Marine Engineering Systems Quiz

A specialized technique for joining cast iron components using welding.

Regular inspections of connecting rods in engines to ensure proper lubrication and prevent damage.

Methods for preventing vibrations and damage to machinery caused by water currents.

Actions to take when the boiler control system malfunctions, ensuring safe and continued operation.

Detecting leaks in boiler tubes and methods to temporarily seal them.

A check to ensure the oil passageways within the connecting rod are clear, ensuring proper lubrication and preventing damage.

The difference between a mechanical and air-electric turbine inlet control (TIC) lies in their actuation methods. Mechanical TIC utilizes a hydraulic or pneumatic system, while air-electric TIC relies on electric signals and actuators.

Borg geometry refers to the precise shape and alignment of the compressor housing, including the compressor blades and vanes. Nip is the clearance between the blade tip and the housing, while tangential runout measures the deviation of the blade tip from the housing's radial plane.

ME-C (Mechanical Engine Control) and MCC (Mechanical Control Center) both hold docon bolts. ME-C uses them to connect the engine to the control system for mechanical control, while MCC utilizes docon bolts in its internal assembly, ensuring proper functionality.

The difference in camshaft design between the 25 and 45 series of engines. This can include the driving mechanism, cam profile shape, individual parts, and timing verification methods.

A type of pump commonly used in engines, specifically mentioned in the context of materials handling. It likely refers to a multi-stage centrifugal water pump.

An opening or hole in the MCSW pump's casing, requiring specific repair procedures to address issues. This could involve sealing, replacement, or other corrective measures.

The process of documenting the complete name or designation of something, typically using a structured system. In this context, it refers to the full identification of the 45 825 engine series using the 'MESAE' system.

A specific engine model or series, likely referring to the 45 825 engine, known for its design characteristics and application.

The efficiency of a scavenging system in an engine, measured by the amount of air it extracts from the cylinder during the exhaust stroke.

The process of lubricating moving parts within an engine, usually involving a pressurized oil system that delivers lubricant to bearings, connecting rods, and other critical components.

Properties related to the viscosity, density, and lubricity of fuel oil, which affect its suitability for use in marine engines.

A common type of chain drive, used in various applications like engine-driven pumps, referring to its manufacturer and design.

Boiler burner automation is a system that controls the fuel, air, and ignition processes for a boiler burner system. A failure can be mechanical, electrical, or software-related.

A routine check of various components and parameters that ensures the proper operation of a boiler burner system.

This mechanism prevents the low-pressure (LP) turbine from overspeeding in case of a sudden loss of load or steam supply. It relies on the pressure difference between the HP and LP turbines. When the pressure difference falls below a certain limit, the LP cutout device activates, blocking the steam flow to the LP turbine and preventing damage.

In order to change the low-pressure (LP) turbine setting, you need to adjust the turbine's control system. This involves modifying the steam flow regulation mechanism to achieve the desired operating pressure and power output.

An EGB tube leak occurs when a crack or hole forms in the tube, leading to the escape of steam or water. To find the leak, use visual inspection, leak detection equipment, or soap bubbles. To repair a leak, you might use temporary patching or, more permanently, replace the damaged tube.

A 4B-0 zero setting refers to the calibration of the pump's zero position. During an overhaul, you must confirm this setting by ensuring that the pump's output aligns with the expected zero pressure point. This ensures the pump operates accurately and efficiently.

A device that detects and measures the concentration of oil mist in the air, often used in industrial settings to monitor air quality and ensure worker safety.

The process of removing or minimizing the presence of hydrocarbon compounds (such as SIG - sulfur in gasoline) from fuels through various techniques like refining or blending. This is crucial to reduce emissions that contribute to pollution.

The ratio of air to fuel in a combustion process, specifically in a broiler. This ratio has a huge impact on the broiler's efficiency and performance, affecting heat output, fuel consumption, and emissions.

A method for removing carbon deposits (soot) from a boiler. It involves using a specialized solution that cleanses the boiler and reduces the need for downtime and potential damage.

A type of carbon compound, often found in coal, that is used as fuel. It is known for having a high heat content, making it an efficient energy source.