1. Expressing numbers (large or small) as powers of 10 is called: a) Scientific notation b) Standard notation c) Logarithmic form d) None of these

2. In the product, b x 10n, the number b lies between: a) 1 and 15 b) 10 and 15 c) 1 and 10 d) 1 and 15

3. Writing numbers in a particular method as integral powers of 10 is called: a) Standard notation b) Logarithms c) Scientific notation d) None of these

4. The first book on Algebra was written by: a) John Napier b) None of these c) Briggs d) Abu- Muhammad Musa Al- Khwarizmi

5. Name of first book on Algebra was: a) Basic algebra b) Collage algebra c) Aljabar-wal-maqabla d) Algebra and trigonometry

6. The pioneer of logarithms is: a) Al-Khwarizmi b) John Napier c) Briggs d) None of these

7. The logarithm to the base "e" are called: a) Briggs or common logarithms b) Equivalent statements c) Natural Napierian Logarithms d) None of these above

8. The logarithms to base 10 are called: a) Briggs or common logarithms b) Natural or Napierian logarithms c) Equivalent statements d) None of these

9. Decimal number system is based on: a) Both (a) and (b) b) Base e c) Base 10 d) None of these

10. The base of common logarithms is: a) 1 b) 2 c) e d) 10

11. The logarithms of integral power of 10 is: a) Irrational number b) Only number c) Only prime number d) Integral whole number

12. The logarithmic value of the number between 1 and 10 is between: a) 2 and 3 b) 1 and 2 c) 0 and 1 d) 3 and 4

13. The logarithmic value of the number between 10 and 100 is between: a) 0 and 1 b) 1 and 2 c) 3 and 4 d) 2 and 3

14. Logarithmic value of 225 is between: a) 0 and 1 b) 1 and 2 c) 2 and 3 d) 3 and 4

15. The logarithmic value of a number consists of: a) Only one b) Two parts c) Three parts d) None of these

16. The integral part of the logarithm of any number is called: a) Mantissa b) Both (a) and (b) c) Characteristic d) None of these

17. The characteristic is: a) Always positive b) Always negative c) Positive or negative both d) None of these

18. The fractional part of the logarithm of any number is called: a) Mantissa b) Characteristic c) Both (a) and (b) d) None of these

19. Mantissa is always: a) Negative b) Positive c) Both (a) and (b) d) None of these

20. If log x = 2.3781, characteristic is: a) -2 b) 2 c) 0.3781 d) -0.3781

21. If log x = -2.3781, mantissa is: a) 2 b) -2 c) 0.3781 d) -0.3781

22. The characteristic of the logarithm of any number is equal to the power of: a) 2 b) 5 c) 10 d) 8

23. The characteristic of log 19 is: a) 0 b) 10 c) 2 d) 1

24. The place between the first none-zero digit and its next digit on left side of the given number is called: a) Reference position b) Standard form c) Scientific notation d) None of these

25. Anti-logarithm is a method to find a number whose logarithmic value is: a) Unknown b) Not possible c) Given d) None of these

26. If log x = g, then x is called: a) none of these above b) Anti- logarithm of x c) Anti- logarithm of y d) Anti- logarithm of g

27. Anti - logarithm is written as if log x = g: a) g=antilog (x) b) x=antilog (g) c) g=antilog (y) d) None of these

28. To find antilogarithm, we use the table of : a) Natural numbers b) Square numbers c) Anti - logarithm d) None of these

29. If log x = 2.5321,then characteristic of log x is: a) 0.5321 b) -0.5321 c) -2 d) 2

30. Mantissa of log x is ------------------ if log x = 2.5321. a) 0.5321 b) -0.5321 c) -2 d) 2

31. If log x = 0.5019, then characteristic is : a) 1 b) 2 c) 3 d) 0

32. Mantissa of log x = 0.5019 is : a) 0.5019 b) 2 c) 4 d) -2

33. Laws of logarithms are : a) 1 b) 2 c) 3 d) 4

34. Log (55.5 x 81) 32; = a) log 55.5 + log 81 b) log 55.5 - log 81 c) log 81 + log 55.5 d) log 55.5 / log 81

35. Log 2 = a) 0.3109 b) 0.1293 c) 2.3010 d) 0.3010

36. Log 729 = a) 0.8126 b) 2.5276 c) 2.8627 d) 0.1299

37. Characteristic of log 24.35 is: a) 1 b) -2 c) 2 d) -1

38. Characteristic of log 9925.4 is: a) 1 b) 2 c) 3 d) -1

39. The logarithmic value of a number consists of: a) One part b) Two part c) Three part d) Four part

40. Log (5 x 9) is: a) 1.6532 b) 0.6669 c) 0.7000 d) 0.6989

41. log 523.4 + log 291.9 is equal to: a) 5.1841 b) 6.7026 c) 0.2536 d) 1.1029

42. Log 15 is equal to: a) 0.1761 b) 1.1761 c) 1.7609 d) 1.761

43. If log x = 2 then the value of x is: a) 10 b) 100 c) 1 d) 0.10

44. The value of x is __________ when log x = 0.9009 a) 28.47 b) 79.60 c) 796.0 d) 7.960

45. If log x = 2.5325 then x is equal to: a) 3408 b) 3.408 c) 340.8 d) 0.3408

46. Scientific notation of a given number ' a ' is expressed as: a) a = 10 X bn b) a = b X 100 c) b = a X 100 d) a = b X 10n-1

47. 100000 in scientific notation is written as: a) 1 X 103 b) 1 X 105 c) 10 X 105 d) 100 X 105

48. 456.24 in scientific notation is: a) 4.5624 X 102 b) 0.45524 X 103 c) 45624 X 10-2 d) All are correct

49. We can express 0.00000225 in scientific notation as: a) 2.25 X 104 b) 2.25 X 106 c) 225 X 106 d) 2.25 X 103

50. The standard form of 2.35 X 10-2 a) 23500 b) 0.0235 c) 235 d) 1000

51. 43 = 64 in logarithmic form is: a) log3 64 = 4 b) log4 64 = 3 c) log64 3 = 4 d) log64 4 = 3

52. If characteristic is negative then it 32; is written as: a) `a b) 1 / a c) a d) √a

53. If loga (m)n = a) n loga m b) m loga n c) a logm n d) a logn m

54. Loga (3 X 7) is equal to: a) Log 3 + log 7 b) Log 3 - Log 7 c) Loga  3 + Loga  7 d) a Log 3 + a Log 7

55. The 32; Logarithmic form of Xa  = 9 is: a) Loga 9 = x b) Logx a = 9 c) Logx 9 = a d) Log9 X = a

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