Description : 09. According to Bazin, the coefficient of discharge varies with the height of water over the sill of a weir. A) Correct B) Incorrect
Last Answer : A
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
Description : The discharge over a rectangular notch is (where b = Width of notch, and H = Height of liquid, above the sill of the notch) (A) (2/3) Cd × b × gH) (B) (2/3) Cd × b × g) × H (C) (2/3) Cd × b × g) × H 3/2 (D) (2/3) Cd × b × g) × H
Last Answer : Answer: Option C
Description : The discharge over a rectangular weir, considering the velocity of approach, is (whereH1 = H + Ha = Total height of water above the weir, H = Height of water over the crest of the weir, and Ha = Height of water due to velocity of ... 2g [H1 2 - Ha 2 ] (D) (2/3) Cd L. 2g [H1 5/2 - Ha 5/2]
Last Answer : Answer: Option B
Description : When the coefficient of discharge (Cd) is 0.623, then the general equation for discharge over a rectangular weir is (A) 1.84(L - 0.1nH)H 3/2 (B) 1.84(L - nH)H 2 (C) 1.84(L - 0.1nH)H 5/2 (D) 1.84(L - nH)H 3
Last Answer : Answer: Option A
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
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)
Description : The top of the weir over which the water flows is known as (A) Sill or crest (B) Nappe or vein (C) Orifice (D) None of these
Description : 4 The sheet of water flowing over a notch or a weir is known as (A) Sill or crest (B) Nappe or vein (C) Orifice (D) None of thes
Description : The upper surface of a weir over which water flows is known is (A) Crest (B) Nappy (C) Sill (D) Weir top
Description : The length of a liquid stream while flowing over a weir __________ at the ends of the sill. (A) Expands (B) Does not change (C) Contracts (D) None of these
Description : An error of 1% in measuring head over the crest of the notch (H) will produce an error of __________ in discharge over a triangular notch, (A) 1 % (B) 1.5 % (C) 2 % (D) 2.5 %
Description : An error of 1% in measuring head over the apex of the notch (H) will produce an error of _________ in discharge over a triangular notch. (A) 1 % (B) 1.5 % (C) 2 % (D) 2.5 %
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)
Description : A weir is used to measure the large water discharge rate from a river or from an open channel. A weir is not of __________ shape. (A) Circular (B) Rectangular (C) Triangular (D) Trapezoidal
Last Answer : (A) Circular
Description : In a broad-crested weir, the discharge is maximum if the head of water on the downstream side of weir is __________ the head of water on the upstream side of weir. (A) Equal to (B) One-third (C) Two-third (D) Three-fourth
Description : A depth-discharge relationship of the canal section is maintained at a notch fall because the sill of the notches is : a) Level with downstream canal bed b) Below the upstream canal bed c) Level with upstream canal bed d) Above the upstream canal bed
Last Answer : c) Level with upstream canal bed
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/
Description : The maximum discharge over a broad crested weir is (A) 0.384 Cd × L × H1/2 (B) 0.384 Cd × L × H3/2 (C) 1.71 Cd × L × H1/ (D) 1.71 Cd × L × H 3/
Description : A rectangular beam 20 cm wide is subjected to a maximum shearing force of 10,000 kg, the corresponding maximum shearing stress being 30 kg/cm2 . The depth of the beam is (A) 15 cm (B) 20 cm (C) 25 cm (D) 30 cm
Last Answer : (C) 25 cm
Description : The Cipoletti weir is a __________ weir. (A) Rectangular (B) Triangular (C) Trapezoidal (D) Circular
Description : Most important method for calculating discharge for planning a water supply project, is (A) Velocity area method (B) Weir or spillway method (C) Use of venturi-meter (D) Using power plant consumption
Last Answer : (A) Velocity area method
Description : A control meter is preferred to a weir because (A) It measures the discharge even in silt Leiden streams (B) The velocity of approach of the channel increases above the control, and thus removes the silt completely (C) It is not damaged by floating debris (D) All the above
Description : The projections of head or sill of a door or window frame are (A) Transoms (B) Horns (C) Stops (D) Chock
Description : The maximum shear stress (qmax) in a rectangular beam is (A) 1.25 times the average (B) 1.50 times the average (C) 1.75 times the average (D) 2.0 times the average
Description : The maximum shear stress in rectangular beam is _____________________times of average shear stress. (a) 1.15 (b) 1.25 (c) 1.50 (d) 1.75
Last Answer : (c) 1.50
Description : The discharge over a rectangular notch is (A) Inversely proportional to H 3/2 (B) Directly proportional to H 3/2 (C) Inversely proportional to H 5/2 (D) Directly proportional to H 5/2
Description : The discharge over the trapezoidal notch is equal to the discharge over the rectangular notch __________ the discharge over the triangular notch. (A) Plus (B) Minus (C) Divide (D) None of these
Description : Rise of water table in cohesion-less soils upto ground surface reduces the net ultimate bearing capacity approximately by (A) 25 % (B) 50 % (C) 75 % (D) 90 %
Last Answer : (B) 50 %
Description : If voids ratio is 0.67, water content is 0.188 and specific gravity is 2.68, the degree of saturation of the soil, is (A) 25 % (B) 40 % (C) 60 % (D) 75 %
Description : If the ruling gradient on any highway is 3%, the gradient provided on the curve of 300 metre radius, is (A) 2.00 % (B) 2.25 % (C) 2.50 % (D) 2.75 %
Description : Based on its dry weight, a freshly felled tree may contain water (A) 25 % (B) 50 % (C) 75 % (D) 100 %
Description : The discharge through a V-notch weir varies as (A) H3/2 (B) H1/2 (C) H5/2 (D) H2/3
Last Answer : (C) H5/2
Description : Venturimeters, orificemeters and nozzles are used to measure the fluid discharge from a pipeline. The average fluid velocity in a pipeline can be measured by a/an (A) Weir (B) Hot wire anemometer (C) Cup and vane anemometer (D) None of these
Last Answer : (B) Hot wire anemometer
Description : The discharge in an open channel corresponding to critical depth is (A) Zero (B) Minimum (C) Maximum (D) None of these
Description : Flow measurement in an open channel is done by a/an (A) Venturimeter (B) Orificemeter (C) Weir (D) Rotameter
Last Answer : (C) Weir
Description : The most suitable flow measuring device for the fluid flow measurement in a very large diameter pipeline is a (A) Weir (B) Pitot tube (C) Kennison nozzle (D) V-notch
Last Answer : (B) Pitot tube
Description : For maximum strength and durability minimum percentage of cement, by weight is (A) 15 % (B) 20 % (C) 25 % (D) 30 %
Description : The percentage of voids in cement is approximately (A) 25 % (B) 40 % (C) 60 % (D) 80 %
Last Answer : (B) 40
Description : If 1500 g of water is required to have a cement paste 1875 g of normal consistency, the percentage of water is, (A) 20 % (B) 25 % (C) 30 % (D) 35 %
Last Answer : (B) 25 %
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)
Description : In a Sarda type fall, rectangular crest is used for discharge upto (A) 6 cumecs (B) 10 cumecs (C) 14 cumecs (D) 20 cumecs
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 )
Description : The discharge through a channel of rectangular section will be maximum, if (A) Its depth is twice the breadth (B) Its breadth is twice the depth (C) Its depth is thrice the breadth (D) Its breadth is thrice the depth
Description : Consider the following statements in respect of critical flow in a wide rectangular channel: 1. The specific energy is minimum for a given discharge. 2. The discharge is maximum for a given specific energy 3. The specific force is minimum for a ... b) 1, 2, 3 & 4 (c) 1, 2 & 4 only (d) 2, 3 & 4 only
Last Answer : (b) 1, 2, 3 & 4
Description : The average age of the men in a team is 76 years and that of the women is 75 years. The average age for the whole team is. A) 75 yrs B) 75.5 yrs C) Cannot be computed with the given information D) None of the above
Last Answer : C) Clearly to find the average, we ought to number of men, women or total persons in the class, neither of which has been given. So the data provided is inadequate.
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
Description : Percentage of water in buffalo milk is:- a. 65-67 % b. 70-75 % c. 80-85 % d. 87-90 %
Last Answer : d. 87-90 %
Description : Which one of the following is not a definition of error ? (A) It refers to the discrepancy between a computed, observed or measured value and the true, specified or theoretically correct value. (B) It ... to fail. (D) It refers to human action that results in software containing a defect or fault.
Last Answer : The input, or clock pulse.
Description : For design of sewers, percentage of sewage discharge is assumed A. 65 to 70% B. 70 to 75% C. 75 to 80% D. 85%
Last Answer : ANS: C