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5(4+1)÷5(5) LHS= 5×4+5×1 20+5 =25 RHS= 5×5= 25 Therefore= 25÷25=1 QED=1

(c) 9 ohm

Primary transducer: The sensor which comes in contact with the measurement medium to sense the quantity. Variable conversion element: the transducer which converts the sensor ... transmitted through suitable transmission medium to the operator or presented with the help of indicators.

A

S.No. Point Individual Drive Group Drive 1 Definition In this type of drive each machine has its own separate electric drive (motor). It may be directly coupled ... Lathe Machine (Similar application will be consider) Textile Industry (Similar application will be consider)

Neat sketch of Ajax Wyatt' vertical core furnace: Construction of Ajax Wyatt' vertical core furnace: Vertical core type induction heating furnace is nothing but transformer. It consists of ... is utilized to melt the charge. Where, R = Resistance of charge & I secondary current.

Open circuit means the wire is cut meaning power will not flow and close circuit means wire is not cut and hence power will flow.Short circuit is the same as close circuit

X+Y+Z =21 10+05+6=21

Rectifier

A

Errors in Wattmeter Compensation method Error due to connection method To overcome this error, wattmeters are provided with additional compensating winding which is connected in series with ... due to friction The weight of moving system be reduced to minimum possible.

The size of a conductor used in power cables depends on the: current to be carried

Ferrodynamic type frequency meter: (Electrical resonance type frequency meter): It consists of a fixed coil. The supply whose frequency is to be measured is connected across it. This coil ... so selected that the moving coil takes up a convenient position when frequency is of normal value. 

s=(Ns-N)/Ns =(1000-950)/1000=0.05.rotor cu.loss= s*rotor inputwe have rotor cu loss=5kWtherefore, rotor input= rotor cu.loss/s                              =5kW/0.05                              =100 kW

moving iron instruments areused to measure A.C curents &  voltages

an autotransformer may used only as step down transformer

A 120 Ah capacity battery can deliver a current of 8A for a period of 15

Absolute Instrument Secondary Instrument 1. These give magnitude of quantity in terms physical constants of instruments 1. These give reading directly of the quantity at the time of ... Raleigh current balance. 6. Examples - ammeter, voltmeter, amperehour meter, wattmeter etc.

Poynting vector wattmeter is based on Induction effect 

The severity of line to ground and three phase faults at the terminals of an unloaded synchronous generator is to be same. If the terminal voltage is 1.0 pu, Z1=Z2=j0.1 p.u. and Z0= j0.05 p.u. for the alternator, then the required inductive reactance for neutral grounding is 0.0166 p.u.

 Flux control 

Light arrester is a protecting device which is used at substation for protecting the devices in the substation from lighting phenomenon.      

The primary reason that power is transmitted at high voltages is to increase efficiency. ... The lower current that accompanies high voltage transmissionreduces resistance in the conductors aselectricity flows ... This means that thin, light-weight wires can beused in long-distance transmission.

Block diagram of basic wind energy conversion system: OR Components of wind power plant and their functions:  1) Rotor /Blade/Aero-turbine: Blade extracts significant power from the ... stronger and smoother. Towers are supports to raise the main part of the turbine up in the air.

Direct current is the flow of electricity or charge in one direction..  Alternative current is the flow of charge that doesn't flow in one direction. 

Diagram of Doubly fed induction generator (DFIG):  Explanation :-  DFIG can feed power through the stator as well as rotor to the grid. The stator is directly connected to the fixed frequency ... voltage is 690 V AC. So it must be step up to 33 KV to connect to power grid.  

(i)Applications of AC Servo Motor: 1. Computers 2. Robotics and toys 3. CD/DVD players 4. Textile industries 5. Instrument servos 6. Tracking and guidance system 7. Self- ... Laser cutters 20.Extruders 21.Engravers 22.Analytical and Medical instruments 23.Embroidery Machines 24.Packeging Machines

Relay have smaller ratings. Contactor is a high rating relay.

The power line voltage available in our homes is AC. Mobile dwellings are the most commonly DC-supplied homes and even then they tend to include AC supply for heavier loads.

Advantages : Reduce the making/production cost Increases the productivity CNC improves the production Low skill operator is required High accuracy and repeatability Complex machining operations are also ... Its replacement is difficult, that it is difficult to change old system to new system

Draw a circuit diagram of R.C. series circuit. Draw impedance triangle and power triangle for same circuit. 

Twin Tub Process:  A logical extension of the p-well and n-well approaches is the twin-tub fabrication process.  In this process, a substrate of high resistivity of n-type material ... manufacturing tolerances results.  This is particularly important as far as latch up is concerned.

Differential protection Scheme for bus bar: Under normal conditions the sum of the currents entering the bus bar zone is equal to those leaving it and no current flows through the relay ... . The difference of these currents will flow through the relay coil causing opening of circuit breaker.

Because India uses 220-230volt  In USA there they uses 110volt

i) Air capacitors: Air capacitors are capacitors which use air as their dielectric. The simplest air capacitors are made of two conductive plates separated by an air gap. Air capacitors can be made in ... axial form. Essentially the leads either exit the encapsulation at the side or the end.

What is the 2's complement of 01101? A) 10010 B) 10011 C) 1100 D) 1001 

Filter separates different components that are mixed together. Electrical filter can separate different frequency components. Electrical filters are the electrical circuits which are use to remove unwanted frequency components from the signal.

BJT is called bipolar junction transistor because in BJT current conduction takes place due to majority as well as minority charge carriers.

If we toss two coins simultaneously,there are four possible outcomes HEAD-HEAD  TAIL-TAIL HEAD-TAIL  TAIL-HEAD  so probability of getting exactly one tail=2/4=1/2

Diagram :

Limitations of differential protection of transformer: 1) Due to the magnetization characteristics of the CTs used, the ratio errors change with respect to the circulating currents. 2) The pilot wires ... current (higher imbalance) due to which accuracy of sensing & operation is decreased. 

A

B

Shunt compensation in an EHV line is used to Improve the voltage profile.

 In an alternator if the winding is short pitched by 60 electrical degrees, its pitch factor will be: A) 1.0 B) 0.866 C) 0.75 D) 0.50

A negative sequence relay is commonly used to protect  an alternator

Sr.No. Core type induction furnace. Core less induction furnace. 1 Less leakage flux  More leakage flux 2 Power factor is good Power factor is poor 3 ... normal frequency is used. Due to high frequency, high voltage supply, time required for heating is less.

A

AND gate multiple two inputs. If any one input is zero output will be zero if both inputs are one then only output is one.