2A652 (Age Journeyman) Volume 2, Edit Code 6
2A652 vol 2 Ed. 6
- 1.(201) Every atom must contain these types of particles.
- A.
Electrons and protons.
- B.
Electrons and neutrons.
- C.
Protons and neutrons.
- D.
Electrons, protons, and neutrons.
- 2.(201) Up to how many valence electrons are needed to make a good conductor?
- A.
3.
- B.
4.
- C.
5.
- D.
6.
- 3.(201) The term "dielectric" is used to describe
- A.
Conductors.
- B.
Insulators.
- C.
Doped atoms.
- D.
Semi-conductors.
- 4.(202) This defines the flow or drift of electrons through a conductor in the same direction at the same time.
- A.
Conductivity.
- B.
Voltage.
- C.
Current.
- D.
Valence.
- 5.(202) This is used to control current flow in a circuit.
- A.
Voltage.
- B.
Coulombs.
- C.
Resistance.
- D.
Conductivity.
- 6.(202) The relationship of voltage, current, and resistance is expressed through
- A.
E, I, and C formula.
- B.
Power formulas.
- C.
Conductance.
- D.
Ohm’s Law.
- 7.(203) Total current in a series circuit
- A.
Remains the same throughout the circuit.
- B.
Is the sum of the current through each component.
- C.
Is the reciprocal of the current through one component.
- D.
Is the reciprocal of the sum of the currents through each component.
- 8.(203) In a series circuit, 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.
- 9.(203) What is the voltage drop in a series circuit with a power rating of 9.68 watts, resistances of .55 kilo ohms, 4 k ohms, and 450 ohms, and current flow through the resistors of 44 milliamp (ma), 44 ma, and 44 ma?
- A.
20 volt (v).
- B.
220v.
- C.
425v.
- D.
441v.
- 10.(204) 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.
- 11.(204) Source current in a parallel circuit will be divided according to each branch’s
- A.
Voltage.
- B.
Power.
- C.
Length.
- D.
Resistance.
- 12.(204) What is the total resistance of a parallel circuit with branch voltages of 440 volt (v) and 440v and branch currents of 4 amp (a) and 16a?
- A.
11 ohms.
- B.
22 ohms.
- C.
44 ohms.
- D.
68.75 ohms.
- 13.(205) The area around a magnet where its influence can be felt, is defined as the
- A.
Magnetic theory.
- B.
Saturation principle.
- C.
Magnetic field.
- D.
Law of attraction and repulsion.
- 14.(206) 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.
- 15.(206) In a simple generator, which would be the most difficult method used to increase the output?
- A.
Increase the area of the conductor.
- B.
Increase the amount of motion.
- C.
Increase the strength of the magnetic field.
- D.
Increase the relative resistance.
- 16.(206) The principle behind all electromechanical generation that many aerospace equipment devices have as their basis is
- A.
Conduction.
- B.
Commutation.
- C.
Rectification.
- D.
Electromagnetic induction.
- 17.(206) The function of the commutator in a direct current (DC) generator is to
- A.
Complete the circuit to the load.
- B.
Induce DC into the external circuit.
- C.
Rectify the input.
- D.
Change alternating current (AC) voltage to DC voltage.
- 18.In which form does an inductor store energy as an electromagnetic device?
- A.
Heat.
- B.
Resistance.
- C.
Magnetic field.
- D.
Electrostatic field.
- 19.(207) When direct current is applied to an inductor reaches maximum, and is steady, the magnetic field around the inductor will.
- A.
Collapse.
- B.
Stop expanding.
- C.
Start to decrease slowly.
- D.
Continue to expand slowly.
- 20.(207) The process by which a current, or voltage, change in one coil produces a varying current in another coil is called
- A.
Inductance.
- B.
Self-induction.
- C.
Mutual induction.
- D.
Inductive reactance.
- 21.(208) A step-up transformer has this many turns of a wire in the secondary windings over the primary windings.
- A.
Equal.
- B.
Less.
- C.
More.
- D.
None.
- 22.(209) Basically, a relay is an electrically operated
- A.
Meter.
- B.
Motor.
- C.
Switch.
- D.
Safety device.
- 23.(209) Once energized, a relay requires a second coil to be energized before the contacts will return to their original positions. This is called a
- A.
Locking relay.
- B.
Latching relay.
- C.
Timing relay.
- D.
Tripping relay.
- 24.(210) A capacitor stores energy in the form of
- A.
Heat.
- B.
Resistance.
- C.
A magnetic field.
- D.
An electrostatic field.
- 25.(210) In a capacitor, the dielectric is also known as the
- A.
Outer case.
- B.
Positive lead.
- C.
Insulator.
- D.
Conductor.
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