Recent questions tagged diagram

asked Jun 28, 2020 by anonymous

Draw the labeled block diagram of process control system and explain each block.

Last answer: Explanation - Process control system consists of process or plant, sensor, error detector, automatic Controller, actuator or control element. 1) Process or plant- process means some manufacturing sequence ... process which changes the process variable. Output of this block is denoted by u .

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139 views 1 answer

asked May 22, 2020 by anonymous

State the meaning of Single line diagram.

Last answer: Meaning of Single line diagram: The single line diagram of a power system is the network which shows the main connections and arrangement of the system components along with their data ( ... breakers, transformers, capacitors, bus bars, and conductors are shown by standardized schematic symbols.

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35 views 1 answer

asked May 21, 2020 by anonymous

Draw the circuit diagram of battery charger using SCR and explain it’s working.

Last answer: Battery charger circuit using SCR: The figure shows the battery charger circuit using SCR. A 12V discharged battery is connected in the circuit and switch SW is closed. The singlephase 230V ... not fired. In this way, after full charging, further charging is automatically stopped.

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224 views 1 answer

asked May 21, 2020 by anonymous

Draw circuit diagram of symmetrical configuration of bridge converter.

Last answer: circuit diagram of symmetrical configuration of bridge converter

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41 views 1 answer

asked May 21, 2020 by anonymous

Draw circuit diagram of Class B commutation.

Last answer: Class B: Resonant Pulse Commutation:

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43 views 1 answer

asked May 7, 2020 by anonymous

Explain MCB and ELCB with connection diagram supplying single phase load.

Last answer: OR OR Explanation: * MCB provides short circuit protection. * MCB provides overload protection * ELCB provides earth fault protection. * MCB is in series with ... occurs, the ELCB cuts off the power within the time of 0.1 sec. automatically to protect the personnel.

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212 views 1 answer

asked May 6, 2020 by anonymous

Explain count up (CTU) instruction with timing diagram.

Last answer: The CTU is an instruction that counts false-to-true rung transitions. Rung transitions can be caused by events occurring in the program. When rung conditions for a CTU instruction have made a false-to-true ... of Counter up(CTU) Instruction: Too many uploads - please try again in an hour

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70 views 1 answer

asked May 6, 2020 by anonymous

Draw the block diagram of PLC.

Last answer: Block diagram of PLC and input/output devices used for PLC Input/output devices - The input module has bank of terminals for physically connecting input devices, like push buttons, limit switches etc. ... is to translate signals from the PLC's CPU into a form that the output device can use.

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175 views 2 answers

asked May 6, 2020 by anonymous

Define impedance diagram and reactance diagram.

Last answer: Impedance diagram: Impedance diagram is the simplified equivalent circuits of single line or one line diagrams of power system in which all components are represented by their equivalent circuit. ... machines are neglected and is used only for fault current calculation is called reactance diagram.

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54 views 1 answer

asked May 3, 2020 by anonymous

Describe control of a single lamp from three places. Draw the relevant circuit diagram.

Last answer: Single lamp control from three places- It consists of two way switches & intermediate switch, the circuit diagram is as shown in figure. We require two 2-way switches and one intermediate switch and a lamp ... position of any one switch is changed, then the lamp will be turned off.

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90 views 1 answer

asked May 3, 2020 by anonymous

Describe the working principle of Thyristor operated dimmer with the help of circuit diagram.

Last answer: Thyristor operated dimmer: A popular thyristor operated dimmer circuit employ TRIAC-DIAC phase control for low AC power control. During each half-cycle, the capacitor charges through (R1+VR1). When the ... time constant {C (R1+VR1)}. Thus by reducing VR1 the lamp brightness can be increased.

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178 views 1 answer

asked May 3, 2020 by anonymous

Explain the working of Neon sign tube with diagram.

Last answer: Neon sign tube: The construction & circuit diagram for neon tube is as shown in fig. Basically neon tube is used for advertisement or decoration purpose. The maximum length of tube is ... the HT transformer must be earthed separately. * Caution notice of danger board is required.

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158 views 1 answer

asked May 3, 2020 by anonymous

Explain the working of HPMV Lamp with neat diagram.

Last answer: High-pressure Mercury-Vapour Lamp (HPMVL): Working: * Whenever 1-ph, 230V, AC Supply is provided to the discharge tube of MVL, initially the current flows from Phase to the choke to ... : The function of power factor improvement capacitor is to improve the power factor from 0.5 to 0.95.

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189 views 1 answer

asked May 3, 2020 by anonymous

Illustrate with neat wiring diagram a single lamp control by two point method.

Last answer: Single lamp control by two point method: This system is commonly used for stair case wiring. It consists of two way switches (the switch operates always in one of the two possible positions) the ... the person will change the position of switch S2, so that the lamp will be switched OFF'.

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78 views 1 answer

asked May 2, 2020 by anonymous

Draw the block diagram of regulated power supply, explain function of each block and draw waveforms of each stage.

Last answer: 1. A step down transformer 2. A rectifier 3. A filter 4. A regulator Operation of Regulated Power Supply:- Step Down Transformer:- A step down transformer will ... regulator. A regulator will maintain the output constant even when changes at the input or any other changes occur.

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506 views 3 answers

asked May 2, 2020 by anonymous

Describe strain gauge with labelled diagram.

Last answer: A Strain gauge is a sensor whose resistance varies with applied force. It converts force, pressure, tension, weight, etc., into a change in electrical resistance which can then be measured. When external ... to the applied strain. So, the voltmeter can be calibrated in terms of strain or force.

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71 views 1 answer

asked May 2, 2020 by anonymous

Define Multivibrator. State the types of multivibrator. Which M/V can be used as a flip-flop? Draw the circuit diagram.

Last answer: Definition:- A multivibrator is an electronic circuit that switches rapidly by means of positive feedback between two or more states. OR A multivibrator is an electronic circuit used to implement a ... Bistable Multivibrator: it can operate as a flip-flop, Circuit diagram

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68 views 1 answer

asked May 2, 2020 by anonymous

What is PLL? Explain its operation with a block diagram.

Last answer: PLL - A phase-locked loop or phase lock loop is a control system that generates an output signal whose phase is related to the phase of an input signal Block diagram ... to the input frequency. The phase - locked loop goes through three states free running capture and phase lock.

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83 views 1 answer

asked May 2, 2020 by anonymous

Draw block diagram of PLL as a FM demodulator. Explain function of each block.

Last answer: Operation: The FM signal which is to be demodulated is applied at the input of the PLL. the PLL is locked to the FM The error voltage produced at ... using PLL ensures a high Linearity, between the instantaneous input frequency and VCO control voltage (error amplifier output)

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112 views 1 answer

asked May 2, 2020 by anonymous

Block Diagram of op-Amp

Last answer: Block Diagram: The OP-AMP is basically a different amplifier i.e. it will amplify the voltage which is differentially present between its input terminals. 1.Input stage: The ... normally a complementary output stage. It increases the OPAMP. It also provides a low output resistance.

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100 views 2 answers

asked Apr 27, 2020 by anonymous

Explain dynamic and static induced emf with neat diagram.

Last answer: Dynamically Induced EMF:- In this case, either coil moves or magnet moves, so that there is relative motion between coil & magnetic field. Thus magnetic field is cut by coil & emf is induced in it. The emf ... The expression for induced EMF is e= -L(di/dt) or = -N(dϕ/dt).

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107 views 1 answer

asked Apr 27, 2020 by anonymous

Explain with neat diagram series and parallel magnetic circuits.

Last answer: Series magnetic circuit: When different magnetic materials having different lengths, cross sectional areas and permeability are connected one after another, in which same flux is established in different sections, then it is called series ... flux, Φ = Φ1 + Φ2 Path 1: BAFE Path 2: BACD

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68 views 1 answer

asked Apr 27, 2020 by anonymous

Explain the procedure to perform Short Circuit test on single phase transformer with circuit diagram.

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69 views 0 answers

asked Jan 20, 2020 by anonymous

Energy meter diagram

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28 views 0 answers

asked Jan 20, 2020 by anonymous

All control diagram

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38 views 0 answers

asked Oct 13, 2019 by anonymous

Explain working of AC circuit breaker using SCR with circuit diagram.

Last answer: AC Circuit Breaker: The circuit configuration of static AC circuit breaker using SCR is shown in the figure. When switch S' is closed, the SCRs T1 and T2 are fired in positive ... to non-availability of gate current. Thus the maximum time delay for breaking the circuit is one half-cycle.

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678 views 1 answer

asked Sep 4, 2019 by anonymous

block diagram of logic analyzer.

Last answer: A logic analyzer can be triggered on a complicated sequence of digital events, then capture a large amount of digital data from the system under test (SUT).When logic analysers first came ... Once the data are captured, they can be displayed several ways, from the simple) to the complex

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2.7k views 1 answer

asked Sep 4, 2019 by anonymous

operation of DSO with block diagram.

Last answer: The input is amplified and attenuated with input amplifiers. The output of the input signal amplifiers feeds an analog to digital converter (ADC). There are numbers of ADC available. But the selection of ADC ... view the display on the CRT, the data from memory is reconstructed in analog form.

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176 views 1 answer

asked Aug 10, 2019 by anonymous

Draw block diagram for CNC drilling machine and explain its working.

Last answer: Block diagram consist of the following points: Machine tool with DC servo motor as feedback element. The transducer is added as adaptive control application. The auxiliary controller ... line. The interrupt pulses are generated by TBG and supplied to computer through inter

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280 views 1 answer

asked Aug 8, 2019 by anonymous

Draw the block diagram of satellite sub-system and explain power subsystem.

Last answer: POWER SUBSYSTEM- This system provides the necessary DC power to the satellite. All communication satellites derive their electrical power from solar cells. There is also a battery backup facility used during ... . to d.c. converter is used to raise the level of low voltages to high voltage.

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2.9k views 1 answer

asked Aug 4, 2019 by anonymous

Explain space diagram & vector diagram

Last answer: Space diagram: It is the diagram in which number of forces acting on body is drawn in space to a suitable scale and naming the spaces in order by Bow's notation. Vector diagram: It is the ... of the forces drawn in space diagram by maintaining the same order as it was maintained in space diagram.

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38 views 1 answer

asked Aug 3, 2019 by anonymous

Explain with neat diagram the working of photo-voltaic cell.

Last answer: Diagram the working of photo-voltaic cell: Working:- Solar cell operates on principle of Photo-voltaic effect Solar cell works in following steps: The solar cell is composed ... . When you connect loads such as a light bulb, electric current flows between the two electrodes.

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135 views 1 answer

asked Jul 31, 2019 by anonymous

Describe block diagram of digital comparator and write truth table of 2 bit comparator.

Last answer: Digital comparator is a combinational circuit which compares two numbers, A and B; and evaluates their relative magnitudes. The outcome of the comparison is given by three binary variables which indicate whether A ... Depending on the result of comparison one of these outputs will go high.

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66 views 1 answer

asked Jul 30, 2019 by anonymous

Draw the wiring diagram of fluorescent tube. Explain the working of choke and starter.

Last answer: Fluorescent lamp:- Operation:- When switch is ON current flows through the choke-filament no1- starter-filament no. 2- to neutral, At that time choke induces high voltage which is applied to ... at the time of starting. ii) Starter: To make and break the circuit to start the tube.

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2.5k views 1 answer

asked Jul 22, 2019 by anonymous

Draw the labeled interfacing diagram to interface relay with 89C51 microcontroller.

Last answer: the labeled interfacing diagram to interface relay with 89C51 microcontroller

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69 views 1 answer

asked Apr 21, 2019 by patrick

what is a diode

if you got you will receive some cash

Last answer: A diode is an electronic device which permits one directional flow of electric current.

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93 views 1 answer

asked Oct 28, 2018 by anonymous

Working of western syncroscope

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68 views 0 answers

asked Oct 25, 2018 by Sai

Explain the working of varactor diode

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89 views 0 answers