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.
Correct Answer
A. Echo. -
- 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.
Correct Answer
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).
Correct Answer
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).
Correct Answer
A. Military Strategic and Tactical Relay (Milstar). -
- 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).
Correct Answer
C. Wideband global satellite communication (SATCOM) system (WGS). -
- 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).
Correct Answer
B. Global Positioning System (GPS). -
- 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.
Correct Answer
C. Six 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.
Correct Answer
B. Communications/payload. -
- 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.
Correct Answer
B. Space launch vehicle’s payload fairing. -
- 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.
Correct Answer
C. Pre-launch. -
- 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.
Correct Answer
B. Rechargeable batteries. -
- 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.
Correct Answer
A. Primary. -
- 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.
Correct Answer
B. Fuel cell stack. -
- 14.
(603) Which effect occurs when a solar cell converts sunlight into electricity?
- A.
Gyroscopic.
- B.
Photoelectric.
- C.
Thermoelectric.
- D.
Electromagnetic.
Correct Answer
B. Photoelectric. -
- 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.
Correct Answer
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.
Correct Answer
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.
Correct Answer
C. Solid-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.
Correct Answer
B. Homogenous. -
- 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.
Correct Answer
B. Hygroscopic. -
- 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.
Correct Answer
A. Bipropellant. -
- 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.
Correct Answer
B. Low heat of combustion per unit of propellant mixture. -
- 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.
Correct Answer
B. Specific impulse. -
- 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.
Correct Answer
A. Passive 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.
Correct Answer
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.
Correct Answer
C. Thermal 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.
Correct Answer
B. Passive. -
- 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.
Correct Answer
A. Vanes and louvers. -
- 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.
Correct Answer
C. Slave mode. -
- 29.
(607) Which antenna tracking method uses a joystick to control the antenna?
- A.
Autotrack.
- B.
Slave mode.
- C.
Forced track.
- D.
Manual track.
Correct Answer
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.
Correct Answer
B. Acquiring. -
- 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.
Correct Answer
A. Passive. -
- 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.
Correct Answer
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.
Correct Answer
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.
Correct Answer
C. Magnetometer. -
- 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.
Correct Answer
B. 2,400 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).
Correct Answer
C. Super high frequency (SHF). -
- 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.
Correct Answer
A. Payload. -
- 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.
Correct Answer
B. Roll. -
- 39.
(609) What is the elevation of an object that is directly overhead the tracking station?
- A.
45°.
- B.
90°.
- C.
120°.
- D.
180°.
Correct Answer
B. 90°. -
- 40.
(609) Which element of TEARR data uses the Doppler shift?
- A.
Time.
- B.
Azimuth.
- C.
Range.
- D.
Range rate.
Correct Answer
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.
Correct Answer
A. Early orbit determination. -
- 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.
Correct Answer
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.
Correct Answer
A. Station keeping maneuver. -
- 44.
(609) Which orbit is used to place a satellite that is no longer working?
- A.
Transfer.
- B.
Near earth.
- C.
Disposal.
- D.
Rendezvous.
Correct Answer
C. Disposal. -
- 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.
Correct Answer
B. Controlled. -
- 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.
Correct Answer
C. Time of Closest Approach (TCA). -
- 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.
Correct Answer
A. Altitude. -
- 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.
Correct Answer
A. At least once a day. -
- 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.
Correct Answer
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.
Correct Answer
C. 22 SOPS. -
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Jul 19, 2018Quiz Edited by
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