Question 203Electricity & Electronics - 1st Asst/Chief

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As shown in the illustration, which electrical symbol represents a PNP type bipolar junction transistor? Illustration EL-0065

Diagram for USCG Electrical Chief: As shown in the illustration, which electrical symbol represents a PNP type...
A1
B2
C3
D4
AI Explanation

The correct answer is A) 1, which represents a PNP type bipolar junction transistor. The illustration EL-0065 shows the standard electrical symbols for various electronic components, and the symbol labeled 1 is the correct representation of a PNP bipolar junction transistor. This is in accordance with the standard electrical schematic conventions used in the US Coast Guard Captain's License Examinations. The other options, B) 2, C) 3, and D) 4, represent different electronic components such as an NPN transistor, a diode, and a resistor, respectively, and are not the correct symbol for a PNP bipolar junction transistor.

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Official Resources
46 CFR Electrical Engineering 46 CFR Machinery & Electrical USCG National Maritime Center
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