UnitedHealth Group interview questions and answers

361 Articles

361

Selection Charts for DOL Starters (L&T Switchgear)

August 5, 2021

1 Min Read

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August 5, 2021

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Answer : Fuseless Protection for DOL Starter Feeders with…

Electrical Engineering

Editor

For 415v, 3phase, 22kw rating of motor how to calculate MCCB rating ?

August 5, 2021

1 Min Read

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August 5, 2021

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Answer : Convert KW to HP (KW/0.75)…

Electrical Engineering

Editor

What happen when diesel genset supply connect to main supply ?

August 5, 2021

1 Min Read

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August 5, 2021

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Answer : The connection should be made at an appropriate point…

Electrical Engineering

Editor

Why we are used APFC Panel in industrial area. When P.F. low then what will be the effect in our system ?

August 5, 2021

1 Min Read

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August 5, 2021

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Answer : When the power factor is unity, then industries receive active power…

Electrical Engineering

Editor

The transformer which is smallest in size is and how to calculate that ? The options are 100 KVA, 50 Hz; 100 KVa, 100 Hz; 100 KVA, 25 Hz; 50KVA, 25 HZ ?

August 5, 2021

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August 5, 2021

1 Min Read

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Answer : 100 KVA, 100 Hz…

Electrical Engineering

Editor

What is meant by IP55 motor ?

August 5, 2021

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August 5, 2021

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Answer : IP55 does not indicate sealing…

Electrical Engineering

Editor

What is PTZ Camera ?

August 5, 2021

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August 5, 2021

1 Min Read

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Answer : PTZ stands for Pan, Tilt, and Zoom….

Electrical Engineering

Editor

Explain the functions of main isolation switches ?

August 5, 2021

1 Min Read

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August 5, 2021

1 Min Read

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Answer : The isolator is a mechanical switch which isolates….

Electrical Engineering

Editor

What is the use of conservator, buchholz relay, breather in a transformer ?

August 5, 2021

1 Min Read

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August 5, 2021

1 Min Read

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Answer : Buchholz relay is to protect the winding from over heat…

Electrical Engineering

Editor

What is the difference between KV, KVAR, KVA, KW ?

August 5, 2021

1 Min Read

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August 5, 2021

1 Min Read

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Answer : Kv is called as Kilo Volts or 1000Volts…

Electrical Engineering

Editor

What is the difference between MCCB & ACB & VCB ?

August 5, 2021

1 Min Read

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August 5, 2021

1 Min Read

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Answer : MCCB– Moulden Case Circuit Breaker…

Electrical Engineering

Editor

What are the advantages of star-delta starter with induction motor ?

August 5, 2021

1 Min Read

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August 5, 2021

1 Min Read

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Answer : The main advantage of using the star delta starter is reduction of current during…

Electrical Engineering

Editor

What is AVR and tell its principle and working ?

August 5, 2021

1 Min Read

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August 5, 2021

1 Min Read

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Answer : AVR is automatic voltage regulator which is nothing but stabilizer…

Electrical Engineering

Editor

Why CRGO material is used in transformer ?

August 5, 2021

1 Min Read

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August 5, 2021

1 Min Read

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Answer : CRGO is used in transformer to reduce the core losses in transformer…

Electrical Engineering

Editor

How to calculate VCB current rating for 2000 KVA transformer ?

August 5, 2021

1 Min Read

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August 5, 2021

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Answer : Power is defined as the rate of doing work…

Electrical Engineering

Editor

What are the Harmful Activities of bacteria ?

August 4, 2021

1 Min Read

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August 4, 2021

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Answer : There are many harmful activities of bacteria:…

Biology

Editor

How do Mammals take care of their Young ones ?

August 4, 2021

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August 4, 2021

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Answer : Mammals give birth to their young ones…

Biology

Editor

Why Some Application on Windows Platform is Working Very Slowly ?

July 22, 2021

1 Min Read

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July 22, 2021

1 Min Read

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Answer : There are various errors in windows platform they are…

Windows

Editor

What is the error message that you would get if you try to assign “Null” to an integer variable ?

July 22, 2021

1 Min Read

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July 22, 2021

1 Min Read

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Answer : error message: cannot convert null to int…

Visual Basic

Editor

What is the advantages of VB.NET ?

July 22, 2021

1 Min Read

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July 22, 2021

1 Min Read

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Answer : VB.NET offers code execution that runs under the Common Language Runtime (CLR)…

VB.NET

Editor

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UnitedHealth Group interview questions and answers

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