why the frequency of natural vibration is always greater than the forcedd vibration.??

2341

Please tell me the difference between EN31 and OHNS material.

9113

Name the types of welding?

1254

What is the furnace Oil viscacity

2151

Explain important rules that must be kept in mind while designing castings?

1052

How oxygen can be removed from steel during melting? What are fully killed steels ?

1167

why we do not megger to motor under system is very high vaccum condition. and what is the tempreture of vaccum conditon

1984

how can u calculate efficiency of one welder in piping work.if we give support staff for his work.

1992

Explain knurling.

1054

What is the difference between air conditioning and refrigeration?

1095

Which is the best option for maintaining water level of Boiler 1)Float type air break switches(well known as Mobry) or 2)DP type transmitter? Please explain in detail !

1757

can anybody tell me whta kind of questions i may face in HPCL interview.(shardulbahuguna@yahoo.co.in).plz rpl.

2245

Fire Engine should be stopped in auto mode or not. If stopped then why and if not then why not?

2517

What is residential silencer and industrial silencer? how can we know by looking only that it is the Residential type silencer.

4885

Wasco Interview 1-the type of transducer that convert mechanical movement into a voltage 2-pump 2500 psi and 100 MG select it 3-modes of heat transfer 4-the difference bet PSIA and PSIG 5-the function of relief valve and no return valve (check valve ) 6-types of bearing general catogires 7-function of bearing 8-compressor surge 9-pump cavitation 10-define critical speed 11-compression ratio decease volumetric ratio ........... 12-using inter-cooling in multi stage compressors to ....... 13-using cascade system in refrigerator function ? 14-define performance and efficiency .

2031