APTRANSCO PREVIOUS PAPERS FOR ELECTRICAL PDF

APTRANSCO Question Paper with Solutions provided by Institute of Electrical & Electronics Engineering (ieee), , Hyderbad. APTRANSCO/APGENCO Assistant Engineer AE Electrical Previous Question Papers | Indian Shout. Like. 0. Home. About. Contact us. ELECTRICITY. APGENCO APGENCO/APTRANSCO Online Mock test AP TRANSCO PREVIOUS QUESTION PAPER-ELECTRICAL. 1.

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Mho relay is usually employed for the protection of a Short lines only b Medium lines only c Long lines only d Any line Ans: Long lines only 2. For a single-phase a.

APTRANSCO AE Question Paper and Answer Key 2017 Released – Electrical, Civil Engineering

Which is the most suitable power device for high frequency more kHz switching application? A dc cumulatively compounded motor delivers rated load torque at rated speed. If series field is short circuited, then the armature current and speed will a Both increases b Both aptrransco c Increases and decreases d Decreases and increases Ans: Moving coil in dynamometer wattmeter connected a In series with fixed coil b Across supply c In series with load d Across load Ans: In an induction machine, if the air gap increased a Speed will be reduced b Efficiency will be improved c Power factor will be lowered d Breakdown torque will be reduced Ans: Power factor will be lowered A CRO screen has ten divisions on the horizontal scale.

Total stator losses are 1 KW. The slip and rotor ohmic losses at full load are a 0.

The two watt meters measurement the ratio of two meter readings aptransfo — 1-sqrt3: When sine wave is given as input to Schmitt trigger then its generates a Sine wave b Saw tooth wave c Triangle wave d Square wave Ans: In Gauss Seidel method the following factors are influenced for operation a Acceleration factor b Selection of slack buss c Both d None Ans: Low-pass filter function ii. The phase lead compensation is used to a Increase rise time and decrease overshoot b Decrease both rise time and overshoot c Increase both rise time and overshoot d Decrease rise time and increase overshoot Ans: Decrease rise time and increase overshoot The following element retains it energy after pfevious is disconnected a Resister b Inductor c Capacitor d Thermistor Ans: All of the above Lag net work Temperature of electrode electrial Arc furnace is a deg b deg c deg to deg d deg Ans: In bode plot the point which separates the lower and upper frequencies is called a Critical point b Cut-off point c d Ans: When Previius dc shunt machine generating the voltage at rated value.

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PREVIOUS PAPERS – Electrical Engineering Materials

If direction of rotation is reversed, then machine will a Build up its voltage with same polarity b Build up its voltage with opposite polarity c No build up of voltage d None Ans: No build up of voltage Which of the following plant is having lowest load factor? For SR latch whent the out put is undesirable a 0, 0 b 1, 0 c 0, 1 d 1, 1 Ans: Core loss component current decreases, Magnetizing component current decreases In ceiling fan the angle between auxiliary winding a main winding is a 0 deg b 90 deg c deg d deg Ans: In a shaded pole motor, shaded rings are used to a Field flux production b c d Ans: Field flux production Practical method of improving string efficiency a Increasing crass arms length b Using different size of insulators c Using different insulator materials d Using of guard rings Ans: Transient stability can be improved by a By putting series capacitor b By using dynamic resister c Auto re-closers d All of the above Ans: Harmonics are eliminated by using a Skewing of rotor b Distribution winding c Short pitch winding d All of the above Ans: For parallel operation of transformer at no load, then load shared are equal when a Impedance is proportional with respect to own KVA rating b c d Ans: Impedance is proportional with respect to own KVA rating In Induction motor Slip frequency of rotor current, when rotor speed is Nr.

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Then rotor producing slip field rotates with respect to stator is a Slip frequency b Nr c Ns d None Ans: Good regulation means a Less fluctuations from no-load to full-load b c d Ans: Less fluctuation from no-load to full-load When Alternator excitation increases and machine is operating at lagging power factor then a I increase b I decreases c No effect on current d None Ans: Flue gases coming out from furnace is first going through a Turbine b Economizer c Air pre-heater d Chimney Ans: Va and Vb are negative sequence component voltages the difference angle between Va and Vb with respect to Va is a b c d Ans: Heat convection, radiation, and conduction all are takes place in a Ice b Boiler c Refrigerator d Flue gases in pipe Ans: When moving iron meter is used to measure d.

Find Vab a Zero b 50 at an angle of 90 deg c 50 at an angle of 90 deg d None Ans: Vab is reference then angle between Vab and Ib is a deg b deg c deg d deg Ans: Linkbar Home careers blogs Apcpdcl.

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