Test Answers 3
Lesson 11 – Question 1
Sorry, but that is incorrect.
Lesson 11 – Question 1
Good job! For a Diode to conduct, the anode must be more positive than the cathode. Actually, the anode must be more positive than the cathode by at least the amount of the voltage drop across the diode, usually about 0.7 volts for silicon and about 0.25 to 0.3 volts for germanium.
Lesson 11 – Question 2
Good Job! Most regular diodes manufactured today are made of silicon
Lesson 11 – Question 2
Sorry, but that is incorrect.
Lesson 11 – Question 2
Sorry, but that is incorrect.
Lesson 11 – Question 3
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Lesson 11 – Question 3
Good Job! A diode that acts like a normal diode until the voltage gets above a certain amount is called a Zener Diode
Lesson 11 – Question 3
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Lesson 12 – Question 1
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Lesson 12 – Question 1
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Lesson 12 – Question 1
Good job! The long lead is the anode and is the positive lead.
Lesson 12 – Question 2
Good Job! It could possibly make the battery last a little longer and it wouldn’t be that much dimmer.
Lesson 12 – Question 2
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Lesson 12 – Question 2
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Lesson 12 – Question 3
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Lesson 12 – Question 3
Good Job! With the right controller, you could make almost any color.
Lesson 12 – Question 3
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Lesson 13 – Question 1
Sorry, but that is incorrect.
Lesson 13 – Question 1
Good job! A PNP and an NPN transistor are opposites of each other in polarity.
Lesson 13 – Question 2
Good Job! In a Bilpolar Junction Transistor, wired in a Common Emitter Configuration, the Emitter Current is equal to the Collector Current plus the smaller Base Current.
Lesson 13 – Question 2
Sorry, but that is only half true. Please try again.
Lesson 13 – Question 2
Sorry, That is only partially true. Please try again.
Lesson 13 – Question 3
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Lesson 13 – Question 3
Good Job! Transistors that draw more current may need to have a Heat Sink Installed. The fins on the Heat Sink help dissipate the heat, protecting the transistor.
Lesson 13 – Question 3
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Lesson 14 – Question 1
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Lesson 14 – Question 1
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Lesson 14 – Question 1
Good job! They are passive components.
Lesson 14 – Question 2
Good Job! An IC weighs much less than if it were made up of discrete components.
Lesson 14 – Question 2
Sorry, but that is incorrect. They cost much more to design them, but much less to manufacture them once the design phase is finished.
Lesson 14 – Question 2
Sorry, They use much less power.
Lesson 14 – Question 3
Sorry, All DIP packages have two rows of pins. They can have any even number from 4 up. DIP means Dual in line package, the Dual part meaning two rows of pins.
Lesson 14 – Question 3
Good Job! Dual in line package means two rows of pins in a straight line.
Lesson 14 – Question 3
Sorry, They can’t have an odd number since there are two rows of pins in a Dual in line package. Please try again.
Lesson 15 – Question 1
Sorry, but that is incorrect. In some cases that might be true. A 1 to 1 transformer would be an isolation transformer used just to isolate the primary circuit from the secondary circuit while not changing the voltage or current. They are used a lot in telephone circuitry. Please try again.
Lesson 15 – Question 1
Good job! For stepping up or down, different windings are used.
Lesson 15 – Question 2
Good Job! Transformers work by changing current in one winding which induces changes in the other winding and therefore Alternating Current, or at least pulsed DC is needed.
Lesson 15 – Question 2
Sorry, but that is incorrect. Transformers work by changing current in one winding which induces changes in the other winding and therefore Alternating Current, or at least pulsed DC is needed. Please try again.
Lesson 15 – Question 2
Sorry, but that is incorrect. Transformers work by changing current in one winding which induces changes in the other winding and therefore Alternating Current, or at least pulsed DC is needed. Please try again.
Lesson 15 – Question 3
Sorry, incorrect.
Lesson 15 – Question 3
Good Job! Iron core transformers are used for lower frequencies.
Lesson 15 – Question 3
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