January 16, 2015

Tips for A Better Life



1. Take a 10-30 minutes walk every day. And while you walk, smile.
2. Sit in silence for at least 10 minutes each day.
3. Sleep for 7 hours.
4. Live with the 3 E's -- Energy, Enthusiasm, and Empathy.
5. Play more games.
6. Read more books than you did in 2007.
7. Make time to practice meditation, yoga, and prayer. They provide us with daily fuel for our busy lives.
8. Spend time with people over the age of 70 & under the age of 6.
9. Dream more while you are awake.
10. Eat more foods that grow on trees and plants and eat less food that is manufactured in plants.
11. Drink plenty of water.
12. Try to make at least three people smile each day.
13. Don't waste your precious energy on gossip.
14. Forget issues of the past. Don't remind your partner with his/her mistakes of the past. That will ruin your present happiness.
15. Don't have negative thoughts or things you cannot control. Instead invest your energy in the positive present moment.
16. Realize that life is a school and you are here to learn. Problems are simply part of the curriculum that appear and fade away like algebra class but the lessons you learn will last a lifetime.
17. Eat breakfast like a king, lunch like a prince and dinner like a beggar.
18. Smile and laugh more.
19. Life is too short to waste time hating anyone. Don't hate others.
20. Don't take yourself so seriously. No one else does.
21. You don't have to win every argument. Agree to disagree.
22. Make peace with your past so it won't spoil the present.
23. Don't compare your life to others'. You have no idea what their journey is all about. Don't compare your partner with others.
24. No one is in charge of your happiness except you.
25. Forgive everyone for everything.
26. What other people think of you is none of your business.
27. GOD heals everything.
28. However good or bad a situation is, it will change.
29. Your job won't take care of you when you are sick. Your friends will. Stay in touch.
30. Get rid of anything that isn't useful, beautiful or joyful.
31. Envy is a waste of time. You already have all you need.
32. The best is yet to come.
33. No matter how you feel, get up, dress up and show up.
34. Do the right thing!
35. Call your family often.
36. Your Inner most is always happy. So, be happy.
37. Each day give something good to others.
38.  Don't over do.  Keep your limits.
39. When you awake alive in the morning, thank GOD for it.
40. Find Opportunities in Difficulty rather Difficulties in Opportunity.

February 9, 2014

MECHANICAL ENGINEERING JOB INTERVIEW QUESTIONS

1.) What do you understand by acoustic velocity ?

Ans: Accoustic velocity is the speed of a small pressure (sound) wave in a fluid.

2.)Explain difference between cohesion, adhesion and capillarity ?

Ans: Cohesion is the attraction of like molecules.
Adhesion is the attraction of unlike molecules for each other.
Capillarity is the elevation or depression of a liquid surface in contact with a solid.

3.)What is bulk modulus of elasticity ?

Ans: It represents the compressibility of a fluid. It is the ratio of the change in unit pressure to the corresponding volume change per unit of volume.

4.)What is is entropic exponent ?
Ans: It is the ratio of the specific heat of a gas at constant pressure to the specific heat at constant volume.

MECHANICAL ENGINEERING JOB INTERVIEW QUESTIONS

1.What is critical temperature in metals ?

Ans: It is the temperature at which the phase change occurs in metals.

2.What is coaxing ?

Ans: It is the process of improving fatigue properties by first under-stressing and then increasing the stress in small increments.

3.What is the difference between basic hole and basic shaft ?

Ans: A basic hole is one whose lower deviation is zero and in case of basic shaft the upper deviation is zero

Factors Affecting Detonation In IC Engine

Factors Affecting Detonation In Internal Combustion Engine:

In an internal combustion engine cylinder sometime sudden and violent knocks are experienced, this is known as "Detonation". This knock is set up by a high pressure wave giving loud pulsating noise as it strikes against cylinder walls, cylinder head and piston.

Following are the main factors, which affects detonation:-

01) The fuel used in internal combustion engine will considerably effects on the chances of detonation. Alcohol and benzol do not cause detonation but it can not be use due its low calorific value and other objections to use as fuel. Again alcohol cannot blend with petrol in the presence of water.

02) The detonation is also promoted by increase in compression ratio. The compression ratio at which detonation just occurs is known as the Highest Useful Compression Ratio. Higher the compression ratio higher the chances of detonation and lower the output.

03) If the carbon deposits are in the cylinder and used excessive sparking temperature, the detonation will increased rapidly.

MECHANICAL ENGINEERING JOB INTERVIEW QUESTIONS

1.) What is the direction of tangential acceleration ?

Ans:The direction of tangential acceleration may be same or opposite to that of angular velocity.

2.)Why excess air is required to burn a fuel completely ?

Ans: Excess air is required to ensure adequate mixing of fuel and air, avoid smoke, minimize slagging in coal burning, and to ensure maximum steam output.

3.)Which type of plant will you recommend for remote location if power is required in six to twelve months time ?

Ans: Diesel engine power plant.

4.)What do you understand by forced convection ?

Ans: When convection heat transfer occurs between a solid body and a fluid and where circulation of fluid is caused and controlled by some mechanical.