For determining the velocity of flow of underground water, the most commonly used nonempirical formula is
(A) Darcy's formula
(B) Slichter's formula
(C) Hazen's formula
(D) Lacy'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
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
Description : Hazen’s formula VS = 418 (GS – Gw)d [(3T + 70)/100] is used for the settlement velocity of the particles of diameter A. Less than 0.01 mm B. Less than 0.05 mm C. Less than 0.1 mm D. Greater than 0.1 mm
Last Answer : ANS: D
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
Description : 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
Last Answer : (D) Dupuits formula
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
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
Description : While determining the yield of open wells by the pumping test (A) Velocity of recharging water, increases with depression head (B) Depression head resulting at critical velocity, is called critical ... (D) Maximum safe yield of an open well, is expected at critical depression head
Last Answer : (D) Maximum safe yield of an open well, is expected at critical depression head
Description : Pick up the incorrect statement from the following: (A) The net amount of water which joins the surface streams in a catchment, is known as surface run-off (B) The amount of water which ... over the catchment, is termed as the yield of the drainage basin (D) None of these
Last Answer : (D) None of these
Description : Which of the following is an example of laminar flow? (A) Underground flow (B) Flow past tiny bodies (C) Flow of oil in measuring instruments (D) All of these
Description : Why was Elizabeth surprised when she met Darcy's sister?
Last Answer : Need answer
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.
Description : Based on Darcy’s law, discuss different factors which affect rate of filtration
Last Answer : This is also called as theory of filtration which gives idea about factors affecting rate of filtration through the filter medium. Any fluid while passing through porous medium offers resistance ... the filtration process proceeds, thickness of cake increases which decreases the rate of filtration.
Description : State Darcy’s Law of permeability.
Last Answer : It states that for laminar flow, the rate of flow or discharge per unit time is directly proportional to hydraulic gradient. q= KiA or V= / = Ki Where q= discharge per unit time. , A= total cross- ... , v= velocity of flow, h= differential head of water = h1-h2, L= length of soil sample.
Description : State the Darcy’s law of permeability with expression. Hence define coefficient of permeability.
Last Answer : Darcy's law of permeability: It states that for laminar flow, the rate of flow or discharge per unit time is directly proportional to hydraulic gradient. Expression: q = KiA / = Ki V = Ki ... velocity of flow under a unit hydraulic gradient through a soil. Mathematically: K = V/i
Description : Most commonly used joint in the underground pipe lines is the (A) Sleeve joint (B) Coupling (C) Flange (D) Expansion joint
Last Answer : (A) Sleeve joint
Description : The material commonly used for sheaths of underground cables is (a) lead (b) rubber (c) copper (d) iron
Last Answer : (a) lead
Description : Most commonly employed test for determining the antibody titers for Newcastle disease infection in B A. Agar gel precipitation test B. Hemagglutination inhibition C. Polymerase chain reaction D. None of these
Last Answer : Hemagglutination inhibition
Description : Most commonly employed test for determining the antibody titers for AI infection is B A. Agar gel precipitation test B. Hemagglutination inhibition C. Polymerase chain reaction D. None of these
Description : If is the rugosity coefficient, is the bed slope of sewer, the velocity of flow in m/sec may be obtained by the formula V = (1/n) r2/3 s1/2 evolved by A. Chezy B. Manning C. Bazin D. Kutter
Last Answer : ANS: B
Description : In Chezy’s formula V = C rs for calculating the velocity of flow in circular sewer of diameter running full, the value of hydraulic mean radius is A. D B. D /2 C. D/3 D. D/4
Description : Most commonly used pump for lifting water in water supply mains, is (A) Axial flow pump (B) Reciprocating pump (C) Rotary type pump (D) Centrifugal pumps
Last Answer : (A) Axial flow pump
Description : What is the formula for determining profit ?
Last Answer : profit = sale price-purchase price.
Description : What is the formula for determining the area of a parallelogram ?
Last Answer : The formula for determining the area of a parallelogram is land x height
Description : What is the formula for determining the area of an isosceles triangle ?
Last Answer : : The formula for determining the area of an isosceles triangle is a / 4√ (4b² -a²) where , a = land ; b = the other arm
Description : What is the formula for determining parallel range ?
Last Answer : Formula for determining parallelogram 2 × ( sum of adjacent arms)
Description : What is the formula for determining the angle of a square ?
Last Answer : The formula for determining the angle of a square is ুর 2 × the length of one arm
Description : What is the formula for determining the range of a square ?
Last Answer : : The formula for determining the perimeter of a square is 4 × the length of one arm
Description : What is the formula for determining the area of a square ?
Last Answer : : The formula for determining the area of a square (one arm) 6
Description : What is the formula for determining the angle of a rectangle ?
Last Answer : The formula for determining the angle of a rectangle is √ ( length ² + width ).
Description : What is the formula for determining the perimeter of a rectangle ?
Last Answer : Formula 2 for determining the perimeter of a rectangle (length + width)
Description : What is the formula for determining the area of a rectangle ?
Last Answer : The formula for determining the area of a rectangle is length × width
Description : What is the formula for determining the sum ?
Last Answer : answer : Determining the sum of serial numbers ********************* Sutra (when starting from 1) Sum S = half of the last number * (last number +1) eg: 1 to 100 What is the sum of the serial ... = 5 Square feet 3 1 Sqft = 144 Square inch 3 1 Chain = 22 Yards 3 1 Squarechain = 484 Square yards 3
Description : What is the formula for determining the power in a circuit ?
Last Answer : The formula for circuit power is P = V * I watt here , P is power V is voltage I is current.
Description : What is the formula for determining the efficiency of generator ?
Last Answer : Generator efficiency = (effective power * 100) / given power
Last Answer : circle circumference = 2 pi r . Pi = 3.1416 .
Last Answer : Range Determination Formula: (Maximum Number - Minimum Number) +1
Last Answer : Average determination formula: sum of data / number of data.
Last Answer : The formula for determining the area of a parallelogram is land * height.
Last Answer : The area to find the area of rhombus is half the product of the two ears.
Last Answer : The formula for determining the area of a triangle is 1/2 * land * height.
Description : The correct formula for determining an actual CPC as when an advertisement is clicked can be mathematically derived as __________. a. Position * QS b. Impressions * Clicks c. Clicks / Impressions d. QS * Max CPC (bid)
Last Answer : d. QS * Max CPC (bid)
Description : What is the formula for determining total reactance in a series circuit where the values of XC and XL are known?
Last Answer : X = XL – XC or X = XC - XL
Description : A practical formula for determining the thickness of insulation between low voltage and high voltage windings is (a) 1 + 0.2 kVmm (6) 2 + 0.5 kVmm (c) 4 + 0.7 kV mm (d) 5 + 0.9 kV mm
Last Answer : (d) 5 + 0.9 kV mm
Description : Which forces is most powerful in determining movement of wind including its velocity? -Do You Know?
Last Answer : answer: