Test Study

Question 1

Who discovered the electron?

Answer 1

J. J. Thompson

Question 2

Who invented the modern battery?

Answer 2

Alessandro Volta

Question 3

Who discovered the neutron?

Answer 3

James Chadwick

Question 4

Who created the conductivity table for metals?

Answer 4

Georg Ohm

Question 5

Who discovered the proton?

Answer 5

Ernest Rutherford

Question 6

In what order were the three subatomic particles discovered?

Answer 6

Electron, Proton, Neutron

Question 7

What are the three subatomic particles in order of greatest to least mass?

Answer 7

Neutron, Proton, Electron

Question 8

From greatest energy to least energy, what are the categories of electromagnetic waves?

Answer 8

Gamma Rays, X-Rays, Ultraviolet Light, Visible Light, Infrared Light, Microwaves, Radio Waves

Question 9

What subatomic particle’s quantity determines which element an atom is?

Answer 9

Proton

Question 10

What particles are in the nucleus of an atom?

Answer 10

Proton, Neutron

Question 11

What particles orbit the nucleus of an atom?

Answer 11

Electron

Question 12

What action as an IT worker could get you sued and possibly imprisoned?

Answer 12

Disclosing confidential data

Question 13

What is the smallest unit of measurement in a computer?

Answer 13

Bit

Question 14

What are the two purposes of a transistor?

Answer 14

Amplifying or toggling signals

Question 15

Are capacitors active or passive components?

Answer 15

Passive

Question 16

Are diodes passive or active components?

Answer 16

Active

Question 17

Are inductors passive or active?

Answer 17

Passive

Question 18

Are resistors passive or active?

Answer 18

Passive

Question 19

Are piezoelectric crystals passive or active?

Answer 19

Active

Question 20

Are silicon controlled rectifiers passive or active?

Answer 20

Active

Question 21

Are transistors passive or active?

Answer 21

Active

Question 22

Are transformers passive or active?

Answer 22

Passive

Question 23

What is a passive component?

Answer 23

A component whose function is unaffected by electricity

Question 24

What is an active component?

Answer 24

A component whose function is affected by electricity

Question 25

What is Ohm's law?

Answer 25

Current = Voltage / Resistance

Question 26

What is Coulomb's Law?

Answer 26

F = (K x Q1 x Q2) / d^2

Question 27

What does the F in Coulomb's Law mean, and what unit does it use?

Answer 27

Force (in newtons)

Question 28

What does the k in Coulomb's Law mean?

Answer 28

9 x 10^9

Question 29

What does the Q in Coulomb's Law mean, and what unit does it use?

Answer 29

Charge of a particle (in coulombs)

Question 30

What does the d in Coulomb's Law mean, and what unit does it use?

Answer 30

Distance (in meters)

Question 31

How must you store electronic components and why?

Answer 31

In cool, dry areas to prevent the accumulation of moisture or rust

Question 32

What are the three subatomic particles in order of least to greatest force?

Answer 32

Neutron, Electron, Proton

Question 33

What type of meter can be applied when the electronic equipment is turned on?

Answer 33

Voltmeter

Question 34

What type of meter must always have the electronic equipment turned off?

Answer 34

Ohmmeter

Question 35

What is it called when you add or remove components when the electronic device is turned on?

Answer 35

Hotswapping

Question 36

How many smallest units need to be combined to make a byte?

Answer 36

8

Question 37

How many transistors can be put in the length of a centimeter?

Answer 37

1.43 million

Question 38

What must you use when working with components that are susceptible to static electricity?

Answer 38

Electrostatic Discharge Wrist Strap

Question 39

What are the rows on the periodic table called?

Answer 39

Periods

Question 40

What are the columns on the periodic table called?

Answer 40

Groups

Question 41

How much is a mole?

Answer 41

6.02 x 10^23

Question 42

What is an electrolyte?

Answer 42

A chemical catalyst

Question 43

What is a catalyst?

Answer 43

Something that triggers a reaction

Question 44

What is the most common electrolyte used in batteries and what is its chemical makeup?

Answer 44

Sulfuric Acid H2 S O4

Question 45

What is another name for a variable capacitor?

Answer 45

Condenser

Question 46

What is the most common base material in electronics?

Answer 46

Silicon

Question 47

What is the most common P material in transistors and diodes?

Answer 47

Boron

Question 48

What is the most common N material in transistors and diodes?

Answer 48

Phosphorus

Question 49

How many electrons are in a coulomb?

Answer 49

6.245 x 10^18

Question 50

What is it called when electricity jumps from one wire to another because they are too close together?

Answer 50

Stray Capacitance

Question 51

What is it called when electrons slow down due to impurities in the wire?

Answer 51

Stray Impedance

Question 52

How is the problem of stray inductance solved for high frequencies?

Answer 52

Fiber Optics

Question 53

What are the other two names for a variable resistor?

Answer 53

Rheostat, Potentiometer

Question 54

What are the parts in a substation?

Answer 54

Step-up and step-down transformers Circuit breakers Busbars Lightning arrestors Capacitor banks Relays Switchgears

Question 55

What are the names of the major circuit breaker designs?

Answer 55

Vacuum circuit breaker SF6 circuit breaker Air circuit breaker

Question 56

What are the steps for an SF6 circuit breaker?

Answer 56

Contact Separation Arc Formation Gas Flow Arc Extinction Gas Pressure Reduction

Question 57

What are the steps for an air circuit breaker?

Answer 57

Current Flows Contacts Separate Arc Extinguished

Question 58

What unit(s) is a resistor measured in?

Answer 58

Ohms

Question 59

What unit(s) is a capacitor measured in?

Answer 59

Farads, Ohms

Question 60

What unit(s) is a transistor measured in?

Answer 60

Ohms

Question 61

What unit(s) is a lightbulb measured in?

Answer 61

Watts, Ohms

Question 62

What unit(s) is an inductor measured in?

Answer 62

Henries, Ohms

Question 63

What unit(s) is a transformer measured in?

Answer 63

Amps, Ohms, Volts, Henries

Question 64

What unit(s) is a battery measured in?

Answer 64

Volts, Amps, Joules

Question 65

What is impedance matching?

Answer 65

When capacitance reactance and inductive reactance are equal

Question 66

What is reactance?

Answer 66

Resistance due to frequency

Question 67

Which component is most commonly the variable component in a tuning tank?

Answer 67

Capacitor

Question 68

What two components are used in a simple DC power supply?

Answer 68

Diode and resistor

Question 69

What is the negative side of a diode called?

Answer 69

Cathode

Question 70

What is the positive side of a diode called?

Answer 70

Anode

Question 71

What are the three simple amplifiers?

Answer 71

Common base, common collector, common emitter

Question 72

What is a Zener diode?

Answer 72

A diode that can conduct in both directions past a certain voltage

Question 73

What is the formula for total resistance for resistors in series?

Answer 73

RT=R1+R2+...+Rn

Question 74

What is the formula for total resistance for resistors in parallel?

Answer 74

(1/RT)=(1/R1)+(1/R2)+...+(1/Rn)

Question 75

What is the formula for total inductance for inductors in series?

Answer 75

LT=L1+L2+...+Ln

Question 76

What is the formula for total inductance for inductors in parallel?

Answer 76

(1/LT)=(1/L1)+(1/L2)+...+(1/Ln)

Question 77

What is the formula for total capacitance for capacitors in series?

Answer 77

(1/CT)=(1/C1)+(1/C2)+...+(1/Cn)

Question 78

What is the formula for total capacitance for capacitors in parallel?

Answer 78

CT=C1+C2+...+Cn