# Blue Star Written Test 2011

Posted on :21-03-2016
Blue Star Written Test 2011

Aptitude:

Q1. There are 1200 elephant. Some have blue and pink strips. Some have pink & green strip. 400 elephants have only pink strip. How many have only blue strip?

ANS: 400

Q2. Two persons start from a point and go in opposite directions. After going 3 km they turn left and walk 4 km. How far are they now?

ANS: 10 km

Q3. All men of this party are republican. Mohan is member of this party. Mohan is republican is true or false or can not say?

Q4. Pick the odd one out: bend, shave, chop, whittle, shear.

ANS: bend.

Q5. If circle is one octagon is 2 4 6 8 or 1?

Q6. Complete the series 1 6 3 7 5 8 7---?

ANS: 9

Q7. Add a word in starting of SCAPE and at the end of Grass, you will get two different words.

ANS: land: grassland, landscape

Q8. Add a common word in starting of light, break, time, you will get three different words

ANS: Day: Day light, Day break, Day time.

Technical:

Q9. Non linear structure is

a) Queue & stack
b) tree & graph
c) tree & stack

ANS: b

Q10. Sizeof () operator is used for

a) data type
b) data type & variable
c) both a & b
d) none

ANS: c

Q11. What is the output of the following program?

void main()
{
extern int a;
a=10;
printf(%d,a);
}

a) Give linker error- a not defined
b) Print 10
c) Give compiler error

ANS: a

Q12. socket() is a

a) system call
b) library function
c) both
d) none

ANS: a

Q13. Unix has pipelining formatted &

a) high level
b) low level
c) mid level
d) none of the above

Q14. How can pass an array to a function?

a) desgin(**a)
b) desgin (*a)
c) dasgien(&a[0]);

Q15.
int a[10];
printf(%d,%d,a[0],a[12]);

Will compiler show any error?

ANS: no

a) contiguous memory allocation
b) non contiguous memory allocation
c) both a & b
d) none

Q17. Dewpoint is the temperature at which water vapor will undergo ________?

ANS: Condensation

Q18. Montreal protocol limits the use of _______ ?

ANS: Ozone depleting substance.

Q19. Global warming is due to _______?

ANS: Carbon-mono-oxide

Q20. Rain drop is spherical due to ________ ?

ANS: Surface tension

Q21. For a laminar flow Reynolds flow should be ______?

ANS: Less than 2000

Q22. One ton of refrigeration is equal to_______ ?

ANS: 12000 btu/hr

Q23. What is the refrigerant used in vapour absorption cycle?

Q24. By increasing the intake air temp, efficiency of IC engine will _______ ?

ANS: Decrease

Q25. In a rough turbulent flow in a pipe, the friction factor would depend upon?

ANS: Pipe diameter and pipe condition.

Q26. Degree of saturation is ratio of _______

Q27. In latent heating a substance _________ ?

ANS: Changes phase without increase in temperature

Q28. A pipe friction test shows that, over the range of speeds used for the test, the non-dimensional friction factor f, varies inversely with Reynolds Number. It can be inferred from above that,

ANS: Pipe should be smooth.

Q29. Multiple inheritance cannot be used in a case.......................................?

Q30. What is the difference b/w simple SQDL & Object oriented SQDL?

ANS: No process knows exactly that both are waiting for each other.

Q32. Virtual Destructor is used...........................

Q33. Pressure drop in air duct is influenced by __________ ?

ANS: shape of the duct.

Q34. A parallel flow heat exchanger will perform better than a counter flow heat exchanger. State whether this is true or false.

Q35. The index that normally reflects laminar flow in a tube is ______ ?

ANS: Reynolds number.

Q36. If the NPSH requirements of a pump are not satisfied it will _______ ?

Q37. Approach of a cooling tower is the difference between temperatures of ________ ?

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