what is surge and how is it prevented, what is the purpose of bypass valve across AS valve.

1972

How microarrays are related to dna?

1039

what is circuit breaker in transfomer and where it used

1185

why dc is used in control circuit for mv & hv switchgear instead of ac

1924

How to check the round duct measurement

1174

WHAT IS THE TECHNICAL SPECIFICATION OF C CURVE & D CURVE LEGRAND MAKE MCB

2664

Net app interview questions ============================ . Storage Fundamentals: - what is Raid? What are different kind of Raids? - Difference between all of Raids , Advantage of one raid over other - What are FCP & ISCSI, Difference between them. - FC Topologies, Iscsi commands - How to mount a Lun on Windows/Linux - NFS and CIFS - Difference between SAN, NAS and DAS - Different Backup methodologies, Snapshot, mirror, Disaster Recovery, High Availability, Cluster concepts 2. Network Fundamentals: - TCP/IP and ISO/OSI layers - What is DHCP, DNS, SNMP, Router, Hub, Switch, HTTPS , HTTP, telnet , ssh, rsh - Different SNMP versions (V1, V2, V3) - SNMP traps - Ipv4 and Ipv6 addressing 3. Database: - SQL queries, Joins (may ask you to write queries with complex joins) - Aggregate functions - Schemas, Tables, views (create, delete, alter, drop etc) 4. Testing - Bug tracking process, Types of Bugs - Difference between priority and Severity of Bug - Your best bug , what will you do when your bug is not fixed/rejected etc. - What is Functionality/Sanity/Stress/Upgrade & revert/Performance/negative/Release test/regression tests. How you have done these in your past projects. - Black box testing, grey box testing - May ask to write test cases on a given scenario - What is test plan and test summary/strategy document. Different sections in these documents. - SDLC, Test Lifecycle and approach to test a product (Given a product what different kind of testing you will do) 5. Perl ( in addition, you may be asked to write scripts on below areas) - Regular expressions - File/Directory Handling - Scalars, Arrays and Hashes - Packages and Modules - Use and require statements - Go through Net::Telnet, Net::SNMP, Net::SSH modules in perl

3022

in an electronic tri vector meter when the current and voltage sequence changes ? what is the effect of phase sequence on recording of meter

2232

What is short cycling in refrigeration system?

2889

I AM FROM ELECTRICAL ENGINEERING ? I AM ASPIRING FOR "BHEL".HOW I HAVE TO PREPARE .ON WHICH TOPICS TO BE CONCENTRATE MORE.PLEASE GIVE FULL DETAILS OF WRITTEN EXAM.

2121

what is motor capacity of 80TR chiller? and also say what is the formula related temperature, motor capacity, TR?

2275

i hav applied for the post of engg. in iocl so please require the past test papers fro instrumentation engg please please help me and send me the papers or tell me the pattern and type of ques asked in examination......

2056

what is circuit recombiner and how it is different from circuit breaker

1885

Hello Guys !! i want to rrb section engineer electrical(signal) previous model papers? any body help me?

1903

In AC if the direction of current keeps reversing every half cycle, how does it propogate through the transmission lines?

2147