Time of concentration
(A) Is the time taken, for precipitation
(B) Duration of rainfall
(C) Time taken for all the ran off to reach the drain
(D) Time taken for the storm water to travel from the most remote point to the drain
Description : The time required by rain water to reach the outlet of drainage basin, is generally called (A) Time of concentration (B) Time of overland flow (C) Concentration time of overland flow (D) Duration of the rainfall
Last Answer : Answer: Option A
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 : A unit hydrograph is a hydrograph of a rain storm of a specified duration resulting from a run-off of (A) 15 mm (B) 20 mm (C) 25 mm (D) 30 mm
Last Answer : Answer: Option B
Description : Pick up the correct statement from the following: (A) The unit hydrograph of a specified unit duration obtained from the past data can be used to obtain the hydrograph of future storms of like duration (B) ... hydrograph may be obtained by dividing the run off in mm by 25 mm (D) All the above
Description : The respective storm totals at three surrounding stations A, B and C are 110, 90 and 70 mm. If the normal annual precipitation amounts at stations X, A, B and C are respectively 1000, 1100, 1200 and 1250 mm, the estimated storm precipitation at X is (A) 75 mm (B) 77 mm (C) 79 mm
Description : Intermediate catch water drains are provided only, if (A) Catchment area of the watershed above road is large (B) Intensity of rainfall is heavy (C) Single catch water drain is inadequate (D) All the above
Description : The maximum average depth due to one day storm over an area of 100 km² is 100 mm. DepthArea-Duration (DAD) curves indicate the same area of 100 km² the maximum average depth for a 3 hour storm will be (A) 100 mm (B) More than 100 mm (C) Less than 100 mm (D) None of the above
Description : Pick up the correct statement from the following: (A) The specified duration of unit hydrograph, is called unit duration (B) The rain during specified duration, is called unit storm (C) The number of unit hydrographs for a given basin, is theoretically infinite (D) All the above
Description : A 6 hours storm had 4 cm of rainfall and the resulting runoff was 2 cm. If
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 : A unit hydro graph has one unit of (A) Rainfall duration (B) Rainfall excess (C) Time base of direct runoff (D) Discharge
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 rainfall at any place is described by (A) Its intensity (B) Its duration (C) Its frequency (D) All the above
Description : Instantaneous unit hydrograph is a hydrograph of (i) Unit duration (ii) Unit rainfall excess (iii) Infinitely small duration (iv) Infinitely small rainfall excess The correct answer is (A) (i) and (ii) (B) (i) and (iv) C) (ii) and (iii) (D) (iii) and (iv)
Last Answer : Answer: Option C
Description : If the peak discharge of a storm water drain (S.W. Drain) is expected to exceed 150 cumecs, the free board to be provided, is A. 100 cm B. 90 cm C. 80 cm D. 50 cm
Last Answer : ANS: A
Description : Pick up the correct statement from the following: (A) The precipitation during its travel in atmosphere dissolves certain gases (B) Rain water which percolates through the ground, is free from ... water may dissolve minerals and salts present in the earth's layers (D) All the above
Last Answer : (D) All the above
Description : Mechanism by which adrenaline can prolong the duration of local anesthesia a) Decreased permeability of the vascular endothelium b) Precipitation of lidocaine c) Changing the pH of the solution d) Local Vasoconstriction
Last Answer : d) Local Vasoconstriction
Description : Pick up the correct statement from the following: A. The maximum rate of storm runoff is called peak drainage discharge B. Rational method of estimating peak run off, may be used precisely for ... entire area starts contributing to the runoff, is called the time of concentration D. All the above
Last Answer : ANS: D
Description : Rainfall in the doldrums is of the nature of which precipitation? -General Knowledge
Last Answer : The answer is 'Orographic precipitation'
Last Answer : answer:
Description : Cherapunji receives more rainfall than Shillong because: (a) the former is nearer to the sea (b) the air of different densities and temperature tends to converge towards Cherapunjl from ... Cherapunji is located on the windward side (d) convective precipitation brings more rain at Cherapunji
Last Answer : Ans: (b)
Description : Rainfall in the doldrums is of the nature of which precipitation?
Last Answer : O r o g r a p h i c precipitation
Description : 1. Sound travels faster in which thing? 2. Who was the first General-Secretary of the Indian National Congress? 3. From when was the Zero Base Budgeting in India first experimented? 4. Rainfall in ... equator found? 20. After whose name was a women's division of the Indian National Army named?
Last Answer : Answer : 1. Iron than in air 2. Dadabhai Naoroji 3. April, 1987 4. Orographic precipitation 5. C. Vijiaraghavachari 6. Bacteria, microalgae and fungi. 7. 500 8. Because of barium 9. ... By Parliamentary Act 17. Surface tension 18. Inflation 19. North of the geographical equator 20. Rani Jhansi
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 : Izzard formula for the time of concentration in minutes for the plots having no channels, is (where Lo is the length of overland flow in metres and Kp rainfall intensity in cm/hour) (A) T = 111 b. L0 1/3/(Kp)2/3 (B) T = 222 b. L0 1/2/(Kp)1/3 (C) T = 333 b. L0/Kp (D) T = 111 b. L0 1/3/(Kp)2/5
Description : Which of the following statements is true with regard to the erratic behaviour of Indian monsoons? (a) Uniform duration but varying amounts of rain from one year to another, as well as at ... of rainfall during different years (d) Uniform duration but varying amounts of rain from place to place
Last Answer : Ans: (c)
Description : An Equinox is when: (1) Day and night are of equal length (2) Day is of the shortest duration during the year (3) Day is of the longest duration in the year (4) Day when maximum rainfall of the year occurs
Last Answer : (1) Day and night are of equal length Explanation: An equinox is an astronomical event in which the plane of Earth's equator passes through the center of the Sun, which occurs twice each year, ... . They are not exactly equal, however, due to the angular size of the sun and atmospheric refraction.
Last Answer : Day and night are of equal length
Description : Run off includes (A) Precipitation over catchment area of the stream and its attributaries (B) Surface run off (C) Ground water flow (D) All the above
Description : The run off a drainage basin is (A) Initial recharge + ground water accretion + precipitation (B) Precipitation + ground water accretion + initial recharge (C) Precipitation - ground water accretion + initial recharge (D) Precipitation - ground water accretion - initial recharge
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
Description : Pick up the incorrect statement from the following: (A) The retaining wall should be structurally capable to resist the applied earth pressure (B) The section of the retaining wall should be so ... off water from the earth retained, weep holes are provided near the top of the retaining wall
Description : Weep holes are provided in retaining and breast walls (A) To drain off the water from the filling (B) To ventilate the stone masonry (C) To add architectural beauty (D) To increase compaction of the earth retained
Description : How does smoking cigarettes impact the red blood cells? A. Decreases their ability to congeal B. Decreases their ability to carry oxygen (Answer) C. Decreases their ability to reach their typical life duration D. Decreases their ability to cleanse wounds
Last Answer : B. Decreases their ability to carry oxygen (Answer)
Description : Rain simulators are used for the determination of (A) Evaporation (B) Precipitation (C) Run off (D) Infiltration capacity
Description : Titer refers to a. The most concentrated antigen-antibody concentration showing a reaction. b. The first diluted antigen-antibody concentration showing a reaction. c. The precipitation line ... antigen-antibody reaction. d. The most dilute antigen-antibody concentration showing a reaction.
Last Answer : d. The most dilute antigen-antibody concentration showing a reaction.
Description : The climate sensitivity parameter is defined as the rate of change of A. Surface temperature with albedo of earth B. Surface temperature with CO2 concentration in atmosphere C. Precipitation with earth’s temperature D. Surface temperature with radioactive forcing.
Last Answer : D. Surface temperature with radioactive forcing.
Description : Seepage through foundation in an earthen dam is controlled by providing (A) Rock toe (B) Horizontal blanket (C) Impervious cut off (D) Chimney drain
Description : The reason for Rajasthan being deficient in rainfall is: (a) the monsoon fail to reach this area (b) it is too hot (c) there is no water available and thus the winds remain dry (d) the winds do not come across any barrier to cause necessary uplift to be cooled
Last Answer : Ans: (d)
Description : Pick up the correct statement from the following: (A) The amount of rainfall in 24 hours, is known as daily rainfall (B) The amount of rainfall in one year, is known as annual rainfall (C) The rain cycle period in India is taken as 35 years (D) All the above
Description : The rainfall cycle period in India is taken as (A) 15 years (B) 20 years (C) 25 years (D) 35 years
Description : A bus can travel 25% faster than a jeep. Both start from point P at the same time and reach point Q, 225 kms away from P, at the same time. On the way, however, the bus lost about 37.5 minutes while stopping at the ... is the speed of the jeep? a) 64 km/hr b) 72 km/hr c) 68 km/hr d) 56 km/hr
Last Answer : B Let speed of the jeep =x kmph Then, speed of the bus =(100+25)x/100 =125x/100 =5x/4 kmph Time taken by the jeep to travel from P to Q =225/x hours Time taken by the bus to travel from p to Q =225/(5x/4) + ... 225/x=900/5x+37.5/60 225/x=180/x+37.5/60 45/x =37.5/60 37.5x=45*60 X=72 km/hr
Description : In distribution pipes, drain valves are provided at (A) Lower point (B) Higher point (C) Junction points (D) Anywhere
Last Answer : (A) Lower point
Description : Where does rainfall from the south-west monsoon reach? -Do You Know?
Last Answer : Bay of Bengal branch of south-west monsoon reaches north-east of India.
Description : Where does rainfall from the south-west monsoon reach?
Last Answer : Delta region of Mahanadi
Description : Kishore is travelling on his bike and has calculated to reach point P at 4 pm if he travels at 20 kmph. He will reach there at 12 noon if he travels at 30 kmph. At what speed must he travel to reach P at 2 pm? a) 18 kmph b) 12 kmph c) 24 kmph d) 16 kmph
Last Answer : C Let the distance be x km Travelling at 20 kmph, Kishore will reach point P at 4pm. Travelling at 30 kmph, Kishore will reach point P at 12noon. Therefore, time taken when travelling at 20km - ... his travelling time must be (12-2)=10 hours Hence, required speed =240/10=24 kmph
Description : A block slides down a smooth inclined plane when released from the top while another falls freely from the same point. The value of which parameter in the two cases will be identical? a.Time ... ground c.Momentum at the ground d.Velocity while touching the ground e.Kinetic energy after one second
Last Answer : d. Velocity while touching the ground
Description : The rate constant of a chemical reaction decreases by decreasing the (A) Pressure (B) Concentration of reactants (C) Temperature (D) Duration of reaction
Last Answer : (C) Temperature
Description : The duration of spinal anaesthesia depends on each of the following except: A. Which local anaesthetic is used B. Concentration of the local anaesthetic used C. Posture of the patient D. Whether adrenaline has been added to the local anaesthetic
Last Answer : C. Posture of the patient