Wilco Placement Paper -: Quantitative and Analytical Reasoning Questions And Answers

Wilco Previous Years Solved Sample Placement Papers

1. Which one of the following can produce the final product of machine processing in a form usable by humans?

   A) storage

   B) control

   C) input device

   D) output device (Ans)

2. The term 'memory' applies to which one of the following?

   A) logic

   B) storage (Ans)

   C) input device

   D) output device

3. A program written in machine language is called a ______ program.

   A) object (Ans)

   B) computer

   C) assembler

   D) high level

4. A source program is the program written in ______ language.

   A) English

   B) symbolic

   C) high level (Ans)

   D) object

5. Which one of the following data structures is preferred in database-system implementation?

   • a) AVL tree
   • b) B-tree
   • c) B+ -tree (Ans)
   • d) Splay tree

   Explanation: The database-system implementations use the B+ -tree data structure because they can be used for multilevel indexing.

6. What is an AVL tree?

   • a) a tree which is balanced and is a height balanced tree (Ans)
   • b) a tree which is unbalanced and is a height balanced tree
   • c) a tree with three children
   • d) a tree with at most 3 children

   Explanation: It is a self-balancing tree with a height difference of at most 1.

7. Sporadic:

   A) Epidemic

   B) Whirling

   C) Occasional (Ans)

   D) Stagnant

8. Compendium:

   A) Summary

   B) Index

   C) Reference

   D) Collection (Ans)

9. As the forward current through a silicon diode increases, the internal resistance:
   

   A) Increases

   B) Decreases

   C) Remains the same

   Ans: C
10. What occurs when a conduction-band electron loses energy and falls back into a hole in the valence band?
    

    A) Doping

    B) Recombination

    C) Generation

    Ans: B
11. What is the voltage measured from the negative terminal of C4 to the negative terminal of the transformer?
    

    A) –10 V

    B) –20 V

    C) 10 V

    D) 20 V

    Ans: B
12. Calculate the output of the second stage op-amp if V1 = 25 mV:
    

    A) –0.075 V

    B) 0.525 V

    C) 0.06 V

    D) 4.2 V

    Ans: A
13. 'There were 5 questions from data sufficiency. Example:
    Statement: A number is divisible by 12.
    Data: (1) It is divisible by 3.
    (2) It is divisible by 4.
    A. Data (1) alone sufficient.
    B. Data (2) alone sufficient.
    C. Both (1) and (2) are required.'
    

    Ans: C. Both (1) and (2) are required

14. 'In an auditorium (or an airplane), each row had 2 double seats and 3 single seats. If there are r number of rows, what is the total number of seats?'
    

    Ans: n = (2*2r + 3r)

15. 'In a classroom, there are x girls and y boys. What part of the class are girls?'
    

    Ans: x / (x + y)

16. 'When will you get the maximum value for x if it lies between 0 to 1?'
    

    Ans: 1/x