The Dupuit formula is based on (A) One observation well (B) Two observation wells (C) Three observation wells (D) No observation well

The Dupuit formula is based on
(A) One observation well
(B) Two observation wells
(C) Three observation wells
(D) No observation well
by

1 Answer

Answer :

Answer: Option D
by

Related questions

Two observation wells penetrating into a confined aquifer are located 1500 m apart in the direction of flow. Heads of 50 m and 25 m are indicated at these two observation wells. If the coefficient of permeability for the aquifer is 30 m/day and its porosity is 0.25, the time of travel of an inert tracer from one well to another is (a) 75 days (b) 750 days (c) 1200 days (d) 3000 days

Description : Two observation wells penetrating into a confined aquifer are located 1500 m apart in the direction of flow. Heads of 50 m and 25 m are indicated at these two observation wells. If the coefficient of permeability for the ... well to another is (a) 75 days (b) 750 days (c) 1200 days (d) 3000 days

Last Answer : (b) 750 days

In an artesian aquifer, the draw downs in two observation wells at distances 100 m, and 200 m were found same after one hour and x hours respectively. The value of x, is (A) 2 hours (B) 4 hours (C) 9 hours (D) 16 hours

Description : In an artesian aquifer, the draw downs in two observation wells at distances 100 m, and 200 m  were found same after one hour and x hours respectively. The value of x, is  (A) 2 hours  (B) 4 hours  (C) 9 hours  (D) 16 hours 

Last Answer : (B) 4 hours

Abyssinian tube well is a special type of (A) Slotted type wells (B) Cavity type wells (C) Strainer type well (D) None of these

Description : Abyssinian tube well is a special type of (A) Slotted type wells (B) Cavity type wells (C) Strainer type well (D) None of these

Last Answer : (C) Strainer type well

Water to the consumers may be supplied from (A) Infiltration galleries connected to sump well (B) Infiltration well dug out on the banks of rivers (C) Ranney wells sunk to the water level (D) All the above

Description : Water to the consumers may be supplied from  (A) Infiltration galleries connected to sump well  (B) Infiltration well dug out on the banks of rivers  (C) Ranney wells sunk to the water level  (D) All the above 

Last Answer : (D) All the above 

Shrouding' is essentially provided in (A) Strainer type wells (B) Cavity type wells (C) Slotted type well (D) All the above

Description : Shrouding' is essentially provided in  (A) Strainer type wells  (B) Cavity type wells  (C) Slotted type well  (D) All the above 

Last Answer : (C) Slotted type well 

While determining the yield of open wells by the pumping test (A) Velocity of recharging water, increases with depression head (B) Depression head resulting at critical velocity, is called critical depression head (C) Working head is generally limited to (D) Maximum safe yield of an open well, is expected at critical depression head

Description : While determining the yield of open wells by the pumping test  (A) Velocity of recharging water, increases with depression head  (B) Depression head resulting at critical velocity, is called critical ... (D) Maximum safe yield of an open well, is expected at critical depression head 

Last Answer : (D) Maximum safe yield of an open well, is expected at critical depression head 

When a constant discharge 2.91 litres/sec. was obtained in a pumping test, the draw downs in the test wells at 3 m and 6.184 m were 2.6 m and 0.3 m respectively. If over-all depth of the pumping well was 16 m, the permeability of the soil, is (A) 0.0005 cm/sec (B) 0.001 cm/sec (C) 0.002 cm/sec (D) 0.01 cm/sec

Description : When a constant discharge 2.91 litres/sec. was obtained in a pumping test, the draw downs in the test wells at 3 m and 6.184 m were 2.6 m and 0.3 m respectively. If over-all depth of the pumping well was 16 m, the ... (A) 0.0005 cm/sec (B) 0.001 cm/sec (C) 0.002 cm/sec (D) 0.01 cm/sec

Last Answer : Answer: Option B

S1 and S2 are the draw downs in an observation well at times t1 and t2 after pumping. For discharge Q and coefficient of transmissibility T, the relationship, is (A) S2 - S1 = (2.3Q/ ) log10 (t2/t1) (B) S2 - S1 = (2.3Q/4 ) log10 (t2/t1) (C) S2 - S1 = (2.3Q/4 ) loge (t2/t1) (D) S2 - S1 = (2.3Q/4 ) loge (t1/t2

Description : S1 and S2 are the draw downs in an observation well at times t1 and t2 after pumping. For  discharge Q and coefficient of transmissibility T, the relationship, is  (A) S2 - S1 = (2.3Q/ ) log10 (t2/t1)  (B) S2 - S1 ... - S1 = (2.3Q/4 ) loge (t2/t1)  (D) S2 - S1 = (2.3Q/4 ) loge (t1/t2

Last Answer : (B) S2 - S1 = (2.3Q/4 ) log10 (t2/t1) 

Derivation of Thiem's formula Q = 2 (s1 - s2)/2.3 log10 (r2/r1) is based on the assumption (A) The aquifer is homogeneous, isotropic and of infinite depth and area (B) The well is sunk through the full depth of the aquifer (C) The flow lines are radial and horizontal, and the flow is laminar (D) All the above

Description : Derivation of Thiem's formula Q = 2 (s1 - s2)/2.3 log10 (r2/r1) is based on the assumption  (A) The aquifer is homogeneous, isotropic and of infinite depth and area  (B) The well is sunk ... (C) The flow lines are radial and horizontal, and the flow is laminar  (D) All the above 

Last Answer : (D) All the above 

Ground water from artesian wells (A) Contains no suspended materials (B) Contains dissolved salts (C) May be saltish and hard (D) All the above

Description : Ground water from artesian wells (A) Contains no suspended materials (B) Contains dissolved salts (C) May be saltish and hard (D) All the above

Last Answer : (D) All the above

Pick up the correct statement from the following: (A) A confined bed of impervious material laid over an aquifer, is known as an aquiclude (B) The top most water bearing strata having no aquifer, is known as non-artesian aquifer (C) The ordinary gravity wells which supply water from the top most water bearing strata, are called water table wells (D) All the above

Description : Pick up the correct statement from the following: (A) A confined bed of impervious material laid over an aquifer, is known as an aquiclude (B) The top most water bearing strata having no aquifer, is ... water from the top most water bearing strata, are called water table wells (D) All the above

Last Answer : Answer: Option D

based on the chart, what percentage of energy is found using oil wells sources of energy?

Description : based on the chart, what percentage of energy is found using oil wells sources of energy?

Last Answer : 37% petroleum

Name the US based bank which has become the first bank to issue the first ever credit card to be used in Cuba? A) American Express B) SunTrust Bank C) Citigroup D) Stonegate Bank E) Wells Fargo

Description : Name the US based bank which has become the first bank to issue the first ever credit card to be used in Cuba? A) American Express B) SunTrust Bank C) Citigroup D) Stonegate Bank E) Wells Fargo

Last Answer : D) Stonegate Bank Explanation: Pompano Beach-based Stonegate Bank issued the first of its MasterCard credit cards for use in Cuba The South Florida bank was the first – and so far the only bank to launch a debit card for use by U.S. travelers in Cuba.

The customs control based on the Indians customs act 1962 is for a) The imposition of export or import duties b) For ensuring the observance of the provisions of import and export control act c) For ensuring the observation of foreign exchange regulation act d) All of the above

Description : The customs control based on the Indians customs act 1962 is for a) The imposition of export or import duties b) For ensuring the observance of the provisions of import and export control act c) For ensuring the observation of foreign exchange regulation act d) All of the above

Last Answer : d) All of the above

Which of the following terms describes the study o animal behavior based on comparisons, the observation of patterns, and the consideration of environmental adaptations? Is it: a) ethology (pron: eh-thol-eh-gee) b) evisceration (pron: eh-vis-eh-ray-shun) c) promotorism d) sociology

Description : Which of the following terms describes the study o animal behavior based on comparisons, the observation of patterns, and the consideration of environmental adaptations? Is it: a) ethology (pron: eh-thol-eh-gee) b) evisceration (pron: eh-vis-eh-ray-shun) c) promotorism d) sociology

Last Answer : ANSWER: A -- ETHOLOGY

Given below are some characteristics of reasoning. Select the code that states a characteristic which is not of deductive reasoning: (A) The conclusion must be based on observation and experiment (B) The conclusion should be supported by the premise/premises (C) The conclusion must follow from the premise/premises necessarily (D) The argument may be valid or invalid

Description : Given below are some characteristics of reasoning. Select the code that states a characteristic which is not of deductive reasoning: (A) The conclusion must be based on observation and experiment ( ... must follow from the premise/premises necessarily (D) The argument may be valid or invalid

Last Answer : (A) The conclusion must be based on observation and experiment

Given below are some characteristics of logical argument. Select the code which expresses a characteristic which is not of inductive in character. (A) The conclusion is claimed to follow from its premises. (B) The conclusion is based on causal relation. (C) The conclusion conclusively follows from its premises. (D) The conclusion is based on observation and experiment

Description : Given below are some characteristics of logical argument. Select the code which expresses a characteristic which is not of inductive in character. (A) The conclusion is claimed to follow from ... conclusively follows from its premises. (D) The conclusion is based on observation and experiment

Last Answer : (C) The conclusion conclusively follows from its premises. 

For the same draw down in two observations wells at distances r1 and r2, the times after start of pumping are t1 and t2 hours respectively. The relation which holds good is (A) t2 = r2/r1 × t1 (B) t2 = (r2/r1)² × t1 (C) t2 = (r2/r1)3 × t1 (D) t2 = (r2/r1) × t1 2

Description : For the same draw down in two observations wells at distances r1 and r2, the times after start of  pumping are t1 and t2 hours respectively. The relation which holds good is  (A) t2 = r2/r1 × t1 (B) t2 = (r2/r1)² × t1 (C) t2 = (r2/r1)3  × t1 (D) t2 = (r2/r1) × t1 2

Last Answer : (B) t2 = (r2/r1)² × t1

The total discharge from two wells situated near to each other is(A) Sum of the discharges from individual wells (B) Less than the sum of the discharges from individual wells (C) Greater than the sum of the discharges from individual wells (D) Equal to larger of the two discharges from individual wells

Description : The total discharge from two wells situated near to each other is (A) Sum of the discharges from individual wells (B) Less than the sum of the discharges from individual wells (C) Greater ... of the discharges from individual wells (D) Equal to larger of the two discharges from individual wells

Last Answer : (B) Less than the sum of the discharges from individual wells

The coefficients of permeability of soils of an unconfined aquifer and another confined aquifer were determined by pumping water from the wells and observing the effect of water table in two test wells at equal distances was found to be equal. The total height of confined aquifer H is given by (A) H = h2 - h1 (B) H = h1 - h2 (C) H = h2 + h1 (D) ½ (h1 + h2)

Description : The coefficients of permeability of soils of an unconfined aquifer and another confined aquifer were determined by pumping water from the wells and observing the effect of water table in two test wells at equal distances was found to be equal. ... (B) H = h1 - h2 (C) H = h2 + h1 (D) ½ (h1 + h2)

Last Answer : Answer: Option D

For least effect on the water table, the tube wells must be dug one in every (A) 0.5 sq km (B) 0.75 sq km (C) 1.0 sq km (D) 1.5 sq km

Description : For least effect on the water table, the tube wells must be dug one in every (A) 0.5 sq km (B) 0.75 sq km (C) 1.0 sq km (D) 1.5 sq km

Last Answer : (D) 1.5 sq km

Pick up the correct statement from the following: (A) Air lift pumps are generally used for pumping water from deep wells (B) Jet pumps are generally used for pumping water from small wells (C) The hydraulic ram works on the principle of water hammer (D) All the above

Description : Pick up the correct statement from the following: (A) Air lift pumps are generally used for pumping water from deep wells (B) Jet pumps are generally used for pumping water from small wells (C) The hydraulic ram works on the principle of water hammer (D) All the above

Last Answer : (D) All the above

Pick up the incorrect statement from the following: (A) The flow in strainer type wells is radial (B) The flow in cavity type wells in spherical(C) In strainer type wells, area of flow depends upon the length of the strainer pipe (D) In cavity type wells, area of flow depends upon the size of the cavity

Description : Pick up the incorrect statement from the following:  (A) The flow in strainer type wells is radial  (B) The flow in cavity type wells in spherical  (C) In strainer type wells, area of flow ... pipe  (D) In cavity type wells, area of flow depends upon the size of the cavity 

Last Answer : (C) In strainer type wells, area of flow depends upon the length of the strainer pipe 

Pick up the incorrect statement from the following. The underground sources of water, is from (A) Wells (B) Springs (C) Infiltration wells (D) Storage reservoirs

Description : Pick up the incorrect statement from the following. The underground sources of water, is from  (A) Wells  (B) Springs  (C) Infiltration wells  (D) Storage reservoirs

Last Answer : (D) Storage reservoirs

An earth formation which, although porous and capable of absorbing water does not provide an appreciable supply to wells, is known as (A) Aquifer (B) Aquiclude (C) Aquifuge (D) None of these

Description : An earth formation which, although porous and capable of absorbing water does not provide an  appreciable supply to wells, is known as  (A) Aquifer  (B) Aquiclude  (C) Aquifuge  (D) None of these 

Last Answer : (B) Aquiclude 

Specific capacity or yield of wells, is generally expressed, as (A) m 3 per sec (B) m 3 /hour (C) m 3 /hour/m2 (D) m 3 /hour/m2 /m

Description : Specific capacity or yield of wells, is generally expressed, as  (A) m 3  per sec  (B) m 3 /hour  (C) m 3 /hour/m2 (D) m 3 /hour/m2 /m 

Last Answer : (D) m 3 /hour/m2 /m 

Shrouding is provided in (A) Cavity type tube wells (B) Slotted type tube wells (C) Strainer type tube wells (D) Perforated type tube wells

Description : Shrouding is provided in (A) Cavity type tube wells (B) Slotted type tube wells (C) Strainer type tube wells (D) Perforated type tube wells

Last Answer : Answer: Option B

Seepage through embankments in an earthen dam is controlled by (A) Drainage filters (B) Relief wells (C) Drain trenches (D) Provision of downstream berms

Description : Seepage through embankments in an earthen dam is controlled by (A) Drainage filters (B) Relief wells (C) Drain trenches (D) Provision of downstream berms

Last Answer : Answer: Option C

The surface joining the static levels in several non-pumping wells penetrating a continuous confined aquifer represents (a) Water-table surface (b) Capillary fringe (c) Piezometric surface of the aquifer (d) Physical top surface of the aquifer

Description : The surface joining the static levels in several non-pumping wells penetrating a continuous confined aquifer represents (a) Water-table surface (b) Capillary fringe (c) Piezometric surface of the aquifer (d) Physical top surface of the aquifer

Last Answer : (c) Piezometric surface of the aquifer

Pick up the correct statement from the following: (A) The theodolite in which telescope can be rotated in vertical plane is called a transmit (B) When the vertical circle is to the left of the telescope during observation, it is called to be in left face (C) When the vertical circle is to the right of the telescope during observation, it is called to be in right face (D) All the above

Description : Pick up the correct statement from the following:  (A) The theodolite in which telescope can be rotated in vertical plane is called a transmit  (B) When the vertical circle is to the left of ... the telescope during observation, it is called to be  in right face  (D) All the above 

Last Answer : (D) All the above 

Geodetic surveying is undertaken (A) For production of accurate maps of wide areas (B) For developing the science of geodesy (C) Making use of most accurate instruments and methods of observation (D) All the above

Description : Geodetic surveying is undertaken  (A) For production of accurate maps of wide areas  (B) For developing the science of geodesy  (C) Making use of most accurate instruments and methods of observation  (D) All the above 

Last Answer : (D) All the above 

Pick up the correct statement from the following: (A) An observation or the resulting reading with the level on a levelling staff is called sight (B) A back sight is the first sight taken after setting up the instrument in any position (C) The first sight on each change point is a fore sight (D) All the above

Description : Pick up the correct statement from the following: (A) An observation or the resulting reading with the level on a levelling staff is called sight (B) A back sight is the first sight taken after setting up ... position (C) The first sight on each change point is a fore sight (D) All the above

Last Answer : (D) All the above

Pick up the correct statement from the following(A) The first man-made satellite, Sputnik-l' was launched on 4th October, 1957 (B) The United State's Explorer 6 transmitted the first picture of the earth in August 1959 (C) Television Infrared Observation Satellite (TIROS) designed for meteorological observations, started systematic earth observations from space from 1, April, 1960 (D) All of these

Description : Pick up the correct statement from the following (A) The first man-made satellite, Sputnik-l' was launched on 4th October, 1957 (B) The United State's Explorer 6 transmitted the first picture ... observations, started systematic earth observations from space from 1, April, 1960 (D) All of these

Last Answer : Answer: Option D

Pick up the correct statement from the following: (A) In remote sensing technique, the observation place, is called a platform (B) Platforms may be either stationary or mobile (C) Spatial resolution of the imaging system becomes poorer with increase of platform height (D) All of these

Description : Pick up the correct statement from the following: (A) In remote sensing technique, the observation place, is called a platform (B) Platforms may be either stationary or mobile (C) Spatial resolution of the imaging system becomes poorer with increase of platform height (D) All of these

Last Answer : Answer: Option D

When compared with the co-latitude of the place of observation, the declination of a circumpolar star is always, (a) Lesser (b) Greater (c) Equal (d) Either lesser or equal

Description : When compared with the co-latitude of the place of observation, the declination of a circumpolar star is always, (a) Lesser (b) Greater (c) Equal (d) Either lesser or equal

Last Answer : (b) Greater

The discharge Q = 2 /2.3 log10 (R/rw) for the confined tube well is obtained from (A) Thiem's formula (B) Darcy's formula (C) Tolman's formula (D) Dupuits formula

Description : The discharge Q = 2 /2.3 log10 (R/rw) for the confined tube well is obtained from  (A) Thiem's formula  (B) Darcy's formula  (C) Tolman's formula  (D) Dupuits formula 

Last Answer : (D) Dupuits formula 

Rankine-Golden formula accounts for direct as well as buckling stress and is applicable to (A) Very long columns (B) Long columns (C) Short columns (D) Intermediate columns

Description : Rankine-Golden formula accounts for direct as well as buckling stress and is applicable to (A) Very long columns (B) Long columns (C) Short columns (D) Intermediate columns

Last Answer : (D) Intermediate columns

the derivation of Thiem's formula, Q = (S1 - S2)/[2.3 log10( / )] the following assumption is not applicable (A) The aquifer is homogeneous and isotropic (B) Flow lines are radial and horizontal (C) The slope of the water surface is too small (D) The well has been sunk up to the surface of the unconfined aquifer

Description : the derivation of Thiem's formula, Q = (S1 - S2)/[2.3 log10( / )] the following assumption is not applicable (A) The aquifer is homogeneous and isotropic (B) Flow lines are radial and ... the water surface is too small (D) The well has been sunk up to the surface of the unconfined aquifer

Last Answer : Answer: Option D

Burge formula Q = 19.6 (A/L2/3) cumecs is based upon (A) Rainfall and drainage area (B) Run off and drainage area (C) Drainage area and its shape (D) Drainage area

Description : Burge formula Q = 19.6 (A/L2/3) cumecs is based upon (A) Rainfall and drainage area (B) Run off and drainage area (C) Drainage area and its shape (D) Drainage area

Last Answer : Answer: Option C

Pettis formula Q = C (P.B)5/4 cumecs, is based upon (A) Rainfall and drainage area (B) Run off and drainage area (C) Drainage area and its shape (D) Drainage area

Description : Pettis formula Q = C (P.B)5/4 cumecs, is based upon (A) Rainfall and drainage area (B) Run off and drainage area (C) Drainage area and its shape (D) Drainage area

Last Answer : Answer: Option A

Boston society of Civil Engineer's formula Q = 0.0056 × (D/t) in cumecs/square km is based upon (A) Rainfall and drainage area(B) Total run off and drainage area (C) Drainage area and its shape (D) Drainage area

Description : Boston society of Civil Engineer's formula Q = 0.0056 × (D/t) in cumecs/square km is based upon (A) Rainfall and drainage area (B) Total run off and drainage area (C) Drainage area and its shape (D) Drainage area

Last Answer : Answer: Option B

Design of flexible pavements is based on (A) Mathematical analysis (B) Empirical formulae (C) A compromise of pure theory and pure empirical formula (D) None of these

Description : Design of flexible pavements is based on (A) Mathematical analysis (B) Empirical formulae (C) A compromise of pure theory and pure empirical formula (D) None of these

Last Answer : Answer: Option C

The assumption on which the trapezoidal formula for volumes is based, is (A) The end sections are parallel planes (B) The mid-area of a pyramid is half the average area of the ends (C) The volume of the Prismoidal is over-estimated and hence a Prismoidal correction is applied (D) All the above

Description : The assumption on which the trapezoidal formula for volumes is based, is (A) The end sections are parallel planes (B) The mid-area of a pyramid is half the average area of the ends (C) The volume of the Prismoidal is over-estimated and hence a Prismoidal correction is applied (D) All the above

Last Answer : (D) All the above

The mean of the data set comprising of 16 observation is 16. If one of the observation valued 16 is deleted and three new observations 3, 4, & 5 are a

Description : The mean of the data set comprising of 16 observation is 16. If one of the observation valued 16 is deleted and three new observations 3, 4, & 5 are a

Last Answer : The mean of the data set comprising of 16 observation is 16. If one of the observation valued 16 is deleted and three ... B. 16.8 C. `14.0` D. `16.0`

Which one of the following Articles of the Constitution of India lays down that no citizen can be denied the use of wells, tanks and bathing Ghats maintained out of State funds? (1) (1) Article 14 (2) (2) Article 15 (3) (3) Article 16 (4) (4) Article 17

Description : Which one of the following Articles of the Constitution of India lays down that no citizen can be denied the use of wells, tanks and bathing Ghats maintained out of State funds? (1) (1) Article 14 (2) (2) Article 15 (3) (3) Article 16 (4) (4) Article 17

Last Answer : (2) Article 15 Explanation: Article 15 states Prohibition of discrimination on grounds of religion, race, caste, sex or place of birth. No citizen shall, on grounds only of religion, race, caste, ... resort maintained wholly or partly out of State funds or dedicated to the use of the general public.

Give reason for the following observation (L-III) (a)- The tendency for catenation decreases down the group in group 14 (b)- The decreasing stability of+3 oxidation state with increasing atomic no. in group 13. (c)- Molten aluminum bromide is a poor conductor of electricity.

Description : Give reason for the following observation (L-III) (a)- The tendency for catenation decreases down the group in group 14 (b)- The decreasing stability of+3 oxidation state with increasing atomic no. in group 13. (c)- Molten aluminum bromide is a poor conductor of electricity.

Last Answer : Ans. -(a) it is due to decrease in bond dissociation energy which is due to increase in atomic size C-C > Si-Si >Ge-Ge>Sn-Sn>Pb-Pb. (b)- It is due to inert pair effect. (c)- Molten AlBr3 is poor conductor of electricity because it is covalent compound.

Which of the following is a correct observation when water is added to substance ̳X‘ (a) vigorous bubbling and a hissing sound (b) slow bubbling with no sound (c) vigorous bubbling with evolution of heat and a hissing sound (d) only hissing sound

Description : Which of the following is a correct observation when water is added to substance ̳X‘ (a) vigorous bubbling and a hissing sound (b) slow bubbling with no sound (c) vigorous bubbling with evolution of heat and a hissing sound (d) only hissing sound

Last Answer : (c) vigorous bubbling with evolution of heat and a hissing sound

yr-old baby presented with his parents with pallor his HB is 9, he has microcytic hypochromic anemia, no other complain .. what u'll do for him ?? iron therapy and close observation daily multivitamins with iron _______________________________

Description : yr-old baby presented with his parents with pallor his HB is 9, he has microcytic hypochromic anemia, no other complain .. what u'll do for him ?? iron therapy and close observation daily multivitamins with iron _______________________________

Last Answer : iron therapy and close observation daily multivitamins with iron ___________________________________

A small cluster of stars appear, after many decades of observation, to be converging toward a common point in the sky. Does the light from these stars show a: w) red Doppler shift x) blue Doppler shift y) no Doppler shift

Description : A small cluster of stars appear, after many decades of observation, to be converging toward a common point in the sky. Does the light from these stars show a: w) red Doppler shift x) blue Doppler shift y) no Doppler shift

Last Answer : ANSWER: W -- RED DOPPLER SHIFT 

Consider the following statements: Mitra’s hyperbolic transition design is based on the principle that : 1. Flow depth in the canal, as well as the discharge, is constant 2. width of the canal varies along with the discharge 3. Rate of change of velocity per unit length of transition is constant throughout the length of the transition. Which of these statements are correct ? a) 1, 2 and 3 b) 1 and 2 only c) 2 and 3 only d) 1 and 3 only

Description : Consider the following statements: Mitra's hyperbolic transition design is based on the principle that : 1. Flow depth in the canal, as well as the discharge, is constant 2. width of the canal varies along with the discharge 3. Rate ... a) 1, 2 and 3 b) 1 and 2 only c) 2 and 3 only d) 1 and 3 only

Last Answer : d) 1 and 3 only