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WorksheetsBlock 6 Q/A slide 1
Total questions: 28
Worksheet time: 15mins
What does Ohm’s Law state?
Basic mathematical relationships of electricity
Basic mathematical relationships of resistance
Basic mathematical relationships of current
Electrical current is the?
movement of voltage
flow of electromotive force
movement of electrons
Current is typically measured in?
Coulomb
Ampere
Joules
The symbol for current is.
E
I
A
What is Electrical Theory?
Flow from Negative to Positive
Flow from Positive to Negative
Flow from Negative to Negative
What does EMF stand for?
Electrical Mass Force
Electron Motive Force
Electromotive Force
Resistance of a conductor determines.
The amount of current that can flow through it.
The voltage across the conductor.
The temperature of the conductor.
The length of the conductor.
If the resistance of a circuit is doubled and the voltage is held constant?
Then the current through the resistor is cut in half
The voltage is increased in pressure throughout
The insulation will strengthen under any given load
What are the factors affecting Resistance? Select all that apply!
Type of conductor material
Inversely proportional to its cross-sectional area
Directly proportional to length
Air gap in material
What is Electromagnetic induction?
Process of producing a voltage, by moving a magnetic field in relationship to a conductor
Process of producing a current, by moving a magnetic field in relationship to an insulator
Process of producing a voltage, by moving an electric field in relationship to a metal structure
Either the magnetic field can rotate or the?
Electrons
Conductor
Field Magnets
Difference between AC and DC power? Select all that apply?
AC can be transmitted over long distances more readily
and more economically than DC
since AC voltages can be increased or decreased by means of transformers
Space and weight can be saved since AC devices are smaller and simpler
What is a cycle?
Reverse pattern
Completion of a pattern
What is Alternation?
Half radius of a cycle
Half of the cycle
End of cycle
What degree is Positive Alternation?
270
180
90
What is frequency?
AC waveform repeats, number of cycles per second
Wavelength repeating under direct current flow
Speed of current flow under resistance
What is a period?
Time is the form of electrons measured in milliseconds
Time sine wave to complete one cycle measured in seconds
Time under A/C sine wave to complete one cycle measured in seconds
What is the wavelength?
Distance that a wave form travels during a period
Distance that a wave travels to convert a cycle
Distance that a wave form travels to subvert voltage
What is inductance?
Induce effects of electron resonance in metal strength oppose any change in current through it
Inductance effects of the wiring in electrical circuitry oppose any change in current through it
The primary effect of a coil in its property to oppose any change in current through it
Capacitance is represented by which device?
Resistor
Capacitor
Inductor
Transformer
What is the basic unit of capacitance?
Farad
Henry
Ohms
AC circuit is opposed by what?
Impedance
Resonance
Current Stress
Circuit containing all 3 of these oppositions is often referred to as an __ circuit?
BLC
RCL
DCL
What letter represents impedance and the unit of measurement for it?
X / A/C
Z / OHMS
E / D/C
What are the two main types of secondary cell batteries we use in Aviation?
Primary cell batteries/ Secondary cell batteries
Secondary cell batteries/ Open Seal batteries
Wet or Flood batteries/ NiCad Batteries
Lead- Acid batteries cell produces.
2.3 V
2.2 V
2.1 V
NiCd batteries cells are rechargeable and deliver a voltage of ?
1.4 V
1.2 V
1.5
For lead-acid batteries, the voltage per cell must not exceed.
2.38 V
2.33 V
2.35 V
