Small Vessel Second Engineer 060-03 - Auxiliary Equipment Part I Exam

The process of controlling the flow of a fluid, such as opening or closing a valve, from a distance using a remote device like a switch, lever, or control panel.

These valves are often used in tanks to quickly shut off the flow of fluids, especially during emergencies or to prevent spillage.

Quick closing valves are installed to prevent the sudden release of a large volume of fluid, potentially causing damage or injury. They can also be used to control pressure surges or to isolate sections of a pipeline.

A type of pump that uses a rotating impeller to transfer energy to a fluid, causing it to move in a circular motion and be pushed out.

A centrifugal pump requires a certain amount of liquid to fill its impeller chamber before it can start pumping. If there is no liquid in the chamber, the pump will not start.

A large pressure vessel used to store compressed air, ensuring a constant supply for various applications.

Safety features on air receivers include pressure relief valves (to release excess pressure), pressure gauges (to monitor pressure), safety valves (to release pressure if the main valve fails), and fusible plugs (to melt and release pressure if the temperature gets too high).

The process of converting hydraulic energy (pressure and flow) into mechanical motion using components such as pumps, motors, valves, and actuators to perform a specific task.

The measure of the amount of water vapor present in the air, expressed in grams per cubic meter.

The percentage of moisture present in the air compared to the maximum amount it can hold at a given temperature.

The temperature at which air becomes saturated with water vapor and condensation begins to form.

In the event of telemotor system failure, an emergency backup system or a manual steering mechanism can be used for managing the steering.

If the entire hydraulic system fails, steering can be achieved by mechanical means, potentially through a manual backup steering system or by employing an emergency fallback method.

A type of material commonly used in bearing surfaces due to its low friction and wear resistance, suitable for applications where a smooth, durable contact surface is required.

Plastics can be used as bearing materials, offering advantages such as low friction and corrosion resistance. However, their load-bearing capacity may be limited compared to other options.

A condition in a three-phase AC motor where only one phase is active. This causes uneven magnetic fields, leading to reduced motor speed and efficiency.

It can lead to overheating, reduced torque, and potential damage to the motor. Single phasing significantly impacts the performance and functionality of the motor.

To protect against single phasing, a device called an overcurrent relay is incorporated in the motor starter circuit. This relay detects a phase imbalance and triggers an automatic shutdown of the motor before significant damage occurs.

A switchboard used to control and distribute electrical power, specifically designed for AC generators, often with features for single and parallel operation.

Devices fitted to the switchboard include circuit breakers (to interrupt the current if there is a fault), fuses (to protect against overloads), relays (to automate responses), voltage regulators (to maintain stable voltage), and protective grounding devices (to ensure safe grounding).

Each device plays a crucial role in preventing damage to generators, equipment, and people, ensuring safe and reliable operation.

An enclosure that is designed to prevent the ignition of external flammable atmospheres in the surrounding environment. It typically features a robust construction, explosion-proof seals, and internal pressure relief mechanisms.