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30 Cards in this Set
- Front
- Back
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When gases are compressed, the storage tanks should be located as close to the point of use as possible because:
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the flow rate is directly proportional to the distance traveled
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which of the following is associated with rotational rate?
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the shaft of an electric drill
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which of the following is associated with linear rate?
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buckshot fired from a gun
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thermal resistance is opposition to...
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the flow of thermal resistance
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low thermal resistance allows...
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high heat flow rate
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define electrical resistance
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the opposition to electron flow in an electric circuit
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voltage formula
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= RE*I
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current formula
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= V/RE
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define viscosity
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the thickness of a fluid
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define scale
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a device that measures the mass of an object
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define pressure drop
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the loss of pressure in relation to the area of the pipe
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list 4 examples of friction
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brakes
drive shaft transmission pistons |
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list 3 examples of drag
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airplane
car submarine |
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qh stands for what
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heat flow rate
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h stands for what in most cases?
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heat
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t can stand for both ____ and ___
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time and temp.
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a stands for
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area
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latent heat is also know as
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hidden heat
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one coulomb =
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one amp per sec.
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an amp is a unit of what?
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current
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a watt is a unit of what?
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power
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hertz is cycles per what?
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second
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define cycle
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continuous happening of events
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what is the frequency formula
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F= N/T
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define speed
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the rate of movement
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what is the units for rotational speed?
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RPM ( revolutions per minute)
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define force
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push or pull
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what is the SI unit for force?
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newtons
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what is a vector?
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the magnitude and direction of force
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1 kilogram = how many newtons?
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9.8
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