Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Make a list observation on Transformer?

HSL,

1084

How many earthings are required for commissioning the Transformer?

HSL, Dalmia Group,

14 17153

Name the earthings?

HSL,

3 4936




What is the acceptable earth resistance for Commissioning the Transformer?

HSL,

6 5972

Draw a SLD of HT distribution EB grid up to users Transformer?

HSL, VVL,

4503

What is Engine?

HSL,

6 3344

What are the earthing required for commissionthe DG Set?

HSL,

2 3198

If AVR fails in DG set what will be the affect?

HSL, GoodYear, Hotline Glass,

17 25366




What are the safety measures of Alternator Explain them?

HSL,

1 2251

Draw a SLD of DG distribution up to main LT panel?

HSL, TATA,

6712

What is mechanical interlock?Explain the uses?

HSL,

2 5966

What is UPS?

HSL,

14 7336

Draw a Block diagram of TWO UPS systems connected in Parallel in Paralled mode?

HSL,

2636

Draw a block diagramof Three UPS systems connected in Parallel mode?

HSL,

849

What are types of central ac plants?

HSL,

1 3662


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Un-Answered Questions { Electrical Engineering }

For an induction motor wat is the loading/unloading cycle duration or interms of L/UL ratio/ percentage?

793


what is the difference between Central Battery System and UPS in applications and uses? and why UPS suitable for Computers and central battery for emergency lighting?

7225


how to calculate the mesh earth network resistance in such substation, is there any recommended resistance values with references , thanks!

998


How to findout raw or ups power? its not indicated in socket,

766


How to dimensioning SDCCH, LAPD and CS7 signaling on GSM?

1471






If any cable burnt how can we identify it burnt by high current of high voltage? 

1142


Which type of air compressor is used now a days in the market. Keeping in mind of energy efficiency and maintenance points. Relevant documents may also be sent on mentioned email ids.

533


what is the IPC ? & what the uses ?

171


What is the criteria that generally follow by distribution licenses to fix contact demand of their industrial customers?

398


what is auto re-closer?

1053


how can we change the phase angle b/w two phase?

2322


To make a basic instrumentation amplifier, it takes A One op-amp with a certain feedback arrangement B Two op-amp and seven resistors C Three op-amps and seven capacitors D Three op-amps and seven resistors

724


2. Modify your design in question 1.a so that the circuit works according to the following function table X Y F 0 0 Clear 0 1 No Change 1 0 Parallel Loading 1 1 Count 3. Design a circuit that detects the pattern 010 in a serial input X considering: 3.a Overlapping 3.b No overlapping

677


armature winding of dc machine produce alternating emf then it convert in to dc by using commutator.But only we consider armature resistance why don't we consider inductive reactane effect?

802


How to calculate cable rating for 3 phase supply?

890