TLE (Electrical)

TLE

Specialization in: Electrical Installation & Maintenance

Name: _____________________________ Score: ______________

Directions: Choose the best answer; write your answer in the space provided before the number.

___1. What is meant by an electrochemical cell and battery?

A.  A cell is lots of batteries connected together.
B.  A battery is a number of electrochemical cells attached together.
C.  A cell supplies AC while a battery supplies DC.
D.  A cell has a liquid while a battery has a dry paste.

___2. What is the role of a voltmeter and how is it attached to a circuit?

A. It measures the difference in electrical energy of the charges at one point in the circuit compared to another and is

attached over (parallel) the section it measures.

B. To tell you how much charge has flowed through. It is attached directly in the circuit (series) so it can record the

flow of charge.

C. It measures the difference in electrical energy of the charges at one point in the circuit compared  to another and is attached in the circuit (series) in the section it measures.

D.

___3. What is the role of an ammeter in an electric circuit?

A. To measure the energy the charges have at one place compared to another.

B. To measure the flow of charge through it.

C. To record the energy of charges as they flow through it

___4. The image to the right is of a:

(a) Capacitor 
(b) Diode 
(c) Inductor 
(d) Resistor

___5. The image to the right is of a:

(a) Capacitor 
(b) Diode 
(c) Inductor 
(d) Resistor

___6. The image to the right is of a:

(a) Capacitor 
(b) Diode 
(c) Inductor 
(d) Resistor

___7. The image to the right is of a:

(a) Capacitor 
(b) Diode 
(c) Inductor 
(d) Resistor

___8. The image to the right is of a:

(a) Preset inductor 
(b) Preset resistor 
(c) Variable inductor 
(d) Variable resistor

___9. The image to the right is of a:

(a) Preset inductor 
(b) Preset resistor 
(c) Variable inductor 
(d) Variable resistor

___10. The image to the right is of a:

(a) Preset inductor 
(b) Preset resistor 
(c) Variable inductor 
(d) Variable resistor

___11. The image to the right is of a:

(a) Preset inductor 
(b) Preset resistor 
(c) Variable inductor 
(d) Variable resistor

___12. The image to the right is of a:

(a) Preset potentiometer 
(b) Preset resistor 
(c) Variable potentiometer 
(d) Variable resistor

___13. The image to the right is of a:

(a) Preset potentiometer 
(b) Preset resistor 
(c) Variable potentiometer 
(d) Variable resistor

___14. The image to the right is of a:

(a) Preset potentiometer 
(b) Preset resistor 
(c) Variable potentiometer 
(d) Variable resistor

___15. The image to the right is of a:

(a) Preset potentiometer 
(b) Preset resistor 
(c) Variable potentiometer 
(d) Variable resistor

___16. The image to the right is of a:

(a) Diode 
(b) Light Emitting Diode 
(c) Photosensitive didoe 
(d) Variable capacitance diode

___17. The image to the right is of a:

(a) Diode 
(b) Light Emitting Diode 
(c) Photosensitive didoe 
(d) Variable capacitance diode

___23. How many light bulbs are in the diagram?

A) 4

B) 2

C) 1

D) 3

___24. What kind of circuit is shown above?

A) concave
B) square
C) parallel
D) series

___25. How many batteries are in the diagram?

A) 0
B) 1
C) 3
D) 2

___26. What kind of circuit is shown above?

A) convex
B) rectangle
C) series
D) parallel

___27. The diagram shows a switch that's________.

A) open
B) closed
C) loose
D) broken

___28. The photo shows a symbol of what object?

A) a switch
B) a wire
C) a battery
D) a car

___29. A device able to supply electrical energy is a ________.

A) battery B) nonconductor C) microwave D) conductor

___30. The pathway for electrical current is called a _______.

A) highway B) motor C) circuit D) cloud

___31. When the electrical current CANNOT flow, the circuit is _______.

A) closed B) broken C) open D) loose

___32. The positve (+) and negative (-) ends of the battery are called ______.

A) circuit diagram B) battery knobs C) battery sides D) battery terminals

___33. A circuit that has only one electric flow is _________.

A) battery circuit B) paper circuit C) series circuit D) parallel circuit

___34. The unit that measures a battery's strength is called ________.

A) conductor B) current C) circuit D) volt

___35. A device that opens and closes a circuit is a __________.

A) electrical current B) switch C) volt D) conductor

___36. Objects that allow electrical current to flow are called ______.

A) conductors B) nonconductors C) circuits D) batteries

___37. Objects that DO NOT allow electrical current to flow are called ______.

A) conductors B) batteries C) circuits D) nonconductors

___38. Which parts of the pencil are conductors?

A) The wood and eraser B) The wood and metal  C) The eraser and point   D) The metal and point

___39. Which activity did we compare the brightness of the light bulb?

A) Series and Parallel Circuits B) Solid Conductors C) Simple Circuits D) Paper-Clip Switch

___40. Which activity did we discover what objects are conductors and what objects are nonconductors?

A) Simple Circuits B) Solid Conductors C) Paper-Clip Switch D) Series and Parallel Circuits

___41. How many volts are in the batteries we have used?

A) 3 B) 1.5v C) 1.5 D) 3v

___42. The series circuit with two batteries, gives how much voltage to a light bulb?

A) 1v B) 3v C) 1.5v D) 2v

___43. The equivalent resistance of resistors in parallel can be calculated by __________.

A.   1/R = 1/RA + 1/RB + 1/RC… B.   R = 1/RA + 1/RB + 1/RC…

C.   R = RA + RB + RC… D.   1/R = 1/RA x 1/RB x 1/RC…

___44. Base in the image above; calculate its total resistance?

A. 140 Ω B. 130Ω C. 120 Ω D. 140

___44. Base in the image above; calculate its total resistance?

A. 1.4 Ω B. 1.3 Ω C. 1.2 Ω D. 1.6 Ω

___45.

a) 831Ω b) 1.83KΩ c) 831KΩ d) 151KΩ

___46. a) 624Ω b) 8.87KΩ c) 1.48KΩ d) 4.7KΩ

___47. a) 10.8KΩ b) 3.3KΩ c) 6.63KΩ d) 18.3KΩ

___48. a) 9.5KΩ b) 11KΩ c) 8.67KΩ d) 12KΩ

___49. a) 990Ω b) 271KΩ c) 1.26KΩ d) 2.71KΩ

___50. a) 206Ω b) 216KΩ c) 24.5KΩ d) 206KΩ