Define polarization.

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asked Mar 11, 2018 by anonymous

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asked Mar 11, 2018 by anonymous

Define magnetic susceptibility.

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Define brazing.

Last answer: Brazing: It is a metal joining process in which two or more metal items are joined together by melting and flowing a filler metal into the joint, the filler metal having a lower melting point than the adjoining metal.

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15 views 1 answer

asked Jun 26, 2020 by anonymous

Define absolute pressure, atmospheric pressure.

Last answer: Absolute Pressure : Absolute pressure is defined as actual total pressure including atmospheric pressure acting on a surface Unit of absolute pressure is pounds per square inch absolute and it ... by the air surrounding to the earth. Unit of atmospheric pressure is Pounds per square inch.

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asked May 25, 2020 by anonymous

Define: 1) Electrode 2) Electrolyte

Last answer: Electrode: An electrode is a small piece of metal or other substance that is used to take an electric current to or from the source of power. Electrolyte: The substance which is ... electric current to pass through it, resulting in the chemical decomposition, is known as an electrolyte.

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18 views 1 answer

asked May 7, 2020 by anonymous

Define earthing. State its types.

Last answer: Definition of earthing: * Earthing means connecting the metal body of electrical device to the general mass of earth by a wire of negligible resistance. OR * Earthing means connecting the metal body of ... ii) Pipe type earthing iii) Rod type earthing iv) Strip earthing v)Water main earthing

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67 views 1 answer

asked May 7, 2020 by anonymous

Define Feed and speed in shaping machine

Last answer: 1) Feed: Feed (S) is the relative movement of the work or tool in a direction perpendicular to the axis of reciprocation of the ram per double stroke. It is expressed in mm per stroke. 2) Speed: ... speed is the speed at which the metal is removed by the cutting tool in a period of one minute.

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45 views 1 answer

asked May 7, 2020 by anonymous

Define armature reaction in an alternator. Explain the effect of armature reaction at various P.F. of loads of alternator.

Last answer: Armature Reaction: The effect of armature flux on main flux is called as armature reaction. Armature Reaction at Various Power Factors: When armature is loaded, the armature flux modifies ... lagging p.f. For capacitive loads the effect of flux is partly distorting and partly strengthening.

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138 views 1 answer

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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53 views 1 answer

asked May 5, 2020 by anonymous

Define leakage factor.

Last answer: It is the ratio of total flux to leakage flux.

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41 views 1 answer

asked May 3, 2020 by anonymous

Define Energy conservation.

Last answer: Energy conservation: Reduction in the amount of energy consumed in a process or system, or by an organization or society, through economy, elimination of waste, and rational use is referred ... electrical power and to increase the efficiency of every machine and material by minimizing the losses.

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64 views 1 answer

asked May 3, 2020 by anonymous

Define the terms incandescent and incandescent lamp.

Last answer: Incandescent is the phenomenon in which the object emits or creates light when it is heated. An incandescent lamp is a lamp in which the filament is heated by electrical current & light is created.

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57 views 1 answer

asked May 3, 2020 by anonymous

Define Enhance lighting.

Last answer: Enhance lighting: Enhance lighting is the lighting with various colour effect and controlled light intensity, used for decoration and effective visualization of gold, silver, diamond and watches showroom purpose.

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51 views 1 answer

asked May 2, 2020 by anonymous

Define PIV, TUF, ripple factor, efficiency of rectifier.

Last answer: Peak Inverse Voltage (PIV): The maximum value of reverse voltage (for the diode in a rectifier) occurring at the peak of the negative cycle of the input cycle is called Peak Inverse Voltage. ... dc power delivered to the load to the ac input power from the secondary winding of the transformer.

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150 views 1 answer

asked May 2, 2020 by anonymous

Define Analog Transducer and give examples of it

Last answer: Analog Transducer: An analog transducer is a device that converts the input signal into a continuous DC signal of voltage or current. Examples: * Strain gauge * L.V.D.T * Thermocouple * Thermistor

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55 views 1 answer

asked May 2, 2020 by anonymous

Define resistor and draw symbol of variable resistor.

Last answer: Resistor: A resistor is an electrical component that limits or regulates the flow of electrical current in an electronic circuit. Symbol of variable resistor:

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71 views 1 answer

asked May 2, 2020 by anonymous

Define: i) Input Offset Voltage ii) Input offset Current iii) Input Bias Current iv) Output offset voltage

Last answer: Definition of parameters of OPAMP is follows: i) Input Offset Voltage: Input offset voltage is defined as the voltage that must be applied between the two input terminals of an OPAMP to null or ... to ground) and output voltage is obtained non zero such voltage is output offset voltage of opamp.

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193 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 do you mean by active filter? State its advantages over passive filter . Define pass band & stop band with respect to filter.

Last answer: Active Filter: Active Filter is formed by using active element along with the passive components. Advantages of Active filter over Passive filter: High value of pass band gain can be obtained. It is ... pass band. Stop Band Filter: The frequency range which is attenuated is known as stop band.

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62 views 1 answer

asked May 2, 2020 by anonymous

Define Sample and hold period with reference to S/H circuit.

Last answer: Sample Period:- The time period during which the voltage across the capacitor is equal to the input voltage is called sample period. Hold Period:- The time period during which the voltage across the capacitor is constant is called hold period.

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50 views 1 answer

asked Apr 27, 2020 by anonymous

Define Faraday’s first law of electromagnetic induction.

Last answer: Faraday’s First Law: Whenever a changing magnetic flux links with a conductor, an emf is induced in that conductor. OR When a conductor cuts across magnetic field, an emf is induced in that conductor.

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64 views 1 answer

asked Apr 16, 2020 by anonymous

Define Dielectric Strength for transformer oil. State its value for new transformer oil.

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asked Mar 18, 2020 by anonymous

Define Resonance.

Last answer: When the frequency of the external periodic force applied to a body is exactly equal to ( matches) natural frequency of body, the body vibrates with maximum amplitude, the effect is known as resonance

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asked Jun 29, 2019 by anonymous

Briefly define each of the following: (a) 1 coulomb (b) 1 volt (c) 1 ampere (d) 1 ohm.

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asked Jun 29, 2019 by anonymous

Define the term ion.

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asked Oct 25, 2018 by anonymous

Define absolute zero and absolute temperature

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asked Sep 22, 2018 by anonymous

Define the following terms and state their units: (i) Luminous intensity, (ii) Luminous flux

Last answer: i) Luminous intensity: This is defined as the luminous flux emitted into a solid angle of space in a specific direction. Its unit is the candela. OR The luminous flux per unit solid angle ( ... energy radiated by the light source in all direction. The unit of luminous flux is lumen (lm)

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69 views 1 answer

asked Sep 22, 2018 by anonymous

Define the following: i) Residential load ii) Industrial load

Last answer: i) Residential load: The electrical load which is used in residential installation is called as residential load. E.g. incandescent lamp, florescent tube, fan ,5A socket &15A socket etc. ii ... 3-ph any type of motor, electric furnace ,oven,welding transformer and any power load etc.

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69 views 1 answer

asked Sep 20, 2018 by anonymous

Define Tender and state any three requirements of valid contract.

Last answer: Meaning Tender:- Tender is offer or invitation of the work between any two parties. This offer may be written or non written. This offer is given by party no.1 (owner) to party no.2 ( ... . Contract should be signed by proper authorized persons. 6. It should be legally challenged in the court.

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47 views 1 answer

asked Sep 19, 2018 by anonymous

Define contract and state its types.

Last answer: Definition of Contract:- The agreement between two parties under some specific terms and conditions is known as contract. Types of Engineering contract:- 1) Lump sum contract 2) Item rate contract 3) ... contract 11)Cost plus(+) fluctuating fees rate contract 12) Cost plus(+) fix fee contract

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66 views 1 answer

asked Sep 18, 2018 by anonymous

Define service connection and state types connection and state types of overhead service connection

Last answer: Service Connection:- It is the input conductor or wire which is carried out from supply company (authorities) pole to consumers' main board or premises. Types of overhead service ... 1. Overhead service connection with Bare conductor 2. Overhead service connection with weather proof cable

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136 views 1 answer

asked Sep 18, 2018 by anonymous

Define Electrical Installation and give its classification.

Last answer: Meaning of Electrical installation : Electrical installation is a process of estimation and erection of electrical wiring with materials, and electrical machines used by ... Residential Electrical Installation ii) Commercial Electrical Installation iii) Industrial Electrical Installation

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104 views 1 answer

asked Sep 8, 2018 by anonymous

Define laminar flow and turbulent flow.

Last answer: Laminar flow : When a fluid flowing through the pipe at different speeds (fast at center and slow at edges), and the fluid particles move in layers with one layer sliding over the adjacent ... successive cross sections, then this flow is called as turbulent flow. Reynolds no is greater than 4000

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50 views 2 answers

asked Sep 8, 2018 by anonymous

Define transducer. Give two examples.

Last answer: Transducer - It converts one form of signal into another form. A transducer is a device that is used to convert a physical quantity into its corresponding electrical signal. Classification - 1. Active transducer 2. Passive transducer

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93 views 5 answers

asked Sep 7, 2018 by anonymous

Define natural, mechanical, forced and induced draught systems.

Last answer: Natural draught system: - When the fuel is burnt (combustion) in the furnace due to natural circulation of air, the draught is called natural draught. Mechanical draught system: - In a mechanical ... combustion. OR If fan/blower is placed after the furnace then it is called as induced draught

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46 views 1 answer

asked Sep 7, 2018 by anonymous

Define the term solar constant.

Last answer: Solar energy arrived atmosphere at a constant rate of 1350W/M²

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56 views 2 answers

asked Sep 7, 2018 by anonymous

Define Q factor.

Last answer: Quality Factor: The quality factor basically represents a figure of merit of a component (practical inductor or capacitor) or a complete circuit. It is a dimensionless number and defined as: ... between two branches of the circuit to the current taken by the parallel circuit from the source.

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49 views 1 answer

asked Sep 7, 2018 by anonymous

Define balanced 3 phase load.

Last answer: Balanced 3 phase Load: Balanced three phase load is defined as star or delta connection of three equal impedances having equal real parts and equal imaginary parts. It takes same current of equal magnitude and equal phase angle.

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57 views 1 answer

asked Sep 7, 2018 by anonymous

Define admittance and state its unit.

Last answer: Admittance is defined as the ability of the circuit to carry (admit) alternating current through it. OR It is the reciprocal of impedance Z. i.e Admittance Y = 1/Z. Unit: Its unit is siemen (S) or mho (Ʊ).

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99 views 1 answer

asked Sep 6, 2018 by anonymous

Define :- (i) Accuracy (ii) Resolution

Last answer: i) Accuracy: It is the closeness of an instrument reading with the true value of the quantity under measurement. OR It is defined as the ability of an instrument to respond to a ... can be detected with certainty by an intrument. OR Resolution is the smallest measurable input change

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40 views 1 answer

asked Sep 6, 2018 by anonymous

Define energy. Write unit of it.

Last answer: Energy :- Electrical energy is defined as the work done in moving electrical charge in electrical fields over specific time duration OR The total power delivered or consumed by consumer over specific time duration. ... the power w.r.t. time Unit :- Its Unit in watt sec., WHr., KWHr.

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50 views 1 answer