Just Crack Interview

Mechanical interview questions – page 3

226 questions. Tap “Show answer” to check yourself.

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  1. Which bearing use in lathe spindle

  2. What is heat rate of a power plant?

  3. The fatigue life of a part can be improved by ?

  4. On what property u can distinguish material as brittle or ductile?

  5. Why would an Engineer consider combining FEEDBACK and FEEDFORWARD control in some applications?

  6. WHY DOES LORRY TANKERS DESINGNED TO BE INSPHERICAL(CURVED,ROUND), WHY DOESNOT IT DESIGNED TO BE ASSQUARE OR REACTANGLE IN SHAPE.

  7. What are the steps taken in troubleshooting of a machine e.g extruder

  8. What is volumatric air change of a HOT GAS GENERATOR of a STEAM BOILER ?

  9. Explain bearing nomenclature with example.

  10. What is the differance between Horizental and vertical heat exchanger?

  11. DIFFERENCE BETWEEN CODES,STANDARDS & SPECIFIFCATIONS?

  12. What is the density of steel

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  14. Why pegging is required for deaerator in power plant nd why maintain the constant pressure in deaerator 3.5 kg/cm2.

  15. How much binding wire is required for one tone steel

  16. How to calculate bearing pre-load?

  17. What is the difference between the air preheater & air blower?

  18. How air cylinder cfm calcualted.suppose cylinder bore-40mm and stroke 70mm operating pressure 6bar calculate air cylinder cfm.

  19. What is the purpose of actuator

  20. How to caluculate moment of inertia of a hollow cylinderabout its axis?

  21. Diff between dead wt calibrator n pressue comparator?

  22. How to use level tranasmitter in closed tank application.?

  23. what is the basic concept of mechanical maintenance

  24. In what cycle steam power plant is based

  25. What is loop or pigtail in an impulse line?

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  27. How to isolate a DPT from line in the condition that processmust not be disturbed,and process is also critical and nobypass is available.?

  28. STRESS PRODUCE STARIN OR STRAIN PRODUCE STRESS.....?EXPLAIN?

  29. What to do in emergency situation of having total blackout(on a ship

  30. What is the difference between current rating and breaking current of an MCCB? and for a known load how to calculate the current rating of a MCCB?

  31. What is solenoid valve?

  32. What is the use of fudicial indicator in measurement?

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