SYMBOLS IN PLENTY

1.Which of the following is the normal practice of representing 'Ad infinitum'?
   a)Colon
   b)A dash
   c)Three dots
   d)A semi-colon

2.The symbol of infinity is basically:
   a)A cabal symbol
   b)A Greak letter
   c)A curve
   d)A hebrew letter

 3.The multiplication symbol 'x' has its origin in:
   a)St.Andrews cross
   b)The Hindu number system
   c)The Babylonian script
   d)The unknown x

 4.The addition symbol + has its origin in:
    a)The Latin et
    b)An Indian traders book
    c)The Arabic script
    d)The Italian piu

 5.The square root of minus one is represented by i and it stands for:
    a)improbable
    b)imaginary
    c)impossible
    d)none of the above

 6.The integral  sign ∫ stands for a short form of:
    a)the sum
    b)the summary
    c)the smallest part
    d) the smartest part

 7.The symbol ≅ in Geometry stands for:
    a)Parallel lines
    b)Equilateral triangles
    c)Isosceles triangles
    d)Congruent triangles

 8.The symbol 'Aleph' employed in set theory is originally a:
    a)Latin letter
    b)Sanskrit letter
    c)Hebrew letter
    d)None of this

 9.IN arithmetic, % is the symbol of:
    a)per cent
    b)per mil
    c)proportional
    d)ratio

10.In geometry, ⨀ is the symbol of:
    a)annulus
    b)circle
    c)concentric circle
    d)centre

 11.The origin of the symbol   √  is:
    a)The letter z
    b)The letter r
    c)The elongated from of z
    d)None of these

12.It is the number 10 of this equation log 100=2. It mathematically stands for:
     a)Bar
     b)Vector
     c)Base
     d)Terminal


 ANSWRES

 1. c)Three dots

 2. c)A curve

 3. a)St.Andrews cross

 4. a)The Latin et

 5. c)impossible

 6. a)the sum

 7. d)Congruent triangles

 8. c)Hebrew letter

 9. a)per cent

10. b)circle

11. b)The letter r

12. c)Base

    

MULTIPLES USED WITH S.I. UNITS

             DECIMAL MULTIPLES AND MULTIPLES USED 
                                 WITH S.I. UNITS

Multiple	Prefix	Symbol
10	Deca	da
100	Hecto	h
1000	Kilo	k
106	Mega	M
109	Giga	G
1012	Tera	T
1015	Reta	P
1018	Exa	E

Submultiple	Prefix	Symbol
10-1	Deci	d
10-2	Centi	c
10-3	Milli	m
10-6	Micro	μ
10-8	Atto	η
10-9	Nano	p
10-12	Pico	f
10-15	Femto	a