OPSC ASO PREVIOUS YEAR QUESTION PAPER : REASONING & MENTAL ABILITY

Board Name: Odisha Public Service Commission (OPSC)

Post Name: Asst. Section Officer - 2012 - 13 
Subject : Test of Reasoning & Mental Ability
Time: 1 Hours

Total Questions: 50

Full Marks: 100

Each Question Carries: 2 Marks

Exam Year: 2015

OPSC ASO Exam Syllabus :-

SL. No.	Subject	Marks
1.	English	100
2.	Mathematics	100
3	Essay
	1. English within 350 words	025
	2. Odia within 350 words	025
4.	General Awareness	100
5.	Test of Reasoning/ Mental Ability	100
6.	Computer Application
	Theory	100
	2. Skill Test in Computer (practical)	50
	Total	600

OPSC Asst. Section Officer Previous Year Question Paper:

Direction (Q. Nos. 1 & 2) : Choose a correct sequence of ascending order of magnitude.

1. 2¹², 3⁸, 4⁷, 10³ :

1. 2¹², 3⁸, 10³, 4⁷
2. 10³, 2¹², 4⁷, 3⁸
3. 10³, 2¹², 3⁸, 4⁷
4. 10³, 4⁷, 2¹², 3⁸
Ans: (3)



2. Trillion, Million, Billion, Thousand :

1. Trillion,Thousand, Billion, Million
2. Trillion, Million, Billion, Thousand
3. Thousand, Billion, Million, Trillion
4. Thousand, Million, Billion, Trillion
Ans: (4)

Direction (Q. Nos 3 & 4) : In each of the following number series, a wrong number is given. Find out the wrong number. 

3. 2, 6, 12, 18, 30, 42

1. 6
2. 12
3. 18
4. 30
Ans: (3)



4. 2, 3, 5, 7, 9, 11, 13, 17, 19 :

1. 2
2. 9
3. 11
4. 19
Ans: (2)



5. In the series : 861238742157862171413286 how many pairs of successive numbers have a difference of 2 each ?

1. 3
2. 4
3. 5
4. 6
Ans: (4)



6. Lata ranked eighth from the top and thirty ninth from the bottom in a class. How many students are there in a class ?

1. 45
2. 46
3. 47
4. 48
Ans: (2)

Direction (Q. Nos. 7 to 9) : Which of these jumbled words is the odd one out ?

7. Which of these jumbled words is the odd one out ?

1. FARFIGE
2. CWOR
3. CIENCKH
4. CHTOSIR
Ans: (1)

8. Which of these jumbled words is the odd one out ?

1. ART
2. TAC
3. GOD
4. TOH
Ans: (4)

9. Which of these jumbled words is the odd one out ?

1. EHOSU
2. EMEPLT
3. QUOMSE
4. HURHCC
Ans: (1)

Direction (Q. Nos. 10 to 11) : Six persons A, B, C, D, E, F are sitting around a circular table at equal distance from each other. A is sitting two place right of B who is exactly opposite to C. C is on immediately to the left of D, who is exactly opposite to E.

10. Who is the only person sitting between A and B ?

1. F
2. E
3. D
4. C
Ans: (2)





11. The angle subtended by C and F at the centre of the table is :

1. 60^o
2. 120^o
3. 90^o
4. 180^o
Ans: (2)



12. Lata is twice as old as Gita. Three years ago, she was three times as old as Gita. How old Lata is now ?

1. 6 years
2. 8 years
3. 10 years
4. 12 years
Ans: (4)



13. A man is facing north-west. He turns 90^o in the clockwise direction and then 135^o in the anticlockwise direction. Which direction is he facing now ?

1. North
2. South
3. East
4. West
Ans: (4)



14. How many such pairs of letters are there in the word 'ENTHUSIASTIC' each of which has as many letters between them in the word as there are between them in English alphabet ?

1. 3
2. 4
3. 5
4. None of the above
Ans: (1)

Direction (Q. Nos. 15 & 16) : Study the following arrangement carefully and answer the questions give below.

I T # A J 7 B $ D 2 K ⧭ E L 5 H P E %

15. How many such symbols are there in the above arrangement, each of which is immediately followed by a vowel and not immediately preceded by a number ?

1. 1
2. 2
3. 3
4. 4
Ans: (2)



16. How many such numbers are there in the above arrangement, each of which is immediately preceded by a letter and immediately followed by a symbol ?

1. None
2. One
3. Two
4. Three
Ans: (1)

Direction (Q. Nos. 17 & 18) : Each question below has a set of two statements. Each statement has three segments. Choose the alternative where the third segment in a statement can be logically deduced using both the preceding two segments.

17. (i) Some boys are tall ; all tall persons are smart; some boys are smart. (ii) Some boys are tall; some boys are smart; boys are either tall or smart.

1. Only (i)
2. Only (ii)
3. Neither (i) nor (ii)
4. None of the above
Ans: (1)



18. (i) All coins are crows ; some crows are pens, no pen is coin. (ii) All coins are crows ; some crows are pens ; some coins are pens.

1. Only (i)
2. Only (ii)
3. Neither (i) nor (ii)
4. Both (i) and (ii)
Ans: (3)

Direction (Q. Nos. 19 & 20) : From a group of 5 Ministers A, B, C, D, E and 4 Officers L, M, N, O a team of 5 member is chosen under the following conditions.

(i) C cannot go with O
(ii) A and D have to be together
(iii) D cannot go with L
(iv) C and M have to be together
(v) B and N have to be together
(vi) B cannot go with E

19. If the team consists of 3 Officers, then the members of the team are :

1. LMNBC
2. MNOAD
3. LMNBD
4. LMOAE
Ans: (1)



20. If D is a member of the team and the team consists of 4 Ministers, then the other members of the team are :

1. ABCM
2. ACEN
3. ACEM
4. None of the above
Ans: (3)

Direction (Q. Nos. 21 to 25): There is a certain relationship between the two words on the left hand side of the sign ::, which of the given alternatives is related to the third word in the same way as the second word is related to the first word ?

21. Potato : Stem : : Turnip : ?

1. Flower
2. Vegetable
3. Root
4. None of the above
Ans: (3)



22. Element : Argon : : Compound : ?

1. Copper
2. Water
3. Hydrogen
4. Neon
Ans: (2)



23. Resistance : Ohm : : Potential : ?

1. Ampere
2. Joule
3. Volts
4. Watts
Ans: (3)



24. Hostel : Warden : : Museum : ?

1. Archaeologist
2. Conductor
3. Curator
4. Servant
Ans: (3)



25. Cat : Kitten : : Lion : ?

1. Cub
2. Calf
3. Pony
4. Lamb
Ans: (1)



26. In a correctly worked out multiplication problem below, each letter represents a different digit. What is the value of X ?

1. 3
2. 4
3. 5
4. 6
Ans: (2)



27. In a certain language, if BHUBANESWAR is coded as CIVCBOFTXBS, how is CUTTACK coded ?

1. DWXXBDI
2. DUUVBDL
3. DVUUBDL
4. BVUUBDL
Ans: (3)

Direction (Q. Nos. 28 to 30) : Refer to the figure below and answer the questions that follow.

28. How many triangles are there in the given figure ? 

1. 12
2. 16
3. 20
4. 32
Ans: (4)



29. How many squares are there in the given figure ?

1. 6
2. 8
3. 10
4. 12
Ans: (3)



30. Determine the number of straight lines in the figure :

1. 10
2. 12
3. 14
4. 16
Ans: (2)

Direction (Q. Nos. 31 to 34) : In each of the questions given below which one of the four answer figures should come after the problem figures, if the sequence were continued ?

Ans: (3)

Ans: (2)

Ans: (4)

Ans: (3)

Direction (Q. Nos. 35 to 38) : Choose the correct mirror image of the problem figure when the mirror is placed in R-S position.

Ans: (1)

Ans: (2)

Ans: (4)

Ans: 2)



39. The total number of dots on opposite faces of a die is always 7. Find the correct figure from the given alternatives.

Ans: (1)



40. Two positions of a die with 1 to 6 dots on its faces are shown below. How many dots are there on the face opposite the face having 2 dots ?

1. 1
2. 3
3. 4
4. 6
Ans: (2)



41. How many dots lie opposite the face having three dots, when the given figure is folded to form a cube ?

1. 2
2. 4
3. 5
4. 6
Ans: (4)

Direction (Q. Nos. 42 to 45) : A cube is painted black on all six faces is cut into 27 small cubes of equal sizes. 

42. How many small cubes have only one face painted ?

1. 4
2. 6
3. 8
4. 12
Ans: (2)



43. How many small cubes have only two faces painted ? 

1. 4
2. 6
3. 8
4. 12
Ans: (4)



44. How many small cubes have only three faces painted ?

1. 2
2. 4
3. 6
4. 8
Ans: (4)



45. How many small cubes do not have any of the faces painted ?

1. 1
2. 4
3. 8
4. None of the above
Ans: (1)

Direction (Q. Nos. 46 to 48): All nine figures of each question are numbered from 1 to 9. Arrange them into 3 groups according to their common properties.

1. (1, 7, 9) ; (2, 3, 6) ; (4, 5, 8)
2. (1, 2, 9) ; (3, 4, 6) ; (5, 7, 8)
3. (1, 6, 8) ; (2, 4, 7) ; (3, 5, 9)
4. (1, 7, 8) ; (2, 9, 3) ; (6, 4, 5)
Ans: (1)

1. (1, 2, 6, 8) ; (3, 4, 9) ; (5, 7)
2. (1, 2, 4) ; (3, 8, 9) ; (4, 5, 7)
3. (1, 8, 6) ; (2, 3, 5) ; (4, 7, 9)
4. (1, 3, 4) ; (2, 8, 9) ; (5, 6, 7)
Ans: (3)

1. (4, 7, 9) ; (1, 3, 8) ; (2, 5, 6)
2. (1, 3, 4) ; (2, 6, 8) ; (5, 7, 9)
3. (1, 3, 4) ; (2, 5, 7) ; (6, 8, 9)
4. (1, 3, 8) ; (2, 5, 7) ; (4, 6, 9)
Ans: (2)

Direction (Q. Nos. 49 to 50): The problem figure is embedded in one of the four answer figures. Find the correct answer figure which contains the problem figure.

Ans: (3)

Ans: (3)

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