Subelement 3A -- Operating procedures 1] What is facsimile? a} The transmission of characters by radioteletype that form a picture when printed. b} The transmission of still pictures by slow-scan television. c} The transmission of video by television. d} The transmission of printed pictures for permanent display on paper.@@ 2] What is the standard scan rate for VHF 137 MHz polar orbiting weather facsimile reception? a} 240 lines per minute.@@ b} 50 lines per minute. c} 150 lines per second. d} 60 lines per second. 3] What is the standard scan rate for high-frequency 3 MHz-23 MHz weather facsimile reception from associated shore stations? a} 240 lines per minute. b} 120 lines per minute.@@ c} 150 lines per second. d} 60 lines per second. 4] The Distance Measuring Equipment (DME) measures the distance from the aircraft to the DME ground station. This is referred to as : a} The slant range.@@ b} DME bearing. c} Glide Slope angle of approach. d} Localizer course width. 5] What is an ascending pass for a low-earth-orbit communications satellite? a} A pass from west to east. b} A pass from east to west. c} A pass from south to north.@@ d} A pass from north to south. 6] What is a descending pass for a low-earth-orbit communications satellite? a} A pass from north to south.@@ b} A pass from west to east. c} A pass from east to west. d} A pass from south to north. 7] What is the period of a satellite? a} An orbital arc that extends from 60 degrees west longitude to 145 degrees west longitude. b} The point on an orbit where satellite height is minimum. c} The amount of time it takes for a satellite to complete one orbit.@@ d} The time it takes a satellite to travel from perigee to apogee. 8] What is the accuracy of a global positioning system (GPS) fix with selective availability (SA) turned on? a} 100 meters 95% of the time.@@ b} 100 feet 50% of the time. c} 150 meters 95% of the time. d} 10 feet 95% of the time. 9] What is the probable cause for a docked vessel to occasionally register speed and direction on a global positioning system (GPS) receiver? a} Interference entering the antenna cable. b} A misconnection to the associated electronic chart display. c} A loose coaxial cable connector in the antenna unit. d} A normal condition caused by Department of Defense (DOD) selective availability.@@ 10] What voice communications system will lead to a slight delay and possible echo in a telephone conversation? a} Propagational delay in communications through a geostationary satellite.@@ b} Acoustic delay and echo over cellular phone frequency. c} Propagational delays and echoes on low-earth-orbit satellites. d} Propagational delays on marine VHF 157/162 MHz bands 11] Why does the received signal from a satellite, stabilized by a computer-pulsed electromagnet, exhibit a fairly rapid pulsed fading effect? a} Because the satellite is rotating.@@ b} Because of ionospheric absorption. c} Because of the satellite's low orbital altitude. d} Because of the Doppler effect. 12] The majority of airborne Distance Measuring Equipment systems automatically tune their transmitter and receiver frequencies to the paired ____ channel. a} VOR/marker beacon. b} VOR/LOC.@@ c} Marker beacon/glideslope. d} LOC/Glideslope. 13] The Distance Measuring Equipment (DME) ground station has a built-in delay between reception of an interrogation and transmission of the reply to allow : a} Someone to answer the call. b} The VOR to make a mechanical hook-up. c} Clear other traffic for a reply. d} Operation at close range.@@ 14] During soldering operations, "wetting" is : a} The action of the flux on the surface of the connection. b} The blending of solder and copper to form a new alloy.@@ c} The dipping of the connection in water to cool the connection. d} The operation of cooling the completed connection with flux. 15] One nautical mile is equal to how many statute miles? a} 1.5. b} 8.3. c} 1.73. d} 1.15.@@ 16] Solder most commonly used for hand soldering in electronics is : a} 50% tin 50% lead. b} 60% tin 40% lead.@@ c} 40% tin 60% lead. d} 30% tin 30% lead. 17] Which of the following is true about the soldering tip? a} One size soldering tip is right for all jobs, only the heat is changed. b} If the temperature of the soldering tip is the same in each case, the larger work mass will heat up faster than the smaller one will. c} Iron-plated soldering tips require no preparation before using. d} The soldering tip should be tinned during the initial heating up of the soldering iron.@@ 18] 3:00 PM Central Standard Time is: a} 1000 UTC. b} 2100 UTC.@@ c} 1800 UTC. d} 0300 UTC. 19] Which of the following is an acceptable method of solder removal from holes in a printed board? a} Compressed air. b} Toothpick. c} Soldering iron and a suction device.@@ d} Power drill. 20] 6:00 PM PST is equal to what time in UTC? a} 0200.@@ b} 1800. c} 2300. d} 1300. 21] The ideal method of removing insulation from wire is : a} The thermal stripper.@@ b} The pocket knife. c} A mechanical wire stripper. d} The scissor action stripping tool. 22] 2300 UTC time is: a} 2 PM CST. b} 3 PM PST.@@ c} 10 AM EST. d} 6 AM EST. 23] One statute mile equals how many nautical miles? a} 3.8. b} 1.5. c} 0.87.@@ d} 0.7. 24] When soldering electronic circuits be sure to: a} Wet wires with flux after soldering. b} Use maximum heat. c} Heat wires until wetting action begins.@@ d} Use maximum solder to insure a good bond. 25] What is the purpose of flux? a} Removes oxides from surfaces and prevents formation of oxides during soldering.@@ b} To act as a lubricant to aid the flow of the solder. c} Acid cleans printed circuit connections. d} To cool the soldered connection. 26] Which of these will be useful for insulation at UHF? a} Rubber. b} Mica.@@ c} Wax impregnated paper. d} Lead. 27] The condition of a lead-acid storage battery is determined with a(n): a} Hygrometer. b} Manometer. c} FET. d} Hydrometer.@@ 28] Lines drawn from the VOR station in a particular magnetic direction are : a} Radials.@@ b} Quadrants. c} Bearings. d} Headings. 29] The horizontal dipole VOR transmit antenna rotates at ____ revolutions per second. a} 60. b} 2400. c} 30.@@ d} 1800. 30] The direction from the aircraft's nose to the VOR station is referred to as the : a} Heading. b} Bearing.@@ c} Deflection. d} Inclination. 31] All directions associated with a VOR station are related to: a} North pole. b} North star. c} Magnetic north.@@ d} None of these. 32] If a shunt motor, running with a load, has its shunt field opened, how would this affect the speed of the motor? a} Slow down. b} Stop suddenly. c} Speed up.@@ d} Unaffected. 33] On runway approach, an ILS Localizer shows : a} Deviation left or right of runway center line.@@ b} Deviation up and down from ground speed. c} Deviation percentage from authorized ground speed. d} Wind speed along runway. 34] What radio navigation aid determines the distance from an aircraft to a selected VORTAC station by measuring the length of time the radio signal takes to travel to and from the station? a} Radar. b} Loran C. c} Distance Marking (DM). d} Distance Measuring Equipment (DME).@@ 35] Which of the following is a feature of an Instrument Landing System (ILS)? a} Localizer: shows aircraft deviation horizontally from center of runway.@@ b} Altimeter: shows aircraft height above sea-level. c} VHF Communications: provide communications to aircraft. d} Distance Measuring Equipment: shows aircraft distance to VORTAC station. 36] Why do we tin component leads? a} It helps to oxidize the wires. b} Prevents rusting of circuit board. c} Decreases heating time and aids in connection.@@ d} Provides ample wetting for good connection. 37] What is the purpose of using a small amount of solder on the tip of a soldering iron just prior to making a connection? a} Removes oxidation. b} Burns up flux. c} Increases solder temperature. d} Aids in wetting the wires.@@ 38] What occurs if the load is removed from an operating series DC motor? a} It will stop running. b} Speed will increase slightly. c} No change occurs. d} It will accelerate until it flies apart.@@ 39] Why are concentric transmission lines sometimes filled with nitrogen? a} Reduces resistance at high frequencies. b} Prevent water damage underground. c} Keep moisture out and prevent oxidation.@@ d} Reduce microwave line losses. 40] Nitrogen is placed in transmission lines to : a} Improve the "skin-effect" of microwaves. b} Reduce arcing in the line. c} Reduce the standing wave ratio of the line. d} Prevent moisture from entering the line.@@