CDC 2A652 Vol. 2

60 Questions | By Dinstaar2a652 | Updated: Mar 20, 2022 | Attempts: 2866

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Aerospace Ground Equipment Journeyman Electrical and Electrical Circuits and Components. Edit Code 05.

Questions and Answers

1.

Every atom must contain what types of particles?
- A.
  
  Electrons and protons.
- B.
  
  Electrons and neutrons.
- C.
  
  Protons and neutrons.
- D.
  
  Electrons, protons, and neutrons.
2.

An atom with eight electrons in its outermost shell is said to be
- A.
  
  Free.
- B.
  
  Stable.
- C.
  
  Valence.
- D.
  
  Ionized.
3.

How many valence electrons are needed to make a good conductor?
- A.
  
  3.
- B.
  
  4.
- C.
  
  5.
- D.
  
  6.
4.

"Dielectric" is the term used for
- A.
  
  Conductors.
- B.
  
  Insulators.
- C.
  
  Doped atoms.
- D.
  
  Semi-conductors.
5.

"The flow or drift of electrons through a conductor" in the same direction at the same time is
- A.
  
  Conductivity.
- B.
  
  Voltage.
- C.
  
  Current.
- D.
  
  Valence.
6.

The potential difference between two points in a circuit that exerts a force on free electrons is called
- A.
  
  Conductivity.
- B.
  
  Voltage.
- C.
  
  Current.
- D.
  
  Valence.
7.

What is used to control current flow in a circuit?
- A.
  
  Voltage.
- B.
  
  Coulombs.
- C.
  
  Resistance.
- D.
  
  Conductivity.
8.

The relationship of voltage, current, and resistance is expressed through
- A.
  
  E, I, and C.
- B.
  
  Power formulas.
- C.
  
  Conductance.
- D.
  
  Ohm's Law.
9.

Total current in a series circuit is equal to the
- A.
  
  Current through one component.
- B.
  
  Sum of the current through each component.
- C.
  
  Reciprocal of the current through on component.
- D.
  
  Reciprocal of the sum of the currents through each component.
10.

What is the wattage of a circuit with 28 volts applied and a total resistance of .2 ohms?
- A.
  
  .14 watts (w)
- B.
  
  .14 kilowatts (kw)
- C.
  
  3.92 w.
- D.
  
  3.92 kw.
11.

In a parallel circuit, the total voltage is equal to the
- A.
  
  Sum of the voltages across each branch.
- B.
  
  Voltage across each resistor.
- C.
  
  Voltage across each branch.
- D.
  
  The reciprocal of the voltage across the resistances.
12.

Source current in a parallel circuit will be divided according to branch
- A.
  
  Voltage.
- B.
  
  Powers.
- C.
  
  Lengths.
- D.
  
  Resistances.
13.

The area around a magnet where its influence can be felt is the definition of the
- A.
  
  Saturation principle.
- B.
  
  Magnetic theory.
- C.
  
  Magnetic field.
- D.
  
  Law of attraction and repulsion.
14.

"The ability of a material to pass lines of force" is a definition of
- A.
  
  Permeability.
- B.
  
  Reluctance.
- C.
  
  Electromagnetism.
- D.
  
  Retentivity.
15.

The magnetism that remains after the magnetizing force has been removed is known as
- A.
  
  Electromagnetism.
- B.
  
  Molecular magnetism.
- C.
  
  Permeability.
- D.
  
  Residual magnetism.
16.

The magnetic field of an electromagnet can be varied by changing the
- A.
  
  Type of core.
- B.
  
  Number of turns in the coil.
- C.
  
  Amount of current in the coil.
- D.
  
  All of the above.
17.

The electromechanical generation of a voltage requires a magnetic field, relative motion, and
- A.
  
  A complete circuit.
- B.
  
  A conductor.
- C.
  
  An insulator.
- D.
  
  A load.
18.

The principle behind all electromechanical generation is
- A.
  
  Conduction.
- B.
  
  Commutation.
- C.
  
  Rectification.
- D.
  
  Electromagnetic induction.
19.

The function of the commutator in a DC generator is to
- A.
  
  Complete the circuit to the load.
- B.
  
  Induce DC into the external circuit.
- C.
  
  Rectify the input.
- D.
  
  Change AC voltage to DC voltage.
20.

Because an inductor stores energy and then returns it to the circuit, it is called a
- A.
  
  Resistive device.
- B.
  
  Reactive device.
- C.
  
  Retentive device.
- D.
  
  Retroactive device.
21.

An inductor stores energy in the form of
- A.
  
  Heat.
- B.
  
  Resistance.
- C.
  
  A magnetic field.
- D.
  
  An electrostatic field.
22.

The process by which a current change in one coil produces a voltage in another coil is called
- A.
  
  Inductance.
- B.
  
  Self-induction.
- C.
  
  Mutual induction.
- D.
  
  None of the above.
23.

A transformer will change all of the following except
- A.
  
  Power.
- B.
  
  Current.
- C.
  
  Voltage.
- D.
  
  Resistance.
24.

Normally, the winding of a transformer that is connected to a power source is known as the
- A.
  
  Field winding.
- B.
  
  Primary winding.
- C.
  
  Current winding.
- D.
  
  Secondary winding.
25.

What kind of turns of wire is found in the secondary windings of a step up transformer?
- A.
  
  Equal.
- B.
  
  Less.
- C.
  
  More.
- D.
  
  All of the above.