Module 2B: Machinary Systems

Introduction

The following Module 2B: Machinery Systems is based on several Example Cases of Machinery Damages. This has the purpose and objective to give a clear example of the survey checkpoints.

SCOPE OF TRAINING

The participant who has completed the module will be able to understand:

Propulsion, auxiliary machinery, and steering gear;
Piping; and
Electrical and automation systems,

EVALUATION CRITERIA AND PASS REQUIREMENTS

The assessment methods will be to choose the best answer from a selection of alternatives.

In the method of objective evaluation, only be accepted one correct answer is valid, and never more than one selection within the same question since they will be automatically considered incorrect. The participants approve the course with a score equal to or greater than 70% of the total value of the assessment. All evaluations will be based on a Total Score of 100.

MODULE 2B-Machinery Systems

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ICS Class Rules-Chapter 6-Fire Protection (Rev.2020)

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ICS Class Rules-Chapter 12-Refrigerating Plants (Rev.2020)

ICS Class Rules-Chapter 13-Materials ( Rev.2020)

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Exam Questions

1. The machinery, boilers and other pressure vessels, associated piping systems and fittings shall be of a design and construction adequate for the service for which they are intended and shall be so installed and protected as to reduce to a minimum any danger to persons on board, due regard being paid to moving parts, hot surfaces and other hazards.

True

False

2. Main propulsion machinery and all auxiliary machinery essential to the propulsion and the safety of the ship shall, as fitted in the ship, be designed to operate when the ship is upright and when inclined at any angle of list up to and including 15° either way under static conditions and 22.5° under dynamic conditions (rolling) either way and simultaneously inclined dynamically (pitching) 7.5° by bow or stern.

True

False

3. Internal combustion engines of a cylinder diameter of 200 mm or a crankcase volume of 0.6 m3 and above shall be provided with crankcase explosion relief valves of a suitable type with sufficient relief area. The relief valves shall be arranged or provided with means to ensure that discharge from them is so directed as to minimize the possibility of injury to personnel.

True

False

4. Main turbine propulsion machinery and, where applicable, main internal combustion propulsion machinery and auxiliary machinery shall be provided with automatic shutoff arrangements in the case of failures such as lubricating oil supply failure which could lead rapidly to complete breakdown, serious damage or explosion

True

False

5. Every ship shall be provided with a main steering gear and an auxiliary steering gear to the satisfaction of the Administration. The main steering gear and the auxiliary steering gear shall be so arranged that the failure of one of them will not render the other one inoperative.

True

False

6. The main steering gear and rudder stock shall be:

Adequate strength and capable of steering the ship at maximum ahead service speed which shall be demonstrated;

capable of putting the rudder over from 35° on one side to 35° on the other side with the ship at its deepest seagoing draught and running ahead at maximum ahead service speed and, under the same conditions, from 35° on either side to 30° on the other side in not more than 28s.

All of the above

7. Main and auxiliary steering gear power units shall be:

Arranged to restart automatically when power is restored after a power failure; and

Capable of being brought into operation from a position on the navigation bridge. In the event of a power failure to any one of the steering gear power units, an audible and visual alarm shall be given on the navigation bridge.

All of the above

8. Main and auxiliary machinery essential for the propulsion and safety of the ship shall be provided with effective means for its operation and control. Indicators shall be fitted on the navigation bridge for:

Propeller speed and direction of rotation in the case of fixed pitch propellers;

Propeller speed and pitch position in the case of controllable pitch propellers;

All of the above

9. Every steam boiler and every unfired steam generator shall be provided with not less than two (2) safety valves of adequate capacity.

True

False

10. Each oil-fired boiler which is intended to operate without manual supervision shall have safety arrangements which shut off the fuel supply and give an alarm in the case of low water level, air supply failure or flame failure.

True

False

11. Water tube boilers serving turbine propulsion machinery shall be fitted with a high-water-level alarm.

True

False

12. Every steam pipe and every fitting connected thereto through which steam may pass shall be so designed, constructed and installed as to withstand the maximum working stresses to which it may be subjected. Means shall be provided for draining every steam pipe in which dangerous water hammer action might otherwise occur. If a steam pipe or fitting may receive steam from any source at a higher pressure than that for which it is designed a suitable reducing valve, relief valve and pressure gauge shall be fitted.

True

False

13. Machinery spaces of category A shall be adequately ventilated so as to ensure that when machinery or boilers therein are operating at full power in all weather conditions including heavy weather, an adequate supply of air is maintained to the spaces for the safety and comfort of personnel and the operation of the machinery. Any other machinery space shall be adequately ventilated appropriate for the purpose of that machinery space.

True

False

14. In cargo ships at least two (2) power pumps connected to the main bilge system shall be provided, one of which may be driven by the propulsion machinery. If the Administration is satisfied that the safety of the ship is not impaired, bilge pumping arrangements may be dispensed with in particular compartments.

True

False

15. At least two (2) independent means shall be provided for communicating orders from the navigation bridge to the position in the machinery space or in the control room from which the speed and direction of thrust of the propellers are normally controlled; one of these shall be an engine-room telegraph which provides visual indication of the orders and responses both in the machinery spaces and on the navigation bridge. Appropriate means of communication shall be provided from the navigation bridge and the engine-room to any other position from which the speed or direction of thrust of the propellers may be controlled.

True

False

16. At least two (2) independent means shall be provided for communicating orders from the navigation bridge to the position in the machinery space or in the control room from which the speed and direction of thrust of the propellers are normally controlled; one of these shall be an engine-room telegraph which provides visual indication of the orders and responses both in the machinery spaces and on the navigation bridge. Appropriate means of communication shall be provided from the navigation bridge and the engine-room to any other position from which the speed or direction of thrust of the propellers may be controlled.

True

False

17. Electrical installations shall be such that:

All electrical auxiliary services necessary for maintaining the ship in normal operational and habitable conditions will be ensured without recourse to the emergency source of electrical power;

b) Electrical services essential for safety will be ensured under various emergency conditions; and

The safety of passengers, crew and ship from electrical hazards will be ensured.

All of the above

18. A self-contained emergency source of electrical power shall be provided.

True

False

19. A self-contained emergency source of electrical power shall be provided.

In boiler air supply casings and exhausts (uptakes); and

In scavenging air belts of propulsion machinery,

All of the above

20. An alarm system shall be provided indicating any fault requiring attention.

True

False