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Civil Engineering Objective Questions { Railways }



50. The sleepers which satisfy the requirements of an ideal sleeper, are
A. cast iron sleepers
B. R.C.C. sleepers
C. steel sleepers
D. wooden sleepers.
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51. The life of a wooden sleeper depends upon
A. quality of its timber
B. ability to resist decay
C. resistance to weathering
D. all the above.
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52.  Best wood for wooden sleepers is
A. chir
B. deodar
C. sal
D. teak
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53. Wooden sleepers used on the girders of bridges, are generally made of
A. sal
B. chir
C. teak
D. deodar.
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54.  Burnettising is done for the preservation of
A. wooden sleepers
B. rails
C. ballast
D. none of these.
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55.  If n is length of a rail in metres, the number of sleepers per rail length generally varies from
A. n to (n + 2)
B. (n + 2) to (n + 4)
C. (n + 3) to (n + 6)
D. (n + 4) to (n + 5).
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56.  Minimum packing space provided bet-ween two sleepers, is between
A. 20 to 25 cm
B. 25 to 30 cm
C. 30 to 35 cm
D. 35 to 40 cm.
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