正在加载图片...
A. transmit distress signal B. send response signal D. be inte by X-band rada 122. With the help of modern technology, ships are able to receive automated broadcast of safety B. almos C. somewhat and sometime D. from sunrise to sunset 123. International Safety Net and Navtex Services promulgate MSi by means of A FEC and ARQ B. satellite and terrestrial communications C. radio and telex D NBDP B 124. In the gmdss. msi broadcasts will be made on two dedicated systems and A NBDP/VHF radio B Inmarsat safety Net/NAVTEX C Safety service /Inmarsat-A D Long range/short range 125. Ships at sea are in urgent need of msi because they are various kinds of dange A subject for B liable to C. easy to meet D. always encounter 126. The NaVTEX receiver can be mounted on A. on the bridge B. in the coast station C. on the forecastle D. on starboard side 127. The distance between the two Navtex stations with the same bl character should be not nautical miles B.400 D. I 128 NAVTEX transmissions have a designed range of about nautical miles A.300 B.400 C.500 D.600 129. The transmitter identification character Bl is a single unique letter which is allocated to each NAVTEX A B. SES C CES D. Transmitter 130. In NAVTEX service, the subject indicate character B means B navigational warnings C. search and rescue information D. meteorol 131 In NAVTEX service, VITAL warnings will by transmitting station A. be transmitted at once though the frequency is not clear B be transmitted as soon as the frequency is cleared coordinately C. be transmitted at its scheduled transmissions D. be transmitted at next scheduled transmissions B 133. The establishment of INMARSART as an independent organization marked a great step forward for maritime radio communications. What does"marked a great step "mean in the sentence A. To run faster than ever B. To go forward C. To march without stopping D. A significant symbol of a great improvement in maritime communication 134. In addition to meeting the requirement of Sea Al and A2, every ship engaged on voyage in Sea area A3 shall be provided with A MF radio installation with DSC B SES or hf with dSc C MF/HF radio telephone installation D. 2187.5KHz watch receiver B except the polar. operational satellites in the INMARSAT system covering the whole globe 135. There are egions10 A. transmit distress signal B. send response signal C. transmit the signal of ship’s position D. be interrogated by X-band radar D 122. With the help of modern technology, ships are able to receive automated broadcast of safety messages _____ . A. by day or at night B. almost round the clock C. somewhat and sometime D. from sunrise to sunset B 123. International SafetyNet and Navtex Services promulgate MSI by means of _____ . A. FEC and ARQ B. satellite and terrestrial communications C. radio and telex D. NBDP B 124. In the GMDSS, MSI broadcasts will be made on two dedicated systems: _____ and _____ . A. NBDP/VHF radio B. Inmarsat safetyNet/NAVTEX C. Safety service / Inmarsat-A D. Long range / short range B 125. Ships at sea are in urgent need of MSI because they are _____ various kinds of danger . A. subject for B. liable to C. easy to meet D. always encounter C 126. The NAVTEX receiver can be mounted on _____ . A. on the bridge B. in the coast station C. on the forecastle D. on starboard side A 127. The distance between the two Navtex stations with the same B1 character should be not exceed _____ nautical miles . A. 400 B. 400 C. 450 D. 180 A 128. NAVTEX transmissions have a designed range of about _____ nautical miles . A. 300 B. 400 C. 500 D. 600 B 129. The transmitter identification character B1 is a single unique letter which is allocated to each NAVTEX _____ . A. receiver B. SES C. CES D. Transmitter D 130. In NAVTEX service, the subject indicate character B means _____ . A. meteorological warnings B. navigational warnings C. search and rescue information D. meteorological forecast A 131. In NAVTEX service, VITAL warnings will _____ by transmitting station . A. be transmitted at once though the frequency is not clear B. be transmitted as soon as the frequency is cleared coordinately C. be transmitted at its scheduled transmissions D. be transmitted at next scheduled transmissions B 133. The establishment of INMARSART as an independent organization marked a great step forward for maritime radio communications. What does “marked a great step” mean in the sentence ? A. To run faster than ever B. To go forward C. To march without stopping D. A significant symbol of a great improvement in maritime communication. D 134. In addition to meeting the requirement of Sea A1 and A2, every ship engaged on voyage in Sea area A3 shall be provided with _____ . A. MF radio installation with DSC B. SES or HF with DSC C. MF/HF radio telephone installation D. 2187.5KHz watch receiver B 135. There are _____ operational satellites in the INMARSAT system covering the whole globe except the polar regions
<<向上翻页向下翻页>>
©2008-现在 cucdc.com 高等教育资讯网 版权所有