Basic Electronic Components Quiz Review

The voltage of a fully charged capacitor is equal to the voltage of the energy source.

false

Which of the following applies to ampacity?

Both amperes and capacity

The numbers used to identify wire diameter and ampacity are directly related to AWG sizes.

false

A conductor is a material through which electrons flow ____________________.

easily/freely

Fuses and circuit breakers are rated in _________________.

amperes

When two wires are the same lenght, the wire with the larger cross-sectional area has less resistance.

true

In addition to metals, certain _____________ are also used as conductors under special conditions.

minerals/ores

The most common units for capacitance are __________________ and ____________________.

farad, columb

Describe the main difference between a conductor and an insulator.

Conductors allow electrons to flow easity through an electrical circuit, while insulators do not.

Copper is preferred for electrical conductors because it has which of the following features?

low resistance, resistance to corrosion, high conductivity

The ampacity of an insulated wire depends on which of the following properties?

Its gauge, Thermal properties of its insulation

A resistor has a ___________ value of resistance.

fixed/set/permenant

The first three stripes of the resistor color code indicate the _________________ of the resistor. The fourth stripe shows the _____________ of the resistor.

numerical, tolerance

A fully charged capacitor ______________ direct current from flowing in the circuit.

blocks/prohibits/repels/prevents/stops

A potentiometer is most often used to vary the value of the _________________ applied to the circuit.

resistance

The ampacity rating for aluminum and copper-clad aluminum are identicle for all gauges and tempuratures.

true

Insulated copper wire gauges have a lower ampacity rating than comparable aluminum wire gauges for all insulators.

false

The standard unit for measuring conductor cross-sectional area is _________________.

circular mills/cmils

A circuit breaker or fuse provides protection from ______________________.

overcurrent

10 AWG copper wire should not exceed ______________.

30A

12 AWG aluminum and copper-clad aluminum wire shall not exceed _____________.

15A

To control a lamp from two different locations, you would use what kind of switch?

Single Pole, Double Throw (SPDT)

Capacitance is the ability of circuit to store an electrical charge.

true

The three factors that determine capacitance are:

The material used as a dielectric, the area of the plates, the distance between the plates.

No. 16 and No. 18 AWG wires are not given ampacity rating.

true

What is the circular mil area of No. 22 copper wire?

642.2

A mil equals _______________ of an inch.

1/1000

In an insulated wire, the tempurature coding HH indicates a maximum allowable tempurature of ___________.

90 degrees

A capacitor is made of two __________ of conductive material, separated by an insulator called the ____________.

plates, dielectric

Which of the following insulation materials soften and flow when they are heated and subjected to pressure, but they become rigid when cooled.

Thermoplastic materials (plastic resins)

Insulation code R is given for:

Rubber

The term AWG stands for:

American Wire Gauge

Which of the following conductors will have a reddish brown color?

Copper

Which of the following is significant as it gives the maximum safe current-capacity for conductors?

Ampacity

resistors are used to control ___________ and _____________.

voltage, current

The basic unit of resistance is the _____________.

watts

The energy stored in a charged capacitor is in form of an ________________ field between its plates.

electric

In almost all metal conductors, the resistance decreases as the metal's tempurature increases.

false

What does the abbreviation DPDT mean?

Double Pole Double Throw