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BHEL Placement Papers-Free Download

1. Critical load acting axially on a long column Ans: (pi)2*E*I/L2

2. Relation between moment of area and radius of gyration Ans: I=AK2

3. Cup shaped components are produced using which operation Ans: drawing

4. A sheet of Al alloy having 2mm thickness is welded using which process Ans: TIG

5. Two gears having teeth 18 and 40 and center distance 56?what is the module?

6. In thick cylinders, which of the following is true[*S stands for sigma*] (a) St>Sr (b) St=Sr (c)St

7. In a plane stress condition, if the centre of Mohr?s circle coincides with the origin then which is true? ?.the relation between Sx and Sy is asked

8. Lame?s theorem?.F1/sinA=F2/sinB=F3/sinC

9. Young?s modulus value for steel=200Gpa

10. Thermal conductivity of silver=400w/m0K

11. Fouling factor formula??F.F =1/Udirty-1/Uclean

12. Relation between notch sensitivity factor and theoretical stress concentration factor

13. Effectiveness of heat exchanger definition

14. Reynolds?s number formula

15. Clinical thermometer is which order system ?.0,1,2, or 3

16. Piezometric transducer is used to find which signals?static or?. dynamic

17. Peclet number formula=Re*Pr

18. Radiation energy emitted, Eemitted=S*A*T4

19. Which of the following is not related to CI engine

(a) Fuel pump

(b) carburetor

(c)none

20. Two connected in series having stiffness?s K1, K2 Kequivalent=K1*K2/K1+ K2

21. Magnification factor at resonance, MF=1/2zeta

22. Coroili?s component value, =2vw

23. Hooks law holds good upto

(a)elastic point v (b)UYP

(c)LYP

(d)Failure

24. Meshing of two gears fail if

(a)materials are different

25. A beam whose one end is fixed and other is free is

(a)cantilever

(b)ss

(c)Udl

(d)none

26. Deflection at the free end of cantilever =PL3/3EI

27. Rota meter is used to find

(a)flow

(b)velocity

(c)pressure

(d)density

28. Formula for polar moment of inertia of a hollow shaft

29. Formula for logarithmic decrement

30. Metacentric height is the distance between Metacentre and -------- Ans: Centre of gravity

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