Description : As compared to crest of the normal portion of the weir, the crest of the under sluice portion of weir is kept at (A) Lower level (B) Higher level (C) Same level (D) Any of the above depending on the design
Last Answer : Answer: Option A
Description : The main function of a divide wall is to (A) Control the silt entry in the canal (B) Prevent river floods from entering the canal (C) Separate the under-sluices from weir proper (D) Provide smooth flow at sufficiently low velocity
Last Answer : Answer: Option C
Description : How about discussing the topic of "Blacks can't swim"?
Last Answer : Sounds ridiculous.
Description : I'm found in the sea and on land but I can't walk or swim. I travel by foot but I'm toe less. No mater where I go I'm never far from home. What am I ? -Riddles
Last Answer : A snail.
Description : How can lystrosaurus fossils be found on all continents if it cant swim?
Last Answer : What is the answer ?
Description : Why can't some people swim?
Last Answer : Some people can't swim because they haven't been taught how to. Others can't because they have a physical condition that stops them from doing so.
Description : What animals can't swim?
Last Answer : It seems to me the only land animal that can't swim is the land tortoise. I am only saying this because I believe it is too heavy to say afloat and its feeble arms and legs couldn't possibly ... it's head above water. Other animals might include: Coral and some insects (seems like they just drown).
Description : The most effective arrangement for diverting excess storm water into a natural drainage, is A. Leaping weir B. Overflow weir C. Siphon spill way D. None of these
Last Answer : ANS: C
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 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 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 : 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 : m and n are monsoon duration factor and catchment factor respectively. If P is yearly rainfall in cm, runoff can be calculated by (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 : 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
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
Last Answer : Answer: Option D
Description : divide wall is provided (A) At right angle to the axis of weir (B) Parallel to the axis of weir and upstream of it (C) Parallel to the axis of weir and downstream of it (D) At an inclination to the axis of weir
Description : The flow of water after spilling over the weir crest in chute spillway and side channel spillway respectively are (A) At right angle and parallel to weir crest (B) Parallel and at right angle to weir crest (C) Parallel to weir crest in both (D) At right angle to weir crest in both
Description : Generally the weir is aligned at right angles to the direction of the main river current because (A) It ensures less length of the weir (B) It gives better discharging capacity (C) It is economical (D) All of the above
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
Description : 05. When the end contractions of the weir are suppressed, then number of end contractions (n) are taken as zero. A) Agree B) Disagree
Description : 08. The difference between the notch and weir is that the notch is of bigger size and the weir is of a smaller size. A) Agree B) Disagree
Last Answer : B
Description : 13. In a sharp-crested weir, the thickness of the weir is kept less than half of the height of water above the crest of the weir. A) True B) False
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
Description : A pipe of length more than double the diameter of orifice fitted externally or internally to the orifice is called a (A) Notch (B) Weir (C) Mouthpiece (D) Nozzle
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 : 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 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 : A weir, generally, used as a spillway of a dam is (A) Narrow crested weir (B) Broad crested weir (C) Ogee weir (D) Submerged weir
Description : A structure used to dam up a stream or river over which the water flows is called (A) Orifice (B) Notch (C) Weir (D) Dam
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 : 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 : 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 : 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
Description : A weir is said to be broad crested weir, if the width of the crest of the weir is ________ half the height of water above the weir crest. (A) Equal to (B) Less than (C) More than (D) None of these
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 : The Cipoletti weir is a __________ weir. (A) Rectangular (B) Triangular (C) Trapezoidal (D) Circular
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 : When the water level on the downstream side of a weir is above the top surface of a weir, the weir is known as (A) Narrow-crested weir (B) Broad-crested weir (C) Ogee weir (D) Submerged weir
Description : An opening in the side of a tank or vessel such that the liquid surface with the tank is below the top edge of the opening, is called (A) Weir (B) Notch (C) Orifice (D) None of these
Description : A weir is said to be narrow-crested weir, if the width of the crest of the weir is __________ half the height of water above the weir crest. (A) Equal to (B) Less than (C) More than (D) None of these
Description : The absolute percentage error in the computed discharge over a rectangular weir corresponding to an absolute error of 1.5 % in the measurement of head over the sill of the weir would be : (a) 1.5 (b) 2.25 (c) 2.5 (d) 3.75
Last Answer : (b) 2.25
Description : Differentiate any four points between notch and weir.
Last Answer : Sr.No. Notch Weir 1 It is an opening provided on one side of the tank or reservoir with free surface of liquid below the top edge of the opening. It is a structure which ... Trapezoidal, stepped notch. e. g. According to shape, discharge, width of crest, nature of crest.
Description : Differentiate between weir and barrage
Last Answer : Weir Barrage Initial cost of weir is low Initial cost of barrage is high. Area of submergence is more due to large afflux. Area of submergence less due to less afflux ... barrage most of water storage is done by shutter and very less or nil portion of water is by crest
Description : Enlist types of weir and explain any one in detail.
Last Answer : Types of weirs are a) Based on materials of construction 1) Masonry weir 2) Rock-fill weir 3) Concrete weir b) Based on use and function 1) Storage weir 2) Pick- ... Canal has to run idle c) The terrain is geographically difficult so that canal alignment is very costly or impossible
Description : How does the swim bladder of fishes work allowing fishes to control their depth under water?
Last Answer : From Hydrostatics it is known that an object does not sink if its density is equal or less than the density of the fluid in which it is immersed. When the swim bladder is filled by gas it ... and when it is emptied this density is increased. So this mechanism controls the fish depth under water.
Description : Mr. Steve lives in a mansion. He is very rich. He's so rich that he has a maid, a cook, a butler, and a lifeguard. Yesterday, Mr. Steve was found dead. The chief detective was ... one chance because if you choose incorrectly, you accuse the wrong person and the true killer gets away. -Riddles
Last Answer : The postman was lying. If the chief detective was coming from church, then you know that the post office doesn't deliver mail on Sunday.
Description : Can camels swim?
Last Answer : A: Yes, camels are capable swimmers. They can paddle through water using their long legs and use their humps for buoyancy. However, swimming is not their preferred method of travel.
Last Answer : A: Yes, camels are capable swimmers. They can use their long legs and natural buoyancy to paddle through water, although they are more adapted to desert environments.