PAPER 8

I.Q-Test, which is on the basis of some figures. What will be the last figure? You have to find the answer

from information of the other fig.

Aptitude Test, which is on the basis of dipartmental

subject (Mechanical). There are 60 questions on

figure. Subject- Gear, Belt Pulley, Different type of

vessel likes cylinder, cone, cube, sphere etc. You

have to find the volume or surface area.

Technical Test- 50 questions, some questions are here.



(EKT)

I.Q test and aptitude tests are same for all departments.

1) Answer: T=W/2sin@

2) In the cast iron, what is the type of carbon?

Ans.: a) graphite b) solid solution etc.

What is the vulcanization of rubber? (addition of sulphur to form cross sulphur bond to remove stickness)

In which case the flywheel will be heavy?

40kw 4 stroke SI engines with rpm 1400.

40kw 2 stroke SI engines with rpm 750.

40kw 4 stroke Diesel engines with rpm 1400.

40kw 2 stroke Diesel engines with rpm 750.

What is the dimension of Young modulus? M L^-1T^-2

A spring has the stiffness of K. If the spring is cut into two parts, then what will be the spring stiffness OF EACH SPRING?

In what case the work done will be zero?

Ans. Constant volume process.

In a vessel there is some gas. The pressure is 3 bar and temperature is 27oC. Now the temperature is increased to 177oC.

What will be the pressure on the vessel if the volume remains constant?

In what case the surface finish will be better?

Honing b) lapping c) grinding d) Reaming

What is the function of the no of the teeth of the milling cutter?

Ans. To get better surface finish.

In what case the speed reduction may be 50:1?

Spur gear b) Worm wheel c) Bevel gear

*Two shafts 1 solid and other hollow. Same outside dia..Hollow shaft inner dia=. 5*outside dia.ratio bet. Torque .......15/16

*vulcanization of rubber is done to

a>increase tensile strength

b>change plasticity to elasticity

*Non-parallel non-intersecting shaft axes what gears are used.

worm gear

*Manganese steel is used in tractor.....abrasive(cold rolling)

*for same compression ratio arrange according to decreasing efficiency the following

Otto dual diesel

*What is the process for preparing blind hole?

a) EDM wire b) leaser ...

*Why pulley crowning is made?

*Zeroth law define what?

*What change occurs in microstructure of steel during Case hardening?

*For which the spindle speed is slow........

Thread cutting

*total heat transfer for const volume process for ideal gas 20kj .the temp of source and sink are 100C and 30 C What is the work

transfer....

1.70kj, 2.0kj .3.40kj.... ans (probably) 0

*Centrifugal pump when started delivery valve is .

1.50%open 2.open 3closed.

*What are the alloying elements of brass....

Ans. Copper and zinc.

*Mixture of water and cutting oil gives...

1.colloid 2>emulsion 3suspention ...................

*Tapper self locking device is used in...

1.twist drill 2.reammer.......

THE PROBABLE SEQUENCE IS

1-A,2-B,4-C,5-C,7-C,8-D,10-E,13-C,14-B,15-B,18-D,19-D,

25-D,34-B,32-D,33-D,17-B,26-A,30-D.





MCC 40minutes 60 easy questions

ans are

1-c,2-b,3-d,4-c,5-a,6-d,7-d,8-c,10-b,11-b,12-c,13-c,14-c16-d,

17-e,18-d,21-b,23-d,24-a,25-b,27-d,28-c,29-b,30-a,31-c,34-c,35-c,37-a,38-b.



sat 40minutes 36 questions

8-pictures for each qustions .8-options for answer

1-5,2-1,3-7,4-4,5-3,6-7,7-6,8-7,9-6,10-4,11-5,12-6,13-2,14-1,15-1,16-4,17-6,18-7,20-8,21-8,22-7,23-6,25-7,38-8,31-8