Answer / cs reddy

Bolts are getting loose due to Vibration.
Vibrations may be due to :
a) Misallignment.
b) Improper foundation.
c) Improper Mass Balancing.

Answer / manoj saah

Coupling Misalligment may be major reason.

So do allignment by using Dial Gauge and clearance should
0.05 mm.

Answer / girish

Vibration is a main reason
1. Reduce vibration using vibration isolating mounts
2. use flexble coupling with lock nuts

Answer / rakshit

dumb people .... they have specified 1010 KVA ... which is
very high capacity.... high shear force exists if proper
rated engine is not coupled to generator ,,,, due to high
shear force.. wear in coupling.. wear in coupling... loose
studs... .. also greater vibrations is the cause

Answer / faisalabad

you may use self locking nut as well as suitable grate lock tight according bolts specfication

Answer / pavan

Use lock nuts. Because vibrations are unavoidable (but can
only be minimized), using lock nuts is always safe.

Answer / nagarajan

I Think u can make use of pins in the nuts at specified
tight point of bolt.

How a Diesel Engine Works in Generators?Explain with Labelled Diagram.

2 Answers  

if there is self ignition in petro engines then why is the need of spark plug in petrol engine ???

1 Answers   Velammal Engineering College,

why we transfer FA(full arc) to PA(partial arc) in steam turbine at specified load?

0 Answers  

Is it required to conduct pressure test for fire fighting line

1 Answers   BEC,

What is coaxing ?

0 Answers  

4 stroke engine have how many suctions

1 Answers   Varun Motors,

Dear Sir, I am Shariq Sami. I joined BHEL as a Supervisor Trainee in May 2009 on diploma basis, right now i am an assistant Engineer and posted at Noida. I have completed my bachelor of engineering from Jamia Millia Islami, New Delhi.I am Planning to appear for "BHEL ET" exam this year. I want to know,is there any previous year question papers will be available like we have for GATE exams or you feel it is no need? Can you please guide me? Kind Ragards M.S Sami, Contact No. 9891090742, 9250250988, 0120-2545796

0 Answers   Bhel,

Define heat transfer?

0 Answers  

hi every one, i want to make a coal grinder to mil 3 or 4 tons of coal dust per hour . if you guys help me with photos or some tecnical drawings that would be very kind of you.

0 Answers  

• Would you be willing to relocate if required?

1 Answers   Petro Star Mount,

in a centrifugal pump .. when we close the delivery valve partially .. does this increase the pressure before or after the valve .. and why ??

1 Answers  

Please send me IOCL-GET-Mechanical Sample Question paper/previous year paper or the Guidelines related to the same...i will be very thankful to you. i m going to apper for the written of the IOCL on 6th July,2008 Thank you

0 Answers   IOCL,