Runoff is the quantity of water which flows
(A) In sewer pipes
(B) Due to leakage in pipes
(C) In rivers
(D) None of these

1 Answer

Answer :

(C) In rivers

Related questions

Description : ¾th or ¼th extra space is left in sewer pipes at maximum discharge for A. Low estimates of the average and maximum flows B. Large scale infiltration of storm water C. Unexpected increase in population D. All the above

Last Answer : ANS: D

Description : Sewer pipes are designed for maximum discharge with 25% to 33% vacant cross-sectional area for A. Unexpected large scale infiltration of stream water B. Unexpected increase in the population C. Under estimates of maximum and average flows D. All of the above

Last Answer : ANS: D

Description : What form of runoff is water that flows down a slope within the upper layers of the soil rather than on top of them? w) interflow x) extraflow y) endoflow z) detrital runoff

Last Answer : ANSWER: W -- INTERFLOW

Description : The valves provided at low points of pipes to drain off water quickly under gravity, are called (A) Blow off valves (B) Drain valves (C) Sewer valves (D) All the above

Last Answer : (D) All the above

Description : Sewer pipes are made of (A) Earthen ware (B) Stone ware (C) Refractory clay (D) All the above

Last Answer : Answer: Option B

Description : The sewer pipes A. Carry sewage as gravity conduits B. Are designed for generating self-cleansing velocities at different discharge C. Should resist the wear and tear caused due to abrasion D. All the above

Last Answer : ANS: D

Description : The hammer blow in pipes occurs when (A) There is excessive leakage in the pipe (B) The pipe bursts under high pressure of fluid (C) The flow of fluid through the pipe is suddenly brought to ... valve (D) The flow of fluid through the pipe is gradually brought to rest by closing of the valve

Last Answer : Answer: Option C

Description : Two pipe P & Q fill a tab in 5 hrs and 20 hrs respectively. If both the pipes are open then due to the leakage, it took 30mins more to fill the tab. If the tab is full, how long will it take for the leakage alone to empty the tank? A) 28 B) 24 C) 36 D) 12

Last Answer : C Part filled by(P+Q) in 1 hr = 1/5 + 1/20 = ¼ So P & Q together can fill the tank in 4 hrs. Work done by the leak in 1 hr = 1 / 4 - 2/9 Leak will empty the tank in 36 hrs.

Description : The rainfall on five successive days on a catchment was 3, 6, 9, 5 and 1 cm respectively. If the  -index for the storm can be assumed to be 3 cm/day, the total direct runoff from the catchment due to this storm is (a) 11 cm (b) 24 cm (c) 9 cm (d) 20 cm

Last Answer : (a) 11 cm

Description : Which one of the following tests is used for testing sewer pipes? A. Water test B. Ball test C. Mirror test D. All of these

Last Answer : ANS: D

Description : Pick up the correct statement from the following: A. The water supply pipes carry pure water free from solid particles B. The water supply pipes get clogged if flow velocity is less than self ... carried up and down the hills and valleys D. The sewer pipes are generally laid along level hills

Last Answer : ANS: A

Description : how jasmine root system will effect sewer pipes

Last Answer : Its advisible not to plant them near sewer pipes as they are quite extensive and the root system will always seek the nearest source of moisture, regardless of the form.

Description : Aerobic activity is maximum A. In freshly produced sewage B. At sewer pipes C. In sewer treatment plants D. None of these

Last Answer : ANS: A

Description : Sewer pipes need be checked for A. Minimum flow B. Maximum flow C. Both A. and B. D. None of these

Last Answer : ANS: C

Description : In R.C. sewer pipes, the percentage longitudinal reinforcement to the cross-sectional area of concrete is kept A. 10.0 B. 5.0 C. 2.0 D. 0.25

Last Answer : ANS: D

Description : The porosity of sediments in sewer pipes, is usually taken as A. 0.010 B. 0.011 C. 0.012 D. 0.013

Last Answer : ANS: D

Description : You are asked to design sewer pipes of diameters 0.4 m to 0.9 m at maximum flow, you will assume the sewer flow running at A. Full depth B. Half full C. Two third full D. Three fourth full

Last Answer : ANS: B

Description : Pick up the in-correct statement from the following: A. Manholes are provided in sewer pipes at suitable intervals B. Catch basins are generally provided in sewers for carrying drainage discharge C. Inlets are generally provided in all sewers D. None of these

Last Answer : ANS: C

Description : Hydraulic mean radius is A. Mean radius of sewer B. Difference in heads between two points in circular pipes C. Mean of radii in a pipe line of varying cross -sections D. Cross-sectional area/wetted perimeter

Last Answer : ANS: D

Description : Pick up the correct statement from the following: A. The sewer pipes of sizes less than 0.4 m diameter are designed as running full at maximum discharge B. The sewer pipes of sizes greater than 0.4 m ... discharge C. The minimum design velocity of sewer pipes is taken as 0.8 m/sec D. All the above

Last Answer : ANS: D

Description : Actual lift of a pump is always less than the theoretical lift and is limited by the (A) Specific gravity & temperature of the liquid (B) Leakage & pressure decreasing at higher elevations (C) Frictional resistance through pipes, fittings & passages (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Description : Sharp crested weirs are generally used (A) For large flows (B) For small flows (C) For streams carrying high sediment loads (D) For rivers carrying floating debris

Last Answer : Answer: Option A

Description : The leakage current that flows through a photodiode with no light input ∙ A. dark voltage ∙ B. dark impedance ∙ C. dark power ∙ D. dark current

Last Answer : D. dark current

Description : Leakage current flows through the thyristor in

Last Answer : Leakage current flows through the thyristor in Forward blocking mode and Reverse blocking mode.

Description : Hydrology helps in (A) Predicting maximum flows (B) Deciding the minimum reservoir capacity (C) Forecasting the availability of quantity of water at reservoir site (D) All the above

Last Answer : Answer: Option D

Description : Pick out the wrong statement pertaining to fluid flow. (A) The ratio of average velocity to the maximum velocity for turbulent flow of Newtonian fluid in circular pipes is 0.5 (B) The Newtonian ... at the centre of the pipe (C) Navier-Stokes equation is applicable to the analysis of viscous flows

Last Answer : (A) The ratio of average velocity to the maximum velocity for turbulent flow of Newtonian fluid in circular pipes is 0.5

Description : In case of hydraulically smooth pipe, the resistance to flow depends only on the Reynolds number, whereas for a hydraulically rough pipe, the resistance to flow is governed by the relative roughness. Two pipes are said ... co-efficient for flows at equal Reynold number (D) All (A), (B) & (C)

Last Answer : (C) Friction co-efficient for flows at equal Reynold number

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 : The formula Q = P - K [1.8T + 32] in which Q is runoff, P is annual rain fall in cm, T is mean annual  temperature in centigrade and K is a constant, is known  (A) Justin's formula  (B) Khosla's formula  (C) English formula  (D) Vermule's formula

Last Answer : (B) Khosla's formula 

Description : The runoff is affected by (A) Type of precipitation (B) Rain intensity and duration of rainfall (C) Rain distribution and soil moisture deficiency (D) All the above

Last Answer : Answer: Option D

Description : Runoff is measured in (A) Cubic metres (B) Cubic metres per sec. (C) Cubic metres per minute (D) Cubic metres per hour

Last Answer : Answer: Option B

Description : A runoff river plant (A) Is a medium head scheme (B) Generates power during peak hours only (C) Is suitable only on a perennial river (D) Has no pondage at all

Last Answer : Answer: Option C

Description : A unit hydro graph has one unit of (A) Rainfall duration (B) Rainfall excess (C) Time base of direct runoff (D) Discharge

Last Answer : Answer: Option B

Description : A runoff river plant is (A) A low head scheme (B) A medium head scheme (C) A high head scheme (D) None of the above

Last Answer : Answer: Option A

Description : There is a greater risk of damage of herbicide in protected environments due to a). absorption b). leaching c). runoff d). volatilization

Last Answer : d). volatilization

Description : What Rivers that flows through the center of Pakistan?

Last Answer : Indus River

Description : Which of the following rivers flows between Vindhya and Satpura ranges? (a) Mahanadi (b) Tapi (c) Narmada (d) Chambal

Last Answer : Ans: (c)

Description : Which of the following rivers flows between the Vindhya and Satpura ranges? (a) Narmada (b) Tapti (c) Gandak (d) Godavari

Last Answer : Ans: (a)

Description : Which of the following rivers flows through a rift valley? (a) Cauvery (b) Narmada (c) Kosi (d) Godavari

Last Answer : Ans: (b)

Description : Which of the following rivers flows through Maharashtra and Gujarat ? [CDS 1993] (a) Sabarmati (b) Godavari (c) Mahi (d) Tapti

Last Answer : Ans: (d)

Description : Which one of the following rivers flows across China, India and Bangladesh? (1) Chang Jiang (2) Brahmaputra (3) Indus (4) Ganga

Last Answer : (2) Brahmaputra Explanation: The Brahmaputra is one of the major rivers of Asia, a trans-boundary river whiclh flows through China, India and Bangladesh. With its origin in the Manasarovar Lake region, located in the Himalayas in Tibet as the Yarlung Tsangpo River,it flows into Arunachal Pradesh.

Description : Which of the following rivers flows from East to West and makes an estuary? (1) Yamuna (2) Krishna (3) Narmada (4) Godavari

Last Answer : (3) Narmada Explanation: The Narmada is the largest of all west flowing peninsular rivers. It forms estuary in the Gulf of Khambat. There are several islands in the estuary of the Narmada of which Aliabet is the largest.

Description : Which one of the following rivers flows between Vindhya-Satpura ranges? (1) Chambal (2) Ken (3) Godavari (4) Narmada

Last Answer : (4) Narmada Explanation: The Vindhya Range constitutes the main dividing line between the geological regions of the IndoGangetic Plain and the Peninsula. This range lies north of the Narmada River which flows through a narrow gorge between Vindhya in the north and Satpuras in the south.

Description : Which rivers flows between Vindhya and Satpura ranges

Last Answer : Narmada

Description : Which of the following rivers flows from the sediments in India

Last Answer : Ganga

Description : Which of the following rivers flows from East to West and makes an estuary? (1) Yamuna (2) Krishna (3) Narmada (4) Godavari

Last Answer : Narmada

Description : WASTE WATER ENGINEERING Objective Questions with Answers Q No: 161 The quantity of liquid waste which flows in sewers during the period of rainfall, is known A. Sanitary sewage B. Industrial waste C. Storm sewage D. None of these

Last Answer : ANS: C

Description : Pick up the correct statement from the following:  (A) The internal pressure within a pipe, is caused due to water head and hammer pressure  (B) In pressure pipes with water at rest, the pressure ... (C) Sudden closure of a valve, causes the water hammer pressure  (D) All the above 

Last Answer : (D) All the above 

Description : 19. The water hammer in pipes occurs due to sudden change in the velocity of flowing liquid A) Agree B) Disagree

Last Answer : A