Description : If logic 1 = -5 vdc and logic 0 = 0 vdc, what logic polarity is being used?
Last Answer : Negative.
Description : If logic 1 = -5 vdc and logic 0 = -10 vdc, what logic polarity is being used?
Last Answer : Positive.
Description : A negative damper with negative bias clamps the most positive extremity of the output wave shape to what polarity (positive or negative)?
Last Answer : Negative potential.
Description : To which polarity does a positive damper with positive bins clamp the most negative extremity of the output waveform (positive or negative)?
Last Answer : Positive potential.
Description : In the basic transistor amplifier discussed earlier, what is the relationship between the polarity of the input and output signals?
Last Answer : The signals are opposite in polarity or 180 degrees out of phase with each other.
Description : What is the relationship between the polarity of the voltage applied to the PNP transistor and that applied to the NPN transistor?
Last Answer : The polarity of voltage applied to the PNP transistor is opposite of that applied to the NPN
Description : To properly bias an NPN transistor, what polarity voltage is applied to the collector, and what is its relationship to the base voltage?
Last Answer : Positive, more positive.
Description : What is the polarity of the first alternation of the tank circuit in an emitter-loaded npn pulsed oscillator?
Last Answer : Negative
Description : Using Weber’s molecular theory of magnetism, describe the polarity of the magnetic poles produced by stroking a magnetic material from right to left with the south pole of a magnet.
Last Answer : South pole at the right, north pole at the left.
Description : Before a diode will conduct, the cathode must be what polarity relative
Description : In applying Kirchhoff’s current law, what does the polarity of the current indicate?
Last Answer : Whether the current is entering the junction (+) or leaving the junction (-).
Description : What is the polarity of the currents that feed the V antenna?
Last Answer : Opposite.
Description : When a battery-charging panel is being used, the batteries will discharge if _____________. A. DC voltage is supplied B. the polarity is reversed C. the voltage fluctuates D. too little current is supplied
Last Answer : Answer: B
Description : When troubleshooting a console circuit card which is suspected of being faulty, the first step would be to _____. A. pull the card and measure the value of all resistors B. check for the ... for burned components D. check for continuity of circuit board traces and then the gain of each transistor
Last Answer : Answer: C
Description : While troubleshooting a circuit in an engine room central control console, a resistor is suspected of being faulty. Which of the following precautions must be observed if an ohmmeter is to be used to ... of the component isolated. D. The meter case must be grounded prior to attaching the leads.
Description : What type of logic family uses diodes in the input?
Last Answer : DTL (diode transistor logic).
Description : A, what logic element enables FF3 to toggle with the clock?
Last Answer : The AND gate
Description : What logic levels must exist for the FF to be toggled by the clock?
Last Answer : Both J and K must be HIGH.
Description : What type of logic gates are added to a parallel adder to enable it to subtract?
Last Answer : X-OR gates.
Description : A two-input X-OR gate will produce a HIGH output when the inputs are at what logic levels?
Last Answer : . One or the other of the inputs must be HIGH, but not both at the same time.
Description : How do we refer to errors caused by faulty logic and coding mistakes?
Last Answer : Bugs.
Description : How many logic gates could be contained in lsi?
Last Answer : 1,000 to 2,000.
Description : . In the arithmetic/logic section, data is returned to what section after processing?
Last Answer : Internal storage.
Description : What capability allows the arithmetic/logic section to test various conditions encountered during processing and take action based on the result?
Last Answer : Logic.
Description : What is the equivalent logic gate of a two-input NAND gate with both inputs inverted?
Last Answer : OR gate.
Description : In what state must the inputs to a NOR gate be in order to produce a logic 1 output?
Last Answer : All inputs must be low.
Description : A NAND gate has inputs labeled as A, B, and C. If A and B are HIGH, C must be at what logic level to produce a HIGH output?
Last Answer : . Low.
Description : A NAND gate has Z and X as inputs. What will be the output logic level if Z is HIGH and X is LOW?
Last Answer : HIGH.
Description : What must be the logic state of R and S to produce the TRUE output?
Last Answer : Both must be 1s (HIGH) at the same time.
Description : With regard to computer logic circuits, what is meant by "complement?"
Last Answer : The opposite of the original statement.
Description : Which digital data encoding method helps overcome a tape recorder’s low-frequency response problems by recording two logic levels for each incoming data bit?
Last Answer : Bi-phase level encoding.
Description : What is the purpose of a logic probe?
Last Answer : They provide you with a visual indication of the logic state at any point you choose in the circuit.
Description : What does a lighted LED indicate on a logic comparator?
Last Answer : A difference in logic states between the reference IC and the IC under test.
Description : A lighted LED on a logic clip represents what logic level?
Last Answer : A "1" state.
Description : What are the two logic states of an IC?
Last Answer : A "1" or "0."
Description : The LED lamps of a typical logic probe are normally in what state?
Last Answer : DIM.
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
Last Answer : Answer: A
Description : When a voltage of 132 VDC is applied to the illustrated circuit with a resistance of 10,230 ohms the current will be ________. EL-0018 A. 0.012 amps B. 77.5 milliamps C. 10,362 amps D. 0.792 amps
Description : When a voltage of 132 VDC is applied to the illustrated circuit with a resistance of 110 ohms the current will be ________. EL-0018 A. 0.833 amps B. 1.2 amps C. 2.2 amps D. 242 milliamps
Description : When a voltage of 132 VDC is applied to the illustrated circuit with a resistance of 32 ohms the current will be ________. EL-0018 A. 0.242 amps B. 4.125 amps C. 7.757 amps D. 1.64 amps
Description : If a voltage of 132 VDC is applied to the illustrated circuit where the resistance is 12 ohms, then current will be ___________. EL-0018 A. 0.090 amps B. 1.090 amps C. 11 amps D. 144 milliamps
Description : When a voltage of 124 VDC is applied to the illustrated circuit with a resistance of 17.8 ohms the current will be ________. EL-0018 A. 0.143 amps B. 2.555 amps C. 6.966 amps D. 141.8 milliamps
Description : When a voltage of 124 VDC is applied to the illustrated circuit with a resistance of 470 ohms the current will be________. EL-0018 A. 0.263 amps B. 3.79 amps C. 594 milliamps D. 1.7814 amps
Description : When a voltage of 124 VDC is applied to the illustrated circuit with a resistance of 10,230 ohms the current will be________. EL-0018 A. 0.012 amps B. 82.50 amps C. 10.354 amps D. 0.8439 amps
Description : When a voltage of 124 VDC is applied to the illustrated circuit with a resistance of 110 ohms the current will be________. EL-0018 A. 0.887 amps B. 1.127 amps C. 234 m amps D. 2.13 amps
Description : When a voltage of 124 VDC is applied to the illustrated circuit with a resistance of 32 ohms the current will be ________. EL-0018 A. 0.258 amps B. 3.875 amps C. 8.258 amps D. 156 amps
Description : When a voltage of 124 VDC is applied to the illustrated circuit with a resistance of 12 ohms. the current will be ________. EL-0018 A. 0.096 amps B. 1.16 amps C. 10.33 amps D. 136 m amps
Description : When a voltage of 110 VDC is applied to the circuit illustrated with a resistance of 10,230 ohms the current will be________. EL-0018 A. 0.0107 amps B. 93 amps C. 10,340 amps D. .951 amps