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HPCL Interview Questions
Questions Answers Views Company eMail

What will be the voltage regulation of a full load and 0.80 power factor lagging load transformer when a two winding single phase transformer has a voltage regulation of 4.5% at full load and unity power factor?

731

When the relative speed between the magnetic fields of stator and rotor does is zero under steady state operation?

736

What is the armature mmf in a D.C machine?

787

What will be the output voltage of a transformer if it is primarily energized from a square wave voltage source?

668

The electromagnetic torque developed is proportional to what in a D.C series motor?

715

Explain different types of Normalization.

587

Write the queries for commands like Create Table, Delete table, Drop Table etc.

602

Share 2 high complexity and 2 low complexity test cases for a coke vending (ATM) machine.

624

Explain 3 high priority test cases for the performance of MSN search engine.

703

Which one has higher efficiency - Diesel Engine or Petrol Engine?

612

Explain the method to keep noises low in a control system?

641

Which motor will you choose which can operate in both lagging as well as leading power factors?

641

What is the converging and diverging passage in supersonic flow known as?

561

Which components are added to petrol in cold regions?

859

State the function of neck ring in centrifugal pump?

639

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HPCL Interview Questions


Un-Answered Questions

How do I show only duplicates in excel?

311


Describe one or two of the most difficult challenges or rejections you?ve faced in the past and how you responded?

3011


How will you add buttons to a template?

1439


What is the primitive type short?

568


What is the difference between a blanket purchase order and the framework order?

744






When will nginit be called? How would you make use of ngoninit()?

436


How can we remove a jsp page from getting cached?

430


send me test pattern of nsn?

1656


What is hard disk health?

471


A company canteen needs an automated system for its food and beverage management. The canteen receives food and beverage items from different distributors. All the non perishable items are stored in the store-room and the perishable items are put in the fridge. The manager should be able to add, delete or update food and beverage items onto the system and perishable and non perishable item details are to be stored separately. Both waiters and the cooks should be able to update the perishable items, but only the cooks should be allowed to update the non perishable items. Both cooks and waiters are not allowed to add or delete any items that are entered. identify the Schema, Table , Fields

2786


What are restrictions on triggers?

1666


Why cascade is used in hibernate?

205


What is wait () and notify () in multithreading?

447


What is ring topology?

196


how much used soil in 1 brick of standard size?

1562