Placement Papers: STMicroelectronics Placement Paper Aptitude
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Which of the following no. Can be represented w/o any error using IEEE format (64 bits1 bit sign bit, exponent 7, mantissa 56)

2

4

5

none


CRC polynomial is given. Message is given. Find the message to be transmitted.

what r the gates used in half adder.

Simplify a Boolean equation (Karnaugh map is used to solve)

which of the devices can be used as latch?

JK F/F

SR latch

Data F/F

T F/F


the probability of the message coming out of a source is ½ ¼ ⅛ ⅛ What is the information content in the message?

6/5

7/4

1

none


How many page faults r required for swapping given pages using LRU algo. For a frame size of 3.

The time of exec. Of 4 processes P1 − P4 r given using Round robin (1 sec) method find the time taken for P4 to finish?

main () { fork (); fork (); fork () } How many processes are created?

a. While (; ) b. While (; ) { sleep (); }

which of the following is true?

execution time of a is more than b

execution time of b is more than a

similarly 2 more options r given.


mov sp, addr call addr pop sp what is the value stored in sp and hl?

Y catches 5 times more fishes than X. If total number of fishes caught by X and Y is 48, then number of fishes caught by X? Ans: 8

Y catches 5 times more fishes than X. If total number of fishes caught by X and Y is 42, then number of fishes caught by X? Ans: 7

If a train covers 600m in 0.5 seconds, how long it will cover in 10 seconds? Ans: 3000m = 3km

The girl's age is twice that of boy, if the boy is four years old. After four years the age of the girl is Ans: 12 years

Sister's age is twice than that of the brother. If the brother's age is six, what is the sister's age after two years? Ans: 14 Yrs.

Two lemons cost 10 cents. Then one and a half dozen cost Ans: 90 cents

A clock is late by 1 minute 27 seconds in a month. Then how much will it be late in 1 day? Ans: 2.9 seconds

Which of the following figures together will make a triangle? Ans: a, b, c, d

Make a square by drawing only one line Ans: Line 2 − 5, square 2 − 3 − 4 − 5 − 2

Which of the following is the odd one? crew, constellation, companion, league, participants. Ans: Companion

Opposite of Remote?

Far

Near

Huge

Village


Statement A: All great men are ridiculous; Statement B: I am ridiculous; Inference: I am a great man

True

False

Not clear


Statement: Normal children are active; Inference: All children are active

True

False

Uncertain


Next number in the series 1, ½ ¼ ⅛ Ans: 1/16

In 6 seconds a light flashes once. In one hour how many times it will flash? Ans: 601 times

At 20% discount, a cycle is sold at a selling price of 2500 Rs. What is the actual price? Ans: Rs. 3125

Statement A: A & B have same age; Statement B: B is younger than C; Inference: A is younger than C

True

False

Uncertain


All chickens lay eggs (True/False) Ans: False

A invests $12000, B invests $8000, C invests $6000 and they got a profit of $1200. How much share A got more than B and C?
Ans: 2/13 and 3/13