11. How many terminals does a Shockley diode have?
(a) 5
(b) 4
(c) 3
(d) 2
12. This symbol is an example of a(n) ________.
(a) SCR
(b) SCS
(c) GTO
(d) DIAC
13. How many terminals does a programmable unijunction transistor (PUT) have?
(a) 4
(b) 3
(c) 2
(d) 1
14. The two-layer semiconductor diode has led to ________layer devices.
(a) three-
(b) four-
(c) five-
(d) All of the above
15. SCRs have been designed to control powers as high as ________, with individual ratings as high as ________ at ________.
(a) 1800 MW, 10 A, 2000 V
(b) 1800 MW, 2000 A, 10 V
(c) 10 MW, 2000 A, 1800 V
(d) 2000 MW, 10 A, 1800 V
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