TRIBOLOGY EXPECTED QUESTIONS

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EXPECTED QUESTIONS (2010 – 2011)

UNIT – 1
1.       WHAT ARE DIFFERENT TRIBOLOGICAL SYSTEMS? EXPLAIN?
2.       WHAT IS SURFACE TOPOGRAPHY?
3.       WHAT ARE DIFFERENT DETERMINISTIC AND STOCHASTIC TRIBO MODELS FOR ASPERITY CONTACT?
4.       WHAT IS THE QUANTITATIVE LAW OF SLIDING & ROLLING FRICTION?
5.       WHAT IS THE ADHESION THEORY?

                                                             UNIT – 2

1.       DISCUSS THE DIFFERENT TYPES OF WEAR?
2.       WRITE SHORT NOTE ON FOLLOWING?
·         ABRASIVE WEAR
·         FREETING WEAR
·         EFFECT OF HARDNESS ON ABRASIVE WEAR RATE
·         INFLUENCE OF ABRASIVE PARTICLE SIZE ON ABRASIVE WEAR RATE
3.       EXPLAIN QUANTITATIVE LAWS OF ADHESIVE WEAR. DRIVE THE WEAR EQUATION AND HOW DO YOU MEASURE THE ADHESIVE WEAR?
4.       WHAT IS THE MECHANISM OF WEAR AND DISCUSS THE WEAR RESISTANT MATERIAL?
5.       WHAT ARE THE SOURCES OF WEAR? EXPLAIN STICK-SLIP ANDMOLECULAR ATTRACTION THEORY WITH NEAT DIAGRAM?
UNIT – 3
1.       WHAT ARE LUBRICANTS & DISCUSS THE TYPES OF LUBRICATION WITH NEAT SKETCH?
2.       WRITE ABOUT FUNCTIONS OF LUBRICATIONS, THEIR TYPES AND PROPERTIES?
3.       DISCUSS WITH THE HELP OF SKETCHES, EXPLAIN ROLLING CONTACT BEARINGS?
4.       WHAT IS LUBRICANT ADDITIVES?
UNIT – 4
1.       WHAT ARE ANTIFRICTION BEARINGS? DISCUSS THEIR ADVANTAGES & LIMITATIONS?
2.       DERIVE AN EQUATION FOR LOAD CARRIED IN FOOTSTEP BEARINGS?
3.       EXPLAIN IN DETAIL THE CIRCULAR STEP THRUST BEARING AND WRITE DOWN THE PRESSURE DISTRIBUTION EQUATION?
4.       STATE AND PROVE THE PRESSURE EQUATION OF A SHOIT BEARING? WHAT IS THE DIFFERENT BEARING MATERIAL USED? EXPLAIN?
5.       EXPLAIN THE WORKING OF GAS BEARINGS AND POROUS BEARING WITH THE HELP OF DIAGRAM?

1 comment:

  1. DETERMINISTIC AND STOCHASTIC TRIBO MODELS FOR ASPERITY CONTACT
    sir can u please suggest what to write in this question

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