NOTES IN INMARSAT AND SIGNALS COMPILED BY: THRID MATE RODIEN E PACA REVIEWERFOR INMARSAT Inmarsat provides satellite coverage up to: a 70 degrees b 50 degrees *c 75 degrees An advantage in the use of inmarsat satellites over terrestrial communications: a enhanced group call b global communication *c both A and B In sending a telegram thru the inmarsat system to countries where there are no telex facilities, use 15+ to be assured of delivery as well as format in accordance with: a STCW b IMO *c CCITT Connects space segments with the national and international fixed telecommunications networks: *a land earth stations b satellite c network control center Year inmarsat became fully operational: *a 1982 b 1979 c 1985 Diameter of typical inmarsat LES steerable parabolic antenna: a between to meters b between to meters *c between 11 to 14 meters Official languages authorized by inmarsat for use in sending distress message: *a english b french c spanish Shore-to-ship communications from the satellite-to-ship: *a 1.6 GHz band b 4.0 GHz band c 1.5 GHz band Inmarsat provides communication for: a air b land c sea *d all of the above 10 Number of ocean region covered by inmarsat: *a four b three c five 11 Another name for ship earth station: a coast earth station b satellite control system *c mobile earth station 12 Located at the inmarsat hadquarters in london which monitors,coordinates 4/25/2016 4/25/2016 3M PACS NOTES IN INMARSAT AND SIGNALS COMPILED BY: THRID MATE RODIEN E PACA and controls the operational network activities of all the satellite in the network: *a Network control center (NCC) b land earth station (LES) c Network coordination station (NCS) 13 Ship-to-shore communications from SES to satellite: a GHz band b GHz band *c 1.6 GHz band 14 Ship-to-shore communication from the satellite to LES: *a GHz band b GHz band c 1.5 GHz band 15 Most economical facility of inmarsat A in transmitting volume data: a telex *b high speed data c facsimile 16 Shore-to-ship communication from LES to satellite *a GHz band b GHz band c 1.5 GHz band 17 Inmarsat council is compossed of: a 18 members b 20 members *c 22 members 18 Ocean code for telex in the Indian Ocean region; a 582 b 584 *c 583 19 Number of satellite control center in the inmarsat system; *a b c 20 Year Inmarsat was established: a 1982 b 1976 *c 1979 21 Inmarsat terminal/model which transmit information on store and forward: a Inmarsat A *b Inmarsat C c Inmarsat B 22 Inmarsat model under development for introduction in early 1992: *a Inmarsat B & M b Inmarsat A & C c Inmarsat A & P 23 Minimum investment share with inmarsat: a 0.10% = US $ 25,000 b 0.25% = US $ 50,000 *c 0.05% = US $ 18,000 24 Number of official languages adopted by inmarsat: a one b three 4/25/2016 4/25/2016 3M PACS NOTES IN INMARSAT AND SIGNALS COMPILED BY: THRID MATE RODIEN E PACA *c four 25 Computes and collects payments for the use of inmarsat satellite system: *a L.E.S owners b IMMARSAT c INMARSAT agent 26 Size in diameter of an Inmarsat A antenna: *a approx meter b approx meters c approx 0.5 meter 27 Ocean code for telephone in the Indian Ocean region: a 872 *b 873 c 874 28 Ocean code for telephone in the atlantic ocean region-East: a 884 *b 871 c 872 29 The emergency priority button shall only be used when the vessel; a sends an urgent message *b is in real distress c sends message everytime 30 A system of data transmission which Inmarsat-C had adopted where data received by LES/CES processed, and stored for retransmission: *a store and forward b direct transmission c processed transmission 31 Number of network coordination station in every ocean region covered by Inmarsat: *a one b two c three 32 Inmarsat service which uses the EGC system in broadcasting maritime safety information: a fleetNET b fishNET *c safetyNET 33 Inmarsat service which uses the EGC system in addressing commercial information in a single group call: *a fleetNET b safetyNET c fishNET 34 Inmarsat C facility which addresses messages to predetermined group of ships or vessels in both fixed and variable geographical areas: *a enhanced group call (EGC) b several calls c all vessels call 35 Speed of inmarsat satellite: a 10,000 MPH *b 7,000 MPH c 25,000 MPH 36 The four operational satellites of the Inmarsat system operate in geostationary orbit 35,700 Km in line with the; a poles *b equator c meridian 4/25/2016 4/25/2016 3M PACS NOTES IN INMARSAT AND SIGNALS COMPILED BY: THRID MATE RODIEN E PACA 37 Modern inmarsat antennas are equipped with: *a auto tracking b manual tracking c semi-manual tracking 38 Message which has the priority for transmission: a safety b urgent *c distress 39 Inmarsat terminals upon purchase should be: *a commissioned b use immediately c warmed-up 40 An inmarsat system components which assigns channel upon request from an Inmarsat terminal to gain access thru the system; a NCC b SCC *c NCS 41 Distress message priority code: a *b c 42 Number of network co-ordination station in the inmarsat system: a b *c 43 Currencies and exchange rates use in Inmarsat bills: *a Gold France and special drawing right b US$ dollar c Sterling pounds 44 An element of GMDSS: *a Inmarsat C b Maritex c SITOR 45 Number of network control centre in the Inmarsat system: a *b c 46 What should be done, when a vessel equiped with Inmarsat A enters a new Inmarsat satellite coverage: *a re-orient antenna with the satellite b contact the LES c call Inmarsat 47 Located in each ocean region which acts as a type of switch operator, assigning,controlling and monitoring all of the telephone and telex channels between the SESs and the CESs for its ocean region: *a Network coordination station b Coast Earth station c Network Control center 48 The horizontal movement of the antenna clockwise or counter clockwise is called: a azimuth angle *b azimuth movement c azimuth limit 49 With the enhanced group call facility that inmarsat C provides the number of ships which can receive the message being transmitted: 4/25/2016 4/25/2016 3M PACS NOTES IN INMARSAT AND SIGNALS COMPILED BY: THRID MATE RODIEN E PACA *a no limitation b has limitation c has specific number 50 Inmarsat terminal where facsimile facility is provided by LES thus there is no need to have a FAX machine for message to be received in FAX form: *a Inmarsat-C b Inmarsat-B c Inmarsat-A 51 Inmarsat C terminal transmits information rate at: a 2,400 BPS b 50 BPS *c 600 BPS 52 What should be done to obtain access with the inmarsat system with the use of Inmarsat-A: a Dial NCS ID b Dial NCC ID *c Dial LES ID 53 Inmarsat-A provides aside from telephony,facsimile,telex and: *a high speed data b low speed data c slow speed data 54 Inmarsat Duplex high speed data service which can be used for video conferencing: *a 64 kbitsec b 9.6 kbitsec c 56 kbitsec 55 Capable of receiving Maritime safety information automatically,just like Inmarsat-C, in some navigational areas: a Sitor *b Navtex c Maritex 56 Inmarsat system/model which provide communication thru telephony, facsimile, telex, high speed data: a Inmarsat-C *b Inmarsat-A c Inmarsat-P 57 A facility of inmarsat-A terminal which provides the length of time Inmarsat system was used: *a call accounting b printer c print-out 58 Location of both the network control center and the satellite control center: a Goonhilly southwest of england *b Inmarsat headquarters in london c Distributed in each ocean region 59 An inmarsat-A on board a vessel at pacific ocean addressed a call to another inmarsat-A to a vessel in the indian ocean the process by which the signal travels from one terminal to the other is called: a signal process b single hop *c double hop 60 An airplane, a vessel or a train equipped with inmarsat, mobile earth station: a should not be in motion to received messages 4/25/2016 4/25/2016 3M PACS NOTES IN INMARSAT AND SIGNALS COMPILED BY: THRID MATE RODIEN E PACA *b could receive messages while in motion c redirect course to receive messages 61 Possible cause for inmarsat to decommission inmarsat-C terminal: a incorrect positioning of antenna *b incorrect operation c delayed log-in 62 A sub-system of inmarsat which connects the inmarsat satellites with the landline telecommunications: a Satellite control center *b Coast Earth Station c Network co-ordinating center 63 Capable of receiving Maritime safety information near global automatically: a SITOR *b Navtex c Inmarsat-C 64 What should be done when a vessel equipped with inmarsat-C enters a new Inmarsat satellite area coverage: a re-orient the antenna b call the LES *c log-in with the NCS 65 The ship earth station is one of the components of inmarsat system which can communicate with any landline fixed telecommunication firstly by: a getting an assignment from inmarsat b NCC control *c obtaining access with the system 66 What should be done when a vessel equipped with inmarsat-C enters pacific ocean region after it leaves indian ocean region: *a log-out IOR and log-in POR b re-orient its antenna to POR c nothing because the antenna is omni directional 67 Ocean code for telex in the atlantic ocean region-west: *a 584 b 582 c 583 68 Main purpose why must the inmarsat satellite have to maintain a speed of 7,000 MPH: *a to maintain its geostationary orbit b to prevent the satellite from falling into the earth c to prevent the satellite from going to the moon 69 An inmarsat terminal whose toll charge is computed based on number of Bps or kilobit: a inmarsat-A *b inmarsat-C c inmarsat-B 70 Ocean code for telex in the atlantic ocean region-east: a 584 b 583 *c 581 71 One of the characteristics of inmarsat-C terminal: *a half-duplex 4/25/2016 4/25/2016 3M PACS NOTES IN INMARSAT AND SIGNALS COMPILED BY: THRID MATE RODIEN E PACA b full duplex c triplex 72 As the earth rotates on its axis, the inmarsat satellites moves at 7,000 MPH to maintain its geostationary orbit Nevertheless, intances takes place where the satellites deviates from its assign fixed position What particular components of the inmarsat system whose function is to bring back the satellite to its assigned fixed position: *a Satellite control center b Coast earth station c Network control center 73 When a telephone call is placed to a vessel equiped with Inmarsat-A to gain access: *a use ocean code b use country code c use area code 74 Before a distress message is sent a priority call should be requested by: *a pressing the emergency button b placing a call with the LES c call inmarsat 75 Inmarsat maritime help line: a telex number 820325 INMHLP G b telex number 750659 INMHLP G *c telex number 920327 INMHLP G 76 Process by which inmarsat terminal is tested for the first time upon installation before commercial operation could be done: a initialization b warning *c commissioning 77 Acronym for international maritime satellite organization: *a Inmarsat b Marisat c Inmarsator d none of the above 78 Inmarsat operates: a for profit b as a foundation *c not for profit 79 In sending message thru inmarsat-C the space in between words are: a free of charge b double charge *c counted as one character and are included in the charge 80 The lowest cost among all inmarsat terminals except inmarsat-P: a inmarsat-A *b inmarsat-M c inmarsat-C 81 An inmarsat system design which gave the Inmarsat-B terminal a better quality than inmarsat-A: a digital b analogue *c full duplex 82 Inmarsat new generation satellites have a life span of: *a 10 years b years c 15 years 4/25/2016 4/25/2016 3M PACS NOTES IN INMARSAT AND SIGNALS COMPILED BY: THRID MATE RODIEN E PACA 83 Inmarsat satellite provide data communication up to: *a 70 degrees N or S Latitude b 75 degrees N or S Latitude c 80 degrees N or S Latitude 84 Inmarsat-A terminal toll charge for telex, facsimile or high speed data is based on: *a time length b characters c numbers or words 85 Strictly prohibited by inmarsat: a sell inmarsat terminal b failure to log-out *c sends false distress alarm 86 An inmarsat terminal which could receive messages stored for several hours or days after logging in coming from in-operative period: a inmarsat-C b inmarsat-A *c inmarsat-B 87 An inmarsat terminal which will eventually replace inmarsat-A: a inmarsat-M b inmarsat-C *c inmarsat-B 88 Complete privacy or secured communication with the use of inmarsat system is possible when: a one inmarsat terminal is on the other side of the communication b when landbase communication sstem is connected with inmarsat *c two inmarsat terminals are on both ends of the inmarsat communication system 89 The enhanced group call facility that inmarsat provides, ship addressed but located in different ocean regions: a could receive message with slight delay after the other *b could receive message simultaneously c is not possible 90 In what orbit where the inmarsat satellites positioned 35,700 KM above the equator: a low flying *b geostationary c fast orbit 91 With the use of inmarsat-A terminal the strenght of signal from the satellite as could be seen from the EU or BDE depends upon: a the elevation angle from 05 degrees to 90 degrees N or S b the azimuth angle *c how the antenna had been focused with the satellite 92 With the use of Inmarsat-A telex facility, what sign gives you a signal that you can send your telex thru the system: *a GA+ b WRU c HR IS 93 In re-orienting the antenna of the inmarsat-A terminal auto track is not advisable when the position of the vessel is: a at degrees elevation angle b partly obstruct the antenna from either one of the satellites *c covered by overlapping satellites equi-distant to the vessel 4/25/2016 4/25/2016 3M PACS NOTES IN INMARSAT AND SIGNALS COMPILED BY: THRID MATE RODIEN E PACA 94 In the absenceof electronic power or power failure from the generator set, a 24 volts car battery can be a substitute to run an inmarsat terminal What is needed in order that a car battery could be used: a converter b transformer *c inverter 95 Ocean code for telephone in the atlantic ocean region-west: a 872 b 873 *c 874 96 Year when inmarsat-A terminal could no longer be used: *a 2006 b 1999 c 2005 97 Ocean code for telephone in the pacific ocean region: *a 872 b 871 c 873 98 There are navigational areas where there are two or three satellites overlapping each other's coverage Under this situation, the mariners have the discretion to use: a no discretion but to use satellite where they were formerly oriented *b any of the satellites c no discretion but to use the satellite with the highest elevation angle 99 Ocean code for telex in the pacific ocean region: *a 582 b 581 c 583 100.The electronic unit component of the inmarsat terminal is sometimes referred to as: a ADE *b BDE c CDE 4/25/2016 4/25/2016 3M PACS ... by which inmarsat terminal is tested for the first time upon installation before commercial operation could be done: a initialization b warning *c commissioning 77 Acronym for international maritime... b c 20 Year Inmarsat was established: a 1982 b 1976 *c 1979 21 Inmarsat terminal/model which transmit information on store and forward: a Inmarsat A *b Inmarsat C c Inmarsat B 22 Inmarsat model... machine for message to be received in FAX form: *a Inmarsat- C b Inmarsat- B c Inmarsat- A 51 Inmarsat C terminal transmits information rate at: a 2,400 BPS b 50 BPS *c 600 BPS 52 What should be done