Mechanical Engineering Interview Questions
Questions Answers Views Company eMail

what is compressor out let pressure siemens v 94.3 a gas turbine ?

2 6545

how many filters at durty side in air intake system in siemens v 94.3a

691

what is the type filter in clean side in ge 9 fa gas turbine ?

759




how many nozzles in gas inlet in siemens v 94.3a

1 3446

how a train take turns though there is no differential gear?

2 12152

which technology use in bikes

TATA,

779

what is the reasson after complition of suction stroke and started compression stroke inlet valve open for few digrees

TATA,

4 3967

which material used in railway track

TATA,

10 15837




Air is a bad conductor of heat.why it becomes hot in summer?

TATA,

5 12244

in power plant lube oil system, if oil mist/vapour eliminator is not running what are all the consequences occur in system?

TATA,

1 2227

What is machine

6 3384

What are the protections required to protect turbine?

NTPC,

4 4523

what is ERW PIPE & Seamless PIPE Out of ERW and Seamless which one gives good results for an impact force of 2700 N??

NTPC,

2 4797

how can calculate how much steam is to be required for generation of 1MW electricty?

NTPC, SVRI,

8 31705

Can we use pure oxygen in IC engines instead of air?? what would be the advantages and disadvantages of using it?? Have any steps been taken about this??

TATA, College School Exams Tests,

5 9494


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Un-Answered Questions { Mechanical Engineering }

dear friends pls explain me what is meant by positive seal in solenoid operated valve

753


tell me about a time you were able to successfully deal with another person even when that individual may not have personally liked you or vice versa.

930


Can anyone suggest me how to learn Computational Fluid Dynamics? (I am just a beginner.)

866


what is an intensifier?

1010


hi gys.. I too want sample papers of hpcl(mech) please help me......plz..... mail me dnaik2006@gmail.com

2335






Dear Friends I want to previous 5-10 years technical and non tech. question paper of section engineer (mechanical)of RRB and also tell me how should I prepare for S.E. and which books will help me for technical,aptitude,resoning.plz send me at bkcs.bkcs@rediffmail.com

634


we use parallel flow heat exchanger to coo oil of 1000 EP viscosity,oftenly tubes may damage during cleaning etc what is proper way to clean cooler? How impurities decreased or vanished during working or in less teme job performed?

637


What are the advantages of white metal?

1050


When mesuring the flow of liquid what are the two things to measure?

149


interview questiions for production planning

1671


can someone explain tolerances on bolts what the symbols mean

797


fan having rotational motion why

1237


2. Dry saturated steam at 3.5 bar is expanded through a convergent nozzle to 2.2 bar. The exit area is 5 sq. cm. Calculate the exit velocity and mass flow rate, assuming isentropic expansion and super saturated flow. b) A cast iron cylinder head is fastened to a cylinder of 750mm bore with 12 stud bolts. The maximum pressure inside the cylinder is 3 Mpa. The stiffness of part is thrice the stiffness of the bolt. What should be the initial tightening load so that the point is leak proof at maximum pressure? Also choose a suitable bolt for the above application 2 The propeller shaft of a marine engine is to transmit 600 kW at 1200 rpm, without a significant bending. The efficiency of the propeller is 88% at 32 knots ( 1 knot = 1085 km/hr). If the slenderness ratio is less than 50 and the permissible shear stress should not exceed 65 Mpa. Determine the diameter of shaft. 3 A semi-elliptic leaf spring consists of two extra full-length leaves and six graduated length leaves, including the master leaf. Each leaf is 7.2 mm thick and 65 mm wide. The centre-to-centre distance between the two eyes is 1.3m. The leaves are pre-stressed in such a way that when the load is maximum, stress induced in all leaves are equal to 380 N/mm sq. Determine the maximum force that the spring can withstand

899


Compare the prandtl numbers of Air, water and Liquid metal. If prandtl number is more what do you understand?

2150


What valves are fitted in a four-stroke diesel engine?

682