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L&T Instrumentation Interview Questions
Questions Answers Views Company eMail

please send me hpcl placement papers

13 21817

Paper Details: company -- Hindustan Copper Limited post -- GET 2008 Date -- 03.08.2008 Dept.-- Electronics?Instrumentation Aptitude -- 70 Technical-- 80 Total Time -- 2hr 30min I have listed the question I could able to remember 1. BCD equivalent of 43 2. value of K for stability of a system from a given equation 3. transformer connection for darlington connection 4. damping of balastic galvanometer 5. advantage of chart-pen recorder over CRo 6. CRO - how to change bandwidth 7. questions on CRO construction 8. reverse saturation current of si diode 9. advantage of wire wound resistance over carbon resistance 10. core material for a small coil 11. max fanout-- TTL/ECL/CMOS/MOS 12. component of resistance of monolithic IC 13. functions of capacitors in multivibrators 14. to change a sawtooth signal into a square wave we use-- schmit trigger/ schottkey diode/ zener diode 15. relation b/w á & â in transistor ckt 16. function of SiO2 layer in fabrication 17. 3 questions on ODD MAN OUT

2 5926

what happens when the profibus fails while in operation (operation of a valve)?

5 12910

Difine flashing , Cavitaion & Noise? how to minimize these effects

3 9200

How is plc installing done

3 8397

tell me about the instrumentation,what is the actual need of it ?what are the characteristics of a IC engineer ?

11 17101

any body tell me ,contol valve has how many cheractristic? explain it.

6 11044

what is the difference between PLC & DCS

17 29136

In Increasing temperature why thermocouple used and RTD is not used. Both RTD and Thermocouple have in Range of uses.

5 14707

what's the minimum level required of SIL (safety integrity level)to use fire and gas system?

2 7045

What is trim material . Why it is known as trim.

1 6670

what is the different between plc and dcs ? I know full name of this two but I want to know what structure and working style and speed I/O capacity and controller difference?

2 16191

how we can calibrate an Interface level transmitter online

2 9208

Which is your favourite subject & explain any one topic of it.

9608

Which topics are covered in Process Control?

2172

Post New L&T Instrumentation Interview Questions


L&T Instrumentation Interview Questions


Un-Answered Questions

What is the difference between java singleton and spring singleton?

420


What is the web module?

440


What is a gray surface?

1125


How do I make a list into a table in word?

644


what is capital account? how to manage it? what is the process?

2200


How can we handle Error Handling in Laravel ?

1499


Difference between stand alone CRM and back-end CRM

4302


How in different ways patriotism can be shown?

1


What is the use of @resource?

1083


Are strings mutable in c++?

1147


How much ram do I need for gaming?

1084


what is the process to make control schematic ?

2260


What is difference between secondary namenode, checkpoint namenode & backupnod secondary namenode, a poorly named component of hadoop?

731


How a timer enhances for controlling any process.

1045


1- XC and the RC time constant are both measures of the reaction of C to a change in ____? 2-The power factor is a numerical ratio with a value between 0 and 1 equal to the ______________ of the phase angle. 3-When V and I are out of phase because of reactance, the product of V times I is called ______________ power 4-For _____________ inductors, the branch currents can be added algebraically. 5- The ______________ power in watts can be calculated as I^2R 6-Calculate XL with L = 30mH and f = 1kHz ( I have Xl=2piFL 2*3.141592653*1kHz*30mH =188 ohms Please check) 7-A parallel RL circuit has the values, R = 5kohms, XL = 5kohms. A voltage source of Vt = 10Vrms is connected in parallel to R and L. Determine the total current, It delivered by the voltage source Vt. 8-A series RC circuit has R = 1Mohm and C = 1microF. How long would it take for the capacitor to fully discharge if it is initially fully charged? 9-A circuit has real power = 300W and an apparent power of 500VA. Determine the power factor and phase angle. 10-The time constant for an LR series circuit is T = 0.1s and R = 10ohms. Calculate the inductance L.

3386