo.
- C.
TerraSAR-X.
- D.
Quasi-Zenith Satellite System.
- 82.(615) What system warns of potential trouble spots around the world and monitors the environment?
- A.
Iridium.
- B.
Galileo.
- C.
National Reconnaissance Office (NRO) satellites.
- D.
United States Tracking and Data Relay system.
- 83.(615) Which single satellite system has a revisit period of 11 days?
- A.
Galileo.
- B.
Meridian.
- C.
TerraSAR-X.
- D.
Quasi-Zenith Satellite System.
- 84.(615) Which satellite system covers National Aeronautics and Space Administration’s (NASA) most critical low earth orbiting missions?
- A.
Skybox.
- B.
DIRECTV.
- C.
TerraSAR-X.
- D.
Tracking and Data Relay Satellite (TDRS) system.
- 85.(615) Which geostationary satellite system has four spacecraft all performing different missions?
- A.
Skybox.
- B.
Meridian.
- C.
Meteosat.
- D.
Fengyun.
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