Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Satellite Systems Engineering (106)
Engineering AllOther (1379)

Engineering Interview Questions

Questions Answers Views Company eMail

what is a diffrence between MCCB, RCCB, MCB, & ELCB ? what is rated current e.g. on motor name plate indicated that is rated curent? what is full load current? If we run D.C. motor with mechanical coupling and we measure voltage on terminal it shows voltage or not ? same in AC also possible ?

Reliance,

5 15832

WE are using a 63A MCCB(SIEMENS MAKE) for one of the feeder in LV substation panel.It is supplying to a lighting & power socket DB.Settings in the MCCB is Ir = 63 * 1 , Isd = 8 times of Ir , tsd = 0.5 sec( I2 t off). Sometimes this MCCB is tripping .But no trip in DB MCB. Can anybody tell me reason ? From where i can know about the MCCB settings?

5 11217

Can we weld hot rolled steel ASTM A615 ? Please Give the detail answer please thanks alot

2251

how to reduce earth to neutral voltage?

Field Gun Factory,

8 26687

why the exchang voltge is in minus polarty i.e -48 instead of +48

2053

what happens when a cdma user becomes as a roamer?

HCL,

2008

what is the differnce of STATIC ENERGY METER FROM ordinary energy meter?

1 3481

Any one can explaination about calibration with rotating sub standards?

2073

What is the basic working principle of Tri vector meter?

TCS,

5 31984

What is the difference between double compression

Bhel, Hyundai, Orchid Chemicals and Pharmaceuticals, PDO, Prefamac,

7 58952

how current flows in circuit?

11 17937

Which code specifies the specification ofthe construction joints to be provided in the raft slab of a basement which is 6 m deep.what should bethe detail of such a joint?

L&T,

2476

What is the current flow in 230v ac supply ? What is the current flow in 415v Ac supply ?

6 32542

three phase electronic energy meter have how much voltage in combined both r,y,b & why?

1 3589

What are LAPD and LAPDm?

Qualcomm,

2 24744

Un-Answered Questions { Engineering }

Steps In starting boilers.

2218

if u have question papers/sample papers of any of PSUs,plz send me at dinesh.pandey3@gmail.com

1872

How will you justify IR value and Charging voltage of any motor,transformer and Cables.......???? . . . . . . . . Plz tell me any body Baljeet Singh, engineer_89@refiff.com

2122

Decibel.

2546

what are factors comes under relay setting (distance relay 7sa52) under OPEN DELTA VTs connection??

2559

As we use capacitior bank in 3ph ckt for improvement of PF, why not we use capacitor in single phase domestric use, at our house their are many inductive equipments,like fan,mixer,tube choke,air conditioner they also draw PF... by using capacitor can they improve PF. if yes--what are advantage and how to connect a capactor in single ph,and which type of capacitor if no- what are disadvantages.

1880

how to determine Sq.mm size of finolex power cables.

2007

What is topping?

Can XLPE/SWB/PVC (P3) 7C X 2.5mm2 be replaced by Can XLPE/SWB/PVC (P2) 7C X 2.5mm2??? P3 vs P2

1863

why ht cable end termination don't have a gland?

2944

Name the indicator diagram.

2285

What are the responsibilities of a site manager?

1133

what are the available sizes of pin type terminal lugs in the market today?

1840

What is big transformer parts and their function ? Ty

2213

How does an Accumulator works?

1448

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