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DG Exit Exam
Answer Key

TASCO exit exam questions and answers — Set 6

Set 6 of the Advanced Training for Oil Tanker Cargo Operations (TASCO) exit exam bank — 30 of 181 questions, with the correct option marked and a one-line explanation for every one. Read it end to end, jump to a single set, or search it — then sit the same bank as a timed paper. The real DG Shipping exit exam is 30 marks with 15 to pass.

These are the bank's original groupings. Practising deals the whole bank out again every time you reshuffle, so a practice “Set 3” is a different 30 questions each time — the set numbers below are the source file's, and are only used here so the key stays navigable. Options are listed in their original order with fixed letters; when you practise, those move too.

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Set 6 — 30 TASCO exit exam questions with answers

1. What does "V" indicate in the pump illustration?

  • A. Cofferdam Purging
  • B. Cofferdam Check Pipe
  • C. Local Control Valve
  • D. Speed Torque Control Valve
Answer: A — Cofferdam Purging
In the context of Framo submerged pump monitoring, 'V' refers to the purging port or cofferdam purging connection. This is used to test for seal integrity by applying air/gas pressure and checking for leaks.

2. What does figure "VII" represent in the pump assembly?

  • A. Mechanical Oil Seal
  • B. Sleeve
  • C. Wear rings
  • D. Hydraulic Motor
Answer: A — Mechanical Oil Seal
The component 'VII' represents the mechanical oil seal. This seal is a critical barrier separating the cargo area from the hydraulic oil area, preventing contamination between the two.

3. Normally what is the discharge capacity of Framo portable pumps?

  • A. 150 cubic meter per hour
  • B. 200 cubic meter per hour
  • C. 70 cubic meter per hour
  • D. 100 cubic meter per hour
Answer: C — 70 cubic meter per hour
Portable centrifugal pumps used for tanker stripping or cargo transfer are typically sized for specific capacities. A 70 cubic meter per hour capacity is a common standard for these portable hydraulic-driven units.

4. What is the function of the item marked "II" in the pump diagram?

  • A. Impeller
  • B. Anti-rotation Brake
  • C. Hydraulic Motor
  • D. Suction Well
Answer: B — Anti-rotation Brake
The anti-rotation brake (or stay) is essential for submerged pumps to ensure the pump body remains stable and does not rotate under the reaction forces generated by the spinning impeller.

5. In a centrifugal pump:

  • A. The fluid moves in the same direction as the impeller.
  • B. The discharge side has a negative pressure.
  • C. The fluid moves in a direction opposite to the impeller.
  • D. The width of the discharge pipeline decreases outwards.
Answer: A — The fluid moves in the same direction as the impeller.
In a centrifugal pump, the fluid enters the impeller eye and is thrown outwards by centrifugal force. The impeller vanes guide the fluid in the same rotational direction until it enters the volute casing.

6. What does "V" indicate in the below illustration?

  • A. Bearings
  • B. Suction Well
  • C. Mechanical Oil Seal
  • D. Sleeve
Answer: B — Suction Well
The 'suction well' (or inlet screen/well area) is the area 'V' where the cargo enters the pump. It ensures that the fluid is presented to the impeller eye as smoothly as possible.

7. What does "VIII" indicate in the centrifugal pump diagram?

  • A. None of the above
  • B. Impeller
  • C. Eye of Impeller
  • D. Discharge Nozzle
Answer: C — Eye of Impeller
The 'eye' of the impeller (labeled 'VIII') is the central inlet where the liquid enters the impeller vanes, representing the transition point from the suction pipe/well to the kinetic energy section.

8. Bernoulli's principle states that:

  • A. pressure (P) x height (H) is a constant
  • B. height (H) x velocity (V) is a constant
  • C. pressure (P) x density (D) is a constant
  • D. pressure (P) x velocity (V) is a constant
Answer: D — pressure (P) x velocity (V) is a constant
Bernoulli's principle, in its simplified form for fluid dynamics in pumps, expresses the conservation of energy, where increases in velocity occur alongside decreases in static pressure, and vice versa.

9. From the below illustration, identify the name of the marking "14".

  • A. Deck Trunk
  • B. Hydraulic Pressure Pipe
  • C. Cargo Pipe
  • D. Resilient Mounting
Answer: C — Cargo Pipe
In the assembly schematic, '14' represents the cargo discharge pipe. This pipe conveys the pressurized fluid from the pump outlet up through the deck trunk to the vessel's cargo manifold.

10. From the below illustration, identify the name of the marking "V".

  • A. Diffuser
  • B. Eye (Suction)
  • C. Impeller
  • D. Shaft
Answer: A — Diffuser
The diffuser 'V' is a stationary component in the pump casing that guides the fluid from the impeller outlet. Its primary function is to efficiently convert the high-velocity kinetic energy of the fluid into static pressure.

11. How the speed of the portable pump can be varied?

  • A. The portable pump is always rigged with its own flow control valve which is used for speed variation
  • B. By varying the speed of the feed pump
  • C. Portable pump speed cannot be varied
  • D. Using the flow control valve of the main cargo pump
Answer: A — The portable pump is always rigged with its own flow control valve which is used for speed variation
The speed of a hydraulic motor is proportional to the flow rate of the hydraulic oil. Therefore, the pump is rigged with a flow control valve that regulates the oil volume, allowing for precise speed variation.

12. What kind of pumps can move extremely thick fluids like sludge without clogging?

  • A. Screw pumps
  • B. Deep well pumps
  • C. Reciprocating pumps
  • D. Rotary vane pumps
Answer: A — Screw pumps
Screw pumps are positive displacement pumps known for their ability to handle high-viscosity fluids and sludges efficiently. Their design prevents clogging and ensures a steady flow regardless of the fluid thickness.

13. What is the pressure of the hydraulic oil in the inlet side for running the hydraulic motor?

  • A. Around 25 bar
  • B. Around 50 Bar
  • C. Around 170 bar
  • D. Around 100 bar
Answer: C — Around 170 bar
Submerged hydraulic cargo pumps are designed to operate at high pressure to achieve the necessary power for liquid discharge. An inlet pressure of approximately 170 bar is typical for these motors under full-load conditions.

14. The reciprocating pump creates a suction effect when there is a

  • A. decrease in pressure
  • B. no change in pressure
  • C. increase in pressure
  • D. decrease or an increase in pressure
Answer: A — decrease in pressure
A reciprocating pump operates by the motion of a piston or plunger. When the piston moves to expand the volume of the pump chamber, it creates a decrease in pressure (a vacuum), which draws the fluid in through the suction valve.

15. What is represented by the figure "VI" in the pump assembly illustration?

  • A. Shaft
  • B. Impeller
  • C. Casing
  • D. Eye of impeller
Answer: B — Impeller
The impeller 'VI' is the rotating core of the centrifugal pump. It imparts kinetic energy to the liquid by spinning at high speed, driving the fluid from the eye towards the periphery of the casing.

16. Select the correct point regarding the operation of the portable pumps?

  • A. Make sure that the portable pump is completely submerged and lowered till the bottom of the tank and then start the pumping operation
  • B. When the liquid cargo level goes down, lower the hose accordingly, keeping the rigged pump on the deck
  • C. Ensure that only the lower half of the pump is submerged and is lowered as the cargo level falls.
  • D. Before using portable pump, rig the pump on the deck and while pumping, lower the hose in the tank
Answer: C — Ensure that only the lower half of the pump is submerged and is lowered as the cargo level falls.
When operating portable cargo pumps (such as submersible hydraulic or pneumatic pumps) on a tanker, it is critical to ensure the pump's suction end/lower half remains submerged in the liquid cargo, lowering it progressively as the level falls. This prevents dry running, loss of prime, and air entrainment while avoiding unnecessary full submersion of the pump's power head.

17. Under STCW Code Table A-V/1-1, what is the mandatory requirement regarding emergency procedures and alarm protocols during Advanced Oil Tanker Cargo operations?

  • A. Strict compliance with approved safety procedures and flag state regulations
  • B. Optional adherence based on vessel size
  • C. Verbal recommendation without documentation
  • D. Applicable only during drydock operations
Answer: A — Strict compliance with approved safety procedures and flag state regulations
STCW Code Table A-V/1-1 mandates strict compliance with approved safety protocols for Advanced Oil Tanker Cargo.

18. What specific safety precaution must be observed when managing emergency procedures and alarm protocols for Advanced Oil Tanker Cargo on board?

  • A. Disabling automated safety alarms to save time
  • B. Conducting a thorough risk assessment and briefing all involved personnel prior to starting work
  • C. Proceeding without informing the officer on watch
  • D. Delegating tasks exclusively to untrained crew members
Answer: B — Conducting a thorough risk assessment and briefing all involved personnel prior to starting work
Risk assessments and pre-job briefings ensure all team members understand hazards during Advanced Oil Tanker Cargo operations.

19. Which international regulation specifies the minimum standard for emergency procedures and alarm protocols concerning Advanced Oil Tanker Cargo?

  • A. International Load Line Certificate Annex 3
  • B. STCW Code Section A-V/1-1 and relevant SOLAS/MARPOL conventions
  • C. Port State Control advisory note only
  • D. Tonnage Measurement Convention 1969
Answer: B — STCW Code Section A-V/1-1 and relevant SOLAS/MARPOL conventions
STCW Code Section A-V/1-1 sets international standards for training and operational competency in Advanced Oil Tanker Cargo.

20. What regulation under STCW Code applies to Advanced Oil Tanker Cargo mandatory minimum requirements?

  • A. Section A-VI/{sec} of STCW Code
  • B. SOLAS Chapter V Rule 10
  • C. Chapter III Regulation 5
  • D. MARPOL Annex I Regulation 12
Answer: A — Section A-VI/{sec} of STCW Code
STCW Code Chapter VI specifies mandatory standards for safety and emergency functions.

21. Under STCW standards for Advanced Oil Tanker Cargo, how often must refresher training or evidence of competence be demonstrated?

  • A. Every 5 years
  • B. Every 10 years
  • C. Every 2 years
  • D. Annually
Answer: A — Every 5 years
STCW 2010 Manila Amendments require seafarers to demonstrate continued competence every 5 years.

22. What primary safety objective is governed by the Advanced Oil Tanker Cargo module on board ship?

  • A. Enhancing shipboard safety and emergency readiness
  • B. Optimizing fuel consumption
  • C. Minimizing port dues
  • D. Automating engine control
Answer: A — Enhancing shipboard safety and emergency readiness
The core objective of STCW safety modules is protecting human life and vessel integrity.

23. What documented safety check must be performed before starting operations related to Advanced Oil Tanker Cargo?

  • A. Verbal request to port authority
  • B. Engine logbook entry only
  • C. Bridge sign-off without briefing
  • D. Risk assessment and toolbox meeting
Answer: D — Risk assessment and toolbox meeting
Toolbox briefings and risk assessments ensure all personnel understand operational hazards.

24. What personal protective equipment (PPE) is mandatory during Advanced Oil Tanker Cargo practical tasks?

  • A. Standard street clothes with safety boots
  • B. High-visibility vest only
  • C. Basic cotton coveralls only
  • D. Approved PPE meeting IMO/SOLAS standards
Answer: D — Approved PPE meeting IMO/SOLAS standards
Appropriate certified PPE protects personnel against specific task hazards.

25. Which international convention mandates compliance for Advanced Oil Tanker Cargo operational procedures?

  • A. Load Line Convention 1966
  • B. STCW Convention as amended
  • C. COLREGs 1972
  • D. Tonnage Convention 1969
Answer: B — STCW Convention as amended
STCW governs training, certification, and watchkeeping standards worldwide.

26. In case of an emergency scenario during Advanced Oil Tanker Cargo operations, what is the immediate first step?

  • A. Attempt to fix without informing others
  • B. Raise the alarm and notify Officer of the Watch / Duty Engineer
  • C. Evacuate vessel immediately without alert
  • D. Log the event in diary
Answer: B — Raise the alarm and notify Officer of the Watch / Duty Engineer
Promptly raising the alarm activates emergency response teams and master protocol.

27. What document contains emergency procedures and duties for crew members regarding Advanced Oil Tanker Cargo?

  • A. Garbage Record Book
  • B. Muster List and Emergency Instructions
  • C. Oil Record Book Part I
  • D. Cargo Manifest
Answer: B — Muster List and Emergency Instructions
The Muster List specifies assigned duties and station locations for every crew member.

28. What key responsibility rests with seafarers participating in Advanced Oil Tanker Cargo drills?

  • A. Observing without participating
  • B. Signing attendance without attending
  • C. Bypassing safety gear for speed
  • D. Active participation and compliance with safety protocols
Answer: D — Active participation and compliance with safety protocols
Realistic drill practice ensures effective performance during actual emergencies.

29. What log entry is required following completion of Advanced Oil Tanker Cargo drills on board?

  • A. Personal diary note
  • B. No log entry required
  • C. Official Deck / Engine Logbook entry recording date, drill type, and duration
  • D. Verbal update to port agent
Answer: C — Official Deck / Engine Logbook entry recording date, drill type, and duration
SOLAS and flag state regulations require formal logbook documentation of all drills.

30. In the event of an emergency involving emergency procedures and alarm protocols during Advanced Oil Tanker Cargo tasks, what immediate action is required?

  • A. Attempt to resolve the incident silently without raising the alarm
  • B. Raise the alarm, notify the Officer of the Watch, and execute assigned muster list duties
  • C. Wait until the end of the watch to log the issue
  • D. Evacuate the vessel immediately without informing the bridge
Answer: B — Raise the alarm, notify the Officer of the Watch, and execute assigned muster list duties
Prompt alarm activation ensures emergency response teams can mobilize immediately.

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