Mechanical Theory Flashcards
Are used as a reservoir to top up a tank or system
Header Tanks
Are used as a reservoir of clean, water free supply of fuel
Service Tanks
Are used to collect oil returning from a system and act as a reservoir
Drain Tanks
Indicates how much liquid remains in a tank with a dial
Contents Gauge
Shows a visual indication of tank
Gauge Glass
Measures the Depth of liquid in a tank
Sounding Tube, Dip tape and sounding tape
What is a Strainer used for?
Strainers are used to filter out and remove metal and large particles
What Pipework is Used For High Pressure Salt Water Systems (HPSW)
Phosphor Bronze
Copper Pipework is used for?
Domestic water/ Fresh water
What Pipework is used for Castings, Taps and Valves?
Brass
Plastic Pipework is used for?
Sewage, Prewet, Waste water
What Pipework is used for Engine Lube Oil?
Copper Nickel
What is a gasket?
Gaskets sit between 2 metals to make it 100% flat provides a seal
Name 3 types of Seals
Mechanical Seal
Keelering Couplings
Gland Packing
Name the 6 materials gaskets can be made out of?
Non Asbestos Fiber (NAF) Paper Rubber Leather Copper Cork
Define Valves?
Valves Control the flow of a liquid or gas
Name All 8 types of Valves?
Globe Valve Gate Valve Flap Valve Saunders Valve Ball Seated Cock Relief Valve Reducing Valve Non Return Valve
Name All types of Valves?
Globe Valve Gate Valve Flap Valve Saunders Valve Ball Seated Cock Relief Valve Reducing Valve Non Return Valve
State Bermoullis Principle?
As the speed of a moving fluid increases, pressure within fluid decreases
What does a motor do?
Motors convert electrical energy into mechanical motion
Name all 5 System indicators
Pressure and Vacuum gauges Tachometers Thermometers Flow meters Voltage meters
What is the Purpose of Filters?
Filters remove smaller particles usually made of absorbent materials
Name 2 filters
Metallic filters
Absorbent filters
What is the function of an accumulator
Store pressure in form of compressed gas acting like a pulsation damper
