Description : What is the difference between a summing amplifier and an adder circuit?
Last Answer : The adder simply adds the input signals together while the summing amplifier multiplies the sum of the input signals by the gain of circuit.
Description : Can a difference amplifier have more than two inputs?
Last Answer : No
Description : In the illustrated amplifier, the RESET potentiometer A1R2 sets the stability of the control loop by changing the reset time constant. As the potentiometer is turned clockwise _________. EL-0060 A. ... is increased to the summing point at terminal 5 D. response time is increased decreasing stability
Last Answer : Answer: B
Description : Common basic applications for the operational amplifier include ____________. A. counting, pulsing and clocking amplifiers B. summing, scaling and difference amplifiers C. step-up, step-down and rectifying amplifiers D. all of the above
Description : The conversion of the throttle command voltage to the signal necessary to achieve the desired shaft RPM is accomplished by the _____________. A. ahead or astern function generator of the ... circuit C. operational amplifiers in the autorotation circuit D. long time constant amplifier circuit
Last Answer : Answer: A
Description : How many inputs and outputs are possible with a differential amplifier?
Last Answer : Two inputs, two outputs.
Description : One feature of the operational amplifier is that it can have ____________. A. up to ten outputs B. binary coded decimal inputs C. several hundred amps at the output D. inverting and non-inverting inputs
Last Answer : Answer: D
Description : The three devices which make up the circuit shown in the illustration are ____________. EL-0087 A. flip-flops B. exclusive 'OR' gates C. summing op amps D. function generators
Description : Crash project duration is obtained by summing the (A) Normal durations for all the activities (B) Crash durations for all activities (C) Crash durations for all the activities along the ... along the critical path obtained by taking into account the crash duration for all the activities.
Last Answer : (D) Crash durations for all the activities along the critical path obtained by taking into account the crash duration for all the activities.
Description : In a deductive argument conclusion is: (A) Summing up of the premises (B) Not necessarily based on premises (C) Entailed by the premises (D) Additional to the premises
Last Answer : (C) Entailed by the premises
Description : What two inputs to a J-K FF will override the other inputs?
Last Answer : Clear (CLR) and preset (PS or PR).
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 : What is the equivalent logic gate of a two-input NAND gate with both inputs inverted?
Last Answer : OR gate.
Description : What are the two inputs to an amplidyne?
Last Answer : The mechanical force applied to turn the amplidyne, and the electrical input signal.
Description : What are the inputs to a D FF?
Last Answer : Clock and data
Description : How many inputs does a T FF have?
Last Answer : One.
Description : For an R-S FF to change output conditions, the inputs must be in what states?
Last Answer : 1 and 0, or opposite states.
Description : With the inputs shown below, what will be the output of S1, S2, and C2?
Last Answer : MSD of the sum.
Description : . What will be the output of a half adder when both inputs are 1s?
Last Answer : Sum equals 0 with a carry of 1.
Description : . What will be the output of an X-NOR gate when both inputs are LOW?
Last Answer : HIGH.
Description : What will be the output of an X-OR gate when both inputs are HIGH?
Last Answer : Low (0)
Description : What are the required radar inputs for proper indicator operation?
Last Answer : Triggers, video, and antenna information.
Description : What is the output Boolean expression for an AND gate with A and B as inputs when the B input is inverted?
Last Answer : AB
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 : What is the output Boolean expression for a NOR gate with R and T as inputs?
Last Answer : (R +T)’
Description : What will be the output of a NOR gate when both inputs are HIGH?
Last Answer : 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 : What is the output Boolean expression for a NAND gate with inputs A, B, and C?
Last Answer : C B A
Description : What must be the state of the inputs to a NAND gate in order to produce a LOW output?
Last Answer : All inputs must be HIGH.
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?
Description : What is the Boolean expression for the output of an AND gate that has R and S as inputs?
Last Answer : f = RS.
Description : What two methods are used to compensate for the problems that cause low gain in an rf amplifier?
Last Answer : . RF transformers are used and the transistor is neutralized.
Description : What two primary items determine the class of operation of an amplifier?
Last Answer : The amount of bias and the amplitude of the input signal
Description : If the single-input, differential-output, differential amplifier has an output signal taken between the two output terminals, what will the peak-to-peak amplitude of this combined output be?
Last Answer : 200 millivolts. A-18. a. Differential amplifier
Description : If the two input signals to a difference amplifier are equal in amplitude but neither in phase nor 180 degrees out of phase, what will the output signal be?
Last Answer : . A different shape than the input signals but larger in amplitude.
Description : If the two input signals to a difference amplifier are equal in amplitude and 180 degrees out of phase, what will the output signal be?
Last Answer : Equal in shape and frequency to each input signal and larger in amplitude by two times than
Description : . If the two input signals of a difference amplifier are in phase and equal in amplitude, what will the output signal be?
Last Answer : No output (the signals will "cancel out").
Description : What two transistor amplifier configurations are combined in the single-transistor, two-input, single-output difference amplifier?
Last Answer : Common emitter (CE) and common base (CB)
Description : In the power amplifier shown in figure 2-10, what two signals are mixed to produce the output signal?
Last Answer : Local oscillator and coherent oscillator.
Description : If C4 were removed from the circuit, what would happen to the output of the amplifier?
Last Answer : The output would decrease. (C4 decouples R2 preventing degenerative feedback from R2.)
Description : What components form the input-signal-developing impedance for the amplifier?
Last Answer : C2 and the secondary of T1.
Description : What problem is caused in an rf amplifier by a loosely coupled transformer?
Last Answer : A too-narrow bandpass.
Description : What is the most common form of coupling for an rf amplifier?
Last Answer : Transformer coupling.
Description : Can a parallel LC circuit be used as the frequency determining network for an rf amplifier?
Last Answer : Yes.
Description : What is the purpose of a frequency-determining network in an rf amplifier?
Last Answer : To provide maximum impedance at the desired frequency.
Description : If the output impedance of an amplifier circuit is decreased, what is the effect on the gain?
Last Answer : The gain decreases.
Description : If the input-signal-developing impedance of an amplifier is increased, what is the effect on the gain?
Last Answer : The gain increases.
Description : What component in an amplifier circuit tends to limit the low-frequency response of the amplifier?
Last Answer : The coupling capacitor (C3).
Description : What compone What components What components can be used to increase the high frequency response of an amplifier?
Last Answer : Peaking coils.
Description : What is the major factor that limits the high-frequency response of an amplifier circuits?
Last Answer : The capacitance of the circuit.