MANAGEMENT – DECK

REPUBLIC OF THE PHILIPPINES

DEPARTMENT OF TRANSPORTATION

MARITIME INDUSTRY AUTHORITY STCW OFFICE

GUIDE QUESTIONNAIRES

for seafarers

The Annual Publication of Database of Questionnaires is mandated in Republic Act 10635 or the Act Establishing the Maritime Industry Authority (MARINA) as the Single Maritime Administration Responsible for the Implementation and Enforcement of the 1978 International Convention on Standards of Training, Certification and Watchkeeping for Seafarers, 1978, as amended and International Agreements or Covenants related thereto and its Implementing Rules and Regulations. These sample questions have been reviewed and validated by our respective Board of Examiners which may serve as a guide for the review of aspiring Marine Deck and Engineering Officers, towards the successful completion of the Theoretical Examination. The following sample questions do not reflect the actual set of database of questions given during the theoretical examination. Examinees are encouraged to study the contained sample questions and probable answers as they are intended to give an indication of the format and difficulty level of the theoretical examination. You may access these guide questionnaires with your smart gadgets anywhere and anytime at your convenience. Please consider the environment before printing. Thank you.

A Publication of the MARINA STCW Office

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FUNCTION 1 – Competence 11 1. After the economizer the feed water is entering the ____________. 2. The fuel consumed in unit time per unit power is called _____________. 3. A 2-kg mass falls 4m. What is the potential energy lost? 4. A battery of 24 Volt supplies during 10 hours a current of 6 ampere.

What is the capacity supplied __________. 5. A bridge gage is normally used to determine turbine __________. 6. A burner responsible for producing black smoke in an automatic auxiliary

boiler, would be caused by a ___________. 7. A centrifuge arranged to separate impurities and small amounts of water

from oil is known as ___________. 8. A centrifuge arranged to separate two liquids is known as

____________ . 9. A characteristic of most petroleum vapors is that they are: 10. A constant hissing sound at the thermal expansion valve will always

indicates: 11. A deepwell pump is a type of __________. 12. A device used in power plant work to determine the calorific value of a

fuel is known as. 13. A diesel engine with full speed of 1000 RPM drives a propeller at 300

RPM. What is the speed reduction ratio? 14. A diesel fuel may contain small amount of residual fuel in dark or black

color is known as: 15. A floating vessel will behave as if all of its weight is acting downward

through the __________.

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16. A force operating radially outwards. What is equal in magnitude but opposite in sign to the centripetal acceleration?

17. A gas pocket formed in a liquid due to decreased pressure is called: 18. A knocking noise from one cylinder of an operating reciprocating air

compressor indicates: 19. A liquid having a flash point above 80deg.F, but below 150deg.F, would

be termed a grade: 20. A mercury manometer is corrected with the inner tube of an automobile

tire and the difference in levels of mercury is 35 cm. How much does the inside pressure exceed the outside pressure in lbs per square inch?

21. A moment of 300 ft. tons is created by a force of 15,000 tons. What is

the moment arm? 22. A motor controller contains three selector push buttons labeled 'start',

'jog', and 'stop'. What happens to the motor when the 'jog' button is pushed?

23. A nickel-cadmium battery is receiving a normal charge and gases freely.

What should be the charging current? 24. A precooler is sometimes installed between the ___________. 25. A refrigerant gives up heat when it _____________. 26. A refrigerant R-717 is: 27. A remote control system, which is commonly used in modern installation

since it uses a small unit as transmitter on the bridge and is simple and reliable in operation.

28. A ship has three (3) generators and usually using two (2) generators

during steaming time. Before sailing one (1) generator was damaged; the ship next destination is approximately two (2) days sailing time. What must be your decision?

29. A sight glass in a full liquid line will be:

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30. A technique used natural tendency of oil to flow a full tank to an empty or slack tank is known.

31. A testing device called a 'growler' is being used to locate a shorted coil in

the stator of an AC electrical machine. What happens when the 'feeler' is moved over a slot containing the shorted coil?

32. A type of ventilation where the flow of air is controlled by the proper

trimming of ventilation. 33. A vessel's bow thruster is usually quite effective at a speed of up to how

many knots? 34. AC circuits develop resistance, inductance, and capacitance. How do

you expressed the inductive reactance of a circuit? 35. After changing out the fuel filters, the diesel engine fails to restart. What

may be the probable cause of this condition? 36. After maintaining correct discharge pressure, soon ceases to discharge

water and what are possible cause? 37. Air compressors are also fitted with drainage valves to___________. 38. Air compressors are machine that take air at: 39. Air Coolers MUST be clean as per Engine instruction and renew zinc

plates every___________. 40. All diesel engines are classified as __________. 41. All of the following steps are taken in starting a centrifugal pump,

EXCEPT to __________. 42. Among the following situations, how can you make sure that a sample is

a true representative of the boiler water to be tested? 43. An accumulation of electrical charges due to the contact of two or

different materials. 44. An electrode through which direct current enters an electrolyte. 45. Are goods carried at a freight rate according to their value?

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46. As the propeller turns, voids are formed on the trailing and leading

edges of the propeller blades causing loss of propulsive efficiency, pitting of the blades, and vibrations. These voids are known as _______.

47. Besides distilled water, what other compounds that the electrolyte in a

lead-acid storage battery consists of? 48. Capable carrying cargo other than refrigerated, fitted with refrigerating

apparatus. 49. Cargo pump relief valves are piped to the _______. 50. Cargo ship fitted with refrigerating apparatus but capable also of carrying

cargo other than refrigerated. 51. Centrifugal pumps are equipped with lantern ring, the purpose of which

is to __________. 52. Designed to deliver water under high water pressure in rotating stream

which are through every possible angle. 53. Determine how many revolutions per minute will the shaft have to turn if

the speed necessary for reaching port at a designated time is 16.8 knots and the propeller's pitch is 22.3 feet. Assuming a 4% negative slip.

54. Each fire pump on a tankship must have a pressure gauge located at

__________. 55. Each hose in the fuel transfer system for helicopter refueling must have

a __________ 56. Each inert gas system gas main must have an automatic shut down

valve at the outlet of the gas production plant. This valve must close automatically upon __________.

57. Each inert gas system must be designed to supply the cargo tanks with

a gas, or mixture of gasses, that has an oxygen content by volume of __________.

58. Energy is defined as the:

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59. Find how many RPM will the shaft have to turn if the speed necessary for reaching port at a designated time is 17.4 knots, assuming a slip of positive 3%. The pitch of propeller is 25.6 feet.

60. For more complete vessel protection, what other purposes when using

an impressed current cathodic system? 61. Hardness, distortion, and internal stresses of a metal are the results of

the: 62. How are pump shafts usually protected from erosion, corrosion, and

water at stuffering boxes, leakage joints and internal bearing? 63. How can moisture damage, as a result of condensation occurring inside

of the cargo winch master switches, be reduced? 64. How can you reduce the moisture damage, as a result of condensation

occurring inside of the cargo winch master switches? 65. How do you control static electricity? 66. How do you trickle charge the battery about the standard procedure for

maintaining the charge in an emergency diesel starting battery? 67. How does an inert gas system on a tanker function to prevent explosions

in cargo tanks?

68. How is the set pressure (opening pressure) adjusted on the cylinder head safety valve of a diesel engine?

69. How many or which one of the cargo pumps are required to give bleed

off for crude oil washing? (the vessel is not fitted with own crude oil washing pump).

70. How often shall the inert gas non-return valve be opened for internal

inspection 71. How often should the main lubricating oil filter be opened and inspected? 72. If “A” is the area of the orifice, the theoretical flow rate Qt, which formula

is given by?

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73. If an ammonia compressor trip out on cut out, the solenoid valve is closed by ____________.

74. If during operation and the air compressor pressure will not rise, the

probable cause may be: 75. If flammable liquids are being pumped with a centrifugal pump, you

should __________. 76. If the cylinder lube oil has inadequate acid neutralizing properties for the

fuel being burnt or if there is insufficient quantity of oil injected it will result to the liner in _______.

77. If the line voltage to the controller shown in the illustration is 440 volts,

what is applied across the control circuit? 78. If the specific gravity or relative density of petro is 0.9 its specific weight

is ________________. 79. In a diesel engine, where does blow by past as a result of combustion

gases leaking into the crankcase? 80. In a refrigeration system, a fluid that serves only as a heat carrier is

called a ____________. 81. In a refrigeration system, silica gel is used in the _______. 82. In refrigeration, what type of compressor is used when the driving motor

is sealed in a dome? 83. In the compressor, the temperature and pressure of the vapour are

raised by: 84. In the event of a power failure during cargo loading operations, what

technical parts could stop the movement of an electric powered cargo winch?

85. Inert gas should be supplied with an oxygen content of less than how

many percent? 86. Introducing inert gas into a tank already inert with the object of further

reducing the oxygen or hydrocarbon content to prevent combustion if air enters the tank is called __________.

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87. Lost of pump efficiency may be the result of: 88. Mention three ways of adjusting a centrifugal pump’s delivery capacity. 89. Most medium and slow speed diesels are started by what medium? 90. On a flue gas plant, the flue gas enters a washing tower where the gas

is washed to remove soot, ashes and to separate undesired gases. What is the name of this “washing tower”?

91. Prior to lighting off a cold automatically fired auxiliary boiler, you should

____________. 92. The action necessary to transfer the steering control from the

wheelhouse to local control in order to use the steering gear room trick wheel, is to:

93. The direct causes of a crankcase explosion can be attributed to

_______________. 94. The effective area of the jet is given by which of the following the

equation? 95. The first requirement for logical-troubleshooting of any system is the

ability to ___________. 96. The material used in a manufacture of mechanical seals for centrifugal

pumps is: 97. The measure of inorganic impurities in the fuel is called: 98. The most serious effect of air trapped in a non-treated diesel engine

jacket water cooling system is that it __________. 99. The pitch of a propeller is a measure of the ______________. 100. The primary function of a flue gas type inert gas system is to

_________. 101. The purpose of wearing ring used in centrifugal pumps is to:

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102. The weakening of boiler steel as the result of inner crystalline cracks is known as:

103. To vary the speed of fixed displacement axial piston hydraulic motor we

must: 104. What charging process produces where battery charging rooms should

be well ventilated? 105. What do you add as the proper way to mix the electrolyte for a battery? 106. What do you used on vessels instead of impressed current cathodic

protection? 107. What does it mean if the capacity of a centrifugal pump given by the

manufacturer is 4000m3/h at 120mlc? 108. What happens when electrical cables penetrate watertight bulkheads? 109. What instrument you are going to use aboard ship, to determine a

grounded field coil in an AC motor? 110. What is a common occurrence when a vessel is running into a shallow

water? 111. What is a characteristic of all centrifugal cargo pumps? 112. What is an electrical device which employs a stationary armature and a

rotating electromagnetic field that is used aboard ship? 113. What is commonly means the abbreviation 'PCB' in electronic circuitry? 114. What is known as a device which prints out a permanent record of the

plant operating conditions? 115. What is one function of the movable cams in a drum-type winch motor

controller? 116. What is the biggest difference on screw compressors that is utilized in a

cargo cooling plant? 117. What is the function of a full torque electric brake on an electric cargo

winch?

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118. What is the greatest detrimental effect on idle electrical equipment, such

as cargo pump motors? 119. What is the main difference of deepwell and submerged pumps? 120. What is the number of cells in a 12 volt lead-acid battery? 121. What is the proper way to apply plastic electrical tape to an electric cable

splice? 122. What is the purpose of an impressed current cathodic protection system

aboard ship? 123. What is the resistance of a replacement wire having twice the length and

one-half the cross-sectional area of the original wire? 124. What is used aboard ship as an electrical device which employs a

stationary armature and a rotating electromagnetic field? 125. What is very important before starting a steam driven piston pump? 126. What should be done to a discolored capacitor due to excessive heat

should be? 127. What should you do to repair a small electrical motor that has been

submerged in saltwater? 128. What type is a deepwell pump? 129. What type of hydraulic pump is used for steering a gear system? 130. What will be the freezing point of the electrolyte in a fully charged lead-

acid battery? 131. What will happen if a centrifugal pump is fitted without a non-return valve

on the delivery side? 132. What will happen to the pump flow rate by increasing the rotational

speed of a cargo pump? 133. When commence discharging with a centrifugal pump, which valve is the

last to be opened?

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134. When is a lead-acid battery considered fully charged? 135. When is it necessary to run two pumps or more in parallel? 136. When is it necessary to run two pumps or more in series? 137. When starting the air compressor after long period of rest the shaft

should be rotated prior to restarting to: 138. When the steering gear is in normal working order, the rudder is

hydraulically locked unless_________. 139. When troubleshooting AC motors, where do you used portable growler

for locating? 140. When troubleshooting electronic equipment, why you should use a high

impedance multimeter? 141. Where an ohmmeter can be used to measure? 142. Where do you obtain the electrical energy necessary to transmit a

person's voice over a sound-powered telephone circuit? 143. Where is the direction of rotation of an induction motor? 144. Which device will stop the motor shown in the illustration in case of a

short-circuit (high current) motor overload? 145. Which form of energy concerns the forces which bind atoms together in

a molecule? 146. Which form of energy is demonstrated through the process of

combustion? 147. Which is the function of a hydraulic reservoir other than storing oil? 148. Which is the procedure of cooling compressed gases under constant

pressure before going to the air reservoir? 149. Which method should be used to warm up the pump turbines prior to

discharge?

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150. Which of the electrical properties listed will always be the same across each component in a parallel circuit?

151. Which of the following actuates the hydraulic system solenoid valve? 152. Which of the following conditions will occur if the solenoid coil burns out

on a cargo winch with an electrical brake? 153. Which of the following is NOT an alarm on an inert gas plant 154. Which of the following statements about inert gas pressures in a cargo

tank is TRUE? 155. Which of the following type of brine is used more frequently on the

refrigeration system because it has lower freezing point? 156. Which of the following V/V cannot be overhauled in place without

removing piping? 157. Which of the listed devices is used to measure pressure and convert it to

an electrical signal? 158. Which of the listed instruments can be best used to locate a grounded

field coil in a synchronous motor? 159. Which type of AC single-phase motor will also operate on direct current? 160. Which type of piston compressor is most common as a cargo

compressor? 161. Which types of compressors are utilized as cargo handling compressors

on gas carriers? 162. While charging, when is a lead-acid battery may become hotter than

normal? 163. Why does a synchronous motor maintain synchronism with the rotating

field? 164. Why is copper tubing used in refrigerant system? 165. Why should you use a high impedance multimeter when troubleshooting

electronic equipment?

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166. You are in the confined waters. What is the danger in this situation if you

should lose engine power? 167. You start a centrifugal cargo pump to discharge cargo. The pump works

for a while and then loses suction. This could NOT be caused by __________.