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Electronic Devices - Thyristors

Exercise : Thyristors - General Questions
16.
Which of the following devices might best be used to control an electric motor?
an SCS
a PUT
an SCR
a diac
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
What is the correct symbol for an SCR?

a
b
c
d
e
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
You have a light-dimmer circuit using an SCR. In testing the circuit, you find that IG = 0 mA and the light is still on. You conclude that the trouble might be one of the following:
the SCR is open.
the switch is faulty.
the gate circuit is shorted.
this is normal; nothing is wrong.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
How many semiconductor layers are thyristors constructed with?
2
3
4
5
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
Your boss has asked you to recommend a thyristor that will enable you to turn it on with a pulse and also turn it off with a pulse. Which of the following should you recommend?
an SCR
an SCS
a PUT
a triac
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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