What is the purpose of a tell-tale ring in a tube-type heat exchanger?
B) To provide a visual indication of leakage between the shell and tube sides
What is the purpose of a sliding tube plate in a tube-type heat exchanger?
B) To facilitate easy cleaning and maintenance of the heat exchanger
What does the term "afterburning" refer to in the context of a diesel engine?
B) The continuation of combustion after the fuel injection has ended
What does the term "density value" refer to in the context of a diesel engine?
B) The mass of the fuel per unit volume, indicating its concentration
What does "top dead centre" (TDC) refer to in the context of a diesel engine?
B) The point where the piston is at its highest position in the cylinder
What does the term "swept volume" refer to in a diesel engine?
B) The volume of air or fuel mixture that is displaced by the piston during one complete stroke
What does the term "calorific value" refer to in the context of a diesel engine?
A) The amount of heat energy released during fuel combustion
What is the purpose of baffle plates in a tube-type heat exchanger?
B) To direct the flow of the fluid, increasing turbulence and improving heat transfer efficiency
What is the purpose of a vent cock in a tube-type heat exchanger?
A) To release air or gas trapped inside the heat exchanger to prevent air locking
What does the term "piston stroke" refer to in a diesel engine?
A) The distance the piston moves from the top dead centre (TDC) to the bottom dead centre (BDC)
What does the term "scavenging" refer to in the context of a diesel engine?
B) The process of removing exhaust gases from the cylinder and replacing them with fresh air
What does the term "expansion" refer to in the context of a diesel engine?
B) The increase in volume of gases after combustion, driving the piston downward
What does the term "viscosity" refer to in the context of a diesel engine?
C) The measure of the fuel's resistance to flow, affecting its ability to be pumped and atomized
What does the term "overlap" refer to in the context of a diesel engine?
A) The period during which both the intake and exhaust valves are open
What does the term "compression" refer to in the context of a diesel engine?
B) The reduction in volume of air or air-fuel mixture in the cylinder before ignition
What does "bottom dead centre" (BDC) refer to in the context of a diesel engine?
B) The point where the piston is at its lowest position in the cylinder
What does the term "cetane number" refer to in the context of a diesel engine?
C) The measure of the fuel's ignition delay time and its ease of ignition
What is the purpose of anodes in a tube-type heat exchanger?
B) To protect the heat exchanger from corrosion by acting as a sacrificial material
What does the term "clearance volume" refer to in a diesel engine?
B) The volume of the cylinder above the piston when it is at top dead centre (TDC)
What does the term "compression ratio" refer to in a diesel engine?
B) The ratio of the volume of the cylinder when the piston is at bottom dead centre (BDC) to the volume when the piston is at top dead centre (TDC)
