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15 Cards in this Set

  • Front
  • Back
What is a megawatt?
one million (1,000,000) Watts
What is meant by reactive power in an AC circuit?
The power consumed in the inductive and capacitive reactances in an AC circuit. Reactive power is also called wattless power.
In what units is reactive power expressed?
In volt-amps reactive (VAR), or kilovolt- amps reactive (KVAR).
What is meant by power factor in an AC circuit?
The ratio of true power to apparent power. It is also the ratio of circuit resistance to circuit impedance.
Why is the closed-circuit voltage of a lead acid battery lower than its open circuit voltage?
Voltage is dropped across the internal resistance of the battery.
What is a detail drawing?
A drawing that includes all the information needed to fabricate the part.
What is a block diagram?
A drawing that shows various functions of a system by a series of blocks. These blocks do not include any detail, but indicate what happens in each block.
What is the purpose of a sketch of a repair?
It shows a specific bit of information and includes the minimum amount of detail needed to manufacture the part.
What are four steps in making a sketch?
Block in the the space and basic shape
Add details to the basic block
Darken lines that are to show up as visible lines
Add dimensions and any other info.
What is included in the empty weight of an aircraft?
The airframe, engines, permanently installed operating equipment, optional &special equipment, fixed ballast, hydraulic fluid, engine oil, and unusable fuel.
Where is the maximum allowable gross weight of an aircraft found?
TCDS
Type Certificate Data Sheet
Where do you find the arm of an item installed in an aircraft?
TCDS
Type Certificate Data Sheet
What is meant by moment index?
A moment divided by a constant such as 10, 100, or 1,000
What is the significance of the empty weight center of gravity range of an aircraft?
If the empty weight CG falls within the EWCG range, the aircraft cannot be legally loaded in a way that its CG will fall outside of the allowable loaded CG range. Not all aircraft have a EWCG.
What is meant by the Mean Aerodynamic Chord (MAC)?
The chord of an imaginary airfoil that has the same aerodynamic characteristics as the actual airfoil.