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Mechanical Engineering Interview Questions
Questions Answers Views Company eMail

why Flywheel is used (Need technical answer)? why generally flywheel is big in shape?

Ford, HCL,

8 20670

what is the equvalent indian material code for EN10025/2- S75JR

Apollo,

1940

how much axis is in CNC machine?

Delphi, Escorts, Telco, TVS,

7 6465

HOW WOULD YOU FIND THE EXACT NUMBER OF WHITE MARUTI CARS IN MUMBAI???

HCL, Zycus Infotech,

2 10315

What's the difference between absolute vibration & relevant vibration regarding Boiler Feedwater Pump ?

1011

if u r sailing on aboat with ur boss n a customer n d boat is sinking whom wud u save if u had only one choice to save betn boss n the customer???why???

3 2766

what is the effect of throttle pressure on turbine efficiency?

1058

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

1200

what is meant by FA(full arc)& PA(partial arc)?

1 2578

what are normal TSI(turbine supervisory instrument)when at turbine at full load & when turbine on turning gear?

1 4408

what do u understand by the term "Rotor Long" and "Rotor short"?

3 9686

What is called governor in gas turbines?

GE,

2 3529

Why shaft eccentricity is not monitored in gas turbines?

GE,

2 8849

Why stop ratio valve is necessary before gas control valve in GE gas turbines.

GE,

1 6296

what does Eccentricity indicate?

CLP India, IBM, Jhajjar Power Plant, NTPC,

2 5784


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Un-Answered Questions { Mechanical Engineering }

If you are scientist to b e and you wish to develop a self-generating power appliances, what would b e the ranking of importance to apply your concept of creating energy using alternator: 1. Washing Machine 2. Motor Water Pump 3. Electric Fan 4. Electric Stove 5. Flat Iron – Which one will b e your foremost and the least at the rank of 1 to 5? Why is that so? Defend your answer.

749


Low water in boiler drum is unsafe because it may result in overheating of water tubes in furnace. Why it is unsafe to have high water condition in boiler drum ?

196


How do you calculate cooling energy?

195


Enumerate the cause of pumps low delivery of water

1115


What is meant by effectiveness?

179






what type of questions will be there in the written paper of tata motors ?

1235


How do you convert feet into square feet?

178


If percentage elongation of a material is more than 200%, it is classed as ?

230


What are the causes of dirty lubricating oil?

1117


What causes turbocharger surging?

1721


A fan is handling hot air at 285 degC with flow of 411635 m3/hr, power consumed is 1165kW and efficiency is 66%. what will happen to flow, power and efficiency of the fan if a water spray system is introduced to reduce the air temperature up to 200 degC? (also please refer any document regarding this)

1071


please send me previous placement papers of cummins company

1441


Greetings This question is about hydraulics and I request an expert to answer it. A simple hydraulic machine is made up of two heads, a larger one with a larger force inside a wider pipe and a smaller one with a smaller force inside a smaller pipe in width as in the second picture on this link: http://science.howstuffworks.com/hydraulic1.htm The question is this: what happens if the smaller head and the smaller force doesn’t exist but the smaller pipe is high enough to take all the liquid? For example the larger head is 1.00 sqr metre and can go down 1.00m under a weight of 100.00kg. The cross sectional area of the smaller pipe is 0.001 sqr metre. Now when the larger head goes down 1.00m, how high the liquid from the wider pipe can go into the smaller pipe of the cross sectional area of 0.001 sqr metre? Regards

1135


Name two vital conditions of a perfect gas.

186


increase in unit speed increases the discharge of impulse turbine how?

2760