KNOWLEDGE MANTRA III ELECTRO MANIACS CLUB

Problems on SQUARE ROOT

CLASS……………… ROLL NO………………….

1. / The square root of .000625 is:
A. / 0.25 / B. / 0.025
C. / 25 / D. / 0.0025
2. / What should come in place of both x in the equation / x / = / √162 / .
√128 / x
A. / 12 / B. / 14
C. / 144 / D. / 196
3. / The least perfect square, which is divisible by each of 21, 36 and 66 is:
A. / 213444 / B. / 214344
C. / 214434 / D. / 231444
4. / Square root of √1.5625 = ?
A. / 1.05 / B. / 1.25
C. / 1.45 / D. / 1.55
5. / If 3√5 + √125 = 17.88, then what will be the value of √80 + 6√5 ?
A. / 13.41 / B. / 20.46
C. / 21.66 / D. / 22.35
6. / If a = 0.1039, then the value of √(4a2 - 4a + 1) + 3a is:
A. / 0.1039 / B. / 0.2078
C. / 1.1039 / D. / 2.1039

7. What is the smallest SQUARE number which is divisible by each of the numbers 6,9 and 15 ?

A. 900 B. 810

C.630 D. 720

8. / A group of students decided to collect as many paise from each member of group as is the number of members. If the total collection amounts to Rs. 59.29, the number of the member is the group is:
A. / 57 / B. / 67
C. / 77 / D. / 87
9. / The square root of (7 + 3√5) (7 - 3√5) is
A. / √5 / B. / 2
C. / 4 / D. / 3√5
10. / If √5 = 2.236, then the value of / √5 / - / 10 / + √125 is equal to:
2 / √5
A. / 5.59 / B. / 7.826
C. / 8.944 / D. / 10.062
11. / . / {√625 / /11 * 14/√25 * / 11 / /√196 / } / / is equal to:
A. / 5 / B. / 6
C. / 8 / D. / 11
12. / √(0.0169 * ?) = 1.3
A. / 10 / B. / 100
C. / 1000 / D. / None of these
13.
Square of (√3-1/√3) is
A. / 3
4
/ B. / 4
3
C. / 4
3
/ D. / None of these
14. / How many two-digit numbers satisfy this property.: The last digit (unit's digit) of the square of the two-digit number is 8 ?
A. / 1 / B. / 2
C. / 3 / D. / None of these
15. / The square root of 64009 is:
A. / 253 / B. / 347
C. / 363 / D. / 803

16. If 13691/2+(0.0615+x)1/2=37.25 then x is equals to

A. 0.001 B. 0.01

C. 0.0001 D. 0.1

17. √(0.00169 * ?) = 1.3

A. 100 B. 1000

C. 110. D.10

18. If 3a=4b=6c and a+b+c=27 then Find c value is

A. 53/3 B. 53/7

C.54/9 D. 54/6

19. .If √{1 + (x / 144)} = 13 / 12, the find the value of x

A. 25 B. 15

C. 5. D.35

20. The smallest number added to 680621 to make the sum a perfect square is

A.6 B.4

C. 2 D.8

21.Vande Mataram was first sung at the session of the Indian National Congress in

A. / 1892 / B. / 1896
C. / 1904 / D. / 1886

22. The title 'Vikramaditya' was assumed by

A. / Harsha
B. / Chandragupta II
C. / Kanishka
D. / Samudragupta

23.The Parliament of India cannot be regarded as a sovereign body because

A. / it can legislate only on subjects entrusted to the Centre by the Constitution
B. / it has to operate within the limits prescribed by the Constitution
C. / the Supreme Court can declare laws passed by parliament as unconstitutional if they contravene the provisions of the Constitution
D. / All of the above

24.The members of the Rajya Sabha are elected by

A. / the people
B. / Lok Sabha
C. / elected members of the legislative assembly
D. / elected members of the legislative council

25.States earn maximum revenue through

A. / land revenue
B. / custom revenue
C. / commercial taxes
D. / excise duties on intoxicants

26.In which decade was the first solid state integrated circuit demonstrated?

A. / 1950s / B. / 1960s
C. / 1970s / D. / 1980s

27. Brass gets discoloured in air because of the presence of which of the following gases in air?

A. Oxygen B. hydrogen Sulphide
C. carbon dioxide D. Nitrogen

28. The ratio of width of our National flag to its length is

A. / 3:5 / B. / 2:3
C. / 2:4 / D. / 3:4

29. Which was the 1st non Test playing country to beat India in an international match?

A. / Canada / B. / Sri Lanka
C. / Zimbabwe / D. / East Africa

30. In what year was the "@" chosen for its use in e-mail addresses?

A. / 1976 / B. / 1972
C. / 1980 / D. / 1984

31. Movement of cell against concentration gradient is called

A. / Osmosis B. active transport
C. / Diffusion D. passive transport

32. The first Indira Gandhi Award for International Justice and Harmony has been given to

A. / Larry Pressler B. amnesty international
C. / Hussain Ibrahim Zaki D. Yasser Arafat

33. Radiocarbon is produced in the atmosphere as a result of

A. / collision between fast neutrons and nitrogen nuclei present in the atmosphere
B. / action of ultraviolet light from the sun on atmospheric oxygen
C. / action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere
D. / lightning discharge in atmosphere

34. what is the meaning of ‘SANGUINE’?

A. cheerful B. hopeful

C. confident D. all of these

35. National Police Academy is located at

A. Bangalore B. Hyderabad C. Abu road D. Dehradun

ANSWER
1.B / 8.C / 15.A / 22.B / 29.B
2.A / 9.B / 16.A / 23.D / 30.B
3.A / 10.B / 17.B / 24.C / 31.B
4.B / 11.A / 18.C / 25.B / 32.D
5.D / 12.B / 19.A / 26.A / 33.A
6.C / 13.C / 20.B / 27.B / 34.D
7.A / 14.D / 21.B / 28.B / 35.B