Question 355Electricity & Electronics - Assistant Engineer
70% to passAs shown in figure "A" of the illustration, what input conditions are required to produce an output? Illustration EL-0241
AEither "Input 1" or "Input 2" must be closed AND either "Input 3" or "Input 4" must be closed.
BEither "Input 1" or "Input 2" must be closed OR both "Input 3" and "Input 4" must be closed.
CBoth "Input 1" and "Input 2" must be closed AND either "Input 3" or "Input 4" must be closed.
DBoth "Input 1" and "Input 2" must be closed OR both "Input 3" and "Input 4" must be closed.
AI Explanation
The correct answer is B) Either "Input 1" or "Input 2" must be closed OR both "Input 3" and "Input 4" must be closed. This is the correct answer because the logic gate shown in the illustration is an OR gate. For an OR gate, the output will be produced if either one or more of the inputs are closed (active). So, either "Input 1" or "Input 2" can be closed to produce the output, or both "Input 3" and "Input 4" must be closed to produce the output. The other answer choices are incorrect because they describe different logic gate configurations that do not match the OR gate shown in the illustration.
Related Questions
Q@q.QuestionNumber:You are in the planning stages of making up a portable cable to be used for tran... Q@q.QuestionNumber:What happens to the life expectancy of insulation for each 10oC rise in operatin... Q@q.QuestionNumber:For the purposes of generating a DC voltage, which of the following factors is s... Q@q.QuestionNumber:Upon loss of field excitation of a generator operating in parallel with others, ... Q@q.QuestionNumber:Which of the following contactors or relays has a timing function for the transi...
Ready to test your knowledge?
Take a Electricity & Electronics - Assistant Engineer Practice ExamOfficial Resources
Want to practice with timed exams?
Download Coast Guard Exams for the full exam experience.
Get the App