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Civil Engineering formulas
64 results. Open any card and leave one value empty to calculate it.
Civil Engineering
Friction coefficient for turbulent flow
Civil Engineering
\[C_{D} = \frac{24}{R_{e}} + \frac{3}{\sqrt{R_{e}}} + 0.34\]
GATE
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Civil Engineering
Hydraulic mean depth or Hydraulic Radius
Civil Engineering
\[R = \frac{Area}{Wetted_{perimeter}}\]
GATE
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Civil Engineering
Manning’s Formula
Civil Engineering
\[V = \frac{1}{n} \cdot {R}^{\frac{2}{3}} \cdot {S}^{\frac{1}{2}}\]
GATE
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Civil Engineering
Maximum daily Demand of water
Civil Engineering
\[Maximum_dally_demand = 1.8 \cdot Avg_daily_demand\]
GATE
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Civil Engineering
Maximum Hourly Demand of water
Civil Engineering
\[Maximum_hourly_demand = 1.5 \cdot Avg_demand_hourly_of_max_day\]
GATE
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Civil Engineering
Maximum Hourly Demand or Peak Demand of water
Civil Engineering
\[Maximum_hourly_demand_or_peak_demand = 2.7 \cdot Avg \cdot Hourly_demand\]
GATE
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Civil Engineering
Negative skin frictions for Cohesive less soil
Civil Engineering
\[Q_n \cdot f = P \cdot force_per_unit_surface_length_of_pile\]
GATE
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Civil Engineering
Newmark's Chart Method
Civil Engineering
\[\sigma_{Z} = 0.005 \cdot q \cdot N_{A}\]
GATE
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Civil Engineering
Non-Carbonate Hardness of water
Civil Engineering
\[Non_carbonate_hardness = Total_hardness - Alkalinity\]
GATE
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Civil Engineering
Number of unit required for Rapid Sand Filter
Civil Engineering
\[N = 1.22 \cdot sqrt ( Q )\]
GATE
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Civil Engineering
Organic matter present at t=0
Civil Engineering
\[k_0 = 0.434 \cdot K\]
GATE
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Civil Engineering
Peak discharge for maximum discharge
Civil Engineering
\[Q_{p} = \frac{1}{36} \cdot k \cdot P_{c} \cdot A\]
GATE
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Civil Engineering
Per Capita Demand of water
Civil Engineering
\[q = \frac{Total_{yearly\_water\_requirement\_of\_the\_city\_in\_litre}}{365 \cdot Design_{population}}\]
GATE
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Civil Engineering
Plasticity Index of soil
Civil Engineering
\[I_p = W_L - W_p\]
GATE
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Civil Engineering
Population forecasting by Arithmetic method
Civil Engineering
\[P_n = P_0 + n \cdot x_bar\]
GATE
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Civil Engineering
Population forecasting by Geometric Method
Civil Engineering
\[P_{n} = P_{0} \cdot {\left(1 + \frac{r}{100}\right)}^{n}\]
GATE
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Civil Engineering
Relation between e, w, G and S
Civil Engineering
\[Se = W \cdot G\]
GATE
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Civil Engineering
Relation between γd and γ
Civil Engineering
\[\gamma_{d} = \frac{\gamma}{1 + w}\]
GATE
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Civil Engineering
Resultant earth pressure at base
Civil Engineering
\[P_p - P_a = ( 4 \cdot c - q )\]
GATE
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Civil Engineering
Sand filter designed for maximum daily demand
Civil Engineering
\[\frac{Discharge}{Rate_{of\_filteration}} = Plan_{area}\]
GATE
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Civil Engineering
Saturated unit weight of soil
Civil Engineering
\[\gamma_{sat} = \frac{W_{s} \cdot a \cdot t}{V}\]
GATE
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Civil Engineering
Solids, Suspended Solids and Settleable Solids
Civil Engineering
\[S_3 = S_1 - S_2\]
GATE
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Civil Engineering
Solids, volatile Suspended Solids, and fixed Solids
Civil Engineering
\[S_2 - S_4 = S_5\]
GATE
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Civil Engineering
Specific retention
Civil Engineering
\[S_{R} = \frac{V_{W} \cdot R}{V}\]
GATE
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