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 %

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 %
by

1 Answer

Answer :

Answer: Option D
by

Related questions

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 : 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 %

Last Answer : Answer: Option D

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

The discharge over a triangular 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 a triangular 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

Last Answer : Answer: Option D

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

If the head over the triangular notch is doubled, the discharge will increase by __________ times. (A) 2 (B) 2.828 (C) 5.657 (D) 4

Description : If the head over the triangular notch is doubled, the discharge will increase by __________ times. (A) 2 (B) 2.828 (C) 5.657 (D) 4

Last Answer : (C) 5.657

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 : 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

Last Answer : Answer: Option A

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

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

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 approach) (A) (2/3) Cd × L. 2g [H1 - Ha] (B) (2/3) Cd × L. 2g [H1 3/2 - Ha 3/2] (C) (2/3) Cd × L. 2g [H1 2 - Ha 2 ] (D) (2/3) Cd × L. 2g [H1 5/2 - Ha 5/2]

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

If the coefficient of discharge is 0.6, then the discharge over a right angled notch is (A) 0.417 H 5/2 (B) 1.417 H 5/2 (C) 4.171 H 5/2 (D) 7.141 H 5/2

Description : If the coefficient of discharge is 0.6, then the discharge over a right angled notch is (A) 0.417 H 5/2 (B) 1.417 H 5/2 (C) 4.171 H 5/2 (D) 7.141 H 5/2

Last Answer : Answer: Option B

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 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

Last Answer : Answer: Option B

What is the value of included angle of a triangular notch for maximum discharge? (A) 30° (B) 60° (C) 90° (D) 120°

Description : What is the value of included angle of a triangular notch for maximum discharge? (A) 30° (B) 60° (C) 90° (D) 120°

Last Answer : (C) 90°

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

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

The discharge over a right angled notch is (where H = Height of liquid above the apex of notch) (A) (8/15) Cd. 2g. H (B) (8/15) Cd. 2g. H3/2 (C) (8/15) Cd. 2g. H² (D) (8/15) Cd. 2g. H5/2

Description : The discharge over a right angled notch is (where H = Height of liquid above the apex of notch) (A) (8/15) Cd. 2g. H (B) (8/15) Cd. 2g. H3/2 (C) (8/15) Cd. 2g. H² (D) (8/15) Cd. 2g. H5/2

Last Answer : Answer: Option D

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 : 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

Last Answer : Answer: Option B

A notch is used to measure __________ of liquids. (A) Pressure (B) Discharge (C) Velocity (D) Volume

Description : A notch is used to measure __________ of liquids. (A) Pressure (B) Discharge (C) Velocity (D) Volume

Last Answer : Answer: Option B

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 : In a Sarda type fall, rectangular crest is used for discharge upto (A) 6 cumecs (B) 10 cumecs (C) 14 cumecs (D) 20 cumecs

Last Answer : Answer: Option C

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

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

If the expected time of completion of a project is 60 weeks with a standard deviation of 5 weeks, the probability of completing the project in 50 weeks and 65 weeks respectively will be (A) 2.3% and 84.1% (B) 97.7% and 84.1% (C) 97.7 % and 15.9% (D) 15.9% and 97.7%

Description : If the expected time of completion of a project is 60 weeks with a standard deviation of 5 weeks, the probability of completing the project in 50 weeks and 65 weeks respectively will be (A) 2.3% and 84.1% (B) 97.7% and 84.1% (C) 97.7 % and 15.9% (D) 15.9% and 97.7%

Last Answer : (A) 2.3% and 84.1%

1% of voids in a concrete mix would reduce its strength by about (A) 5 % (B) 10 % (C) 15 % (D) 20 %

Description : 1% of voids in a concrete mix would reduce its strength by about (A) 5 % (B) 10 % (C) 15 % (D) 20 %

Last Answer : (A) 5 %

Side face reinforcement shall not exceed [ A ] 0.1% of total cross sectional area [ B ] 0.2% of total cross sectional area [ C ] 0.1% web area [ D ] 0.2 % web area.

Description : Side face reinforcement shall not exceed [ A ] 0.1% of total cross sectional area [ B ] 0.2% of total cross sectional area [ C ] 0.1% web area [ D ] 0.2 % web area.

Last Answer : [ C ] 0.1% web area

If an error of `k %` is made in measuring the radius of a sphere, then percentage error in its volume. k% (b) 3k% (c) 3k% (d) `k/3%`

Description : If an error of `k %` is made in measuring the radius of a sphere, then percentage error in its volume. k% (b) 3k% (c) 3k% (d) `k/3%`

Last Answer : If an error of `k %` is made in measuring the radius of a sphere, then percentage error in its volume. k% (b) 3k% ... A. `2%` B. `4%` C. `6%` D. `8%`

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

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

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 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

A centrifugal pump has the following specifications: Power = 4 H.P.; Speed = 800 rpm Head = 8 metres Flow = 1000 litres/minutes. If its speed is halved, the new discharge will be __________ litres/minute. (A) 500 (B) 200 (C) 1000 (D) 750

Description : A centrifugal pump has the following specifications: Power = 4 H.P.; Speed = 800 rpm Head = 8 metres Flow = 1000 litres/minutes. If its speed is halved, the new discharge will be __________ litres/minute. (A) 500 (B) 200 (C) 1000 (D) 750

Last Answer : (A) 500

The discharge through a V-notch weir varies as (A) H3/2 (B) H1/2 (C) H5/2 (D) H2/3

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

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

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

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 : 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

Last Answer : Answer: Option B

The moment of inertia of a triangular section (height h, base b) about its base, is (A) bh²/12 (B) b²h/12 (C) bh3 /12(D) b 3h/12

Description : The moment of inertia of a triangular section (height h, base b) about its base, is  (A) bh²/12  (B) b²h/12  (C) bh3 /12  (D) b 3h/12 

Last Answer : (C) bh3 /12 

A triangular section having base b, height h, is placed with its base horizontal. If the shear stress at a depth y from top is q, the maximum shear stress is (A) 3S/bh (B) 4S/bh (C) 4b/Sh (D) 3b/bS

Description : A triangular section having base b, height h, is placed with its base horizontal. If the shear stress at a depth y from top is q, the maximum shear stress is (A) 3S/bh (B) 4S/bh (C) 4b/Sh (D) 3b/bS

Last Answer : (A) 3S/bh

The % of ‘K’ in Extracellular fluid is about (A) 1% (B) 2 to 3% (C) 10% (D) 15%

Description : The % of ‘K’ in Extracellular fluid is about (A) 1% (B) 2 to 3% (C) 10% (D) 15%

Last Answer : Answer : A

Mark the correct option a) The MIS account can be close after expiry of one year. b) The MIS account closed after one year but before three year 2 % deduction will be made on initial deposit c) The MIS account closed after expiry of three year 1% deduction will be made . on the initial deposit d) In case of death of the depositor before maturity account may be closed and deposit refunded along with interest up to the month preceding the month in which refund made. e) All the above

Description : Mark the correct option a) The MIS account can be close after expiry of one year. b) The MIS account closed after one year but before three year 2 % deduction will be made on initial deposit ... along with interest up to the month preceding the month in which refund made. e) All the above

Last Answer : e) All the above

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 : 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

Saturated steam at 1 atm is discharged from a turbine at 1200 kg/h. Superheated steam at 300 0C and 1 atm is needed as a feed to a heat exchanger. To produce it, the turbine discharge stream is mixed with superheated steam at 400 0C, 1 atm and specific volume of 3.11 m 3 /kg. Calculate the amount of superheated steam at 300 0C produced and the volumetric flow rate of the 400 0C steam.

Description : Saturated steam at 1 atm is discharged from a turbine at 1200 kg/h. Superheated steam at 300 0C  and 1 atm is needed as a feed to a heat exchanger. To produce it, the turbine discharge ... amount of superheated steam at 300 0C produced and the volumetric flow rate of the  400 0C steam.

Last Answer : Solution 1. Mass balance of water 1200 + m1 = m2 ………………………………………… (1) …………………….1 mark 2. Energy balance (1200 kg/h)(2676 kJ/kg) + m1(3278 kJ/kg)

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 : 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

Last Answer : Answer: Option C

The discharge through a convergent mouthpiece is __________ the discharge through an internal mouthpiece of the same diameter and head of water. (A) Equal to (B) One-half (C) Three fourth (D) Double

Description : The discharge through a convergent mouthpiece is __________ the discharge through an internal mouthpiece of the same diameter and head of water. (A) Equal to (B) One-half (C) Three fourth (D) Double

Last Answer : Answer: Option D

What is the surface area of a right triangular prism with a length of 9 inches and a triangular base measuring 3 inches by 4 inches by 5 inches.?

Description : What is the surface area of a right triangular prism with a length of 9 inches and a triangular base measuring 3 inches by 4 inches by 5 inches.?

Last Answer : Surface area: (2*0.5*3*4)+(3*9)+(4*9)+(5*9) = 120 squareinches

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

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 : 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/

Last Answer : Answer: Option D

An umbrella is made by stitching 10 triangular pieces of cloth of two different colours (see figure), each piece measuring 20 cm, 50 cm and 50 cm. -Maths 9th

Description : An umbrella is made by stitching 10 triangular pieces of cloth of two different colours (see figure), each piece measuring 20 cm, 50 cm and 50 cm. -Maths 9th

Last Answer : Let the sides of each triangular piece be a = 20 cm, b = 50 cm, c = 50 cm

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 : 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

Last Answer : Answer: Option A

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 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

Last Answer : Answer: Option A

The upper surface of a weir over which water flows is known is (A) Crest (B) Nappy (C) Sill (D) Weir top

Description : The upper surface of a weir over which water flows is known is (A) Crest (B) Nappy (C) Sill (D) Weir top

Last Answer : Answer: Option C

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 : 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

Last Answer : Answer: Option C

How do I release a screw whose head is flush with the surface and the notch is so worn down that the screwdriver can't make contact?

Description : How do I release a screw whose head is flush with the surface and the notch is so worn down that the screwdriver can't make contact?

Last Answer : Sometimes I have had success re- tapping the head of the screw. Using a hammer and screwdriver like a chisel. Also a but of wd-40 under the screw helps.

Radio isotopic dating: Error margin 1% of what?

Description : Radio isotopic dating: Error margin 1% of what?

Last Answer : GQ, but another one that is going to give me a headache!

In an experiment, the percentage of error occurred in the measurement of physical quantities A, B, C and D are 1%, 2%, 3% and 4% respectively.

Description : In an experiment, the percentage of error occurred in the measurement of physical quantities A, B, C and D are 1%, 2%, 3% and 4% respectively.

Last Answer : In an experiment, the percentage of error occurred in the measurement of physical quantities A, B, C and D are 1%, 2%, ... % (C) (3/13) % (D) 16 %

Error on franking impression the refund will be claimed by firm/institute within_____ and ___ of less deduction a) two month, 2% b) three month, 4%c) one month, 5% d) six month, 1%.

Description : Error on franking impression the refund will be claimed by firm/institute within_____ and ___ of less deduction. a) two month, 2% b) three month, 4% c) one month, 5% d) six month, 1%

Last Answer : c) one month, 5%

A 0-10 A ammeter has a guaranteed accuracy of 1% of full scale deflection, the limiting error while reading

Description : A 0-10 A ammeter has a guaranteed accuracy of 1% of full scale deflection, the limiting error while reading 2.5 A will be (a) 1% (b) 2% (c) 4% (d) None of these 

Last Answer : A

Measuring with a 30 m chain, 0.01 m too short, introduces (A) Positive compensating error (B) Negative compensating error (C) Positive cumulative error (D) Negative cumulative error

Description : Measuring with a 30 m chain, 0.01 m too short, introduces (A) Positive compensating error (B) Negative compensating error (C) Positive cumulative error (D) Negative cumulative error

Last Answer : (C) Positive cumulative error