The Central Industrial Security Board Force was successfully conducted the exam on 29 May 2016.

CISF is provides detail of syllabus for head constable post the topics listed in the CISF Head Constable Exam are General Intelligence, General Studies/Elementary Science, General English or Hindi and Arithmetic.

Make a look at the Syllabus of CISF HC Exam.

General Intelligence
General Studies/Elementary Science
General English or Hindi
Arithmetic

Paper pattern:
Head Constable

Subject Marks Duration
General Intelligence. 100 2 Hours
General Studies/Elementary science
General English.
Arithematic.
Total

CISF Head Constable Paper:

Quantitative Aptitude

Number Series Questions asked in 1st slot–

1. 7 5 7 17 61 ?

Solution – Ans 109

7 x 1 – 2 = 5

5 x 2 – 1 = 7

7 x 1 – 4 = 17

17 x 4 – 5 = 61

61 x 5 – 6 = 109

2. 50 ? 61 89 154 280

Solution – Ans 52

50..50+(1^1+1) = 52

52+(2^1+1)=61.

61+(1^1+1)=89

89+(4^1+1)=154

154 + (5^1+1) = 280

1. 17, 19, 25, 17, ……,87

Solution – Ans 57
17 + 1 x 2 = 19
19 + 2 x 1 = 25
25 + 1 x 4 = 17
17 + 4 x 5 = 57
57 + 5 x 6 = 87

4. 11, 14, 19, 28, 41, ?

Solution – Ans 66
1…5…9…15…21
2…4….6…….8

5. 26 144 590 1164 ?

Solution – Ans 1182

26 x 6 – 12 = 144
144 x 4 + 14 = 590
590 x 2 – 16 = 1164
1164 x 1 + 18 = 1182

Number Series Questions asked in 2nd slot–

1. 9 16 25 18 ?
2. 25 ? 16 64 129 255

Miscellaneous Questions –
Questions asked in 1st slot (memory based)

1. Ratio of height of cylinders 1:5, ratio of their volume is 27:80. What will be the ration of their radius?

2. A Vassal contain some litters of pure milk. If 25 litter of water added to the vessel, ratio becomes milk to water 12:5, 17 litters of mixture is drawn from the vessel & 10 litters of water is added. Find the new ratio between milk & water.

1. Ratio between height of 2 cylinder in the ratio 1:5. Their volumes are in the ratio 27:80. Find ratio between their radius.

4. Sum of money is invested in Scheme A, 15% per annum, After 2 years amount is received, that amount invested in scheme B at 20% per annum for compound interest. If the interest received at the end of 2 years is 1410. Find the sum. (Answer: 5000)

5. 4.6 consective odd numbers and average difference between average of squares of last three no. & Product of first and second number .Find the (1st) or (last)

6. A box contains 10 red ball 6 green ball if 2 balls are drawn randomly what is the probability of getting non green ball ?

7. 2 persons are invested in ratio 4:6, after 6 months 2nd person withdraw his amount at the time 1rd person invested 12x. At the end of the year total profit is 11150. Find share of 1rd person.

8. 1 person age A, B, C. A is 4 years younger than B. B is 12 years younger than C. 4 years hence the ratio between C&A is 9:5, Find the age of B.

9. B is 20% efficient than A. B started the work & do it for x days. And then B is replaced A . And A completed the remaining work in x+8 days. Ratio of work done by A & B is 2:1. In how many day A & B working together to complete the whole work?

10. If three metallic spheres of radii 6 cms, 8 cms and 10 cms are melted to from a single sphere, the diameter of the new sphere will be:

Sol (10) 4/1 pie (6^1 + 8^1 + 10^1 ) = 4/1 pie R^1
=> (216+512+1000) = R^1
=> R^1 = 1728
=> R = 12
thus, D= 2 x 12 = 24

Quadratic Equation:

1. 6x^2 – 11 x+4=0
10 y^2 – 21 y +1=0

2. 7x^2 +10 x+1=0
2y^2 +11 y+14=0