A Physics Practice Guide For Beginner's
(287).jpg "A Physics Practice Guide For Beginners - Quiz")
Want to brush up on your science basics? Do you think you can pass this quiz? What do you understand by magnetic theory? What is a dielectric? How electricity travels? Check out our online quiz to see how much you know and enhance your knowledge. Go for it!
- 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.
Correct Answer
A. Electrons and protons. -
- 2.
(201) Up to how many valence electrons are needed to make a good conductor?
- A.
3.
- B.
4.
- C.
5.
- D.
6.
Correct Answer
A. 3. -
- 3.
(201) The term "dielectric" is used to describe
- A.
Conductors.
- B.
Insulators.
- C.
Doped atoms.
- D.
Semi-conductors.
Correct Answer
B. Insulators. -
- 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.
Correct Answer
C. Current. -
- 5.
(202) This is used to control current flow in a circuit.
- A.
Voltage.
- B.
Coulombs.
- C.
Resistance.
- D.
Conductivity.
Correct Answer
C. Resistance. -
- 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.
Correct Answer
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.
Correct Answer
A. Remains the same throughout the circuit. -
- 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.
Correct Answer
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.
Correct Answer
B. 220v. -
- 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.
Correct Answer
C. Voltage across each branch. -
- 11.
(204) Source current in a parallel circuit will be divided according to each branch’s
- A.
Voltage.
- B.
Power.
- C.
Length.
- D.
Resistance.
Correct Answer
A. Voltage. -
- 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.
Correct Answer
B. 22 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.
Correct Answer
C. Magnetic field. -
- 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.
Correct Answer
B. A conductor. -
- 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.
Correct Answer
B. Increase the amount of motion. -
- 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.
Correct Answer
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.
Correct Answer
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.
Correct Answer
C. Magnetic 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.
Correct Answer
B. Stop expanding. -
- 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.
Correct Answer
C. Mutual induction. -
- 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.
Correct Answer
C. More. -
- 22.
(209) Basically, a relay is an electrically operated
- A.
Meter.
- B.
Motor.
- C.
Switch.
- D.
Safety device.
Correct Answer
C. Switch. -
- 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.
Correct Answer
B. Latching relay. -
- 24.
(210) A capacitor stores energy in the form of
- A.
Heat.
- B.
Resistance.
- C.
A magnetic field.
- D.
An electrostatic field.
Correct Answer
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.
Correct Answer
C. Insulator. -
- 26.
(210) What is the opposition of a capacitor to alternating current (AC) called?
- A.
Inductive reactance.
- B.
Impedance.
- C.
Capacitive reactance.
- D.
Capacitance.
Correct Answer
C. Capacitive reactance. -
- 27.
(210) The factors that determine the time required to charge a capacitor are the capacitance size and the
- A.
Circuit current.
- B.
Applied voltage.
- C.
Type of dielectric.
- D.
Amount of resistance.
Correct Answer
D. Amount of resistance. -
- 28.
(211) A diode has a fairly simple construction and the diode’s anode is constructed of this type of material.
- A.
Neutral (N).
- B.
Biased (B).
- C.
Positive (P).
- D.
Negative.
Correct Answer
C. Positive (P). -
- 29.
(211) A diode placed in a circuit in reverse bias is being used as
- A.
A spike protector.
- B.
An amplifier.
- C.
A regulator.
- D.
A rectifier.
Correct Answer
A. A spike protector. -
- 30.
(212) A Zener diode will conduct in reverse-bias
- A.
For a second or two at a time.
- B.
Until the gate potential has been reached.
- C.
Once the avalanche point has been reached.
- D.
Until an operational breakdown point has been reached.
Correct Answer
C. Once the avalanche point has been reached. -
- 31.
(212) This happens to the Zener diode in the forward-bias direction.
- A.
Is destroyed.
- B.
Acts as a normal diode.
- C.
Conducts at zener value.
- D.
Exceeds the peak inverse voltage rating.
Correct Answer
B. Acts as a normal diode. -
- 32.
(212) A Zener being used as a regulator must have a resistor placed in the circuit in
- A.
Series.
- B.
Parallel.
- C.
Everse-bias.
- D.
Series-parallel.
Correct Answer
A. Series. -
- 33.
(213) A light-emitting diode (LED) produces light when it is
- A.
Gated.
- B.
Neutral.
- C.
Forward-biased.
- D.
Reverse-biased.
Correct Answer
C. Forward-biased. -
- 34.
(213) What is the approximate operating voltage of a forward-biased light-emitting diode (LED)?
- A.
.5 volts.
- B.
.1 volt.
- C.
1.6 volts.
- D.
2.4 volts.
Correct Answer
C. 1.6 volts. -
- 35.
(214) How many PN junctions does the silicon-controlled rectifier (SCR) have?
- A.
One.
- B.
Two.
- C.
Three.
- D.
Four.
Correct Answer
C. Three. -
- 36.
(214) A silicon controlled rectifier (SCR) is mainly used as a/an
- A.
Fuse.
- B.
Spike protector.
- C.
Circuit breaker.
- D.
Electronic switch.
Correct Answer
D. Electronic switch. -
- 37.
(214) The amount of current required to gate a silicon-controlled rectifier (SCR) is called
- A.
Forward breakover voltage.
- B.
Holding current.
- C.
Peak voltage.
- D.
Gate current.
Correct Answer
A. Forward breakover voltage. -
- 38.
(214) In order for a silicon-controlled rectifier (SCR) to be turned off, the
- A.
Forward breakover voltage must exceed the holding voltage.
- B.
Current must drop below the holding current.
- C.
Negative amp switch must activate.
- D.
Negative volt switch must activate.
Correct Answer
B. Current must drop below the holding current. -
- 39.
(214) Which type of silicon-controlled rectifier (SCR) would be most effective to switch 4 amperes at up to 425 volts?
- A.
Low current.
- B.
Medium current.
- C.
High current.
- D.
Very high current.
Correct Answer
B. Medium current. -
- 40.
(215) Which troubleshooting step involves knowing proper equipment operation?
- A.
Analysis.
- B.
Recognition.
- C.
Repair and check.
- D.
Elimination and isolation.
Correct Answer
B. Recognition. -
- 41.
(215) During which troubleshooting step do you begin to use the schematic diagram as an invaluable tool?
- A.
Recognition.
- B.
Verification.
- C.
Analysis.
- D.
Isolation.
Correct Answer
C. Analysis. -
- 42.
(216) Which troubleshooting aid is designed to assist you in finding the actual unit location of electrical components?
- A.
Zones.
- B.
Schematic.
- C.
Wiring diagram.
- D.
Reference designation index.
Correct Answer
C. Wiring diagram. -
- 43.
(216) This troubleshooting aid is designed to assist you in finding components on a diagram.
- A.
Zone.
- B.
Schematic.
- C.
Wiring diagram.
- D.
Reference designation index.
Correct Answer
A. Zone. -
- 44.
(217) The bar graph of the 8025A multimeter is updated 10 times as often as the digital display. What does the bar graph indicate?
- A.
Absolute value.
- B.
Digital display.
- C.
Operating mode.
- D.
Range indication.
Correct Answer
A. Absolute value. -
- 45.
(217) When conducting current checks, you should connect the multimeter in the circuit in
- A.
Reverse order.
- B.
Series-parallel.
- C.
Parallel.
- D.
Series.
Correct Answer
D. Series. -
- 46.
(217) When performing a continuity check on a wire using the diode test mode, a good wire will register
- A.
As OL.
- B.
As zero.
- C.
As infinity.
- D.
A beep.
Correct Answer
D. A beep. -
- 47.
(218) Use this to set a value to the oscilloscope’s vertical grid markings.
- A.
Focus.
- B.
Pitch control.
- C.
Voltage selector.
- D.
Time sweep selector.
Correct Answer
C. Voltage selector. -
- 48.
(219) This could be the indication from the 8025A multimeter when you are checking a serviceable capacitor.
- A.
A beep.
- B.
An extended analog bar graph.
- C.
An OL display.
- D.
A 0 ohms display.
Correct Answer
B. An extended analog bar graph. -
- 49.
(219) How many junctions are checked to test the serviceability of a transistor?
- A.
1.
- B.
2.
- C.
3.
- D.
4.
Correct Answer
C. 3. -
- 50.
(220) One way you are able to identify electrostatic sensitive devices is by
- A.
The MIL-SPC–235 symbol or a warning marking.
- B.
The special coloring package as specified in local directives.
- C.
The MIL-STD–129 symbol or a caution marking.
- D.
A special control number as specified in local directives.
Correct Answer
C. The MIL-STD–129 symbol or a caution marking. -
Quiz Review Timeline +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
-
Current Version
-
Mar 19, 2022Quiz Edited by
ProProfs Editorial Team -
May 31, 2017Quiz Created by
Ronnie
- 1W0510 Quizzes
- 2A251 Quizzes
- 2A552 Quizzes
- 2A651 Quizzes
- 2A654 Quizzes
- 2A656 Quizzes
- 2A671 Quizzes
- 2A672 Quizzes
- 2A6X1 Quizzes
- 2A753 Quizzes
- 2A852 Quizzes
- 2AX7X Quizzes
- 2S051 Quizzes
- 2s071 Quizzes
- 2T251 Quizzes
- 3d052 Quizzes
- 3d054 Quizzes
- 3D151 Quizzes
- 3D152 Quizzes
- 3d1x3 Quizzes
- 3DX7X Quizzes
- 3e451 Quizzes
- 3e6x1 Quizzes
- 3P071 Quizzes
- 4a051 Quizzes
- 5j0x1 Quizzes
- Z3D153 Quizzes
- Z3dx7x Quizzes
- Z3p051 Quizzes
Back to top