most expected questions in Engg mechanics

MOST EXPECTED QUESTIONS IN ENGG MECHANICS
State and prove perpendicular axis theorem for moment of inertia.
State and prove parallel axis theorem
Derive expression for centroid of triangular area of base (B) and height (H)
State laws of static and dynamic friction
Define the terms centroid and moment of inertia
Define the trems centroid and moment of inertia
Write short notes on
Radius of gyration
Product of inertia
Define angle of friction and angle of repose and prove that fro limiting condition both are equal.
Prepare numericals for CG and MI, for shapes as asked in las year’s papers.

Discuss advantages of method of sections for analysis of trusses. Write steps for solving trusses by method of sections.
What is meant by principle of virtual work.
State Assumptions made in analysis of a plane truss

Explain
Law of machine
Self locking machine
Velocity ratio
Explain with sketches simple and compound gear trains
Define and differentiate between initial tension and centrifugal tension in a belt drive
Find condition of irreversibility of a machine
Enumerate merits of rope drive over belt drive
Enumerate the advantages of gear drives over belt and rope drives
Explain the law of machine
Prove that the condition for self locking machine is that its efficiency is less than 50%
Prepare numericals for Belt drive, all types as asked in lasy year’s papers ( keep special watch on unit conversions and formulas to be used)
Prove relation ship T1/T2 = eμθ

Deduce relationship between SF and BM.
Prepare BM and SF numericals specially for Overhang cases and simply supported cases

State and explain principle of moments
Same material is also available on http://www.studypages.blogspot.com/State and prove Varignon’s theorem. Explain its application in non concurrent forces

BCE practical Viva Questions

Expected Common Questions for Viva BCE Practical Exam:

What is basic principle of chain surveying.
What is the purpose of providing metal tags at different places in a chain.
What is ranging. Why is it done.
What are perpendicular offsets.
What are oblique offsets.
Name the different types of magnetic compass.
What is difference between Prismatic and Surveyor’s compass.
What is Whole circle bearing system, what is the max. value of bearing in WCB.
What is Quadrantal or reduced bearing, what is the max. value of bearing in QB.
What is local attraction.
What should be difference between Fore bearing and back bearing.
What is the least count of a leveling scale.
Show various parts of a dumpy level in the diagram.
What are temporary adjustments in dumpy level.
What is difference between “HI” method and “Rise and fall” method of leveling.
Which method is faster between the two.
Which method has lesser chances of errors between the two.
What is difference between Dumpy level and Theodolite
What are the temporary adjustments of theodolite.
Explain the figure in notebook showing scheme of finding height of building using trigonometric leveling.
Can a theodolite be used as a dumpy level, If yes what adjustment has to be done before using it as dumpy level.
What are advantages of plane table survey over normally used other survey techniques.
What are disadvantages of plane table survey over normally used other survey techniques.
What is the use of alidade in plane tabling
What is orientation of plane table.
In which type of areas do we apply radiation method.
In which type of areas do we apply intersection method.
What is bulking of sand
Explain the mechanism of sand bulking
What is the relationship of bulking with particle size of sand.
What is concrete
What is workability of concrete
How is workability of concrete measured in field.
What should be the normal value of slump for concrete in general use.
What is use of Vicat’s apparatus
What is Initial setting time of cement
What is final setting time of cement
What are the limits as per IS code for IST and FST of OPC.
What are the different types of cement available in market.
What are the general IS codes used for Civil engineering purpose.
Best of luck - Sanjay Saini