The schematic symbol for an operational amplifier in an analog circuit is a _________. A. circle B. square C. trapezoid D. triangle

The schematic symbol for an operational amplifier in an analog circuit is a _________. A. circle B. square C. trapezoid D. triangle
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Answer: D
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The schematic diagram shown in the illustration uses symbol 'A' to represent a/an _________. EL-0011 A. non-renewable fuse link B. circuit breaker coil C. overload relay coil D. thermal overload heater

Description : The schematic diagram shown in the illustration uses symbol 'A' to represent a/an _________. EL-0011 A. non-renewable fuse link B. circuit breaker coil C. overload relay coil D. thermal overload heater

Last Answer : Answer: D

What type of circuit is on card 'A0AA2' at coordinate '29Q' shown in the illustration? EL-0099 A. Operational amplifier B. Digital logic inverter C. Square wave pulse generator D. Binary counter

Description : What type of circuit is on card 'A0AA2' at coordinate '29Q' shown in the illustration? EL-0099 A. Operational amplifier B. Digital logic inverter C. Square wave pulse generator D. Binary counter

Last Answer : Answer: A

To provide its unique characteristics to analog circuits, the operational amplifier is made up of a/an ______________. A. voltage amp, current amp and output amp B. input amp, power amp and output amp C. scaling amp, power amp and voltage amp D. differential amp, voltage amp and output amp

Description : To provide its unique characteristics to analog circuits, the operational amplifier is made up of a/an ______________. A. voltage amp, current amp and output amp B. input amp, power amp and output amp C. scaling amp, power amp and voltage amp D. differential amp, voltage amp and output amp

Last Answer : Answer: D

By method of images, the problem can be easily calculated by replacing the boundary with which polygon? a) Rectangle b) Trapezoid c) Square d) Triangle

Description : By method of images, the problem can be easily calculated by replacing the boundary with which polygon? a) Rectangle b) Trapezoid c) Square d) Triangle

Last Answer : d) Triangle

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 : 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.

Last Answer : Answer: B

The voltage at the reference electrode of the circuit shown in the illustration is applied to the input of a/an ______________. EL-0090 A. class A detector whose output drives an autotransformer B. operational amplifier whose output controls a step-up voltage reactor C. amplitude modulator whose output drives an 2-stage isolation transformer D. magnetic amplifier whose output controls a saturable reactor

Description : The voltage at the reference electrode of the circuit shown in the illustration is applied to the input of a/an ______________. EL-0090 A. class A detector whose output drives an ... drives an 2-stage isolation transformer D. magnetic amplifier whose output controls a saturable reactor

Last Answer : Answer: D

Basic operating characteristics of the operational amplifier such as gain and stability are the function of its _____________. A. differential input stage B. power output stage C. feedback circuit D. supply voltages

Description : Basic operating characteristics of the operational amplifier such as gain and stability are the function of its _____________. A. differential input stage B. power output stage C. feedback circuit D. supply voltages

Last Answer : Answer: C

The circuit shown in the illustration represents a/an ____________. EL-0085 A. operational amplifier B. Wheatstone bridge C. magnetic amplifier D. power supply

Description : The circuit shown in the illustration represents a/an ____________. EL-0085 A. operational amplifier B. Wheatstone bridge C. magnetic amplifier D. power supply

Last Answer : Answer: D

The circuit shown in the illustration functions as a ____________. EL-0087 A. pulse trigger circuit for an operational amplifier B. three stage, high gain class 'A' amplifier C. binary ripple counter or shift register D. free running multivibrator

Description : The circuit shown in the illustration functions as a ____________. EL-0087 A. pulse trigger circuit for an operational amplifier B. three stage, high gain class 'A' amplifier C. binary ripple counter or shift register D. free running multivibrator

Last Answer : Answer: C

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 throttle control circuit B. feedback resistor of the summing amplifier circuit C. operational amplifiers in the autorotation circuit D. long time constant amplifier circuit

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

The schematic diagram shown in the illustration represents which of the listed solid-state circuits? EL-0069 A. Bridge rectifier B. Magnetic amplifier C. Flip-flop generator D. Cathodic amplifier

Description : The schematic diagram shown in the illustration represents which of the listed solid-state circuits? EL-0069 A. Bridge rectifier B. Magnetic amplifier C. Flip-flop generator D. Cathodic amplifier

Last Answer : Answer: A

As shown in the illustration, which of the elements listed does the line 'B' represent in the basic schematic symbol of a PNP transistor? EL-0068 A. Base B. Emitter C. Cathode D. Collector

Description : As shown in the illustration, which of the elements listed does the line 'B' represent in the basic schematic symbol of a PNP transistor? EL-0068 A. Base B. Emitter C. Cathode D. Collector

Last Answer : Answer: D

Operational amplifiers, used primarily in analog circuits, are characterized by ____________. A. high input impedance, high gain and low output impedance B. high input impedance, high gain and high output impedance C. low input impedance, low gain and high output impedance D. low input impedance, high gain and low output impedance

Description : Operational amplifiers, used primarily in analog circuits, are characterized by ____________. A. high input impedance, high gain and low output impedance B. high input impedance, high gain and high output ... gain and high output impedance D. low input impedance, high gain and low output impedance

Last Answer : Answer: A

An operational amplifier, as used in today's consoles, has a calculated gain of 5. This means that when the input changes _____________. A. 5 volts, the output changes 10 volts B. 10 volts, the output changes 5 volts C. 2 volts, the output changes 10 volts D. 10 volts, the output changes 2 volts

Description : An operational amplifier, as used in today's consoles, has a calculated gain of 5. This means that when the input changes _____________. A. 5 volts, the output changes 10 volts B. 10 volts, the output changes 5 volts C. 2 volts, the output changes 10 volts D. 10 volts, the output changes 2 volts

Last Answer : Answer: C

An operational amplifier, as used in today's consoles, may have a calculated gain of 5. This means that as the input changes by ______________. A. 1 volt, the output changes 5 volts B. 5 volts, the output changes 1 volt C. 5 volts, the output changes 10 volts D. 10 volts, the output changes 5 volts

Description : An operational amplifier, as used in today's consoles, may have a calculated gain of 5. This means that as the input changes by ______________. A. 1 volt, the output changes 5 volts B. 5 volts, the output changes 1 volt C. 5 volts, the output changes 10 volts D. 10 volts, the output changes 5 volts

Last Answer : Answer: A

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 : 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

Last Answer : Answer: B

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

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

If the unity-gain point of the operational amplifier used in question 24 is 500 kilohertz, what is the bandwidth of the circuit?

Description : If the unity-gain point of the operational amplifier used in question 24 is 500 kilohertz, what is the bandwidth of the circuit?

Last Answer : 50 kilohertz (Gain = 10; Gain-Bandwidth Product = 500,000) 500,000(Hz)

The circuit which changes input signal at output with phase shift of 1800 is called (a) Amplifier (b) operational amplifier (c) switch (d) inverter

Description : The circuit which changes input signal at output with phase shift of 1800 is called (a) Amplifier (b) operational amplifier (c) switch (d) inverter

Last Answer : (d) inverter

The shape of T-S diagram for Carnot Cycle is a (A) Rectangle (B) Rhombus (C) Trapezoid (D) Circle

Description : The shape of T-S diagram for Carnot Cycle is a (A) Rectangle (B) Rhombus (C) Trapezoid (D) Circle

Last Answer : (A) Rectangle

In the schematic of the electrical circuit shown in the illustration, what is the value of the total capacitance, when compared to the value of equal individual capacitors? EL-0038 A. Equal B. Half C. Double D. Squared

Description : In the schematic of the electrical circuit shown in the illustration, what is the value of the total capacitance, when compared to the value of equal individual capacitors? EL-0038 A. Equal B. Half C. Double D. Squared

Last Answer : Answer: C

The electrical schematic shown in the illustration indicates the lighting feeder circuit is _____________. EL-0014 A. three phase, 450 volt, and 60 cycle B. three phase, 120 volt, and 60 cycle C. single phase, 120 volt, and 60 cycle D. not specified

Description : The electrical schematic shown in the illustration indicates the lighting feeder circuit is _____________. EL-0014 A. three phase, 450 volt, and 60 cycle B. three phase, 120 volt, and 60 cycle C. single phase, 120 volt, and 60 cycle D. not specified

Last Answer : Answer: A

The symbol at coordinates '15R' in the illustration indicate a connection to ___________. EL-0100 A. the analog circuitry common bus B. ground C. the vessel's hull D. the console's chassis

Description : The symbol at coordinates '15R' in the illustration indicate a connection to ___________. EL-0100 A. the analog circuitry common bus B. ground C. the vessel's hull D. the console's chassis

Last Answer : Answer: A

If the area of the trapezoid below is 75 square units what is the value of x?

Description : If the area of the trapezoid below is 75 square units what is the value of x?

Last Answer : Not enough information has been given to determine the value ofx

On the synchro schematic symbol, what indicates the angular displacement of the rotor?

Description : On the synchro schematic symbol, what indicates the angular displacement of the rotor?

Last Answer : . The position of the arrow.

In reference to the schematic symbol for a diode, do electrons flow toward or away from the arrow?

Description : In reference to the schematic symbol for a diode, do electrons flow toward or away from the arrow?

Last Answer : Toward the arrow.

In the transistor schematic symbol, the arrow ________ (a) located on emitter (b) located on base (c) located on collector (d) points from north to south

Description : In the transistor schematic symbol, the arrow ________ (a) located on emitter (b) located on base (c) located on collector (d) points from north to south

Last Answer : a) located on emitter

In the illustration, the component VR2 on the A1 AMPLIFIER MODULE is _________. EL-0060 A. a zener diode to regulate the +9 volt power supply from common B. a variable resistor diode to control the output to terminal 1 that controls the input to terminal 10 C. a zener diode that regulates the voltage to terminal 2 at 9.1 volts DC D. a tunnel diode with a breakdown voltage of 6.6 Volts DC

Description : In the illustration, the component VR2 on the A1 AMPLIFIER MODULE is _________. EL-0060 A. a zener diode to regulate the +9 volt power supply from common B. a variable resistor diode to control the output to terminal ... 2 at 9.1 volts DC D. a tunnel diode with a breakdown voltage of 6.6 Volts DC

Last Answer : Answer: C

In the illustration, the component VR1 on the A1 AMPLIFIER MODULE is _________. EL-0060 A. a zener diode to regulate the +9 volt power supply from common B. a variable resistor diode to control the output to terminal 9 that controls the input to terminal 10 C. a zener diode that regulates the voltage to terminal 9 at 6.6 volts DC D. a tunnel diode with a breakdown voltage of 6.6 Volts DC

Description : In the illustration, the component VR1 on the A1 AMPLIFIER MODULE is _________. EL-0060 A. a zener diode to regulate the +9 volt power supply from common B. a variable resistor diode to control the output to ... terminal 9 at 6.6 volts DC D. a tunnel diode with a breakdown voltage of 6.6 Volts DC

Last Answer : Answer: A

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. the gain is increased B. the stability is increased by slowing the response time C. feedback is increased to the summing point at terminal 5 D. response time is increased decreasing stability

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

The centre of gravity of a plane lamina will not be at its geometrical centre if it is a a.Square b.Equilateral triangle c.Circle d.Rectangle e.Right angled triangle

Description : The centre of gravity of a plane lamina will not be at its geometrical centre if it is a a.Square b.Equilateral triangle c.Circle d.Rectangle e.Right angled triangle

Last Answer : e. Right angled triangle

A circle is inscribed in an equilateral triangle of side a. What is the area of any square inscribed in this circle? -Maths 9th

Description : A circle is inscribed in an equilateral triangle of side a. What is the area of any square inscribed in this circle? -Maths 9th

Last Answer : (c) \(rac{a^2}{6}.\)If a' is length of the side of ΔABC, thenArea of ΔABC = \(rac{\sqrt3}{4}\,a^2\)semi-perimeter of ΔABC = \(rac{3a}{2}\)∴ Radius of in-circle = \(rac{ ext{Area}}{ ext{semi-perimeter}}\) = \( ... {( ext{diagonal})^2}{2}\) = \(rac{\big(rac{a}{\sqrt3}\big)^2}{2}\) = \(rac{a^2}{6}.\)

What is the ratio of the area of a circum circle of equilateral triangle to the area of the square with same side length as equilateral triangle? -Maths 9th

Description : What is the ratio of the area of a circum circle of equilateral triangle to the area of the square with same side length as equilateral triangle? -Maths 9th

Last Answer : (d) π : 3.Let each side of the equilateral Δ be a units. Then, circumradius of the circle = \(rac{ ext{side}}{\sqrt3}\) = \(rac{a}{\sqrt3}\) units∴ Area of circumcircle = \(\pi\bigg(rac{a}{\sqrt3}\bigg)^2\) = \( ... units∴ Required ratio = \(rac{rac{\pi{a}^2}{3}}{a^2}\) = \(rac{\pi}{3}\) = π : 3.

Find the area of an equilateral triangle inscribed in a circle circumscribed by a square made by joining the mid-points -Maths 9th

Description : Find the area of an equilateral triangle inscribed in a circle circumscribed by a square made by joining the mid-points -Maths 9th

Last Answer : (d) \(rac{3\sqrt3a^2}{32}\)Let AB = a be the side of the outermost square.Then AG = AH = \(rac{a}{2}\)⇒ GH = \(\sqrt{rac{a^2}{4}+rac{a^2}{4}}\) = \(rac{a}{\sqrt2}\)∴ Diameter of circle = \(rac{a} ... rac{\sqrt3}{2}\) = \(rac{\sqrt3a^2}{32}\)∴ Area of ΔPQR = 3 (Area of ΔPOQ) = \(rac{\sqrt3a^2}{32}\)

The area of a square and circle is same and the perimeter of square and equilateral triangle is same, -Maths 9th

Description : The area of a square and circle is same and the perimeter of square and equilateral triangle is same, -Maths 9th

Last Answer : (b) 9 : 4√3.Let each side of the square = a cm. Then, Area of square = a2 cm2 Also, let r be the radius of the circle. Then, πr2 = a2 Let each side of the equilateral triangle = b cm. Then 3b = 4a ⇒ ... ratio between area of circle and area of equilateral Δ is a2 : \(rac{4\sqrt3a^2}{9}\) = 9 : 4√3.

The C.G. of a plane lamina will not be at its geometrical centre in the case of a (A) Right angled triangle (B) Equilateral triangle (C) Square (D) Circle

Description : The C.G. of a plane lamina will not be at its geometrical centre in the case of a  (A) Right angled triangle  (B) Equilateral triangle  (C) Square  (D) Circle

Last Answer : (A) Right angled triangle 

If a rectangle were called a circle, a circle a point, a point a triangle and a triangle a square, the shape of a wheel is (A) Rectangle (B) Circle (C) Point (D) Triangle

Description : If a rectangle were called a circle, a circle a point, a point a triangle and a triangle a square, the shape of a wheel is (A) Rectangle (B) Circle (C) Point (D) Triangle

Last Answer : (C) Point

The figure shows the front view of a convex lens, which originally had only one edge. Five holes of different shapes, namely triangle, square, pentagon, hexagon and circle, were drilled through it at points P, Q, R, S and T in such a way that the holes were parallel to each other, perpendicular to the edge and all the holes were still within the lens edge. What is the total number of edges in the lens after the holes were drilled?

Description : The figure shows the front view of a convex lens, which originally had only one edge. Five holes of different shapes, namely triangle, square, pentagon, hexagon and circle, were drilled through it at points P ... . What is the total number of edges in the lens after the holes were drilled? 

Last Answer : 57

In the inverting configuration, what is the voltage (for all practical purposes) at the inverting input to the operational amplifier if the input signal is a 1-volt, peak-to-peak sine wave?

Description : In the inverting configuration, what is the voltage (for all practical purposes) at the inverting input to the operational amplifier if the input signal is a 1-volt, peak-to-peak sine wave?

Last Answer : 0 volts.

What does the term "closed-loop" mean in the closed-loop configuration of an operational amplifier?

Description : What does the term "closed-loop" mean in the closed-loop configuration of an operational amplifier?

Last Answer : The use of degenerative (negative) feed-back

What are the three requirements for an operational amplifier?

Description : What are the three requirements for an operational amplifier?

Last Answer : . Very high gain, very high input impedance, very low output

The operational amplifier is _______ (a) High gain amplifier (b) high power amplifier (c)high resistance amplifier (d)low resistance amplifier

Description : The operational amplifier is _______ (a) High gain amplifier (b) high power amplifier (c)high resistance amplifier (d)low resistance amplifier

Last Answer : a) High gain amplifier

The ideal operational amplifier does not have:

Description : The ideal operational amplifier does not have: (1) Infinite input resistance (2) Infinite output resistance (3) Infinite voltage gain (4) Infinite bandwidth 

Last Answer : The ideal operational amplifier does not have: Infinite output resistance

An operational amplifier has an open loop gain of 200,000. Its output exhibits saturation at 10V.

Description : An operational amplifier has an open loop gain of 200,000. Its output exhibits saturation at 10V. The threshold differential voltage of the amplifier is  A) 25 micro-volt B) 50 micro-volt C) 5 Volts D) 10 volts

Last Answer : An operational amplifier has an open loop gain of 200,000. Its output exhibits saturation at 10V. The threshold differential voltage of the amplifier is 50 micro-volt

What is the importance of negative feedback in the operational amplifier?

Description : What is the importance of negative feedback in the operational amplifier? (A) It maintains the gain (B) The voltage difference between the input terminals is maintained at a very small value ( ... value (D) The voltage difference between the input terminals is maintained at a very high value

Last Answer : The voltage difference between the input terminals is maintained at a very small value

In the ideal closed loop operational amplifier, the gain depends on

Description : In the ideal closed loop operational amplifier, the gain depends on (A) value of the series component (B) value of the feedback component (C) on the operational amplifier itself (D) both A and B

Last Answer : In the ideal closed loop operational amplifier, the gain depends on (A) value of the series component (B) value of the feedback component (C) on the operational amplifier itself (D) both A and B

The effect of a finite gain of an operational amplifier used in an integrator is that

Description : The effect of a finite gain of an operational amplifier used in an integrator is that (A) it would not integrate (B) the slope of the output will vary with time (C) the final value of the output voltage will reduce (D) there will be instability in the circuit

Last Answer : The effect of a finite gain of an operational amplifier used in an integrator is that there will be instability in the circuit

What is operational amplifier?

Description : What is operational amplifier?

Last Answer : Operational amplifier is an amplifier which amplifies the input signal when we pass a low voltage signal .It has two terminals inverting and non inverting. It is an active device because it ... of negative feedback it provides the output waveform similar to the input waveform (truely amplified )