51. How many fathoms make one cable length?
(a) 200 fathoms
(b) 100 fathoms
(c) 50 fathoms
(d) 300 fathoms
52. How many furlongs make one mile?
(a) 8
(b) 6
(c) 10
(d) 12
53. One mile is equal to:
(a) 1760 yards
(b) 1860 yards
(c) 1900 yards
(d) 1960 yards
54. How many chains constitute one furlong?
(a) 10 chains
(b) 12 chains
(c) 15 chains
(d) 20 chains
55. How many rods constitute one chain?
(a) 4
(b) 6
(c) 8
(d) 10