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introduction to electronics

Resolved Question:

1. When electric current is flowing in a circuit, if the voltage applied to the circuit is increased,
A. the resistance will increase. C. the resistance will decrease.
B. the current will increase. D. the current will decrease.
2. Which of the following information sources will not be directly affected by the Telecommunications Act
of 1996?
A. Telephone services C. Newspaper publishing
B. The Internet D. Cable television
3. Porcelain, paper, glass, and rubber are all examples of electrical
A. conductors. C. insulators.
B. batteries. D. grounds.
4. A testing instrument that an electronics technician will connect to selected points inside a piece of
electronic equipment and measure electrical values such as ohms, volts, and amperes is called
A. a signal generator. C. an oscilloscope.
B. a power supply. D. a multimeter.
5. Look at the four schematic symbols shown in Figure A-1. Each of the symbols is labeled with a
number. Which of the following statements about these symbols is correct?
A. Symbol 1 represents a diode, symbol 2 represents a resistor, symbol 3 represents an LED, and
symbol 4 represents a transistor.
B. Symbol 1 represents a diode, symbol 2 represents an LED, symbol 3 represents a transistor, and
symbol 4 represents a resistor.
C. Symbol 1 represents a transistor, symbol 2 represents a resistor, symbol 3 represents an LED,
and symbol 4 represents a diode.
D. Symbol 1 represents a transistor, symbol 2 represents a diode, symbol 3 represents a resistor,
and symbol 4 represents an LED.
6. Which of the following is a correct definition of the term rectification?
A. Rectification is the opposition to current flow in a circuit.
B. Rectification involves sensing an electrical quantity and converting it to a signal.
C. Rectification is the conversion of AC current to DC current.
D. Rectification refers to the connection of components into a circuit.
7. Look at the simple circuit illustrated in Figure A-2. What will happen when only switch S1 is closed?
A. The light bulb will light up.
B. Current will flow in the circuit.
C. The resistance of the circuit will increase.
D. Nothing will happen—the light bulb won’t light up.
8. In the circuit shown in Figure A-2, what will happen when switches S1 and S3 are both closed?
A. The light bulb will light up.
B. Current will flow in the circuit.
C. The resistance of the circuit will increase.
D. Nothing will happen—the light bulb won’t light up.
54 Examination
(1) (2) (3) (4)
FIGURE A-1—Use this illustration
to answer Question 5.
+
S1
S2 S3
FIGURE A-2—Use this illustration
to answer Questions
7–10.
9. In the circuit shown in Figure A-2, what will happen when switches S2 and S3 are both closed?
A. The light bulb will light up.
B. Current will flow in the circuit.
C. The resistance of the circuit will increase.
D. Nothing will happen—the light bulb won’t light up.
10. In the circuit shown in Figure A-2, which switches must be closed in order for the light bulb to light up?
A. Only switch S1 needs to be closed in order for the light bulb to light up.
B. Only switches S1 and S2 need to be closed in order for the light bulb to light up.
C. Only switches S1 and S3 need to be closed in order for the light bulb to light up.
D. Only switches S2 and S3 need to be closed in order for the light bulb to light up.
11. At a job interview, the most effective way to prove your proficiency to a prospective employer is to
show that you have
A. membership in several professional organizations.
B. certification as an electronics technician.
C. experience with on-line research.
D. your own test equipment.
12. Which one of the following letters is used as an abbreviation when representing a unit of electric current?
A. E C. C
B. R D. A
13. Safety is a concern around electronic equipment of all types. When you see the sign and the symbol
shown in Figure A-3, what particular safety hazard may exist?
A. High voltage C. Delicate equipment
B. Laser light D. Radioactivity
14. Which of the following statements about light-emitting diodes is correct?
A. Light-emitting diodes conduct current in either direction in circuits.
B. Light-emitting diodes are used as indicators in circuits.
C. Light-emitting diodes have very short life-spans in circuits.
D. Light-emitting diodes are used as rectifiers in circuits.
Examination 55
FIGURE A-3—Use this illustration
to answer Question 13.
15. On a printed circuit board, electronic components will be mounted
A. from the substrate side of the board.
B. from the side of the board that contains the conducting paths.
C. from the foil side of the board.
D. from the side of the board that’s covered with copper sheeting.
16. Which of the following statements about the measurement of electrical quantities is correct?
A. Resistance is measured in units called ohms.
B. Voltage is measured in units called amperes.
C. Electrical pressure is measured in units called watts.
D. Current is measured in units called volts.
17. You’re working at a large industrial plant and notice a tag similar to the one shown in Figure A-4.
Which of the following actions should you take?
A. Operate this switch only after normal working hours.
B. Operate this switch only after getting permission from the person who signed the tag.
C. Operate this switch only after making certain no one is working on the affected circuit.
D. Operate this switch only if more than 24 hours have elapsed since the tag was signed.
18. A testing instrument that’s used to measure electrical signals in a circuit and display them as waveforms
on a screen is called
A. a multimeter. C. an oscilloscope.
B. a signal generator. D. a power supply.
19. Which of the following is the first step in a lockout-and-tag procedure?
A. Try to start the machine.
B. Place your lock on the breaker or switch.
C. Sign your tag and place it on the lock.
D. Shut off the electricity to the machine at the breaker.
56 Examination
FIGURE A-4—Use this illustration
to answer Question 17.
20. An electronics technician who enjoys working “at the bench” would most likely want to work
A. for a manufacturer. C. for a TV or radio station.
B. as a central office technician. D. as a microwave technician.
Submitted: 11 years ago.
Category: Homework
Expert:  Ryan replied 11 years ago.

As always, an honor to be requested. I'm afraid I don't have these answers though, so I will bow out and see if another expert can help you with this one.


Regards,


Ryan

Customer: replied 11 years ago.
Reply to Ryan's Post: Ok Thank You.
Expert:  Coolchics replied 11 years ago.
can you post the test # & name of test
Customer: replied 11 years ago.
Reply to Tessie's Post: The test Number?
Expert:  Coolchics replied 11 years ago.
are these exams from Penn Foster? if so Each exam has its own exam number.
Customer: replied 11 years ago.
Reply to Tessie's Post: Exam # XXXXX
Expert:  Coolchics replied 11 years ago.
is it an elective?
Customer: replied 11 years ago.
Reply to Tessie's Post: yes, i thought i could do it, but it is a little more then i know.
Expert:  Coolchics replied 11 years ago.
what is the name of the elective? ( I have several Penn Foster exams)
Customer: replied 11 years ago.
Reply to Tessie's Post: BASIC ELECTRONICS
Expert:  Coolchics replied 11 years ago.
I will look through my books, but if another expert can help you in the mean time, so be it!
Customer: replied 11 years ago.
Reply to Tessie's Post: ok thank you
Expert:  prabhjyot replied 11 years ago.

1. When electric current is flowing in a circuit, if the voltage applied to the circuit is increased,
A. the resistance will increase. C. the resistance will decrease.
B
. the current will increase. D. the current will decrease.

2. Which of the following information sources will not be directly affected by the Telecommunications Actof 1996?
A. Telephone services C
. Newspaper publishing
B. The Internet D. Cable television


3. Porcelain, paper, glass, and rubber are all examples of electrical
A. conductors. C
. insulators.
B. batteries. D. grounds.


4. A testing instrument that an electronics technician will connect to selected points inside a piece of electronic equipment and measure electrical values such as ohms, volts, and amperes is called
A. a signal generator. C. an oscilloscope.
B. a power supply. D
. a multimeter.


5. Look at the four schematic symbols shown in Figure A-1. Each of the symbols is labeled with a number. Which of the following statements about these symbols is correct?
A. Symbol 1 represents a diode, symbol 2 represents a resistor, symbol 3 represents an LED, and
symbol 4 represents a transistor.
B. Symbol 1 represents a diode, symbol 2 represents an LED, symbol 3 represents a transistor, and
symbol 4 represents a resistor.
C. Symbol 1 represents a transistor, symbol 2 represents a resistor, symbol 3 represents an LED,
and symbol 4 represents a diode.
D. Symbol 1 represents a transistor, symbol 2 represents a diode, symbol 3 represents a resistor,
and symbol 4 represents an LED.


6. Which of the following is a correct definition of the term rectification?
A. Rectification is the opposition to current flow in a circuit.
B. Rectification involves sensing an electrical quantity and converting it to a signal.
C.
Rectification is the conversion of AC current to DC current.
D. Rectification refers to the connection of components into a circuit.


7. Look at the simple circuit illustrated in Figure A-2. What will happen when only switch S1 is closed?
A. The light bulb will light up.
B. Current will flow in the circuit.
C. The resistance of the circuit will increase.
D. Nothing will happen—the light bulb won’t light up.


8. In the circuit shown in Figure A-2, what will happen when switches S1 and S3 are both closed?
A. The light bulb will light up.
B. Current will flow in the circuit.
C. The resistance of the circuit will increase.
D. Nothing will happen—the light bulb won’t light up.
54 Examination
(1) (2) (3) (4)
FIGURE A-1—Use this illustration
to answer Question 5.
+
S1
S2 S3
FIGURE A-2—Use this illustration
to answer Questions
7–10.


9. In the circuit shown in Figure A-2, what will happen when switches S2 and S3 are both closed?
A. The light bulb will light up.
B. Current will flow in the circuit.
C. The resistance of the circuit will increase.
D. Nothing will happen—the light bulb won’t light up.

10. In the circuit shown in Figure A-2, which switches must be closed in order for the light bulb to light up?
A. Only switch S1 needs to be closed in order for the light bulb to light up.
B. Only switches S1 and S2 need to be closed in order for the light bulb to light up.
C. Only switches S1 and S3 need to be closed in order for the light bulb to light up.
D. Only switches S2 and S3 need to be closed in order for the light bulb to light up.

11. At a job interview, the most effective way to prove your proficiency to a prospective employer is to show that you have
A. membership in several professional organizations.
B.
certification as an electronics technician.
C. experience with on-line research.
D. your own test equipment.

12. Which one of the following letters is used as an abbreviation when representing a unit of electric current?
A. E C. C
B. R
D. A


13. Safety is a concern around electronic equipment of all types. When you see the sign and the symbol
shown in Figure A-3, what particular safety hazard may exist?
A. High voltage C. Delicate equipment
B. Laser light D. Radioactivity

14. Which of the following statements about light-emitting diodes is correct?
A. Light-emitting diodes conduct current in either direction in circuits.
B
. Light-emitting diodes are used as indicators in circuits.
C. Light-emitting diodes have very short life-spans in circuits.
D. Light-emitting diodes are used as rectifiers in circuits.

Examination 55
FIGURE A-3—Use this illustration
to answer Question 13.
15. On a printed circuit board, electronic components will be mounted
A.
from the substrate side of the board.
B. from the side of the board that contains the conducting paths.
C. from the foil side of the board.
D. from the side of the board that’s covered with copper sheeting.


16. Which of the following statements about the measurement of electrical quantities is correct?
A
. Resistance is measured in units called ohms.
B. Voltage is measured in units called amperes.
C. Electrical pressure is measured in units called watts.
D. Current is measured in units called volts.


17. You’re working at a large industrial plant and notice a tag similar to the one shown in Figure A-4.
Which of the following actions should you take?
A. Operate this switch only after normal working hours.
B. Operate this switch only after getting permission from the person who signed the tag.
C. Operate this switch only after making certain no one is working on the affected circuit.
D. Operate this switch only if more than 24 hours have elapsed since the tag was signed.

18. A testing instrument that’s used to measure electrical signals in a circuit and display them as waveforms
on a screen is called
A. a multimeter.
C. an oscilloscope.
B. a signal generator. D. a power supply.

19. Which of the following is the first step in a lockout-and-tag procedure?
A. Try to start the machine.
B.
Place your lock on the breaker or switch.
C. Sign your tag and place it on the lock.
D.
Shut off the electricity to the machine at the breaker.
56 Examination
FIGURE A-4—Use this illustration
to answer Question 17.
20. An electronics technician who enjoys working “at the benchâ€
 would most likely want to work
A.
for a manufacturer. C. for a TV or radio station.
B. as a central office technician. D. as a microwave technician


===================================
For question numbers 5,8,9,10, 17 please include the diagram. rest of the answers i am posting here please send the diagram for the above questions


thankyou


































































































































prabhjyot, Tutor
Category: Homework
Satisfied Customers: 319
Experience: bachelor of engineering (computer sciences)
prabhjyot and 3 other Homework Specialists are ready to help you
Customer: replied 11 years ago.
Reply to prabhjyot's Post: i e-mailed you the test. i hope that is ok.
Expert:  prabhjyot replied 11 years ago.
THIS ANSWER IS LOCKED!

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prabhjyot, Tutor
Category: Homework
Satisfied Customers: 319
Experience: bachelor of engineering (computer sciences)
prabhjyot and 3 other Homework Specialists are ready to help you