Engineering Interview Questions
Questions Answers Views Company eMail

what are the different types and applications of compressors?

1 2775

compressor compresses air means exactly what happens?

2 3818

can we individually produce electriciyt

1 2782

what is the defination of 'Mass' & 'Weight'

3 7582

ratio of sand, cement and metal in all concrete mix

2 6560

how many types of foundation

Synergy,

6 17612

Dear Friends, I have a 500KVA transformer supplying whole factory having 3 phase and single phase mixed loads. Power room has ammeters connected via CTs for individual phase. Now I know that readings shown on meter for each phase say R,Y and B are line currents. But when I want to know the total on transformer do I need to add the currents of all three phases readings shown on meter or value for anyone phase will give me the correct power load on transformer for that point of time. 2. If ammeter shows unbalanced readings for R,Y, B phases say 150, 250 and 300 respectively so can I assume that 150A i.e average of 3 will be the 3phase load currents and remaining will be 1phase currents. Please clarify my doubt.

4 6281

Respected Sir, I am from a hilly place called Darjeeling ,I have constructed house of 9 column out of which 4 of the column is under water , i have put rcc slab on top and on top of the rcc slab i have construced two room house with bricks and light roof , now i am planning to change the light roof with rcc slab for the two room, my main concern is will the column under water will hold the load of the new rcc slab coz it already 10 to 12 yrs old , i dont know what to do , can u advice me regarding this matter, weather to leave the upper floor roof light or make it rcc slab.(If i put the slab , it will require 45bags of cement and u calculate how much of steel and sand and pebbles) thanks with regard Anand

2 4278

what is the maximum load in MDB,SMDB and DB

1 9635

how to wiring 20 hp motor get completated?

Alchemist,

1 3626

what is the difference bitween adsl and dsl

1 6717

wich type of cable is selected for wiring of 20hp motor?

Alchemist,

5 8425

give me list of material for wiring of 20hp motor?

Alchemist,

2 4447

What are the various types of BUSBAR Schemes? explain each

NTPC,

1 4588

WHY WE USE {} AT THE STARTING OF C PROGRAM

1502


Un-Answered Questions { Engineering }

As you achieve greater success with the company after some years, Will you like to be a share holder in our company?

3015


If the tractive effort is the highest for a given velocity, then the vehicle must be in a) Top gear b) Third gear c) Second gear d) First gear

1515


What is reactive power and where it is used.

1200


What do you mean by a voltage transformer?

691


What is deference between MCB & MCCB & ISOLATOR

1479






Fantio of tranformer

1751


Can you explain about Restricited earth fault protection scheme

1412


Is a d.c.compound motor is use as a booster? how?

1663


protection relay watchdog contact operation?

1572


Which material is used for the core of a transformer and why?

611


what is reconfiguration of E1

1827


Why dtsi is used in motor bikes?

665


y the range of char is between -128 to 127 only????

1307


If mutual flux is 1.2wb & power factor is 0.8 lag , then what is the Useful flux of a transformer?

3969


what is the criteria for selecting fuse rating in 1phase, 2phase & 3phase welding sets?

1357