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Home » Placement Papers » Bosch Placement Papers » Bosch Placement Paper 9

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Bosch Placement Paper 9

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Bosch Sample Question Pattern

1. Critical stress at which material will start to
flow
(a)yield
(b)ultimate tensile stress
(c) proof stress
(d) none o the above

2. maximum degree of freedom in space
Ans. 6

3. bearing which will take axial and radial loads.
(a) thrust bearing
(b) deep groove
(c) taper roller
(d) ---

4. volume of water per cubic metre of air.
(a)specific volume
(b) specific gravity
(c) vapour pressure
(d) none of above

5. fluid is flowing through a frustum of cone. what is
the nature of graph of velocity
Vs. c/s area. {flow = velocity X c/s area}
(a) parabola
(b) hyperbola
(c) y=mx+c
(d) x=x.

6. Fluid in a pipe having no change in profile with
change in length of pipe ...explain type of flow.
a)Laminar
b)Turbulent
c)fully developed profile <ans>
d)steady flow

7. Which are correct

I) Navier Stokes Eq. is .... of momentum
conservation eq.
II)bernoulis eq. is for viscous flow
III) REYNOLD no. >3000 always for turbulent flow.

a)I and II correct
b)I and II not correct
c)II and III correct
d)II and III not correct

8. Which can't be removed during alloying from Fe
alloys
a) co
b) N
c) Si
d) As

9.There are two ropes burning non uniformly (rate) and
clock half an hour each. which can't be clocked ?
a) 1 Hr.
b) 45 min
c)15 min
d)none

10. Lim n->0 (1+ 1/n)^n =
a) 1
b)0
c)e
d)infinity

11.time dependent increase in length at steady temp.
is called
a) superplasticity
b) creep
c) fatigue
d) none

12. Vicosity change with increasing temp.
a) decreases
b) increases
c) same
d) first decreases and then increases.

13. Direction of friction in bicycle tyres
a) along motion
b) opp. motion
c) Front opp. motion and vice versa
d) rear opp. motion and vice versa

14. Sp. gravity of a fluid
a) density of fluid at 0`c / density of water at o`c.
b) density of fluid at 0`c / density of water at T`c.
c) density of fluid at T`c / density of water at o`c.
d) density of fluid at T`c / density of water at T`c.

15. lateral strain / longitudinal strain
a) Poission's Ratio
b) Bulk Modulus
c) Modulus Of Elasticity
d) None

16. 10 coins & 1 defected coin and 2 weighs Find min
weighs req. to detect faulty coin
a) 2
b)3
c)4
d)5

17. 9 members in meeting scheluled at 10:00 A.M. , all
reaches at 9:48 A.M. . one member req. 2 min to intro
with other
find meeting delay with scheduled time of 10:00 A.M..
a) 1 Hr.
b) 6 min
c) ...
d)At scheduled time

18. A completes job in 10 hr. and B completes in 15
hr.. Find when both together works
a) 6 hr.
b) 8 hr
c) 10 hr
d) none

19. A ball dropped from H height and moves 80% of
height each time.Total dist. covered
a) 4H
b) 5H
c) 7H
d) 9H

20. A cantilever beam loaded at free end find
reinforcement place
a) AT neutral axis
b) above neutral axis
c) below neutral axis
d) above and below neutral axis

21. punching a sheet of D dia and T thickness and S
ultimate tensile stress
a) 3.14 DTS
b) 3.14TS X D^2
c) 6.28 DTS
d)6.28 TS x D^2

22. & 23. two easy ques. of string mass equilibrium
system...

24. Microstructure after quenching
a) Mertensite
b) pearlite
c) ........
d)..........

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