L&T(ECC)  Placement Paper   Whole Testpaper   puducherry-26 Jul 2007

L&T(ECC)  Placement Paper   Whole Testpaper   puducherry-26 Jul 2007

  • Posted by  FreshersWorld 
    7 Jan, 2012

    Hai, I am Praveen Kumar, from pondicherry engg college, Puducherry,

    On 26-07-07 , L&T(ECC) came to our college for campus recruiting, besides our college

    Annamalai university students were also participated in recruitment,

    The selection process is different for graduates and post graduates,

     I am doing M.Tech (electrical), for one hour they conducted test for 60 marks,

    30 one mark,15 two marks, no negative marks.

    The test was completely based on respective   subjects only; they are allowing mechanical, civil, environmental engg students along electrical.

    The subjects they covered are power systems, power electronics, electrical machines,

    Electrical measurements, simple logical circuits,

    I remembered only few questions

    • Convert 26 into binary form
    • In which gate o/p is 1 when all i/p are 1
    • What is the 2?s complement of  -17
    • What is  moving coil ammeter reading, if supply is (10+15 sin 314 wt),
    • If voltmeter reads 100V,if we want to measure 150 what we have to do
    • Y-delta starter is used for
    •  In a balanced Y connection if VAN=400at 60,what is VBN
    •  for unity  TMS 10 sec, what about 0.5 TMS
    • 400V,15 kW,4%slip,50 Hz,  4 pole what is the torque,
    •  what r the factors influencing  change in torque &speed
    • buccholtz relay is used for
    • lightening arrester is used for
    • what is the power dissipated in i=10+5 sin 314wt for 2ohm resistor
    • what should be the impedance value for 3-4j,for max power transfer
    • if current required for triggering thyristor at -30 degrees(temp) is 80 mA, what is the current required at 60 degrees.
    • Question regarding  thevenins resistance
    • Question regarding periodic Fourier series
    • Question regarding reactive power compensation
    • Question regarding positive sequence currents
    • 400v,50ohm resistor , inductive reactance 100ohm , circuit to be resonance ,find the voltage across capacitor 
    • what is the ideal power loss for 1.1mH & 11.86 nF, length is negligible
    • voltage
    • sync motor is used for
    • regarding p.u. values
    • regarding voltage bus parameters
    • charging of capacitor
    • reactive power compensation
    • Y-bus, Z-bus 2 x 2 matrix
    •   Poles location
    • I controller is used for


    Finally the paper is simple, prepare some basics. ALL THE BEST.

2009-2016 downloadmela.com. All rights reserved.