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31st July 2014, 01:19 PM
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Join Date: Apr 2013
Re: Larsen & Toubro Electrical sample paper

As on your query I am providing Larsen & Toubro Electrical sample paper for which you are looking here

1. flow is directly proportional to?

2. what is newton's first law?

3. what is pascal's law?

4. strain gauge works on which priciple?

5. capacitance is equal to-
ans- capacitance= permiability*area/distance between plates

6. which is 3rd layer of OSI MODEL?

7. emf generated is equal to?
ans= phi*Z*N*P/2*A

8. which is used without contact?
ans= ultrasonic.

9. which is not used for measuring temp?
ans= abbuno(another was related to temp measurement)

10. PID stands for?

11. PID is used for?

12. which is used for measurement of temp upto 1200 degree ?

13. 200 degree celsius is equivalent to how many kelvin?

14. what is universal gas law?
ans= pv= n*r*T

15.which is used for 1:1 communication.?
ans= RS 232



* 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


1. Which of following software is not used for FEM.

2. Condition for perfect structure (ans.m=2j-3)

3. One question from iron- carbon diagram.

4. Which is used for hardening of brass.(hardenig methods).

5. Which is most suitable theory of failure for ductile materials.

6. One from solidification time of casting.

7. one from rack angle sticking friction.

8. one from chip cut thickness.

9. one from life of bearings.

10.one from heat transfer through multislabs and one from fins.

11.one question from linkage mechanism.

12.one question from ISO 9000.

13. One question from condensation temp in refrigation cycle.

14. Two questions from moulding techniques.


1. Convert 16 into binary form ..
2. In which gate o/p is 1 when all i/p are 1
3. What is moving coil ammeter reading, if supply is (10+15 sin 314 wt),
4. If voltmeter reads 100V,if we want to measure 150 what we have to do
5. Y-delta starter used in induction motor for..
6. In a balanced Y connection if VAN=400at 60,what is VBN ..
7. for unity TMS 10 sec, what about 0.5 TMS ans: 10(chck it).
8. 400V,15 kW,4%slip,50 Hz, 4 pole what is the torque,
9. what r the factors influencing change in torque &speed
10. buccholtz relay is used for
11. lightening arrester is used for
12. what is the power dissipated in i=10+5 sin 314wt for 2ohm resistor
14. what should be the impedance value for 3-4j,for max power transfer
15. if current required for triggering thyristor at -30 degrees(temp) is 80 mA, what is the current required at 60 degrees.
16. Question regarding thevenins resistance
17. Fourier series expansion like periodic signal ..
18. Question regarding reactive power compensation
19. Question regarding positive sequence currents some L-L-G fault occur on 3 " ph network Ia currentlike
20.400v,50ohm resistor , inductive reactance 100ohm , circuit to be resonance ,find the voltage across capacitor
21. what is the ideal power loss for 1.1mH & 11.86 nF, length is negligible voltage
22. sync motor is used for
23. In Q factor which resonance is usedans: series.
24. regarding p.u. values
25. regarding voltage bus parameters (3 ph networks)
26. charging of capacitor
27. reactive power compensation
28. Poles location
29.I controller is used for ..steady state error reduction


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