The discharge Q = 2 /2.3 log10 (R/rw) for the confined tube well is obtained from (A) Thiem's formula (B) Darcy's formula (C) Tolman's formula (D) Dupuits formula

The discharge Q = 2 /2.3 log10 (R/rw) for the confined tube well is obtained from 

(A) Thiem's formula 

(B) Darcy's formula 

(C) Tolman's formula 

(D) Dupuits formula 

by

1 Answer

Answer :

(D) Dupuits formula 

by

Related questions

Derivation of Thiem's formula Q = 2 (s1 - s2)/2.3 log10 (r2/r1) is based on the assumption (A) The aquifer is homogeneous, isotropic and of infinite depth and area (B) The well is sunk through the full depth of the aquifer (C) The flow lines are radial and horizontal, and the flow is laminar (D) All the above

Description : Derivation of Thiem's formula Q = 2 (s1 - s2)/2.3 log10 (r2/r1) is based on the assumption  (A) The aquifer is homogeneous, isotropic and of infinite depth and area  (B) The well is sunk ... (C) The flow lines are radial and horizontal, and the flow is laminar  (D) All the above 

Last Answer : (D) All the above 

the derivation of Thiem's formula, Q = (S1 - S2)/[2.3 log10( / )] the following assumption is not applicable (A) The aquifer is homogeneous and isotropic (B) Flow lines are radial and horizontal (C) The slope of the water surface is too small (D) The well has been sunk up to the surface of the unconfined aquifer

Description : the derivation of Thiem's formula, Q = (S1 - S2)/[2.3 log10( / )] the following assumption is not applicable (A) The aquifer is homogeneous and isotropic (B) Flow lines are radial and ... the water surface is too small (D) The well has been sunk up to the surface of the unconfined aquifer

Last Answer : Answer: Option D

S1 and S2 are the draw downs in an observation well at times t1 and t2 after pumping. For discharge Q and coefficient of transmissibility T, the relationship, is (A) S2 - S1 = (2.3Q/ ) log10 (t2/t1) (B) S2 - S1 = (2.3Q/4 ) log10 (t2/t1) (C) S2 - S1 = (2.3Q/4 ) loge (t2/t1) (D) S2 - S1 = (2.3Q/4 ) loge (t1/t2

Description : S1 and S2 are the draw downs in an observation well at times t1 and t2 after pumping. For  discharge Q and coefficient of transmissibility T, the relationship, is  (A) S2 - S1 = (2.3Q/ ) log10 (t2/t1)  (B) S2 - S1 ... - S1 = (2.3Q/4 ) loge (t2/t1)  (D) S2 - S1 = (2.3Q/4 ) loge (t1/t2

Last Answer : (B) S2 - S1 = (2.3Q/4 ) log10 (t2/t1) 

For determining the velocity of flow of underground water, the most commonly used non￾empirical formula is (A) Darcy's formula (B) Slichter's formula (C) Hazen's formula (D) Lacy's formula

Description : For determining the velocity of flow of underground water, the most commonly used non￾empirical formula is  (A) Darcy's formula  (B) Slichter's formula  (C) Hazen's formula  (D) Lacy's formula 

Last Answer : (A) Darcy's formula 

With the usual meanings of letters, the equation V = 400 I (D10²/4) is used for determining the velocity of ground water flow in metres per day. It is known as (A) Meinzer's formula (B) Slichter's formula (C) Darcy's formula (D) Hazen's formula

Description : With the usual meanings of letters, the equation V = 400 I (D10²/4) is used for determining the velocity of ground water flow in metres per day. It is known as (A) Meinzer's formula (B) Slichter's formula (C) Darcy's formula (D) Hazen's formula

Last Answer : Answer: Option B

The equation V = (1000 ID10²/60) × (1.8T + 42) which is used for determining the velocity of ground water flow in metres per day is known as (A) Meinzer's formula (B) Slichter's formula (C) Darcy's formula (D) Hazen formula

Description : The equation V = (1000 ID10²/60) × (1.8T + 42) which is used for determining the velocity of ground water flow in metres per day is known as (A) Meinzer's formula (B) Slichter's formula (C) Darcy's formula (D) Hazen formula

Last Answer : Answer: Option D

According to Darcy's formula, the loss of head due to friction in the pipe is (where f = Darcy's coefficient, l = Length of pipe, v = Velocity of liquid in pipe, and d = Diameter of pipe) (A) flv²/2gd (B) flv²/gd (C) 3flv²/2gd (D) 4flv²/2gd

Description : According to Darcy's formula, the loss of head due to friction in the pipe is (where f = Darcy's coefficient, l = Length of pipe, v = Velocity of liquid in pipe, and d = Diameter of pipe) (A) flv²/2gd (B) flv²/gd (C) 3flv²/2gd (D) 4flv²/2gd

Last Answer : Answer: Option D

For calculation of economical diameter D of a pipe in metres for a discharge Q to be pumped in cumecs, Lea suggested the empirical formula (A) D = 0.22 Q (B) D = 1.22 Q (C) D = 2.22 Q (D) D = 3.22 Q

Description : For calculation of economical diameter D of a pipe in metres for a discharge Q to be pumped in  cumecs, Lea suggested the empirical formula  (A) D = 0.22 Q (B) D = 1.22 Q (C) D = 2.22 Q (D) D = 3.22 Q

Last Answer : (B) D = 1.22 Q

If total run off of a basin of 50 hectares is 0.8 cm, the ordinate of Bernard's distribution graph, may be calculated by the formula (where Q is the discharge in cumecs at the given time) (A) y = 50 Q (B) y = 100 Q (C) y = 200 Q (D) y = 250 Q

Description : If total run off of a basin of 50 hectares is 0.8 cm, the ordinate of Bernard's distribution graph, may be calculated by the formula (where Q is the discharge in cumecs at the given time) (A) y = 50 Q (B) y = 100 Q (C) y = 200 Q (D) y = 250 Q

Last Answer : Answer: Option D

The expected discharge to be obtained from an open well sunk in coarse sand is 0.0059 cumec. If the working depression head of the well is 3 m, the minimum diameter of the well, is (A) 2 m (B) 2.25 m (C) 2.50 m (D) 3.00 m

Description : The expected discharge to be obtained from an open well sunk in coarse sand is 0.0059 cumec. If  the working depression head of the well is 3 m, the minimum diameter of the well, is  (A) 2 m  (B) 2.25 m  (C) 2.50 m  (D) 3.00 m 

Last Answer : (D) 3.00 m 

When a constant discharge 2.91 litres/sec. was obtained in a pumping test, the draw downs in the test wells at 3 m and 6.184 m were 2.6 m and 0.3 m respectively. If over-all depth of the pumping well was 16 m, the permeability of the soil, is (A) 0.0005 cm/sec (B) 0.001 cm/sec (C) 0.002 cm/sec (D) 0.01 cm/sec

Description : When a constant discharge 2.91 litres/sec. was obtained in a pumping test, the draw downs in the test wells at 3 m and 6.184 m were 2.6 m and 0.3 m respectively. If over-all depth of the pumping well was 16 m, the ... (A) 0.0005 cm/sec (B) 0.001 cm/sec (C) 0.002 cm/sec (D) 0.01 cm/sec

Last Answer : Answer: Option B

. The entropy change in a reversible isothermal process, when an ideal gas expands to four times its initial volume is (A) R loge 4 (B) R log10 4 (C) Cv log10 4 (D) Cv loge 4

Description : . The entropy change in a reversible isothermal process, when an ideal gas expands to four times its initial volume is (A) R loge 4 (B) R log10 4 (C) Cv log10 4 (D) Cv loge 4

Last Answer : (A) R loge 4

. The entropy change in a reversible isothermal process, when an ideal gas expands to four times its initial volume is (A) R loge 4 (B) R log10 4 (C) Cv log10 4 (D) Cv loge 4

Description : . The entropy change in a reversible isothermal process, when an ideal gas expands to four times its initial volume is (A) R loge 4 (B) R log10 4 (C) Cv log10 4 (D) Cv loge 4

Last Answer : (A) R loge 4

Darcy's law is applicable to seepage if a soil is (A) Homogeneous (B) Isotropic (C) Incompressible (D) All the above

Description : Darcy's law is applicable to seepage if a soil is (A) Homogeneous (B) Isotropic (C) Incompressible (D) All the above

Last Answer : (D) All the above

Pick up the incorrect statement from the following: (A) The rate of flow of water through a unit cross-sectional area under a unit hydraulic gradient, is called coefficient of permeability (B) The rate of flow of water through a vertical strip of the aquifer of unit width and full depth under a unit hydraulic gradient, is called coefficient of transmissibility (C) The flow of water through aquifers, is governed by the Darcy's law (D) The term 'transmissibility' was introduced by Meinzer

Description : Pick up the incorrect statement from the following: (A) The rate of flow of water through a unit cross-sectional area under a unit hydraulic gradient, is called coefficient of permeability (B) ... aquifers, is governed by the Darcy's law (D) The term 'transmissibility' was introduced by Meinzer

Last Answer : Answer: Option D

Two observation wells penetrating into a confined aquifer are located 1500 m apart in the direction of flow. Heads of 50 m and 25 m are indicated at these two observation wells. If the coefficient of permeability for the aquifer is 30 m/day and its porosity is 0.25, the time of travel of an inert tracer from one well to another is (a) 75 days (b) 750 days (c) 1200 days (d) 3000 days

Description : Two observation wells penetrating into a confined aquifer are located 1500 m apart in the direction of flow. Heads of 50 m and 25 m are indicated at these two observation wells. If the coefficient of permeability for the ... well to another is (a) 75 days (b) 750 days (c) 1200 days (d) 3000 days

Last Answer : (b) 750 days

Can I transfer videos to different computers via CD-R or DVD+RW without using a ripping program on the second computer?

Description : Can I transfer videos to different computers via CD-R or DVD+RW without using a ripping program on the second computer?

Last Answer : Yes, of course you can. Don’t format the DVD as a video disc. Just keep it a data disc, and transfer the movie file to it. Just like you would transfer pictures or Excel spreadsheets.

A non-erasable disk that stores digitized audio information is _____ a) CD b) CD-ROM c) DVD-R d) DVD-RW

Description : A non-erasable disk that stores digitized audio information is _____ a) CD b) CD-ROM c) DVD-R d) DVD-RW

Last Answer : Answer: a Explanation: A compact disk stores digitized audio information. The standard system uses 12 cm disks and can record more than 60 minutes of uninterrupted playing game

Which media have the ability to have data/information stored (written) on them by users more than once? 1) CD-R disks 2) CD-RW disks 3) Zip disks 4) Optical Disks

Description : Which media have the ability to have data/information stored (written) on them by users more than once? 1) CD-R disks 2) CD-RW disks 3) Zip disks 4) Optical Disks

Last Answer : 2) CD-RW disks

Which media have the ability to have data/information stored (written) on them by users more than once? 1 CD-R disks 2 CD-RW disks 3 Zip disks 4 Optical Disks

Description : Which media have the ability to have data/information stored (written) on them by users more than once? 1 CD-R disks 2 CD-RW disks 3 Zip disks 4 Optical Disks

Last Answer : 2 CD-RW disks

Which command is used to remove the read permission of the file 'note' from both the group and others? A. chmod go+r note B. chmod go+rw note C. chmod go-x note D. chmod go-r, 4-x note E. None of the above

Description : Which command is used to remove the read permission of the file 'note' from both the group and others? A. chmod go+r note B. chmod go+rw note C. chmod go-x note D. chmod go-r, 4-x note E. None of the above

Last Answer : D. chmod go-r, 4-x note

To pump water from a water reservoir 3 m deep and maximum water level at 135 m, a pump is installed to lift water up to R.L. 175 m at a constant rate of 36,00,000 litres per hour. If the length of the pipe is 1506 m and f = 0.01, ignoring other minor losses and assuming the economical diameter from Lea's formula D = 1.2 Q, the water horse power of the pump is (A) 400 (B) 450 (C) 500(D) 600

Description : To pump water from a water reservoir 3 m deep and maximum water level at 135 m, a pump is  installed to lift water up to R.L. 175 m at a constant rate of 36,00,000 litres per hour. If the length  of the ... the water horse power of the pump is  (A) 400  (B) 450  (C) 500 (D) 600

Last Answer : (D) 600

Three pipes P, Q and R can fill a tank from empty to full in 40 minutes, 15 minutes, and 30 minutes respectively. When the tank is empty, all the three pipes are opened. P, Q and R discharge chemical solutions X, Y and Z respectively. What is the proportion of the solution Y in the liquid in the tank after 5 minutes? a) 8 / 15 b) 7 / 15 c) 8 / 17 d) 6 / 13 e) 8 / 13

Description : Three pipes P, Q and R can fill a tank from empty to full in 40 minutes, 15 minutes, and 30 minutes respectively. When the tank is empty, all the three pipes are opened. P, Q and R discharge chemical solutions X, Y and Z respectively. ... 5 minutes? a) 8 / 15 b) 7 / 15 c) 8 / 17 d) 6 / 13 e) 8 / 13

Last Answer : a Part of the tank filled by pipe P in 1 minute = 1 / 40 Part of the tank filled by pipe Q in 1 minute = 1 / 15 Part of the tank filled by pipe R in 1 minute = 1/ 30 Here we have to find the proportion of ... together in 5 minute = 5 1/8 = 5/ 8 Required proportion = (1/3) / ( 5/8) = 8 / 15

Which of the noble gases produced a colored glow when excited by electricity passing through a glass tube in which the gas is confined?

Description : Which of the noble gases produced a colored glow when excited by electricity passing through a glass tube in which the gas is confined?

Last Answer : Neon has a red color.

Bulk of the convective heat transfer resistance from a hot tube surfaceto the fluid flowing in it, is(A) In the central core of the fluid(B) Uniformly distributed throughout the fluid(C) Mainly confined to a thin film of fluid near the surface(D) None of these

Description : Bulk of the convective heat transfer resistance from a hot tube surfaceto the fluid flowing in it, is (A) In the central core of the fluid (B) Uniformly distributed throughout the fluid (C) Mainly confined to a thin film of fluid near the surface (D) None of these

Last Answer : (C) Mainly confined to a thin film of fluid near the surface

Pitot tube is used for measurement of (A) Pressure (B) Flow (C) Velocity (D) Discharge

Description : Pitot tube is used for measurement of (A) Pressure (B) Flow (C) Velocity (D) Discharge

Last Answer : Answer: Option C

A pitot tube is used to measure the (A) Velocity of flow at the required point in a pipe (B) Pressure difference between two points in a pipe (C) Total pressure of liquid flowing in a pipe (D) Discharge through a pipe

Description : A pitot tube is used to measure the (A) Velocity of flow at the required point in a pipe (B) Pressure difference between two points in a pipe (C) Total pressure of liquid flowing in a pipe (D) Discharge through a pipe

Last Answer : Answer: Option A

For centrifugal pumps (A) Initial cost is low (B) Limited space is required (C) The discharge obtained is steady and non-pulsating (D) All the above

Description : For centrifugal pumps  (A) Initial cost is low  (B) Limited space is required  (C) The discharge obtained is steady and non-pulsating  (D) All the above 

Last Answer : (D) All the above 

For a catchment area of 120 km², the equilibrium discharge in m3/hour of a Scurve obtained by the summation of 6 hour unit hydro graph is (A) 0.2 × 106 (B) 0.6 × 106 (C) 2.4 × 106 (D) 7.2 × 10

Description : For a catchment area of 120 km², the equilibrium discharge in m3/hour of a Scurve obtained by the summation of 6 hour unit hydro graph is (A) 0.2 × 106 (B) 0.6 × 106 (C) 2.4 × 106 (D) 7.2 × 10

Last Answer : Answer: Option A

If w is the weight of water per cubic metre, Q is the discharge in cubic metres per sec and H is the total head, the required water horse power of the pump, is (A) wQH/15 (B) wQH/360 (C) wQH/220 (D) wQH/550

Description : If w is the weight of water per cubic metre, Q is the discharge in cubic metres per sec and H is the total head, the required water horse power of the pump, is (A) wQH/15 (B) wQH/360 (C) wQH/220 (D) wQH/550

Last Answer : (A) wQH/15

If Q is discharge is cubic metres per sec and D is the economical diameter of the pipe. According to Lea (A) D = 0.67 to 0.87 Q (B) D = 0.77 to 0.97 Q (C) D = 0.97 to 1.22 Q (D) D = 1.22 to 1.33 Q

Description : If Q is discharge is cubic metres per sec and D is the economical diameter of the pipe. According to Lea (A) D = 0.67 to 0.87 Q (B) D = 0.77 to 0.97 Q (C) D = 0.97 to 1.22 Q (D) D = 1.22 to 1.33 Q

Last Answer : (C) D = 0.97 to 1.22 Q

If L, B and D length, breadth and depth of water in a rectangular sedimentation tank of total discharge Q, the settling velocity, is (A) Q/H(B) Q/D(C) Q/(D × B) (D) Q/(L × B)

Description : If L, B and D length, breadth and depth of water in a rectangular sedimentation tank of total  discharge Q, the settling velocity, is  (A) Q/H (B) Q/D (C) Q/(D × B)  (D) Q/(L × B) 

Last Answer : (D) Q/(L × B) 

If Nf , Nd and H are total number flow channels, total number of potential drops and total hydraulic head differences respectively, the discharge q through the complete flow is given by (where K is a constant) (A) q = (Nf/Nd) (B) q = KH (Nd/(Nf ) (C) q = KH (Nf/Nd) (D) q = KH Nf/Nd)

Description : If Nf , Nd and H are total number flow channels, total number of potential drops and total hydraulic head differences respectively, the discharge q through the complete flow is given by (where K is a constant) (A) q = (Nf/Nd) (B) q = KH (Nd/(Nf ) (C) q = KH (Nf/Nd) (D) q = KH Nf/Nd)

Last Answer : Answer: Option C

If is unit weight of water, Q the discharge in cumecs, H the pump, the H.P. of the motor is (A) H.P. = /75 (B) H.P. = /4500 (C) H.P. = /75 H (D) H.P. = /4500 H

Description : If is unit weight of water, Q the discharge in cumecs, H the pump, the H.P. of the motor is (A) H.P. = /75 (B) H.P. = /4500 (C) H.P. = /75 H (D) H.P. = /4500 H

Last Answer : Answer: Option A

The error in discharge (dQ/Q) to the error in measurement of head (dH/H) over a rectangular notch is given by (A) dQ/Q = (1/2) × (dH/H) (B) dQ/Q = (3/4) × (dH/H) (C) dQ/Q = (dH/H) (D) dQ/Q = (3/2) × (dH/H)

Description : The error in discharge (dQ/Q) to the error in measurement of head (dH/H) over a rectangular notch is given by (A) dQ/Q = (1/2) × (dH/H) (B) dQ/Q = (3/4) × (dH/H) (C) dQ/Q = (dH/H) (D) dQ/Q = (3/2) × (dH/H)

Last Answer : Answer: Option D

The discharge through a large rectangular orifice is given by (where H1 = Height of the liquid above the top of the orifice, H2 = Height of the liquid above the bottom of the orifice, b = Breadth of the orifice, and Cd = Coefficient of discharge) (A) Q = (2/3) Cd × b × (2g) × (H2 - H1) (B) Q = (2/3) Cd × b × (2g) × (H2 1/2 - H1 1/2) (C) Q = (2/3) Cd × b × (2g) × (H2 3/2 - H1 3/2) (D) Q = (2/3) Cd × b × (2g) × (H2 2 - H1 2 )

Description : The discharge through a large rectangular orifice is given by (where H1 = Height of the liquid above the top of the orifice, H2 = Height of the liquid above the bottom of the orifice, b = Breadth of the orifice, and Cd = Coefficient of ... H1 3/2) (D) Q = (2/3) Cd b (2g) (H2 2 - H1 2 )

Last Answer : Answer: Option C

149 The power transmitted through a pipe is (where w = Specific weight in N/m3 , and Q = Discharge in m 3 /s) (A) w × Q × H (B) w × Q × hf (C) w × Q (H - hf ) (D) w × Q (H + hf )

Description : 149 The power transmitted through a pipe is (where w = Specific weight in N/m3 , and Q = Discharge in m 3 /s) (A) w × Q × H (B) w × Q × hf (C) w × Q (H - hf ) (D) w × Q (H + hf )

Last Answer : Answer: Option C

The error in discharge (dQ/Q) to the error in measurement of head (dH/H) over a triangular notch is given by (A) dQ/Q = 3/2 × (dH/H) (B) dQ/Q = 2 × (dH/H) (C) dQ/Q = 5/2 × (dH/H) (D) dQ/Q = 3 × (dH/H)

Description : The error in discharge (dQ/Q) to the error in measurement of head (dH/H) over a triangular notch is given by (A) dQ/Q = 3/2 × (dH/H) (B) dQ/Q = 2 × (dH/H) (C) dQ/Q = 5/2 × (dH/H) (D) dQ/Q = 3 × (dH/H)

Last Answer : Answer: Option C

If 5^(3x^2 log10 2) = 2^((x+1/2)log10 25), then the value of x is: -Maths 9th

Description : If 5^(3x^2 log10 2) = 2^((x+1/2)log10 25), then the value of x is: -Maths 9th

Last Answer : (d) \(-rac{1}{3}\)\(5^{{3x^2}log_{10}2}\) = 2\(\big(x+rac{1}{2}\big)\)log10 25⇒ \(5^{{3x^2}log_{10}2}\) = 2\(\big(rac{2x+1}{2}\big)\) x log10 5 = 2(2x+1)log10 5⇒ \(5^{{3x^2}log_{10}2}\) = 2(2x+1)log2 5. ... aloga x = x]⇒ 3x2 = 2x + 1 ⇒ 3x2 - 2x - 1 = 0 ⇒ (x - 1) (3x + 1) = 0⇒ x = 1, \(-rac{1}{3}\)

What are the roots of the equation log10 (x^2 – 6x + 45) = 2? -Maths 9th

Description : What are the roots of the equation log10 (x^2 – 6x + 45) = 2? -Maths 9th

Last Answer : answer:

Solve for x : log10 [log2 (log39)] = x -Maths 9th

Description : Solve for x : log10 [log2 (log39)] = x -Maths 9th

Last Answer : answer:

he acentric factor of a materical, 'ω', is defined as ω = -log10(Prsat)Tr- 1 = 0.7, where, Prsat = reduced vapor pressure, Tr = reduced temperature. The value of acentric factor is always (A) > 2 (B) < 1 (C) > 1 (D) < 3

Description : he acentric factor of a materical, 'ω', is defined as ω = -log10(Prsat)Tr- 1 = 0.7, where, Prsat = reduced vapor pressure, Tr = reduced temperature. The value of acentric factor is always (A) > 2 (B) < 1 (C) > 1 (D) < 3

Last Answer : (B) < 1

06. The formula for discharge over a sharp-crested weir and Ogee weir is same as that of a rectangular weir. A) Agree B) Disagree

Description : 06. The formula for discharge over a sharp-crested weir and Ogee weir is same as that of a rectangular weir. A) Agree B) Disagree

Last Answer : A

The Francis formula for the discharge over Cipoletti weir is (A) 1.84 LH1/2 (B) 1.84 LH (C) 1.84 LH3/2 (D) 1.84 LH5/

Description : The Francis formula for the discharge over Cipoletti weir is (A) 1.84 LH1/2 (B) 1.84 LH (C) 1.84 LH3/2 (D) 1.84 LH5/

Last Answer : Answer: Option C

According to Chezy's formula, the discharge through an open channel is (where A = Area of flow, C = Chezy's constant, m = Hydraulic mean depth, and i = Uniform slope in bed) (A) A × m × i) (B) C × m × i) (C) AC × m × i) (D) mi × A × C)

Description : According to Chezy's formula, the discharge through an open channel is (where A = Area of flow, C = Chezy's constant, m = Hydraulic mean depth, and i = Uniform slope in bed) (A) A × m × i) (B) C × m × i) (C) AC × m × i) (D) mi × A × C)

Last Answer : Answer: Option C

According to Chezy's formula, the discharge through an open channel is (where A = Area of flow, C = Chezy's constant, m = Hydraulic mean depth, and i = Uniform slope in bed) (A) A × m × i) (B) C × m × i) (C) AC × m × i) (D) mi × A × C)

Description : According to Chezy's formula, the discharge through an open channel is (where A = Area of flow, C = Chezy's constant, m = Hydraulic mean depth, and i = Uniform slope in bed) (A) A × m × i) (B) C × m × i) (C) AC × m × i) (D) mi × A × C)

Last Answer : Answer: Option C

According to Bazin's formula, the discharge over a rectangular weir is mL2g x H 3/2where m is equal to (A) 0.405 + (0.003/H) (B) 0.003 + (0.405/H) (C) 0.405 + (H/0.003) (D) 0.003 + (H/0.405)

Description : According to Bazin's formula, the discharge over a rectangular weir is mL2g x H 3/2where m is equal to (A) 0.405 + (0.003/H) (B) 0.003 + (0.405/H) (C) 0.405 + (H/0.003) (D) 0.003 + (H/0.405)

Last Answer : Answer: Option A

According to Manning's formula, the discharge through an open channel is (where M = Manning's constant) (A) A × M × m 1/2 × i2/3 (B) A × M × m 2/3 × i1/2 (C) A 1/2 × M 2/3 × m × i (D) A 2/3 × M 1/3 × m ×

Description : According to Manning's formula, the discharge through an open channel is (where M = Manning's constant) (A) A × M × m 1/2 × i2/3 (B) A × M × m 2/3 × i1/2 (C) A 1/2 × M 2/3 × m × i (D) A 2/3 × M 1/3 × m ×

Last Answer : Answer: Option B

Why was Elizabeth surprised when she met Darcy's sister?

Description : Why was Elizabeth surprised when she met Darcy's sister?

Last Answer : Need answer

Explain the factors which affect rate of filtration by Darcy’s law.

Description : Explain the factors which affect rate of filtration by Darcy’s law.

Last Answer : According to Darcy's Law, Where  v = volume of filtrate  K= permeability coefficient & is dependent on filter medium & filter cake.  A = Area of filter bed ... filtration. As the filtration process proceeds, thickness of cake increases which decreases the rate of filtration.