question_data = `{
    "title": "Test 7 GOC Wave propagation 1",
    "buttonText": "Klicka här för att rätta",
    "questions": [{
            "number": "1",
            "question": "When choosing an HF band for a specific range, one of the guidelines is ",
            "correct": "b",
            "answer": [
                {
                    "label": "a",
                    "text": "that the range of 2 MHz transmission is greater by day "
                }, 
                {
                    "label": "b",
                    "text": " to use a higher frequency band by day; a lower band by night "
                }, 
                {
                    "label": "c",
                    "text": "to use a lower freqeuncy band by day; a higher frequency by night "
                }, 
                {
                    "label": "d",
                    "text": "that ducting can increase the range "
                }]
        }, {
            "number": "2",
            "question": " The communications most affected by antenna height are",
            "correct": "c",
            "answer": [
                {
                    "label": "a",
                    "text": "HF "
                }, 
                {
                    "label": "b",
                    "text": " Sattelite "
                }, 
                {
                    "label": "c",
                    "text": " VHF "
                }, 
                {
                    "label": "d",
                    "text": " MF "
                }]
        }, {
            "number": "3",
            "question": "The main path of propagation for 24-hour communication on an 8 MHz  ",
            "correct": "c",
            "answer": [
                {
                    "label": "a",
                    "text": "troposcatter  "
                }, 
                {
                    "label": "b",
                    "text": " direct wave (line of sight) "
                }, 
                {
                    "label": "c",
                    "text": " sky wave"
                }, 
                {
                    "label": "d",
                    "text": "ground wave  "
                }]
        }, {
            "number": "4",
            "question": " Sky-wave propagation is an important feature of 24-hour communication on ",
            "correct": "d",
            "answer": [
                {
                    "label": "a",
                    "text": " 2187.5 kHz "
                }, 
                {
                    "label": "b",
                    "text": " 121.5 MHz  "
                }, 
                {
                    "label": "c",
                    "text": "Ch-70 "
                }, 
                {
                    "label": "d",
                    "text": "8414.5 kHz  "
                }]
        }, { 
            "number": "5",
            "question": "The propagation path used by satellite EPIRB equipment is  ",
            "correct": "b",
            "answer": [
                {
                    "label": "a",
                    "text": "sky wave  "
                }, 
                {
                    "label": "b",
                    "text": " direct wave (line of sight)  "
                }, 
                {
                    "label": "c",
                    "text": " relay wave  "
                },
                {
                    "label": "d",
                    "text": "ground wave "
                }]
        }, {
            "number": "6",
            "question": " Line-of-sight propagation would mainly involve ",
            "correct": "d",
            "answer": [
                {
                    "label": "a",
                    "text": " Navtex broadcasts  "
                }, 
                {
                    "label": "b",
                    "text": "communications on HF  "
                }, 
                {
                    "label": "c",
                    "text": "communications on MF   "
                }, 
                {
                    "label": "d",
                    "text": "AIS-SART, EPIRB, Inmarsat communications  "
                }]
        }, {
            "number": "7",
            "question": " The main propagation path for 24-hour communications on an MF radio  ",
            "correct": "a",
            "answer": [
                {
                    "label": "a",
                    "text": " ground wave "
                }, 
                {
                    "label": "b",
                    "text": "sky wave  "
                }, 
                {
                    "label": "c",
                    "text": "space wave  "
                }, 
                {
                    "label": "d",
                    "text": " direct wave (line of sight) "
                }]
        }, {
            "number": "8",
            "question": " The propagation path for signals from a VHF radio, under normal atmospheric conditions, would be   ",
            "correct": "c",
            "answer": [
                {
                    "label": "a",
                    "text": " relay wave "
                }, 
                {
                    "label": "b",
                    "text": "ground wave   "
                }, 
                {
                    "label": "c",
                    "text": "direct wave (line of sight)  "
                }, 
                {
                    "label": "d",
                    "text": " sky wave "
                }]
        }, {
            "number": "9",
            "question": " Ground-wave propagation is an important feature of communications on ",
            "correct": "d",
            "answer": [
                {
                    "label": "a",
                    "text": "8291 kHz  "
                }, 
                {
                    "label": "b",
                    "text": "Ch.16 VHF  "
                }, 
                {
                    "label": "c",
                    "text": "1.6 GHz   "
                }, 
                {
                    "label": "d",
                    "text": "2182 kHz  "
                }]
        }, {
            "number": "10",
            "question": " In Marine VHF radio operation, 'capture effect' causes VHF receivers to: ",
            "correct": "a",
            "answer": [
                {
                    "label": "a",
                    "text": "'lock-on' to the strongest signal, rejecting all others  "
                }, 
                {
                    "label": "b",
                    "text": "'lock-on' to any signal within 30-40 miles  "
                }, 
                {
                    "label": "c",
                    "text": " reject all signals beyond 30-40 miles "
                }, 
                {
                    "label": "d",
                    "text": "'lock- on' to any transmitting Coast Station, rejecting ship transmissions  "
                }]
        }, {
            "number": "11",
            "question": "One of the guidelines when choosing an High Frequency (HF) band for a specific range, is  ",
            "correct": "c",
            "answer": [
                {
                    "label": "a",
                    "text": "to have the antenna as high as possible   "
                }, 
                {
                    "label": "b",
                    "text": " use a lower band by day "
                }, 
                {
                    "label": "c",
                    "text": " use a higher band by day  "
                }, 
                {
                    "label": "d",
                    "text": "the greater the distance, the lower the required band  "
                }]
        }, {
            "number": "12",
            "question": " The propagation path for MF NAVTEX signals during daylight is ",
            "correct": "b",
            "answer": [
                {
                    "label": "a",
                    "text": " relay wave "
                }, 
                {
                    "label": "b",
                    "text": "ground wave   "
                }, 
                {
                    "label": "c",
                    "text": " sky wave "
                }, 
                {
                    "label": "d",
                    "text": "direct wave (line of sight)   "
                }]
        }, {
            "number": "13",
            "question": " The propagation path used by HF signals, from the SSB radio, to achieve long-range communications, is  ",
            "correct": "a",
            "answer": [
                {
                    "label": "a",
                    "text": " sky wave "
                }, 
                {
                    "label": "b",
                    "text": "ground wave   "
                }, 
                {
                    "label": "c",
                    "text": "direct wave (line of sight)  "
                }, 
                {
                    "label": "d",
                    "text": " relay wave"
                }]
        }, {
            "number": "14",
            "question": " The propagation path taken by a radio signal on VHF Ch.16 is ",
            "correct": "b",
            "answer": [
                {
                    "label": "a",
                    "text": " inverted wave"
                }, 
                {
                    "label": "b",
                    "text": " direct wave (line of sight) "
                }, 
                {
                    "label": "c",
                    "text": " ground wave "
                }, 
                {
                    "label": "d",
                    "text": " sky wave "
                }]
        }, {
            "number": "15",
            "question": " The propagation path used by Inmarsat equipment is ",
            "correct": "a",
            "answer": [
                {
                    "label": "a",
                    "text": " direct wave (line of sight)  "
                }, 
                {
                    "label": "b",
                    "text": " relay wave  "
                }, 
                {
                    "label": "c",
                    "text": "sky wave  "
                }, 
                {
                    "label": "d",
                    "text": "ground wave  "
                }]
        }, {
            "number": "16",
            "question": "The class of emission/mode used for RT (voice) operation on MF is ",
            "correct": "a",
            "answer": [
                {
                    "label": "a",
                    "text": " SSB "
                }, 
                {
                    "label": "b",
                    "text": "FSK  "
                }, 
                {
                    "label": "c",
                    "text": " DSB "
                }, 
                {
                    "label": "d",
                    "text": "ISB  "
                }]
        }, {
            "number": "17",
            "question": " A ship makes a Routine manual DSC ship-to-shore call but receives no response. Further calls may be made ",
            "correct": "a",
            "answer": [
                {
                    "label": "a",
                    "text": " after 5 minutes, with the next alert 15 minutes later "
                }, 
                {
                    "label": "b",
                    "text": "at 2 minutes intervals "
                }, 
                {
                    "label": "c",
                    "text": " at 5 minute intervals "
                }, 
                {
                    "label": "d",
                    "text": "after 2 minutes with the next alert 3 minutes later "
                }]
        }, {
            "number": "18",
            "question": "You are in GMDSS Sea Area A2 and have received a MF DSC Distress Alert   ",
            "correct": "c",
            "answer": [
                {
                    "label": "a",
                    "text": "wait a short period, then acknowledge by DSC on 2187.5 kHz  "
                }, 
                {
                    "label": "b",
                    "text": " acknowledge immediately by RT on 2187.5 kHz "
                }, 
                {
                    "label": "c",
                    "text": " wait a short period, then acknowledge by RT on 2182 kHz  "
                }, 
                {
                    "label": "d",
                    "text": "acknowledge immediately by RT on 2182 kHz  "
                }]
        }, {
            "number": "19",
            "question": " Insulators are included in an antenna system to provide a ",
            "correct": "d",
            "answer": [
                {
                    "label": "a",
                    "text": " low breaking strain  "
                }, 
                {
                    "label": "b",
                    "text": "high breaking strain   "
                }, 
                {
                    "label": "c",
                    "text": " low resistance path to earth "
                }, 
                {
                    "label": "d",
                    "text": " high resistance path to earth  "
                }]
        }, {
            "number": "20",
            "question": "The correct safety action when the ship is involved in a thunderstorm is:  ",
            "correct": "d",
            "answer": [
                {
                    "label": "a",
                    "text": " switch off the transceiver and remove the fuse "
                }, 
                {
                    "label": "b",
                    "text": " use low power for transmission "
                }, 
                {
                    "label": "c",
                    "text": " open the transmitter circuit "
                }, 
                {
                    "label": "d",
                    "text": " connect MF/HF aerials to ground"
                }]
        }]
}`;