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Penn Foster exam number 00680202
10. Which of the following statements about choosing fuses is correct?
A. When choosing the correct fuse for an application, the standard current rating of the fuse isnt considered.
B. When choosing the correct fuse for an application, its not important whether the fuse has a renewable element or not.
C. When choosing the correct fuse for an application, the ampacity of the fuse is unimportant.
D. When choosing the correct fuse for an application, the voltage level that the fuse will be controlling isnt considered.
11. Suppose that you need to determine the box size you need for a particular job. To do this, youll need to count the number of wires that the box will contain. Which of the following statements about counting wires is not correct?
A. Count each bare ground wire as one.
B. Dont count a wire when the entire piece of wire is in the box.
C. Count any circuit conductor that ends in the box as one.
D. Dont count wires that are run from a fixture to the box.
12. An outside light is controlled from three locations in a residence. Theres a three-way switch in the basement, a four-way switch in the kitchen, and a three-way switch in the garage. Which of the following combinations will allow the outside light to be wired and switched from the bedroom as well?
A. Replace the basement switch with a four-way and install a four-way switch in the bedroom.
B. Replace the garage and basement switches with four-way switches and install a four-way switch in the bedroom.
C. Install a three-way switch in the bedroom.
D. Install a four-way switch in the bedroom.
13. Figure A-3 shows two pith balls suspended by threads from a support. Which of the following statements about this figure is correct?
A. Both of the pith balls are uncharged, so they hang straight down.
B. Pith Ball 1 is positively charged, and Pith Ball 2 is negatively charged.
C. Both of the pith balls have a positive charge, so they hang straight down.
D. Pith Ball 1 is negatively charged, and Pith Ball 2 is positively charged.
FIGURE A-3—Use this illustration to answer Question 13.
14. Two electrical students are discussing static electricity. Student A says that a basic property of static electricity is the fact that it cant be detected. Student B says that an electric current results when electrons move in a conductor. Which of the following statements is correct?
A. Only Student A is correct.
B. Only Student B is correct.
C. Both Student A and Student B are correct.
D. Neither of the two students is correct.
15. Figure A-4 shows two pith balls suspended by threads from a support. Which of the following statements about the figure is correct?
A. Both of the pith balls are uncharged.
B. Pith Ball 1 is positively charged, and Pith Ball 2 is negatively charged.
C. Both of the pith balls have the same charge.
D. Pith Ball 1 is negatively charged, and Pith Ball 2 is positively charged.
FIGURE A-4—Use this illustration to answer Question 15.
16. Two electricians are discussing the electric series. Electrician A says that if you rub a piece of glass with a piece of wool cloth, the glass will receive a negative charge. Electrician B says that if you rub a piece of aluminum with a piece of flannel, the aluminum will receive a negative charge. Which of the following statements is correct?
A. Only Electrician A is correct.
B. Only Electrician B is correct.
C. Both Electrician A and Electrician B are correct.
D. Neither of the two electricians is correct.
17. Look at the resistor thats illustrated in Figure A-5. Based on your knowledge of the resistor color code, what is the resistance value and the tolerance of this resistor?
A. Resistance 1.5 kΩ, tolerance 10 percent
B. Resistance 2.7 kΩ, tolerance 5 percent
C. Resistance 30 kΩ, tolerance 20 percent
D. Resistance 525 kΩ, tolerance 5 percent
FIGURE A-5—Use this illustration to answer Question 17.
18. Two electrical students are discussing electrical units. Student A says that electrical power is measured in units called coulombs. Student B says that the abbreviation 400 kΩ stands for 400,000 volts. Which of the following statements is correct?
A. Only Student A is correct.
B. Only Student B is correct.
C. Both Student A and Student B are correct.
D. Neither of the two students is correct.
19. You need to calculate the electrical power, in megawatts, consumed by a heater that contains only resistors, no capacitors or inductors. You know that the heater is powered by a 220-volt circuit and requires an input of 22 amps. The power, in megawatts, consumed by the heater is
A. 0.00484.
B. 0.0100.
C. 4.84.
D. 10.0.
20. Which of the following statements about diagrams is correct?
A. Control drawings contain only symbols of control devices.
B. Short circuits occur on a ladder diagram when at least two rungs carry no load.
C. Control diagrams and ladder drawings are basically the same.
D. Each section of a switch must appear on the same line of a ladder diagram.
21. Which of the following is a device thats used to protect circuits from short circuits or overloads?
A. An ampacity
B. A parameter
C. A circuit breaker
D. A switch
22. When installing receptacles in a new home, which of the following steps would be incorrect?
A. Placing a receptacle over a 15-inch section of counter space in the kitchen
B. Counting the sliding doors as wall space
C. Securing a GFCI receptacle next to the bathroom mirror
D. Installing a receptacle every 14 feet throughout the home
23. Look at the symbol that's shown in Figure A-6. In this figure, the symbols represent a
A. three-pole circuit breaker with a thermal overload device in all three poles.
B. three-pole circuit breaker with a magnetic overload device in all three poles.
C. three-pole circuit breaker of the draw-out type.
D. three-pole circuit breaker with a magnetic overload device in one pole.
FIGURE A-6—Use this illustration to answer Question 23.
24. Which of the following is a correct description of what happens when a lamp is turned on by a wall switch?
A. The circuit is closed, causing the filament to heat up.
B. The circuit is opened, causing the filament to heat up.
C. Current flows from the lamp to the switch, which consumes half as much electrical power as the lamp.
D. The circuit is opened, causing the lamp to come on.
25. If you touch a fuse and it feels warm, this means that
A. the fuse has blown.
B. the fuse was recently replaced.
C. the fuse was installed incorrectly.
D. the fuse is probably being used within its rating.
