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What will be the optimum depth of ballast cushion required for a BG railway track below the sleepers with sleeper density of (M + 5) and bottom width of 22.22 cm?
  • a)
    25 cm
  • b)
    21 cm
  • c)
    28 cm
  • d)
    30 cm
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
What will be the optimum depth of ballast cushion required for a BG ra...
Calculation of Optimum Ballast Cushion Depth:
1. Given Data:
- Sleeper density = (M + 5) sleepers
- Bottom width of sleeper = 22.22 cm
2. Formula for Optimum depth of ballast cushion:
- Optimum depth = 0.3 * (√(Sleeper density)) * Bottom width of sleeper
3. Substitute the given values into the formula:
- Optimum depth = 0.3 * (√(M + 5)) * 22.22 cm
- Optimum depth = 6.666 * (√(M + 5)) cm
4. Since the sleeper density is given as (M + 5), the optimum depth of ballast cushion will be:
- Optimum depth = 6.666 * (√(M + 5)) cm
5. Calculate the optimum depth for a sleeper density of (M + 5):
- Optimum depth = 6.666 * (√(M + 5)) cm
6. Therefore, the optimum depth of ballast cushion required for a BG railway track below the sleepers with a sleeper density of (M + 5) and bottom width of 22.22 cm is 25 cm (Option A).
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Community Answer
What will be the optimum depth of ballast cushion required for a BG ra...
Concept:
Sleeper density is denoted as L + m.
Where L=Length of one rail; m= any integer
Sleeper density signifies the number of sleepers per one rail length.
Optimum depth of ballast cushion = (S-W)/2
Where S = Spacing of sleepers
W=Bottom width of sleeper
Calculation:
Sleeper density = (M + 5) and bottom width = 22.22 cm
Length of one rail = 12.8 m
No of sleepers = 12.8 + 5 = 17.8
Spacing of sleepers = (12.8x100)/17.8 = 71.91 cm
Optimum depth of ballast cushion=(S-W)/2 = (71.91 - 22.22)/2 = 24.84 cm = 25 cm
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What will be the optimum depth of ballast cushion required for a BG railway track below the sleepers with sleeper density of (M + 5) and bottom width of 22.22 cm?a)25 cmb)21 cmc)28 cmd)30 cmCorrect answer is option 'A'. Can you explain this answer?
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What will be the optimum depth of ballast cushion required for a BG railway track below the sleepers with sleeper density of (M + 5) and bottom width of 22.22 cm?a)25 cmb)21 cmc)28 cmd)30 cmCorrect answer is option 'A'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about What will be the optimum depth of ballast cushion required for a BG railway track below the sleepers with sleeper density of (M + 5) and bottom width of 22.22 cm?a)25 cmb)21 cmc)28 cmd)30 cmCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What will be the optimum depth of ballast cushion required for a BG railway track below the sleepers with sleeper density of (M + 5) and bottom width of 22.22 cm?a)25 cmb)21 cmc)28 cmd)30 cmCorrect answer is option 'A'. Can you explain this answer?.
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