Test #3

Question 1

1) What does VA stand for?
a) Volt amps reactive
b) Volt amps resistive
c) Apparent Power
d) Volt amps relative

Answer 1

c) Apparent Power

Question 2

2) Frequency in an capacitive circuit is ?
a) Directly proportional to capacitive reactance
b) Inversely proportional to capacitive reactance
c) Out of phase by 90°
d) Out of Phase by 180°

Answer 2

b) Inversely proportional to capacitive reactance

Question 3

3) In some capacitors, there is a small amount of current that flows from one plate, through the dielectric material to the other plate. This current is called _____ current.
a) leakage
b) bad current bad bad current
c) electrostatic
d) electrolytic

Answer 3

a) leakage

Question 4

4) What is power factor?
a) The difference between true power and reactive power
b) The difference between leaf’s losing and the bruins winning
c) The way current leads voltage by 90° in an inductor.
d) The difference between true power and apparent power

Answer 4

d) the difference between true power and apparent power

Question 5

5) What is the basic unit of inductance?
a) henry
b) farad
c) ohm
d) coulomb

Answer 5

a) Henry

Question 6

6) What is the name of the voltage that impressed voltage is opposed to by 180°?
a) Active
b) Induced
c) Cumulative
d) Applied

Answer 6

d) applied

Question 7

7) What is the value of XC directly proportional to?
a) Frequency
b) Current
c) Nothing
d) stresses

Answer 7

c) nothing

Question 8

8) The unit of Capacitance is _____.
a) Farad
b) ohm
c) henry
d) hertz

Answer 8

a) Farad

Question 9

9) What does θ stands for?
a) The angle of declination from the voltage source
b) The thing that the Greeks use to say
c) The phase angle of power factor
d) The angle of a 4 point saddle

Answer 9

c) the phase angle of power factor

Question 10

10) What is a device that opposes a change of voltage?
a) an inductor
b) a capacitor
c) a diode
d) a rectifier

Answer 10

b) a capacitor

Question 11

11) The total resistive value in an inductive resistive circuit is called what?
a) Impudence
b) Impedance
c) Imperative
d) Impressed

Answer 11

b) impedance

Question 12

12) Energy in a capacitor is stored as an _____.
a) electrostatic charge
b) magnetic field
c) electromagnetic field
d) circulating current

Answer 12

a) electrostatic charge

Question 13

13) The voltage rating of a capacitor _____.
a) can be exceeded as long as the time is under one hour
b) should never be exceeded
c) is only a suggested maximum
d) is a minimum working voltage

Answer 13

b) should never be exceeded

Question 14

14 To what is inductive reactance directly proportional to?
a) The distant between plates.
b) Frequency
c) Current
d) Voltage

Answer 14

b) frequency

Question 15

15) What are the three factors that determine induced voltage?
a) The number of turns of wire, the strength of the magnetic field, the voltage applied
b) The amount of current, the resistivity of the wire, the voltage applied.
c) The size of the inductor, the applied voltage, the frequency
d) The strength of the magnetic field, the number of turns of the wire, The speed of the cutting action

Answer 15

d) the strength of the magnetic field, the number of turns of the wire, The speed of the cutting action.

Question 16

16) Volt-amperes-reactive is used to measure the _____ in a pure inductive circuit.
a) watts
b) reactive power
c) coulombs
d) joules

Answer 16

b) reactive power

Question 17

17) Non-Polarized capacitors _____.
a) must be used with AC only
b) must be used with DC only
c) can be used with either AC or DC
d) Can only be used in the polar regions

Answer 17

b) must be used with DC only

Question 18

18) What is one of the determining factors for capacitance in a capacitor?
a) The amount of current that flows in the capacitor
b) The type of dielectric.
c) The true power rating of the capacitor.
d) The surface area of the plates

Answer 18

d) the surface area of the plates

Question 19

19) When we apply an ac power source to a Capacitor we have reactance. What is reactance in actual electrical terms?
a) The amount of resistance in the capacitor
b) A voltage
c) A change in the current of the capacitor
d) A force for evil.

Answer 19

b) A voltage

Question 20

20) What are the three factors that determine capacitance?
a) Surface area of plates, the type of dielectric used, distance between plates.
b) The frequency, the resistance value, the current
c) The voltage, the frequency, the power.
d) The area of the dielectric, the number of protons in the nucleus, the number of coulombs per second

Answer 20

a) surface area of plates, the type of dielectric used, distance between plates.

Question 21

What does VARs stand for

Answer 21

Volt Amps Reactive

Question 22

What does VARs stand for

Answer 22

Volt Amps Reactive