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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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.
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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