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Engineering Interview Questions
Questions Answers Views Company eMail

Function of scoop in BFP

TATA,

1 11521

where multistage pump used

Bhel, TATA,

8 12513

What are the different auxiliary protections of a transformer?

CESC,

1 3409

what is compiler

1883

what is pmc(in rigid pavement)

1 5422

what is the weight of concrete for 1 cum?

Dhenu Infrastructure, L&T,

15 40310

how much steel required for 1 sq.m area?

AA Architects, L&T,

24 102392

The neutral&earth voltage is 0v.But we were connected the lighting load at the time ballast was failed.why?

1 3514

Why transformer use to generator neutral earthing purpose ?

1 4508

I want to know if flowrate increases in 16' pipe line what will happen to upstream pressure and why?

1 3572

There is two transformers of 2MVA & 3MVA, which transformer is located at the sending end & which is at receiving end. why?

3 6488

Which has more losses, AC or DC??

Infosys, TATA,

4 16819

What is plc and how to do preventive maintenance

1 5493

why +24 v and -48 v give to BTS? If -48v protect from surge then why we not use -24 v?

1840

how the synchronizing is obtained at bus couplers in grid substation? (because there we cannot change the frequency in one of transmission lines like in generator synchronization)

2366


Un-Answered Questions { Engineering }

how can we find the discharge pressure of the pump with the use of flow and NPSH?

1881


where uses EXe /EXd/Exo/Exn/Exp/Exq/EXia

9925


Compare the prandtl numbers of Air, water and Liquid metal. If prandtl number is more what do you understand?

3503


What are the areas where I need to make improvement? (Please provide examples and suggestions for improvement).

1612


how can we design robots

1950


Draw transformer phasor diagram.(full load,no load)

4178


A fan is handling hot air at 285 degC with flow of 411635 m3/hr, power consumed is 1165kW and efficiency is 66%. what will happen to flow, power and efficiency of the fan if a water spray system is introduced to reduce the air temperature up to 200 degC? (also please refer any document regarding this)

1908


Please explain the following and how these are working with PLC unit 1.I/O Module 2.I/O Device 3.Adaptor Card 4.Ribbon Adaptor 5.RS 485-FC

1602


Suppose a 3 phase, 2 pole, 440V induction motor is driving a flywheel of 600mm diameter, 150kg mass. By using v-belt and pulley, the speed is increased to 4500 RPM. What will be the effect on motor current?

1400


What is the difference between PS & metering CT (5p20,0.5 etc.)? Why in PS class CT only Vk is given ? Is PS class CT is more accurate than metering CT?

1124


What is the procedure for taking leave while detecting Epf and Esi?

2210


PREVIOUS AND NEW companies positive and negative points AFTER LIVING

2126


What is the source of dependent source ?

1886


Slip joints are provided in the propeller shaft a) To adjust the inclination of the propeller shaft b) To adjust the length of the propeller shaft c) To prevent the whirling of the propeller shaft d) To adjust the up and down movement of the rear axle

1347


What determines the thickness of the lamination or stamping?

1646