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BEC Annex 1: Concepts

Total questions: 63

Worksheet time: 1hrs 3mins

Name
Class
Date
1.

What is electrostatic discharge?

a)

A sudden flow of electricity between two charged objects

b)

The release of electricity from a battery

c)

The leakage of fluid from a damaged component

d)

A dance move that involves shuffling your feet on a carpet floor and touching a doorknob

2.

What can cause electrostatic discharge?

a)

Friction

b)

Induction

c)

Separation

d)

Temperature

e)

Light

3.

What are the factors of an electrical shock?

a)

Body resistance

b)

Path through the body

c)

Length of time of shock

d)

Conductivity of materials involved

e)

Current weather conditions outside

4.

What are the effects of an electrical shock with the given current?

a)

1.1 mA

1.

Slight tingling sensation

b)

10.0 mA

2.

120-pound person can't let go

c)

16.0 mA

3.

175-pound person can't let go

d)

18.0 mA

4.

Paralysis of chest muscles

e)

65.0 mA

5.

Irregular contractions of the heart

5.

In order of priority, what should you do when someone is being shocked?

a)

Try to shut off the power source

b)

Kick them off the conductor

c)

Check they are breathing

1)
2)
3)
6.

What is grounding in terms of electricity?

a)

A path for current to flow in the case of a short/open to minimize shock hazard

b)

A punishment that restricts a teenager's actions

c)

Unplugging a circuit to minimize shock hazard

d)

The use of insulation to minimize shock hazard

7.

Choose the options that would maintain a safe workspace

a)

Keep the work area clean and free of clutter

b)

Get permission before starting work

c)

Utilize PPE such as safety goggles, gloves, and insulated footwear

d)

Before working on a circuit, ensure it is not energized

e)

Wear a tinfoil hat to protect against electrical interference

8.

How would you properly use an ESD field mat and wrist strap to protect your equipment from ESD?

a)

Connect the ESD field mat to a grounded outlet and wear the wrist strap and attach it to the mat

b)

Place the ESD field mat on the floor and dance on it while wearing the wrist strap to generate a grounding connection

c)

Connect the wrist strap to the workstation and the ESD field mat to a nearby window to allow static charges to escape

d)

Wrap the wrist strap around the ESD field mat and place them on the workstation to create a static-free zone

9.

How can you verify your workstation is properly grounded?

a)

Use a multimeter to measure the electrical resistance between the workstation's ground point and the main grounding point

b)

Sprinkle water on the workstation and see if it conducts electricity

c)

Check if the workstation is connected to a power source with a visible cable

d)

Place a magnet near the workstation and observe if it is attracted or repelled

10.

What is the purpose of scientific notation or engineering notation?

a)

To express very large or very small numbers in a more compact form

b)

To increase the precision of numbers with extra decimal places

c)

To create a unique numbering system exclusive for scientists and engineers

d)

To impress friends with fancy looking numbers

11.

For a number to be in proper engineering notation, what does the coefficient have to be between?

a)

Greater than or equal to 1 and less than 1000

b)

Greater than or equal to 0 and less than 1000

c)

Greater than or equal to 1 and less than 10

d)

Greater than or equal to 0 and less than 10

e)

There are no requirements for the coefficient

12.

Match the engineering notation characters to their value

a)

k

1.

10^3

b)

m

2.

10^-3

c)

µ

3.

10^-6

d)

M

4.

10^6

e)

G

5.

10^9

13.

Convert the following to proper engineering notation

0.789k golf balls

(a)  

14.

What does Coulomb's Law state?

a)

Particles of opposite charges attract and particles of like charges repel

b)

Current is directly proportional to voltage and inversely proportional to resistance

c)

It governs how electrons flow in a conductor

d)

It defines the official dress code for physicists attending academic conferences

15.

What is voltage?

a)

The electric potential energy between two points on a circuit

b)

The number of electrons in a circuit

c)

The speed at which charge flows through a circuit

d)

The billet for the force that motivates electrons

16.

What does EMF stand for?

a)

Electromotive Force, the electric potential between two points on a circuit

b)

Elastic Metal Framework, a material for use in construction

c)

Electronic Music Festival, a gathering of electronic music enthusiasts

d)

Electromagnetic Frequency, the rate at which electromagnetic waves oscillate

17.

What is current?

a)

The directed flow of electric charge through a circuit

b)

The intensity of an electric field in a circuit

c)

The force experienced by a charged particle in a magnetic field

d)

The rate at which work is done

18.

What is resistance?

a)

The property of a component that opposes a flow of electric charge

b)

The force that repels magnets of the same polarity

c)

The force that prevents electrons from flowing back the way they came from

d)

A secret organization fighting against an oppressive regime

19.

Match each parameter to its unit

a)

Voltage

1.

V

b)

Current

2.

A

c)

Resistance

3.

Ω

d)

Power

4.

W

20.

What should a proper electrical circuit have?

a)

A source of voltage for current to flow

b)

Conductors to provide a path for current to flow

c)

A load component that performs some function when current flows through it

d)

An electrician on standby in case something goes wrong

21.

Label the ground connection symbols

a)Earth
b)Chassis
c)Common
1
2
3
1)
2)
3)
22.

The properties of an open are that:

Current is (a)  

Resistance is​ (b)  

Voltage is (c)  

Choose from the below words
minimum
maximum
23.

The properties of a short are that:

Current is ​ (a)  

Resistance is ​ (b)  

Voltage is ​ (c)  

Choose from the below words
maximum
minimum
24.

What is the resistance based on the color bands? Type the answer in proper engineering notation. You can disregard tolerance.

(a)  

25.

What is Ohm's Law?

a)

Current is directly proportional to voltage and inversely proportional to resistance.

I=ERI=\frac{E}{R}

b)

Current is directly proportional to resistance and inversely proportional to voltage.

I=REI=\frac{R}{E}

c)

Current is directly proportional to resistance and directly proportional to voltage.

I=ERI=ER

d)

A robot may not injure a human being or, through inaction, allow a human being to come to harm.

26.

The equation V=IRV=IR implies voltage is​ (a)   proportional to current and​ (b)   proportional to resistance

Choose from the below words
directly
inversely
27.

The equation I=VRI=\frac{V}{R} implies current is​ (a)   proportional to voltage and​ (b)   proportional to resistance

Choose from the below words
directly
inversely
28.

The equation R=VIR=\frac{V}{I} implies resistance is​ (a)   proportional to voltage and​ (b)   proportional to current

Choose from the below words
directly
inversely
29.

Label each resistor with its type

a)Fixed
b)Variable
1
2
1)
2)
30.

What multimeter is primarily used for our labs?

a)

Fluke 77/BN

b)

Fluke 77/IV

c)

Fluke 117/BN

d)

M240B

31.

READ CAREFULLY!!

When measuring DC voltage, mark the TWO areas where: The switch should be set to, and where the red lead should be connected.

A
B
C
D
E
F
G
H
I
J
32.

When measuring DC current (assume current doesn't exceed 100 mA), mark the TWO areas where the switch should be set to and where the red lead should be connected

A
B
C
D
E
F
G
H
I
J
33.

When measuring resistance, mark the TWO areas where the switch should be set to and where the red lead should be connected to

A
B
C
D
E
F
G
H
I
J
34.

Match each parameter being measured to its ditty

a)

Voltage

1.

Across the component on an energized circuit

b)

Current

2.

Make a break, fill a break on an energized circuit

c)

Resistance

3.

Across the component on a de-energized circuit

35.

What is a voltaic cell?

a)

A cell that generates electrical energy by submerging 2 electrodes into an electrolyte

b)

A specialized dance move performed by electricians in honor of Alessandro Volta

c)

A type of battery that uses solar energy to generate electricity

d)

A device that measures the voltage difference between two points in an electrical circuit

36.

Cells arranged in series-aiding are used to increase​ (a)   .

Cells arranged in series-opposing are used to decrease​ (b)   .

Cells arranged in parallel are used to increase​ (c)   .

Choose from the below words
voltage
current capabilities
resistance
37.

A primary cell, also known as a​ (a)   cell,​ (b)   be recharged.

A secondary cell, also known as a​ (c)   cell,​ (d)   be recharged.

Choose from the below words
dry
cannot
wet
can
38.

What cell is typically found in car batteries and outputs 2V - 2.2V?

a)

Lead-acid

b)

Nickel-cadmium

c)

Alkaline

d)

Lithium

39.

When a switch is open, it resembles a(n)​ (a)   component.

When a switch is closed, it resembles a(n)​ (b)   component.

Choose from the below words
open
shorted
40.

The pole of a switch is...

a)

The conductive arm of a switch

b)

The longest wooden stick used by electricians to reach high voltage equipment

c)

The magnetic north or south end of a switch, responsible for its polarity

d)

A dance pole installed near a switch to entertain electricians during breaks

41.

The throw of a switch is...

a)

The possible positions for each pole

b)

The distance a switch must be thrown away to properly dispose of it

c)

The force required to toggle a switch between its on and off positions

d)

The speed at which electric current flows through a switch when it's turned on

42.

Label each switch.

a)PBNC
b)PBNO
c)SPST
d)SPDT
e)DPST
f)DPDT
1
2
3
4
5
6
1)
2)
3)
4)
5)
6)
43.

What defines a series circuit?

a)

A circuit in which there is only one possible path for current to flow

b)

A circuit that requires a TV series to be playing in the background to function properly

c)

A circuit in which there are more than one possible paths for current to flow

d)

A circuit where electric current can flow only if all the components are connected to a single power source

44.

Kirchhoff's Voltage Law states that...

a)

The sum of voltage rises is equal to the sum of voltage drops

b)

The voltage across a resistor is inversely proportional to the current flowing through it

c)

The voltage across an inductor is directly proportional to the rate of change of current with respect to time

d)

Superconducting zeptojoules of oscillating capacitance coalesce through quasi-isotropic metamaterials synchronously modulating the intergalactic hyperresonance of tridimensional photonic waveforms elucidates the enigmatic correlation between tachyon-dilating chronotrons and the non-Euclidean spacetime curvature of fermionic subspace harmonics

45.

What is the definition of power?

a)

The rate at which work is done or energy is transferred in an electrical circuit

b)

The ability to convert vast amounts of energy drinks and motivational speeches into mission completion

c)

The force required to push an electron through a wire

d)

The force that induces current

46.

What are the formulas for solving power?

a)

P=IEP=IE

b)

P=E2RP=\frac{E^2}{R}

c)

P=I2RP=I^2R

d)

P=sin⁡V3arctan⁡2I⋅ ∫0texp⁡(−R2π log⁡ 2)dtP=\frac{\sqrt[3]{\sin V}}{\arctan^2I}\cdot\ \int_0^t\exp\left(\frac{-R^2}{\pi\ \log\ 2}\right)\text{d}t

47.

The characteristics of a series circuit are that:

Current is​ (a)  

Voltage is​ (b)  

Resistance is​ (c)  

Power is always​ (d)  

Choose from the below words
common
additive
reciprocated
48.

What is a voltage divider?

a)

A circuit with resistors connected in series

b)

A circuit with resistors connected in parallel

c)

A type of power supply that converts high voltage to low voltage

d)

A dance move popularized by electricians

49.

If a resistor shorts in a series circuit, then the total current would...

a)

increase

b)

decrease

c)

stay the same

d)

request mast

50.

What defines a parallel circuit?

a)

Components are connected in a way that multiple paths exists for current to flow through

b)

Components are connected in a way that only one path exists for current to flow through

c)

A circuit where the voltage across each component is inversely proportional to its resistance

d)

A circuit powered exclusively by potato batteries, providing an eco-friendly alternative to traditional power sources

51.

Kirchhoff's Current Law states that...

a)

The sum of currents entering a node must equal the sum of currents leaving the node

b)

The total current in a circuit is directly proportional to the square of the voltage

c)

The sum of voltage gains equals to the sum of voltage drops

d)

The previous law was too lenient and now formations are to be held every 2 hours

52.

The characteristics of a parallel circuit are that:

Current is​ (a)  

Voltage is​ (b)  

Resistance is​ (c)  

Power is​ always (d)  

Choose from the below words
additive
common
reciprocated
53.

If a resistor connected in parallel opens, the current passing through the other resistors would...

a)

stay the same

b)

increase

c)

decrease

d)

file negative counseling

54.

Sort the answers by the process in solving a series-parallel circuit

a)

Calculate REQ and redraw the circuit

b)

Calculate total current

c)

Calculate series voltage drops

d)

Calculate parallel currents

e)

Solve for power

1)
2)
3)
4)
5)
55.

What is a loaded voltage divider?

a)

A series circuit where a load has been added in parallel to one of the resistors

b)

A parallel circuit where a load has been added in parallel to one of the resistors

c)

A voltage divider that uses a capacitor to store excess voltage for future use

d)

A voltage divider equipped with an M240B, M320, and M67s

56.

When a load is added to a voltage divider, what happens to the output voltage?

a)

Decreases due to a decrease in resistance to REQ

b)

Increases due to an increase in resistance to REQ

c)

Stays the same

d)

Files a 6105

57.

What is the purpose of the 10:1 loading rule?

a)

To minimize voltage loss by having the resistive load be 10 times greater than the output resistance of the source

b)

To increase the current flow through the resistive load by a factor of 10

c)

To ensure the resistive load is exactly 10 times lighter than the total circuit resistance

d)

To minimize the number of trips by lifting only items whose weight sums to be 10 times heavier than you

58.

Potentiometers and rheostats are examples of...

a)

variable resistors

b)

fixed resistors

c)

static resistors

d)

abstract resistors

59.

When a potentiometer or resistor is rotated clockwise, which way does the arrow move?

a)

Towards the positional reference

b)

Away from the positional reference

c)

It would always move towards the right

d)

The arrow would also rotate clockwise

60.

The difference between a potentiometer and a rheostat is that rheostats are connected in​ (a)   and potentiometers are connected in​ (b)  

Choose from the below words
series
parallel
61.

The primary difference between potentiometers and rheostats is that...

a)

potentiometers are for voltage control and rheostats are for current control

b)

rheostats always require more energy than potentiometers

c)

potentiometers are edible while rheostats are suitable only for cooking

d)

rheostats are a type of battery while parameters are a type of capacitor

62.

With a rheostat fully in the CCW position, the total resistance is at a​ (a)   , the total current is at a​ (b)   , and the output voltage is at a​ (c)  

Choose from the below words
minimum
maximum
63.

If a potentiometer is rotated counterclockwise, the equivalent resistance is at (a)   , the voltage across the load is at​ (b)   , and the current across the load is at​ (c)  

Choose from the below words
minimum
maximum

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