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Polaris Written Test Paper 2013
Posted on :29-01-2016
Q1. What motor is used in ceiling fan & washing m/cs
Q2. In electric traction
Q3. What is 8255 4 8085 has ___ address and ___ data lines
Q4. 8051 is a ____ bit micro controller
ANS: 8 bit
Q5. 74LS244 is _____
Q6. Bucholz relay is used for _____ protection (transformer)
Q7. Transmission line parameters are called ____
Q8. No. of poles and freq given find speed
Q9. In which motor starting torque can be incr by adding rotor resistance
(IM) there were 4 qns from Power plants (had to guess in that) 4 qns from Controls (pretty easy.....like zeta L>1 means.
a) under dampedb) undampedc) over dampedd) critically damped
Q10. Question about transistor basic working
Q11. Boolean expression was given for simplification-simple
Q12. How many flags does 8085 have?
Q13. Which of the following are universal gates?
ANS: nand, nor
Q14. What is the frequency range of mobile communication?
Q15. The resolution of picture in tv depends on..
a. no: of lines scannedb. video detector o/p and 2 more choices were given...
Q16. Question on stability of FET
Q17. What is the modulation used to transmit sound in tv signal
a. VSBb. FM and 2 more choices were there...
Q18. What is double integration of a unit step signal?
a. ramp signalb. parabola
Q19. It mainly covers Operating system..consists of questions in semaphore( 2 questions), job scheduling algorithms (shortest job),paging (2 or 3 questions),virtual memory, hashing, etc virtual memory is used for............
Q20. Rdbms covers Define Query (simple but 4 options made some complications)
Q21. Datastructure : order of randomly searched binary tree
Q22. Electronics based questions which covers microprocessor 80386 (not 8085) 2 or 3 questions
Q23. A pulse is passed through a pipe..to detect any damage..this process is called ..........
Q24. Frequency reflectometry 2) Time reflectometry 3) Piggy backing
Aptitude 1 :
Q1. Given a 3x3 matrix, find the minor of one of the elements
Q2. Find the odd one out of the series 48 47 44 40 3 2 23 12
Q3. A goes to school at 4 kmph and reaches 10 mins
Q4. Schedule and at 3 kmph reaches 10 mins after schedule find thedist
ANS: 4 km 4 Meaning of COY (iritated)
Q5. Opposite of Grimace
Q6. Opposite of FLOODED WITH
Q7. JUMBLED letters find out the word, the word was FATIGUE
Q8. Simple interest problem
Q9. Smallest of four given fractions
Q10. A guy walks 4kmph from a point..After 4hrs a cyclist starts from the same point 10kmph....At what distance will they meet from the starting point?
Q11. X% of people have tea, y% have coffee, z no: of people have both...find the total no: of people...
ANS: easy..have to use n(AUB)=n(A)+n(B)-n(A intersctn B)..
Q12. Complete the series....
1,4 ,9,25,... (choices- 47,49,64,none)
Q13. Analytical question
Failures are stepping stones to success this means...
a. all success are preceded by failuresb. success consists of failuresc. failures can lead to successd. none..
Q14. About matrices.. which of the following do not have inverse?
Q15. There was 1 big square which had 16 squares in it..4 in a row & column each square had a no: in it.. except one square..had 2 find the missing number.
Q16. 4 sentences given & 4 choices of word given...have to choose 1 word that suits all the 4 sentences... the police are ___ about the missing boy in the forest. the detective was ___ her face for marks. and 2 more sentences were there... choices(investigating, searching....).
Q17. HCF of 2 numbers...1024 & 1214...
Q18. Out of 500 students, 75% of boys and 72% of girls passed.Total pass percentage is 77%.How much girls ...?
Q19. How many prime numbers are between 1 to 100?
Q20. A greater than B and B less than C. What is the relation between A and C?
Q21. Given a set of different sentences ...we have to choose an appropriate word which should be matching with all sentences
eg: A person --------------the child
The government---------------the people options may be
2) preserve (this is not the exact question)
Section A - 35 questions (arithmetic)
Section B - 7 questions (analytical)
Section C - 10 questions (VERBAL ANALOGIES).
These are the questions from R.S. Aggarwal arithmetic.(1 to 5).
Q1. Page no: 27 , ex:-15
Q2. Page no:-63, q : 76.
Q3. Page 177 , ex:- 18.
Q4. Page 257, ex :-3 (this model -there is some change in this question., the question is: who will do the work in least time among a, b, c?)
Q5. Page 327 , q:-9.
Q7. Which is the prime number?
a. 119b.115c.127d. none.
Q8. If x is an odd integer, which of the following is even: ( answer for this question is 2(n+1). )
Q9. There are 30 balls, out of which 60% are green balls and the rest are blue balls. how many ways that we can pick the pair of blue balls?
a. 21b. 2c. 2 .d. none
Q10. An officer is getting the salary of S rupees for H days of work, he has taken x days of medical leave, then what is his average salary per day?
Q11. How many 2 digit numbers, which is a square, with last digit as 8?
Q12. One tank will fill in 6 min air the rate of 3cu ft /min , length of tank is 4 ft and the width is 1/2 of length, what is the depth of the tank?
ANS: 3 ft 7.5 inches
Q13. Find the next number in the series 3,4,6,9,13,?
Q14. Which one is the least likely of the other?
a. triangleb. spherec. pyramidd. circle.
Q15. The straight distance between A and C IS 60 miles, the straight distance between A and B is 50 miles. the straight distance between B and C is 50 miles then what is the distance from B to the straight line of A AND C?
ANS: 40 miles
Q16. How many marbles that B has finally?
ANS: 2 (3y-x-z)
Q17. If the total number of marbles are 72, then how many marbles A had initially?
a. 22b. 20c.36d.39
Q18. A is 8 km east of B.B is 10 km north of C C s 13 km east of D, E is 2 km north of D. Then what is the shortest distance between A and E?
a. 5 kmb. 6 kmc. 13 kmd. 18 km
Q19. If the cost price of an item is x rupess,it was sold out after the successive discounts of y% and z%. then what is the selling price of the item?
Q20. Cost price of an item is $50,the price has been increased to 108% ,and after some days it was sold out with the discount of 10%, then what is the sold price of the item?
ANS: $ 48.60
Q21. How many 3 digit numbers are there in between 100 and 300, having 1st and the last digit as 2.
a. 9b.10c. 11d. 12
Q22. If a=26, b=25, c=23...............z=1. Then what is the value of z+y+x+...........+a = ?
Q23. Pipe A will fill the tank in 6hr and B in 4hr, if the pipes are opened alternatively, in which A is opened first, then how many hours it will take to fill the tank?
Q24. A ,B, and C ,went to do mean in a hotel, A has paid 50% more than the amount that B has paid. and c has paid 5/6 of that of A has paid. also B has paid $2 more than that os c has paid. then what is the total amount that all the three paid for their meal?
ANS: $ 30
Q25. Cost price of the item is $2500 ,in the year end it will be 4/5,after 3 yrs, what will be the cost?
This section contains analytical 2 questions-(there are 2 questions in 1st ans 5 questions in 2nd)
Q1. There are 2 marriage groups red and brown, in which no individuals from the same group can marry each other, if a guy marries a gal of any group the guys group becomes that of the gal.The children have the same group as their parents. diversed and widowed guys go to their own birth group. questions are:
A. For girl is in brown group then?
a. Grand father is in red groupb. grand father is in brown group.c. grand mother is in brown group.d. grand father in both the groups.
B. If girl is in red group then?
Q2. A causes B or C but not both D occurs only if B occurs G occurs if E or F or both occurs.