Pass Benchmark: 70% (21/30) • Standard: USCG NMC / 46 CFR
USCG Marine Electrical Systems (Set 31)
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Question 1 of 30
What is the name for the device shown in figure "A" of the illustration? Illustration EL-0064
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30 MCQs #1 What is the name for the device shown in figure "A" of the illustration? Illustration EL-0064 #2 An voltage amplifier has a calculated voltage gain of 5. Which statement is true concerning input and output voltages? #3 How are operational amplifiers, used primarily in analog circuits, characterized? #4 In referring to figure "E" of the illustration, what statement is true concerning the functional purpose of the coupling transformer? EL-0075
Illustration EL-0075: the U.S. Coast Guard has not released this illustration. #5 In referring to figure "F" of the illustration, what statement is true concerning the functional purpose of the RC coupling? EL-0075
Illustration EL-0075: the U.S. Coast Guard has not released this illustration. #6 In referring to the graphs shown in the illustration, which of the following figures represents a band pass filter? EL-0076 #7 In referring to figure "A" of the illustration, what type of active filter circuit is shown? EL-0077 #8 In referring to the frequency response filters shown in the illustration, what determines the band pass or band stop frequencies as appropriate? EL-0078
Illustration EL-0078: the U.S. Coast Guard has not released this illustration. #9 As shown in the illustrated block diagram for a programmable logic controller system, in what functional component is the program developed and used to transfer the program to the memory unit of the PLC? EL-0225 #10 As shown in figure "A" of the illustrated PLC sub-circuit, what type of circuit is depicted? EL-0230 #11 As shown in figure "C" of the illustration, what type of timer is represented? EL-0242
Illustration EL-0242: the U.S. Coast Guard has not released this illustration. #12 As shown in figure "A" of the illustration, what input conditions are required to produce an output? EL-0241 #13 As shown in all four diagrams included in the illustration, what type of logic circuit is represented? EL-0233 #14 As shown in all four diagrams included in the illustration, what type of logic circuit is represented? EL-0227 #15 As shown in all four diagrams included in the illustration, what type of logic circuit is represented? EL-0226 #16 As shown in all four diagrams included in the illustration, what type of logic circuit is represented? EL-0234 #17 As shown in all four diagrams included in the illustration, what type of logic circuit is represented? EL-0231 #18 Referring to figure "1" of the illustration, what type of logic gate is symbolized? EL-0035 #19 Referring to figure "2" of the illustration, what type of logic gate is symbolized? EL-0035 #20 Referring to figure "3" of the illustration, what type of logic gate is symbolized? EL-0035 #21 Referring to figure "4" of the illustration, what type of logic gate is symbolized? EL-0035 #22 Referring to figure "5" of the illustration, what type of logic gate is symbolized? EL-0035 #23 Which of the following is a disadvantage of electric drive propulsion systems? #24 Which statement is TRUE concerning electric propulsion drives? #25 An electric propulsion drive system in which the propulsion generator supplies power to both the propulsion motor and ship service loads is referred to as what type of system? #26 What is one major advantage of a diesel electric propulsion plant? #27 Ships requiring rapid maneuvering response with a high degree of main propeller shaft control are most often what type of drive system? #28 Which of the listed temperature measuring devices installed on a large turbo-electric alternating current propulsion generator would be the most reliable for monitoring generator temperatures to avoid premature winding insulation failure? #29 What is the operating function of a cycloconverter (CCV) as a static power converter used in electric propulsion motor drives? #30 What type of electric propulsion system converter is shown in the illustration? EL-0155
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