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POVL-WK4
MARINE LICENSE - HK - WK4
question | answer |
---|---|
"question | answer" |
"Engine 2 stroke (Diesel or Petrol?) | Petrol" |
"Engine 4 stroke (Diesel or Petrol?) | Deisel" |
"4 engine systems? | Fuel, Cooling, Lubrication, Exhaust" |
"SAE | Society of Automotive Engineers" |
"Viscosity | Resistence to flow" |
"4 events of an engine | Induction, Compression, Power (Combustion), Exhaust" |
"Petrol Engine Typical Compression Ratio | 7:1" |
"Diesel Engine Typical Compression Ratio | 20:1" |
"Carb Venturi | Low pressure" |
"Carb Throttle | Open for air/fuel mixture increase flow" |
"Carb Choke | To restrict air flow for cold start" |
"Carb Atomized | Fine spray of fuel and air" |
"Carb Float Chamber | Fills with petrol" |
"Carb Needle Valve | Allows petrol into float chamber" |
"Carb Main Jet | For idle" |
"3 Functions of Gear Box | Speed Reduction, Reverse, Neutral" |
"Engage/Dis-engage gears | Dog clutch" |
"Weak point in power train | Shear Pin" |
"Diesel compression | 2000:1" |
"Diesel do's and donts | Keep fuel clean, keep fuel system primed, need to bleed if air in system" |
"Air movement in/out, natural | Natural Aspiration (engines)" |
"More air added to engine | Turbo charged, exhaust fan and intake fan" |
"Keep water out on prop shaft | Stern Gland" |
"2 Types of Bilge Pumps | Piston and Diaphram" |
"Bilge Pump Filter | Strum" |
"Life Jacket and Bouancy aid | They are different" |
"Fire buckets on craft over 45 ft | Painted Red, fitted with lanyard, kept full of sand or water" |
"Marine Rescue Coordination Center | Call upon SAR resources, coordinate rescue and control, assess type of assitance required in an emergency" |
"A sea anchor can be used to | Position a disabled vessels head into wind" |
"Exhaust is blue color means? | Oil burning" |
"Governor is used to? | Maintain steady speed" |
"Engine temp controlled by? | Thermostat" |
"Cooling water in crankcase? | Greyish white liquid" |
"After running engine for a while, do not stop immediately, but allow to run at idle for 10 minutes. Why? | To allow to cool down" |
"What is a snubbing line used for? | To protrect windlass from shock loading" |