Pass Benchmark: 70% (21/30) • Standard: USCG NMC / 46 CFR

USCG Marine Electrical Systems (Set 44)

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Question 1 of 30

If a digital multimeter is set up as shown in figure "A" of the illustration, what would be displayed on the screen if the fuse being tested is blown? EL-0210

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30 MCQs

#1 If a digital multimeter is set up as shown in figure "A" of the illustration, what would be displayed on the screen if the fuse being tested is blown? EL-0210 #2 If a circuit breaker that utilizes built-in, current limiting fuses (CLF's), cannot be closed or reset, what may be the problem? I. A blown current limiting fuse due to a short-circuit condition II. A missing current limiting fuse #3 The ground indicating light on the main electrical switchboard is indicating a ground. What is the best procedure for locating the grounded circuit? #4 Before any work on electrical or electronic equipment is performed, which of the following precautions should be carried out? #5 In the illustration what is the component labeled "C"? EL-0033 #6 Which of the following expresses the relationship of the AC input frequency and DC ripple output frequency in a full wave rectifier? #7 What does section "C" of the circuit shown in the illustration function as? EL-0085 #8 The transistors in figure "B" the illustrated circuit are connected using what type of coupling? EL-0048 #9 In figure "A" of the illustration, the battery Vbb and resistor Rb are in the circuit for what purpose? EL-0022 #10 In figure "A" of the illustrated circuit, the amplifier is connected in what basic configuration? EL-0045 #11 As shown in figure "C" of the illustration, what are the purposes of the coupling capacitor Cc and the bypass capacitor Cbp respectively. EL-0045 #12 As shown in figure "A" of the illustration, what type of converter unit is represented? EL-0240 #13 As shown in figure "B" of the illustrated function block for a PLC PID controller, to what input is the actual analog signal of the measured value delivered? EL-0251 #14 If the clock frequency input to the circuit shown in the illustration were 2 kHz, what would be indicated at the output of 'FF-3' at the Q3 output? EL-0087 #15 What is the name of the digital logic gate represented by figure "1" of the illustration? Illustration EL-0035 #16 On a digital numerical display readout, what would be the minimum number of LED segments required to form and display any digit 0 through 9? #17 As shown in figure "A" of the illustration, what is the configuration of the operational amplifier? EL-0252 #18 In process control terminology, continuously variable values which change without distinct increments, such as temperature, pressure, or level are correctly referred to as what type of values? #19 As shown in figure "B" of the illustrated block diagram of the signal processing flow path, what does the block "TRANSDUCER" represent? EL-0095 #20 As shown in the illustrated block diagram for a distributed automation system, what statement is true concerning the area networks? Illustration EL-0096 #21 As shown in figures "A", "B", and "C" of the illustration, what is the purpose of the differential amplifier segment of the 741 operational amplifier? Illustration EL-0111 #22 As shown in the illustration, which electrical symbol represents a PNP type bipolar junction transistor? EL-0065 #23 As shown in figure "A" of the illustration, what is true concerning the illustrated frequency response curve? EL-0076 #24 Which of the listed conditions describes the effect on intrinsic semiconductor operation as a result of a temperature increase? #25 What does the electronic symbol of figure "9" represent? EL-0065 #26 As shown in figure "A" of the illustration, under what conditions will the thyristor conduct? EL-0154 #27 What is the functional purpose of a heat sink, as frequently used with transistors? #28 What is the third color band on a resistor used to indicate? #29 A saturable-core reactor operates on the principle of controlling a load winding's inductance by changing the permeability of the core. How is this accomplished? #30 What will happen to a carbon resistor operating in electrical equipment that is NOT properly cooled?

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