Description : Section II of the circuit shown in the illustration is the ____________. EL-0085 A. voltage regulator B. filter C. rectifier D. voltage transformer
Last Answer : Answer: C
Description : In which section of the 24 VDC power supply circuit illustrated, does the greatest change in voltage level take place when fed from ships power. EL-0085 A. I B. II C. III D. IV
Last Answer : Answer: A
Description : The illustrated device is a _______. EL-0064 A. full wave bridge rectifier B. half wave bridge rectifier C. solid state voltage regulator D. direct current (DC) filter
Description : The correct term for the illustrated circuit is a ________. EL-0063 A. single phase half wave high power rectifier B. three phase half wave rectifier C. three phase full wave rectifier D. a single phase full wave rectifier
Description : Section IV of the circuit shown in the illustration is the _____________. EL-0085 A. voltage regulator B. filter C. rectifier D. voltage transformer
Description : Section III of the circuit shown in the illustration is a _____________. EL-0085 A. voltage regulator B. filter C. rectifier D. voltage transformer
Last Answer : Answer: B
Description : Which section of the circuit is responsible for maintaining a nearly constant voltage for all loads within its operating range? EL-0085 A. I B. II C. III D. IV
Last Answer : Answer: D
Description : Which section of the circuit shown in the illustration changes AC to DC? EL-0085 A. I B. II C. III D. IV
Description : Which section of the circuit shown in the illustration smooths out highest degree of pulsations? EL-0085 A. I B. II C. III D. IV
Description : The fluctuation of voltages in figure 'A' and 'D' of the circuit shown in the illustration is called ____________. EL-0085 A. wave B. ripple C. roll D. swell
Description : If the electricity represented by the wave form in 'B' were applied to the left side of the illustrated circuit, the output on the right side would be ____________. EL-0064 A. direct current with the ... lower lead D. clipped to a value equal to the square root of 3 times the input voltage value
Description : Which of the following statements is true regarding the illustrated circuit? El-0069 A. This full wave bridge should never be used aboard ship because the ground on lead 'A' will show on ... be direct current suitable for electronic circuits requiring voltage regulation. D. All the above are true.
Description : Which of the referenced waveshapes would appear at point 'Y' in the circuit shown in the illustration? EL-0085 A. A B. B C. C D. D
Description : Which of the referenced waveshapes would appear at point 'Z' in the circuit shown in the illustration? EL-0085 A. A B. B C. C D. D
Description : What is the direction of current through the load resistor in the circuit shown in the illustration? EL-0085 A. Always from point 'Z' to the grounded end. B. Always from the grounded end to ... on the instantaneous polarity at point 'W'. D. It cannot be determined without a directional ammeter.
Description : Which of the referenced waveshapes would appear at point 'X' of the circuit shown in the illustration? EL-0085 A. A B. B C. C D. D
Description : Assuming a standard 60 Hz. input to the circuit shown in the illustration, the ripple frequency would be ____________. EL-0085 A. 30 Hz B. 60 Hz C. 90 Hz D. 120 Hz
Description : The component labeled 'CR1' in the circuit shown in the illustration __________________. EL-0085 A. varies its anode/cathode polarity depending on 'RL' current B. rectifies the varying voltage from the ... reactance to smooth ripple D. establishes a constant reference voltage for the base of 'Q1'
Description : Which of the referenced waveshapes would appear at point 'W' in the circuit shown in the illustration? EL-0085 A. A B. B C. C D. D
Description : What is the polarity of voltage at point 'Z' in the circuit shown in the illustration? EL-0085 A. It will always be positive. B. It will always be negative. C. It depends on the instantaneous polarity at point 'W'. D. It cannot be determined without a voltmeter.
Description : The circuit shown in the illustration represents a/an ____________. EL-0085 A. operational amplifier B. Wheatstone bridge C. magnetic amplifier D. power supply
Description : When a voltage of 95 VDC is applied to the circuit illustrated with a resistance of 470 ohms the current will be _______. EL-0018 A. 4.95 amps B. 202.2 milliamps C. 565.00 milliamps D. 2,325 milliamps
Description : When a voltage of 95 VDC is applied to the illustrated circuit with a resistance of 10.23 kohms the current will be _______ . EL-0018 A. 9.29 milliamps B. 107.68 amps C. 10.32 amps D. 11.02 amps
Description : When a voltage of 95 VDC is applied to the illustrated circuit with a resistance of 110 ohms the current will be _______. EL-0018 A. 0.863 amps B. 1.16 amps C. 1.863 amps D. 205 milliamps
Description : When a voltage of 95 VDC is applied to the illustrated circuit with a resistance of 32 ohms the current will be _______. EL-0018 A. 0.336 amps B. 2.968 amps C. 103.78 milliamps D. 127 milliamps
Description : When a voltage of 95 VDC is applied to the illustrated circuit with a resistance of 12 ohms the current will be _______. EL-0018 A. 6.126 amps B. 1.515 amps C. 7.916 amps D. 107 amps
Description : When a voltage of 115 VDC is applied to the illustrated circuit with a resistance of 17.8 ohms the current will be _______. EL-0018 A. 0.154 amps B. 2.755 amps C. 6.46 amps D. 0.1328 amps
Description : When a voltage of 115 VDC is applied to the illustrated circuit with a resistance of 237 ohms the current will be _______. EL-0018 A. 0.485 amps B. 1.485 amps C. 2.06 amps D. 0.352 amps
Description : When a voltage of 115 VDC is applied to the illustrated circuit with a resistance of 470 ohms the current will be _______. EL-0018 A. 244 milliamps B. 4.07 amps C. 5.85 amps D. 19.21 amps
Description : When a voltage of 115 VDC is applied to the illustrated circuit with a resistance of 10,230 ohms the current will be _______ EL-0018 A. 88.95 milliamps B. 103.45 milliamps C. 11.24 milliamps D. 0.91 amps
Description : When a voltage of 115 VDC is applied to the illustrated circuit with a resistance of 32 ohms the current will be _______. EL-0018 A. 278.26 amps B. 147.00 amps C. 8.90 amps D. 3.59 amps
Description : When a voltage of 115 VDC is applied to the illustrated circuit with a resistance of 12 ohms the current will be _______. EL-0018 A. 127 amps B. 9.58 amps C. 104.34 amps D. 1.24 amps
Description : When a voltage of 25 VDC is applied to the illustrated circuit with a resistance of 105.3 ohms the current will be _______. EL-0018 A. 130.3 amps B. 4.212 amps C. 1.237 amps D. 0.237 amps
Description : When a voltage of 442.7 VDC is applied to the illustrated circuit with a resistance of 1.25 ohms the current will be _______. EL-0018 A. 28.25 amps B. 35.32 amps C. 354.16 amps D. 443.62 amps
Description : When a voltage of 115 VDC is applied to the illustrated circuit with a resistance of 110 ohms the current will be _______. EL-0018 A. 1.045 amps B. 225 milliamps C. 2.045 amps D. 965.52 milliamps
Description : When a voltage of 115 VDC is applied to the illustrated circuit with a resistance of 1.74 ohms the current will be _______. EL-0018 A. 66.09 amps B. 116.74 amps C. .026 amps D. .015 amps
Description : An AC supply of 230 V is applied to half wave rectifier circuit. A transformer turns ratio is 20 : 1. Find i) Output DC voltage (ii) Peak Inverse Voltage (PIV)
Last Answer : Solution:
Description : Which of the following statements is true about the illustrated circuit? EL-0030 A. The field rheostat is used for manual voltage control. B. if the generator is flat compounded then the field rheostat ... to act like a series motor and overspeed with the controller in the full raise position.
Description : Component 'CR1' shown in the illustration is called a/an _______________. EL-0085 A. avalanche diode B. Zener diode C. breakdown diode D. all of the above
Description : Component 'B' of section 'I' shown in the illustration represents a _____________. EL-0093 A. bridge rectifier B. selsyn motor C. small generator D. shielded lamp
Description : One diode of a full-wave rectifier has burned out in a shorted condition. Therefore, the output will be ____________. A. zero B. a rectified half-wave C. a rectified full-wave D. equal to the AC input
Description : A full-wave rectifier has one diode burned out in an open condition, what will be the output characteristic of the device? A. Zero B. Half-wave rectified C. Full-wave rectified D. Equal to the AC input
Description : Which of the following expresses the relationship of the input and output frequencies in a full wave rectifier? A. The output frequency is the same as input frequency. B. The output frequency is ... frequency is twice the input frequency. D. The output frequency is four times the input frequency.
Description : In a full wave rectifier circuit using centre tapped transformer, the peak voltage across half of the secondary winding is 30 V. Then PIV is: (1) 30 V (2) 60 V (3) 15 V (4) 10 V
Last Answer : In a full wave rectifier circuit using centre tapped transformer, the peak voltage across half of the secondary winding is 30 V. Then PIV is: 60 V
Description : The use of four diodes, in a full-wave bridge rectifier circuit, will __________. A. provide unidirectional current to the load B. allow a very high leakage current from the load C. convert direct current to alternating current D. offer high opposition to current in two directions
Description : Component F in the illustrated device is for _________. EL-0033 A. short circut protection B. latching the trip unit closed after resetting the breaker C. overload protection D. providing a flexible connection between the input terminal G and the tripping unit E
Description : If the illustrated device is fully discharged, what will be the result? EL-0061 A. The battery will be short circuited because the mud space will be filled with lead sulfate B. The electrolyte ... minimum sulfuric acid. D. The plates will be maximum lead oxide and sponge lead minimum lead sulfate.
Description : What can be used to replace the exciter in the circuit shown in the illustration? EL-0101 A. A step-up transformer. B. A rectifier. C. A step-down transformer. D. An operational amplifier.
Description : When a voltage of 132 VDC is applied to the illustrated circuit with a resistance of 237 ohms the current will be ________. EL-0018 A. 1.236 amps B. 2.048 amps C. 0.557 amps D. 4.200 amps
Description : When a voltage of 132 VDC is applied to the illustrated circuit with a resistance of 470 ohms the current will be ________. EL-0018 A. 0.280 amps B. 3.560 amps C. 602 milliamps D. 1.673 amps