CÂU HỎI TRẮC NGHIỆM CHUYÊN MÔN CHO SỸ QUAN QUẢN LÝ 9

No.1001 Altering the range scale may automatically change the > A anti-clutter settings B pulse length C amplification of echoes D transmitted frequency No.1002 The distance of a target can be measured by using the > A variable range marker B S.T.C control C range scale switch D tuning control No.1003 An alternative name for the anti-rain clutter control is the > A shift control B F.T.C control C S.T.C control D swept gain control No.1004 On a radar display, this symbol indicates the > A range ring brilliance B range scale switch C variable range marker D fixed range rings No.1005 The brilliance control should be adjusted so that > A the trace is just barely visible B the trace is as bright as possible C weaker echoes are just barely visible D weaker echoes are as strong as possible rqdcp_10.bmp No.1006 The purpose of the bearing cursor is to > A show the course of own ship B align the heading marker C measure the bearing of targets D indicate the direction of true north No.1007 The gain control should be adjusted so that A the screen background has no speckling B clutter echoes are showing at maximum strength C no clutter echoes are showing on the screen > D there is a light speckled background on the screen No.1008 Before taking target bearings, you should check that > A the Variable Range Marker ( VRM ) is switched on B the trace is correctly centred C the gain control is set to zero D the heading marker is switched off Page 336 of 583 No 1009 Which target will have the closest point of approach ? > A Target A B Target B C Target C D All equal No.1010 What is the closest point of approach of target B ? > A Between - miles B Between - miles C Less than 0.9 mile D Between - miles No.1011 Which target will have the closest point of approach ? > A Target A B Target B C Target C D All Equal Page 386 of 583 No.1012 Which target will have the closest point of approach ? > A Target A B Target B C Target C D All equal No.1013 Which target will have the closest point of approach ? A Target A B All Equal C Target B > D Target C No.1014 What is the closest point of approach of target C ? > A Between - miles B Between - miles C Less than 0.9 mile D Between - miles Page 387 of 583 n2-39.bmp No 1015 What is the ability of a radar set to clearly distinguish two targets, on the same range and slightly different bearings, as two separate targets on the PPI, known as? > A Bearing discrimination B Range discrimination C Minimum range D Maximum range No.1016 What is the range discrimination of a radar set of pulse length 60metres? > A 30 metres B 60 metres C 90 metres D 20 metres No.1017 What type of scanner is this? (see figure) > A Slotted wave guide B Cheese C Parabolic plate D Parabolic mesh Page 403 of 583 No.1018 What is the typical amount of time an ARPA would take to process and predict data? > A to B to 10 C 10to 20 D 20 to 30min No.1019 Regarding performance standards for navigational radar, what are the requirements for a scanner? > A It should rotate at a constant rpm of not less than 12 in relative wind speeds upto 100kts B It should rotate at a constant rpm of not less than 20 in relative wind speeds upto 100kts C It should rotate at a constant rpm of not less than30 in relative wind speeds upto 100kts D It should rotate at a constant rpm of not less than 40 in relative wind speeds upto 100kts No.1020 Sometimes shipboard obstructions such as masts, funnels etc reflect radar energy and the echo painted on the PPI shows a different direction but the same range What is this type of echo known as? > A Indirect echo B Side lobe echo C Multiple echo D Second trace echo Page 404 of 583 No.1021 What is the effect of a radar reflector on a buoy? > A It strengthens the reflectivity of the target B It weakens the reflectivity of the target C It is used to provide a unique signal D It acts as a ramark No.1022 If your vessel, while proceeding south at 10 knots, observed by radar a vessel proceeding south at 10 knots, what would be the approximate direction and rate at which the pip would move on your PPI scope? > A Stationary B South at 20knots C South at 10knots D North at 20knots No.1023 When two tracked targets are very close to each other, the radar data of one target shifts over to the other target What is this called? > A Target swap B Target loss C Trial manoeuvre D Plotting Page 405 of 583 No.1024 What is the name given to unwanted radial lines that sometimes appear on the radar screen? > A Spoking B Starring C Ranging D Racking No.1025 What type of refraction will be experienced, when a cold breeze blows over a relatively warm sea? > A Sub refraction B Super refraction C Normal refraction D Ducting No.1026 Which of these gives only a bearing and not a range? > A Ramark B Racon C Buoy D Lt vessel Page 406 of 583 No.1027 Which control on the radar is used to suppress clutter? > A Anti- clutter B Gain C Tuning D Differentiator No.1028 Regarding performance standards for navigational radar, what should be the bearing accuracy? > A Plus or minus 1deg B Plus or minus deg C Plus or minus 1/ deg D Plus or minus 1/2 deg No.1029 What does this control on the radar indicate? (see figure) > A Performance monitor B Transmitted power monitor C Anti-clutter D Tuning Page 407 of 583 No.1107 Which deckhands are not permitted to work aloft? > A All ordinary seamen B Cadets or apprentices C Those under 18 years who have less than year experience D All of the other options No.1108 When engaged in deck maintenance work or mooring operations, what sort of gloves should be worn? > A Rubber or synthetic gloves B Leather palm gloves C Heat resistant welders gloves D Light cotton gloves No.1109 When working over the ship's side on staging, what other equipment besides a safety harness should be worn? > A No other equipment is necessary B Box type or wrap around goggles C A life jacket D Waterproof overalls No.1110 When must you wear breathing apparatus? > A When entering a space suspected to be deficient in oxygen B When required to go under water C When cleaning holds after a grain cargo D When spray painting or grit blasting No.1111 When must you wear a safety harness? > A When working in the lower hold B When working aloft or over the side of the ship C When at mooring stations D When opening hatches No.1112 What protective equipment must be issued to each deckhand for everyday use? > A Breathing apparatus, resuscitators B Safety harness, lifeline C Safety hat, work gloves, safety shoes D Chemical resistant, fire resistant jacket No.1113 What is a permit to work? > A Work orders from the senior officers B A complete check on preparedness prior to start of work C The recommendations of the ship's safety committee D A notification that you are qualified to carry out the work No.1114 Which of the following maintenance features does not apply to deck cranes? > A Overhauling the gooseneck B Checking and topping up the oil level in the gearbox C Greasing with a grease-gun D Regularly checking for brake wear No.1115 Which of the following does not have to be carried out on steam powered deck machinery? > A Checking the integrity of the lagging B Removing any air from the system before it is use C Occasionally checking for corrosion of the pipework D Draining water from the lines in cold weather No.1116 Compressed air lines on deck usually suffer from which problem more than the others? > A Corrosion of pipework B Vibration C Water in the pipelines causing rusting of the machinery D Couplings blowing apart causing loss of air pressure No.1117 Liferafts are sent for re-packing and checking every A years B months C 10 years > D year No.1118 Which of these maintenance tasks, carried out on winches is considered the most important? > A Oiling B Painting C Checking brake lining wear D Greasing No.1119 Which of the following need not be tested weekly? A Lifeboat engines B Engine intake flaps C Watertight doors > D Liferafts No.1120 Occasionally a MacGregor hatch may pull from side to side This could be due to A the eccentric rollers not being in place B the locking cleats seizing C the cross wedges not being removed > D the pulling chains being of unequal length No.1121 Which of the following faults would you consider less serious on a fire hydrant? > A Valve handle missing B Not greased C No hydrant cap fitted D Leaking No.1122 Which of the following does not apply to electrically powered deck machinery and cables? > A If the machinery is sparking or arcing it should not be used B The machinery has to warm up before it can be used C Damaged cable insulation should be reported immediately D Electrical controls should be in weather proof containers No.1123 What does the maintenance of lifeboat davits consist of? A Dismantling completely B Greasing all over its surface C Replacing every 10 years > D Testing, painting and greasing No.1124 Before using deck machinery powered by hydraulics which of the following would you NOT have to do? > A Drain water from the pipework B Bleed air from the system C Check and if necessary top up the system with oil D Check the system for any leaks No.1125 Which of the following parts of a MacGregor hatch require the most maintenance? > A Locking cleats B Chains C Runners D Wedges No.1126 The outside of deck cranes, derricks and hatch coamings all need protecting with > A grease B emulsion paint C gloss paint D bituminous paint No.1127 Which of the following is NOT important if you are replacing a worn shackle? > A The manufacturer B The size C The Safe Working Load D The type No.1128 After a lifting block has been dismantled, cleaned and reassembled, which of the following is checked? > A That the correct grease has been used B That all the split pins and locking devices have been replaced C That the correct block has been dismantled D That all parts of the block have been cleaned No.1129 How are the moving parts of deck equipment maintained? > A By painting B By washing C By greasing D By oiling No.1130 Which of these should not be done when preparing steel for painting? A Wash with soap and water B Remove scale and rust and then wirebrush C Coat any bare metal with two coats of primer > D Wash with high-pressure sea water No.1131 What type of paint should be applied to aluminium? > A Red lead B Bituminous paint C Zinc-chromate paint D Anti-fouling paint No.1132 On what parts of the ship are fire retardant paints used? > A Cargo holds B Accommodation surfaces C Hot surfaces D Tank tops No.1133 Where is cement wash applied? > A Fuel tanks B Ballast tanks C Fresh water tanks D Cargo tanks No.1134 Where is bituminous paint applied? > A Ballast tanks B Bilges C Fresh water tanks D Sewage tanks No.1135 Where is anti-fouling paint applied? A The ship's main deck B The ship's hatch covers C The ship's side > D The ship's bottom No.1136 Where is top-side paint applied? > A The ship's hull above the load water line B The ship's superstructure above the bridge C The ship's hatch coamings D The ship's masts, cranes and derricks No.1137 Where are non-slip paints applied? > A Weather decks B The gangway C Tank tops D Alleyway decks No.1138 To protect wire ropes, what must you ensure? > A That they are kept well oiled B That they are washed with strong detergent C That they are painted D That they are buffed with wire brushes No.1139 When sewing or repairing canvas, what must you ensure doing with seaming twine (thread)? > A That it is wet B That it is oiled C That it is pulled over bees wax D That it is double thickness No.1140 For wood fittings within the accommodation, what sort of paint should be used? > A Oil based paint B Water based paint C Fire retarding paint D Non-drip paint No.1141 What causes blistering on paintwork? > A Exposure to the sun B Moisture beneath the paint C Use of too much paint D Using the wrong type of paint No.1142 Before painting, varnishing, or oiling woodwork; what must be ensured? > A That the surface should be clean and dry B That the surface is washed first C That the surface is roughly sanded D That the surface is scored or gauged No.1143 Which of these statements is not correct? A Contact with oil on the skin can cause dermatitis B Oil can block skin pores and cause rashes C Oil and gasoline on the skin can cause skin cancer > D Kerosene is good for cleaning the skin No.1144 Who certifies that a space is gas-free and safe for hot or cold work? > A The bosun B The captain C A responsible officer D An experienced AB No.1145 What is "hot work"? > A Welding or cutting with a torch B When a tank temperature goes above 45 degrees C or 113 degrees F C When a work area is so hot that an air blower is needed D Work which is so strenuous that it becomes dangerous No.1146 What is "cold work"? > A When the temperature drops below freezing B Work that can cause sparks when using a hammer/scraper or other such tools C When it is necessary to wear a parka jacket D When the work to be done will take a long time No.1147 Which of the following must be present for rusting to occur? A Air and iron B Water and iron C Oxygen and water > D Oxygen, water and iron No.1148 What corrective action would you take if, when spraying a bulkhead, the paint developed into runs? > A Make the paint thinner B Add more base paint to the mixture that is being sprayed C Increase the spraying pressure D Move the gun at a slower speed across the bulkhead No.1149 Paint used in engine rooms needs to be > A self polishing B resistant to oils and chemicals C resistant to sunlight D easy to apply No.1150 Which of the following combine with steel to form rust? A Water and salt B Oil and water C Air and dirt > D Water and oxygen [...]... it clockwise D By taking the middle of the rope and flaking it out along the maindeck No.1 097 How many strands can a flexible steel wire have? A 6 B 12 C 18 > D 6 or 12 or 18 No.1 098 What type of stopper should be used to hold a polypropylene mooring rope? > A Nylon B Manila C Polypropylene D Terylene No.1 099 What is a gantline? > A A rope attached to a bosun's chair or stage B A rope to throw ashore... An enclosed lifeboat Page 431 of 583 No.10 89 What instrument indicator is shown on the right of the picture? > A The steering gear pressure indicator B The bridge barometer C The engine R.P.M indicator D The rudder angle indicator No.1 090 What does the picture show ? A A telescopic topmast B The jackstaff C The foremast > D The radar and signal mast No.1 091 What does the picture show ? A A freefall... rigid survival capsule No.1 092 What does the picture show ? > A Quick release gear B Hydrostatic release gear C A lifeboat falls wires and hoisting winch D A portable lifeboat engine No.1 093 What does the picture show ? > A A stored inflatable liferaft B A container for storing lifejackets C A lifeboat freshwater container D A container for storing distress rockets No.1 094 What does the encircled part... whereas lower objects at the same range are always detected No.1032 What is used to control the amplification of echoes received? > A Gain B Differentiator C Brilliance D Focus No.1033 What is used to warn the observer if any distinguishable target closes to a chosen range or transits a zone chosen by the observer? > A Guard rings and zones B CPA warnings C Target lost warning D Collision course warning... advanced rudder C Engine exhaust underwater discharge > D Propeller guard capable of vectoring thrust No 1 095 > What is a runner used for? A To stop a derrick from slewing B For carrying flag or signal halyards C For hoisting or lowering cargo on a derrick D For moving the boom higher or lower No.1 096 How do you open a coil of rope? > A By taking rope from inside the coil and recoiling it anti-clockwise... distance travelled through the water C Indicating wind speed D Writing an official record of events on board No.1078 Your vessel is at anchor What daytime signal must the vessel display? > A A red and yellow flag B A black cylinder C A black ball D A basket No.10 79 How would you respond to an order of "steer 045 degrees" from the pilot? > A Repeat the order, then alter course until 045 degrees is shown... X band C L band D M band No.1038 Which of these controls is provided to check the overall efficiency of the radar? > A Performance monitor B Range selector C Pulse length selector D Centre shift No.10 39 What is the rate at which two moving objects approach or separate from each other called? > A Relative speed B Relative movement C Relative distance D Relative bearing No.1040 What is used as a portable,... D Stationary No.1048 What is the vertical angle between the upper and lower edges of the radar beam? > A Vertical beam width B Horizontal beam width C Vertical band width D Horizontal band width No.10 49 When obtaining a fix , which is more accurate? > A The intersection of the arcs obtained using the ranges from the objects as radii B A fix obtained by cross bearings C A fix obtained by bearing and... what colour sidelight would you see? > A Yellow B Green C Red D White No.1058 When a vessel is crossing from starboard to port, what colour sidelight would you see? > A Red B Green C White D Yellow No.10 59 When your vessel is overtaking another, what is the colour of the first light you would see? > A White B Red C Yellow D Green No.1060 How many degrees are there on the rose of a magnetic or gyro compass?... ship B Check the gyro compass course against the magnetic compass course C Alter course occasionally to ensure it is working properly D Adjust the speed and latitude settings on the gyro each watch No.10 69 What is a gyro compass? > A A type of magnetic compass B A compass powered by electricity C A special compass for emergencies D A compass that measures wind direction No.1070 What are the cardinal points