University of Cebu-METC STO Competency 1 Assessment PDF

UNIVERSITY OF CEBU‐METC STO COMPETENCY 1 ASSESSMENT QUESTIONNAIRE FOR VALIDATION ‐ DECK 1 What is the position obtained by applying only your vessel's course and speed to a known position? A Dead‐reckoning B Fix C Probable position D Applied position 2 What...

UNIVERSITY OF CEBU‐METC STO COMPETENCY 1 ASSESSMENT QUESTIONNAIRE FOR VALIDATION ‐ DECK 1 What is the position obtained by applying only your vessel's course and speed to a known position? A Dead‐reckoning B Fix C Probable position D Applied position 2 What is the position obtained by applying estimated current and wind to your vessel's course and speed? A Estimated position B Applied position C Dead‐reckoning position D Assumed position 3 A barometric pressure reading of 29.92 inches of mercury is equivalent to __________. A 1013.25 millibars B 1012.35 millibars C 1015.25 millibars D 1010.35 millibars 4 Apparent altitude is sextant altitude corrected for __________. A inaccuracies in the reading and reference level B double‐second difference C chronometer error and dip D difference in assumed latitude and actual latitude 5 Where can the data relating to the direction and velocity of rotary tidal currents be found? A Tidal Current Tables B Tide Tables C Mariner's Guide D Nautical Almanac 6 What is the speed of sound in the water? A 1.5 kilometers per second B 0.8 kilometer per second C 1.1 kilometers per second D 1.3 kilometers per second 7 What is the frequency of the low frequency pulse of the echo sounder? A 24 kHz B 18 kHz C 27.5 kHz D 33.3 kHz 8 On an echo sounder, which of these is used to draw a line on the paper to mark a specific time of an occurrence? A Event marker B Range switch C Unt selector switch D Timing device Page 1 of 7  9 When the water salinity increases, what happens to the speed of sound? A It increases. B It decreases. C It fluctuates. D It remains the same. 10 What is the nature of the beam transmitted by echo sounder? A Directional B Parabolic C Hyperbolic D Linear 11 Which of these is an echo sounder transducer type? A Magnetostriction B Diesel‐electric C Piezo‐hydraulic D Blue‐diode 12 Which of these may cause false echoes in an echo sounder? A Turbulence from the interaction of tidal streams wi B Schools of big fish C Bioluminescent microorganisms in the water D Protruding rocks from the seabed 13 What is a phenomenon in which the axis of an object wobbles when torque is applied? A Torque‐induced precession B Wobble parallax C Equinoctial eccentricity D Gyroscopic inertia 14 What is an error in a gyrocompass caused by rapid changes in course, speed and latitude causing deviation before the gyro can adjust itself? A Stream error B Parallax error C Error of collimation D Rapid error 15 Which statement about the Flinders bar on a magnetic compass is correct? A It compensates for the error caused by the vertical B It reduces the deviation into half. C It allows the magnetic compass to move freely in th D It corrects the semi‐quadrantal error at intercardin 16 Your vessel's heading is 330degreespgc and 345degreespsc with a 2degreesE gyro error. If there is a variation of 10degreesW, what is the deviation on this heading? A 3° W B 4° E C 7° W D 0° Page 2 of 7 17 Your vessel's heading is 330degreespgc and 345degreespsc with a 2degreesE gyro error. If there is a variation of 6degreesW, what is the deviation on this heading? A 7° W B 4° E C 3° W D 0° 18 Your vessel's heading is 330degreespgc and 345degreespsc with a 2degreesE gyro error. If there is a variation of 13degreesW, what is the deviation on this heading? A 0° s B 4° E C 7° W D 3° W 19 The shortest distance between any two points on earth defines a __________. A Great circle B Rhumb line C Small cirle D Mercator 20 What is a chart that covers a large area? A Small scale chart B Coastal chart C General chart D Large scale chart 21 Isogonic lines are lines on a chart indicating: A Points of equal variation B the Magnetic Latitude C Magnitic dip D Ponits of Zero variation 22 The revision of a chart is printed on what area of the chart? A Lower left center B Top center C part of the title D any clear area around the neat line 23 The visibility of lights indicated in the charts is in nautical miles for: A Charted range of the light B Luminous range of the light C Geographic range of the light D height of the observer's eye 15 feet above the wate 24 A Mercator Chart is a: A Cylindrical projection B Polyconic projection C Simple conic projection D Rectangular projection Page 3 of 7 25 Which chart symbol indicates that the bottom is coral? A Co B R C Cl D Sh 26 What publication contains ocean current information for voyage planning from Tokyo to San Francisco? A Sailing Directions B World port index C Guide to port entry D Coast pilot 27 What do you call the altitude after applying the Dip and index error? A Apparent altitude B Observed Altitude C Sextant altitude D Computed altitude 28 A phase correction is applied to observations of: A Planets B The sun C The Moon D Stars 29 When using GPS, you may expect your position to be accurate 95percent of the time within a radius of __________ meters. A 100 m B 50 m C 20 m D 10 m 30 When navigating using DGPS, you may expect your position to be accurate to within a radius of __________ meters. A 10 m B 20 m C 50 m D 100 m 31 The angle between the grid and magnetic meridians is called grid variations or __________. A Grivation B Declination C Deviation D Variation 32 The reaction of a gyro compas to an applied force is known as: A Precession B Gyroscopic inertia C Earth rate D Gravity effect Page 4 of 7 33 What navigational instrument used to indicate direction by measuring course and bearing? A Compass B Pelorus C Azimuth circle D Sextant 34 The compass rose on a nautical chart indicates both variation and __________. A Annual rate of variation change B Deviation C precession D Compass error 35 The standard atmospheric pressure in millimeters of mercury is: A 760 B 960 C 29.92 D 23.25 36 Your ship is steaming at night with the gyro‐pilot engaged when you notice that the vessel's course is slowly changing to the right. What action should you take FIRST? A Switch to hand steering. B Notify the engineroom. C Call the Master. D Shift steering to the emergency steering station. 37 How many degrees north or south of the Tropic of Cancer is the Arctic Circle? A 44degrees 06' North B 23degrees 27' South C 23degrees 27' North D 44degrees 06' South 38 Automatic device for steering a vessel by means of control signals received from a gyro compass is called _____. A gyropilot B gyro repeater C automatic pilot D gyroscopic steering 39 What is the length of a nautical mile? A 6,076 feet B 1,850 meters C 5,280 meters D 1,760 yards 40 The interval between the sun's upper limb being in the horizon and its center being 12degrees below is called: A Nautical twilight B Astronomical twilight C Observational twilight D Civil twilight Page 5 of 7 41 The dividing meridian between zone descriptions +4 and +5 is _____. A 67° 30' W B 75° 00' E C 60° 30' W D 60° 00' E 42 Physical checks of gyro, azimuth circle and pelorus include the following, EXCEPT: A align peloruses with fore‐and‐aft line of the ship B synchronize gyro repeaters with master gyro C ensure azimuth circle and peloruses are in good co D align the compass north to the fore and aft line of t 43 The bending of a wave as it passes an obstruction is called _________. A diffraction B refraction C attenuation D persistence 44 While voyage planning and navigating, a mariner must refer to both texts and tables. Tables includes the following EXCEPT: A Sailing Directions B Light Lists C Sight Reduction D Almanac 45 In the IALA Buoyage System, what is the color of an East Cardinal Mark? A Black band above and below yellow band B Black band with above and below yellow band C Black band above yellow band D Black band below yellow band 46 Who is responsible for the voyage plan? A The navigation officer B The owner C The person who has done the planning D The Master 47 When relieving the helm, the new helmsman should know the __________. A Course per magnetic steering compass B Maximum rudder angle previously used C Gyro error D Variation 48 A crew member has just fallen overboard off your port side. Which action should you take? A Immediately put the rudder over hardleft. B Immediately put the rudder over hardrigth. C Immediately put the engine astern. D Wait until the stern is well clear of the man and the 49 A report of casualty to a vessel must include _____________.? A The name of the owner or agent of the vessel B An evaluation of who was at fault C The amount of ballast on board D The estimated cost of damage Page 6 of 7 50 Which situation requires you to furnish a notice of marine casualty to the coast guard? A Your vessel is at anchor and grounds at low tide wit B Storm damage to the cargo winch motors requiring C A seaman slips on ice on deck and sprains his ankle, D You collide with a buoy and drag it off station with Page 7 of 7