(a)  4         2        3          1
       (b)  3         1        2          4
       (c)  2         4        1          3
       (d)  1         3        4          2
Ans : (c)
167. One micron is equal to:
       (a) 1/10 th of mm
       (b) 1/100 th of mm
       (c) 1/1000 th of mm
       (d) 1/10000 th of mm
Ans : (c)
168. One horse power is equal to :
       (a) 736 watts
       (b) 746 watts
       (c) 748 watts
       (d) 756 watts
Ans : (b)
169. What is the number of basic units in the International System of Units?
       (a) 4
       (b) 5
       (c) 6
       (d) 7
Ans : (d)
170. Match the following:
        Physical Quantity                       Unit
     A. Electric force              1.    Volt between two
                                          charged bodies
     B.    Electric charge          2.    Newton
     C.    Electric potential       3.    Farad
     D.    Electric capacity        4.    Coulomb
            A         B        C          D
       (a)  1         3        4          2
       (b)  1         4        3          2
       (c)  2         4        3          1
       (d)  2         3        4          1
Ans : (d)
171. If you swim one km, how many miles do you swim? [HoteI Management, 1992]
       (a) 0.5
       (b) 0.62
       (c) 0.84
       (d) 1.6
Ans : (b)
172. Match the following: [CDS1992]
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