question_data = `{ "title": "Test 14 GOC Wave Propagation 6", "buttonText": "Klicka här för att rätta", "questions": [{ "number": "1", "question": "A maritime Inmarsat-C installation would use ", "correct": "d", "answer": [ { "label": "a", "text": "a short wire antenna " }, { "label": "b", "text": "a parabolic dish antenna" }, { "label": "c", "text": "a directional antenna" }, { "label": "d", "text": "an omnidirectional antenna " }] }, { "number": "2", "question": "Your antenna tuner becomes totally inoperative. What would you do to obtain operation on both the 8 MHz and 22 MHz frequency bands? ", "correct": "a", "answer": [ { "label": "a", "text": "Bypass the antenna tuner. Use a straight whip or wire antenna approximately 9 meter long. " }, { "label": "b", "text": "Without an operating antenna tuner, transmission is impossible." }, { "label": "c", "text": "It is impossible to obtain operation on 2 different HF bands, without an operating antenna tuner. " }, { "label": "d", "text": "Bypass the antenna tuner and shorten the whip to 4,5 meter. " }] }, { "number": "3", "question": "Which of the following conditions would be a symptom of malfunction in a 2182 kHz radiotelephone system which must be reported to the Master? ", "correct": "d", "answer": [ { "label": "a", "text": "Much lower noise level observed during daytime operation. " }, { "label": "b", "text": "When testing a radiotelephone alarm on 2182 kHz into an artificial antenna, the Distress frequency watch receiver becomes unmuted, an improper testing procedure. " }, { "label": "c", "text": "Failure to contact a shore station 600 nautical miles distant during daytime operation " }, { "label": "d", "text": "No indication of power output when speaking into the microphone. " }] }, { "number": "4", "question": " Your MF-HF whip antenna breaks off and is carried away in a storm.What would you do to regain operation on MF-HF frequencies? ", "correct": "c", "answer": [ { "label": "a", "text": "Rig a wire antenna 3 -5 meter long from the antenna tuner to the highest vertical support. " }, { "label": "b", "text": "Rig a wire antenna 3 - 5 ft long from the antenna tuner to the highest vertical support. " }, { "label": "c", "text": "Rig a wire antenna approximately 10 meter long per the equipment instruction manual " }, { "label": "d", "text": "Rig a long wire antenna at least 60 meter long. " }] }, { "number": "5", "question": "What is the normal specific gravity of a fully charged lead acid battery cell? ", "correct": "b", "answer": [ { "label": "a", "text": "1.375 Voltmeter " }, { "label": "b", "text": "1.280 Hydrometer " }, { "label": "c", "text": "1.180 Voltmeter " }, { "label": "d", "text": "1.210 Hydrometer " }] }, { "number": "6", "question": "What is a gel cell battery and how is it maintained and cared for? ", "correct": "d", "answer": [ { "label": "a", "text": "Gel cell batteries are lead acid with a solid electrolyte; each cell is checked with a voltmeter. " }, { "label": "b", "text": "Gel cell batteries are NICARD with a solid electrolyte; each cell is checked with a voltmeter. " }, { "label": "c", "text": "Gel cell batteries are have special liquid electrolytes; they are charged with the NICAD charging rates and voltages" }, { "label": "d", "text": "Gel cell batteries are typically sealed; special charging rates and voltages may be required. " }] }, { "number": "7", "question": "An incoming DSC Distress alert on 8414.5 kHz will have what result? ", "correct": "d", "answer": [ { "label": "a", "text": "The Distress information contained in the alert will be sent to the data directory. " }, { "label": "b", "text": "The particulars of the alert may be printed out. " }, { "label": "c", "text": "The DSC controller will emit both an audible and visual alarm. " }, { "label": "d", "text": "All of these answers would typically occur. " }] }, { "number": "8", "question": "An incoming Distress priority 16 MHz DSC call requesting J3E emission might automatically switch to what frequency? ", "correct": "a", "answer": [ { "label": "a", "text": "16420.0 MHz " }, { "label": "b", "text": "16500.0 kHz " }, { "label": "c", "text": "16696.5 kHz " }, { "label": "d", "text": "16804.5 kHz " }] }, { "number": "9", "question": "A DSC Distress call is received by your vessel and your transceiver frequency display reads:Transmit = 4207.5 kHz and Receive = 4207.5 kHz with J3E emission-- what information can you infer from this? ?", "correct": "a", "answer": [ { "label": "a", "text": "The DSC call requested voice on 4207.5 kHz simplex but the requested alternate frequency is improper. " }, { "label": "b", "text": "The DSC controller decoded the requested voice frequency 4207.5 kHz simplex and your DSC controller has automatically set-up your transceiver and therefore the requested alternate frequency is correct. " }, { "label": "c", "text": "The DSC call name in on 4MHz DSC. You should set-up your transmitter and respond on the appropriate voice follow-on frequency of 4177.5 kHz. " }, { "label": "d", "text": "The DSC call came in on 4 MHz DSC. You should set-up your transmitter and respond on the appropriate voice follow-on frequency of 4207.5 kHz. " }] }, { "number": "10", "question": "The Distress Alarm sounds and the screen readout no longer contains the particulars of the Distress: ", "correct": "b", "answer": [ { "label": "a", "text": "The particulars are rarely routed to the printer so it is of no use to examine the printer. " }, { "label": "b", "text": "Examine the Received Data Directory or the printer to recover the information. " }, { "label": "c", "text": "Examine the Transmitted Data Directory or the printer to recover the information. " }, { "label": "d", "text": "Call the Distress vessel on the DSC frequency and request a retransmission. " }] }, { "number": "11", "question": "How can a GMDSS operator determine the best frequency band to choose for a SITOR (NBDP)transmission to a shore station? ", "correct": "b", "answer": [ { "label": "a", "text": "By consulting propagation tables. " }, { "label": "b", "text": "Listen to shore station 'free signals' and choose the band with the strongest signal. " }, { "label": "c", "text": "If static interference is present, try lower bands first. " }, { "label": "d", "text": "During nighttime, choose higher frequencies. Choose lower frequencies in the daytime. " }] }, { "number": "12", "question": "At mid-day, what would be the best choice in attempting to communicate with a shore station some 85 M distant? ", "correct": "b", "answer": [ { "label": "a", "text": "VHF-FM" }, { "label": "b", "text": "MF-band " }, { "label": "c", "text": "22 MHz band " }, { "label": "d", "text": "16 MHz band " }] }, { "number": "13", "question": "A ship at anchor has been communicating with a shore station approximately 175 M distant on a frequency in the 4 MHz band through mid-morning. Toward the late afternoon and evening, what effect should be noticed? ", "correct": "b", "answer": [ { "label": "a", "text": "Communications should be maintained with slight improvement in the signal received from the shore station. " }, { "label": "b", "text": "Communications should gradually improve and peak at night and early morning. " }, { "label": "c", "text": "Communications should slowly deteriorate but may be continued throughout the night. " }, { "label": "d", "text": "Communications should gradually deteriorate and become impossible on this frequency by night" }] }, { "number": "14", "question": "A ship has been communicating effectively on 16 MHz during daylight hours with a shore station at a distance of 3000 M . Toward late afternoon and evening what effect would be noticed? ", "correct": "b", "answer": [ { "label": "a", "text": "Communications should be maintained with slight improvement in the signal received from the shore station. " }, { "label": "b", "text": "Communications should gradually deteriorate and become impossible on this frequency at night. " }, { "label": "c", "text": "The gray line effect will prevent communications after dark" }, { "label": "d", "text": "Communications should improve and peak at night. " }] }, { "number": "15", "question": "GMDSS operators should routinely focus on the factors affecting propagation in what priority? ", "correct": "c", "answer": [ { "label": "a", "text": "Sunspot cycle, distance & time of day, seasonal variations, solar flare alerts. " }, { "label": "b", "text": "Solar flare alerts, distance & time of day, sunspot cycle, seasonal variations. " }, { "label": "c", "text": "Distance & time of day, seasonal variations, sunspot cycle, solar flare alerts. " }, { "label": "d", "text": "Solar flare alerts, sunspot cycle, seasonal variations, distance & time of day. " }] }, { "number": "16", "question": "What would be the most appropriate HF bands for communicating from San Francisco to Taiwan or the Philippines? ", "correct": "c", "answer": [ { "label": "a", "text": "12 MHz during daylight at each end and 2 MHz when dark at each end. " }, { "label": "b", "text": "8 MHz during daylight hours and 16 MHz during darkness. " }, { "label": "c", "text": "16 or 22 MHz when daylight at each end and 8 MHz when dark at each end. " }, { "label": "d", "text": "6 MHz during daylight hours and 8 MHz during darkness" }] }, { "number": "17", "question": "GMDSS operators should learn which of the following propagation 'rules of thumb'? ", "correct": "a", "answer": [ { "label": "a", "text": "Longer distance = higher frequency, Shorter distance = lower frequency, Daytime = higher frequency, nighttime = lower frequency" }, { "label": "b", "text": "Longer distance = lower frequency, Shorter distance = higher frequency; Daytime = higher frequency, nighttime = lower frequency. " }, { "label": "c", "text": "Longer distance = lower frequency, Shorter distance = lower frequency, Daytime = lower frequency, nighttime = higher frequency. " }, { "label": "d", "text": "Longer distance = higher frequency, Shorter distance = higher frequency, Daytime = lower frequency, nighttime = higher frequency. " }] }, { "number": "18", "question": "FEC SITOR (NBDP) transmissions are normally used to? ", "correct": "b", "answer": [ { "label": "a", "text": "Receive Coast station traffic lists, NAVTEX and VHF MSI broadcasts. " }, { "label": "b", "text": "Receive HF MSI and NAVTEX. " }, { "label": "c", "text": "Receive weather messages, Coast Station traffic lists and company messages. " }, { "label": "d", "text": "Receive company communications sent through coast stations. " }] }, { "number": "19", "question": "If the vessel is experiencing atmospheric interference with NAVTEX broadcasts, especially in the tropics, the GMDSS operator should: ", "correct": "d", "answer": [ { "label": "a", "text": "Select one of the 6 MF MSI frequencies and set-up the transceiver in ARQ TELEX mode. " }, { "label": "b", "text": "Select one of the 6 HF MSI frequencies and set-up the transceiver in FEC TELEX mode. " }, { "label": "c", "text": "Select the MF MSI frequency dedicated to tropical MSI and set-up the transceiver in FEC TELEX mode. " }, { "label": "d", "text": "Select one of the 8 HF MSI frequencies and set-up the transceiver in FEC TELEX mode. " }] }, { "number": "20", "question": "If the vessel is beyond range of NAVTEX broadcasts and the Inmarsat-C system fails, the GMDSS operator must: ", "correct": "d", "answer": [ { "label": "a", "text": "Select 518 kHz ARQ TELEX on the MF/HF console to receive MSI. " }, { "label": "b", "text": "Request repairs of the Sat-C system and wait until within range of NAVTEX. " }, { "label": "c", "text": "Select 518 kHz FEC TELEX on the MF/HF console to receive MSI. " }, { "label": "d", "text": "Select an HF MSI frequency and FEC TELEX mode to receive MSI. " }] }] }`;