A Physics Practice Guide For Beginner's
(287).jpg "A Physics Practice Guide For Beginner")
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.
- 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.
Questions: 85 | Attempts: 4199 | Last updated: Jan 7, 2013
-
Sample QuestionAfter shutdown a motor continues turning; this is known as
Questions: 87 | Attempts: 3908 | Last updated: Jan 4, 2021
-
Sample QuestionThe effect of noise depends on the
Questions: 64 | Attempts: 3716 | Last updated: May 27, 2021
-
Sample QuestionHow many valence electrons are needed to make a good conductor?
Back to top