The head against which the motor works for lifting water, is (A) Maximum depth of water table below ground level (B) Maximum depression head (C) Velocity head (D) All the above

The head against which the motor works for lifting water, is 

(A) Maximum depth of water table below ground level 

(B) Maximum depression head 

(C) Velocity head 

(D) All the above 

by

1 Answer

Answer :

(D) All the above 

by

Related questions

The head against which the motor works for lifting water, is (A) Maximum depth of water table below ground level (B) Maximum depression head (C) Velocity head (D) All the above

Description : The head against which the motor works for lifting water, is  (A) Maximum depth of water table below ground level  (B) Maximum depression head  (C) Velocity head  (D) All the above 

Last Answer : (D) All the above 

Pick up the correct statement from the following: (A) The water level in a still well, represents the ground water table level (B) The difference between water table level and the water level in a well after pumping, is called depression head (C) The surface of water table surrounding a well during pumping, forms a cone of depression (D) All the above

Description : Pick up the correct statement from the following:  (A) The water level in a still well, represents the ground water table level  (B) The difference between water table level and the water ... water table surrounding a well during pumping, forms a cone of depression  (D) All the above 

Last Answer : (D) All the above 

The depth of the water table at a place is 45 m below the general ground level. To lift water from a deep tube well in such a locality, the type of pump to be installed is (A) Centrifugal pump (B) Reciprocating pump (C) Deep well turbine pump (D) None of these

Description : The depth of the water table at a place is 45 m below the general ground level. To lift water from a  deep tube well in such a locality, the type of pump to be installed is  (A) Centrifugal pump  (B) Reciprocating pump  (C) Deep well turbine pump  (D) None of these 

Last Answer : (C) Deep well turbine pump

Minimum horsepower of pump required for filling 50m3 water tank, 20 metres high from ground in 30 minutes by lifting water from a well 5 metres below the ground level is a.5.45 KW b.7.5 KW c.6.81 KW d.Tapered bearing e.66.8 KW

Description : Minimum horsepower of pump required for filling 50m3 water tank, 20 metres high from ground in 30 minutes by lifting water from a well 5 metres below the ground level is a.5.45 KW b.7.5 KW c.6.81 KW d.Tapered bearing e.66.8 KW

Last Answer : c. 6.81 KW

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 

Pick up the incorrect statement from the following: (A) Free surface ground water is subjected to atmospheric pressure (B) Water table surface rises and falls with seasons (C) Depth of water table is directly proportional to the rate of drawl of water (D) Level of water table remains stationary

Description : Pick up the incorrect statement from the following:  (A) Free surface ground water is subjected to atmospheric pressure  (B) Water table surface rises and falls with seasons  (C) ... directly proportional to the rate of drawl of water  (D) Level of water table remains stationary 

Last Answer : (D) Level of water table remains stationary 

Pick up the incorrect statement from the following: (A) The smaller the size of the pores, the higher the water can rise above the water table (B) Below the water table, the pore water may be static (C) The hydrostatic pressure depends on the depth below the water level (D) None of these

Description : Pick up the incorrect statement from the following: (A) The smaller the size of the pores, the higher the water can rise above the water table (B) Below the water table, the pore water may be static (C) The hydrostatic pressure depends on the depth below the water level (D) None of these

Last Answer : Answer: Option D

Field capacity represents the maximum quantity of water held: w) in the soil against the force of gravity x) in the ground water zone y) in the intermediate zone z) below the water table

Description : Field capacity represents the maximum quantity of water held: w) in the soil against the force of gravity x) in the ground water zone y) in the intermediate zone z) below the water table

Last Answer : ANSWER: W -- IN THE SOIL AGAINST THE FORCE OF GRAVITY

Consider the following statements The general depth of scour calculated by Lacey’s formula in a river represents the depth below the: 1. Maximum flood level in the river 2. Minimum flow water level in the river 3. Normal flow water level in the river 4. Existing river bed level Which of these statements is/are correct ? a) 1, 2, 3 and 4 b) 1, 2 and 3 only c) 2, 3 and 4 only d) 1 only

Description : Consider the following statements The general depth of scour calculated by Lacey's formula in a river represents the depth below the: 1. Maximum flood level in the river 2. Minimum flow water level in the river 3. Normal flow water ... 2, 3 and 4 b) 1, 2 and 3 only c) 2, 3 and 4 only d) 1 only

Last Answer : d) 1 only

When proposed depth of construction of a bridge is more than the existing depth of construction in a bridge work, the existing rail level requires a) Lowering b) Lifting* c) Slewing d) None

Description : When proposed depth of construction of a bridge is more than the existing depth of construction in a bridge work, the existing rail level requires a) Lowering b) Lifting* c) Slewing d) None

Last Answer : b) Lifting*

Auger boring (A) Is the most primitive method for making a hole in the ground (B) Is generally employed in cohesive and other self soils above water table (C) Is most economical upto a depth of 5 metres (D) All the above

Description : Auger boring (A) Is the most primitive method for making a hole in the ground (B) Is generally employed in cohesive and other self soils above water table (C) Is most economical upto a depth of 5 metres (D) All the above

Last Answer : Answer: Option D

The depth of the ground water table may be ascertained by (A) Looking through the well in the vicinity (B) Standing on the well in the vicinity (C) Measuring the depth of water in the well (D) None of the abov

Description : The depth of the ground water table may be ascertained by (A) Looking through the well in the vicinity (B) Standing on the well in the vicinity (C) Measuring the depth of water in the well (D) None of the abov

Last Answer : Answer: Option C

During percussion drilling (A) Ground water observations are hindered due to entry of the slurry in the soil below the bottom of the hole (B) Caving or mixing of strata are caused in soft soils or cohesionless soils (C) The soil to a considerable depth below the bottom of the hole gets disturbed (D) All the above

Description : During percussion drilling (A) Ground water observations are hindered due to entry of the slurry in the soil below the bottom of the hole (B) Caving or mixing of strata are caused in soft soils or ... The soil to a considerable depth below the bottom of the hole gets disturbed (D) All the above

Last Answer : Answer: Option D

The velocity through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel. (A) 0.34 times (B) 0.67 times (C) 0.81 times (D) 0.95 times

Description : The velocity through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel. (A) 0.34 times (B) 0.67 times (C) 0.81 times (D) 0.95 times

Last Answer : Answer: Option C

A circular gravity aqueduct is not generally preferred to because of (A) Its maximum hydraulic mean depth (B) Maximum area per unit of wetted perimeter (C) Minimum cost of construction (D) Its proper support on the ground

Description : A circular gravity aqueduct is not generally preferred to because of (A) Its maximum hydraulic mean depth (B) Maximum area per unit of wetted perimeter (C) Minimum cost of construction (D) Its proper support on the ground

Last Answer : (D) Its proper support on the ground

The depth of an arch is the distance between (A) Ground level and springing line (B) Crown and springing line (C) Crown and ground level (D) Intrados and extrados

Description : The depth of an arch is the distance between (A) Ground level and springing line (B) Crown and springing line (C) Crown and ground level (D) Intrados and extrados

Last Answer : Answer: Option D

Perched aquifers are generally found (A) On the surface of the ground (B) Below the surface of the ground but above water table (C) Below the water table (D) All the above

Description : Perched aquifers are generally found  (A) On the surface of the ground  (B) Below the surface of the ground but above water table  (C) Below the water table  (D) All the above 

Last Answer : (B) Below the surface of the ground but above water table 

Pick up the correct statement from the following: (A) The zone below water table, is called zone of saturation (B) The zone above water table, is called zone of aeration (C) The water which exists in the zone of saturation, is called ground water (D) All the above

Description : Pick up the correct statement from the following: (A) The zone below water table, is called zone of saturation (B) The zone above water table, is called zone of aeration (C) The water which exists in the zone of saturation, is called ground water (D) All the above

Last Answer : Answer: Option D

The maximum harbour depth below lowest low water is generally equal to (i) Loaded draft +1.2 m when bottom is rock (ii) Loaded draft +1.8 m when bottom is soft (iii) Loaded draft +1.2 m when bottom is soft (iv) Loaded draft +1.8 m when bottom is rock Of these statements (A) (i) and (ii) are correct (B) (i) and (iii) are correct (C) (ii) and (iv) are correct (D) (iii) and (iv) are correct

Description : The maximum harbour depth below lowest low water is generally equal to (i) Loaded draft +1.2 m when bottom is rock (ii) Loaded draft +1.8 m when bottom is soft (iii) Loaded draft +1.2 m when bottom is ... ) and (iii) are correct (C) (ii) and (iv) are correct (D) (iii) and (iv) are correct

Last Answer : (D) (iii) and (iv) are correct

The total and effective stresses at a depth of 5 m below the top level of water in a swimming pool are respectively (A) Zero and zero (B) 0.5 kg/cm² and zero (C) 0.5 kg/cm² and 0.5 kg/cm² (D) 1.0 kg/cm² and 0.5 kg/cm²

Description : The total and effective stresses at a depth of 5 m below the top level of water in a swimming pool are respectively (A) Zero and zero (B) 0.5 kg/cm² and zero (C) 0.5 kg/cm² and 0.5 kg/cm² (D) 1.0 kg/cm² and 0.5 kg/cm²

Last Answer : (B) 0.5 kg/cm² and zero

Depth of borings for soil investigation, is generally kept below low water level (A) 30 m (B) 35 m (C) 45 m (D) 40 m

Description : Depth of borings for soil investigation, is generally kept below low water level (A) 30 m (B) 35 m (C) 45 m (D) 40 m

Last Answer : (C) 45 m

The effective depth of a singly reinforced rectangular beam is 300mm. the section is over-reinforced and the neutral axis is 120mm below the top. If the maximum stress attained by concrete is 5N/mn2 and the modular ratio is 18, then the stress developed in the steel will (a) 130N/mm2 (b) 135N/mm2 (c) 160N/mm2 (d) 180N/mm2

Description : The effective depth of a singly reinforced rectangular beam is 300mm. the section is over-reinforced and the neutral axis is 120mm below the top. If the maximum stress attained by concrete is 5N/mn2 and the modular ratio ... in the steel will (a) 130N/mm2 (b) 135N/mm2 (c) 160N/mm2 (d) 180N/mm2

Last Answer : (b) 135N/mm2

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

The R.L. of ground water table on the sides of a valley is 1505 m whereas R.L. of the stream water is 1475 m. If 60° slope consists of pervious soil between R.L. 1485 m to 1500 m, the gravity spring may be expected at the point of reduced level (A) 1500 m (B) 1505 m (C) 1475 m (D) 1485 m

Description : The R.L. of ground water table on the sides of a valley is 1505 m whereas R.L. of the stream water  is 1475 m. If 60° slope consists of pervious soil between R.L. 1485 m to 1500 m, the gravity spring  may ... of reduced level  (A) 1500 m  (B) 1505 m  (C) 1475 m  (D) 1485 m 

Last Answer : (D) 1485 m 

Pick up the correct statement from the following: (A) If ground water enters the channel, the channel is known as effluent channel (B) If water goes out of channel to meet ground water, the channel is said to be influent stream (C) If the water table is at higher level than the water level in channel, ground water flows to the stream (D) All the above

Description : Pick up the correct statement from the following: (A) If ground water enters the channel, the channel is known as effluent channel (B) If water goes out of channel to meet ground water, the channel ... level than the water level in channel, ground water flows to the stream (D) All the above

Last Answer : Answer: Option D

In ordinary residential and public buildings, the damp proof course is generally provided at (A) Ground level (B) Plinth level (C) Water table level (D) Midway ground level and water-table level

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Last Answer : Answer: Option B

In which case power required would be more a.In lifting up a weight of 100 kg at a velocity of 3 m/sec but accelerating upwards at 0.5 m/sec b.In lowering a weight of 100 kg along an a inclined plane at an angle of 45? with c.In lifting up a weight of 100 kg at a constant speed of 3 m/sec d.In lowering the weight at a constant speed of 3 m/sec e.In lowering the weight at a velocity of 3 m/sec and acceleration of 1 m/sec2

Description : In which case power required would be more a.In lifting up a weight of 100 kg at a velocity of 3 m/sec but accelerating upwards at 0.5 m/sec b.In lowering a weight of 100 kg along an a inclined plane ... speed of 3 m/sec e.In lowering the weight at a velocity of 3 m/sec and acceleration of 1 m/sec2

Last Answer : a. In lifting up a weight of 100 kg at a velocity of 3 m/sec but accelerating upwards at 0.5 m/sec

The sound power level of a jet plane flying at a height of 1 km is 160 dB. What is the maximum sound pressure level on the ground directly below the plane assuming that the aircraft radiates sound equally in all directions? A. 59.1 dB B. 69.1 dB C. 79.1 dB D. 89.1 dB

Description : The sound power level of a jet plane flying at a height of 1 km is 160 dB. What is the maximum sound pressure level on the ground directly below the plane assuming that the aircraft radiates sound equally in all directions? A. 59.1 dB B. 69.1 dB C. 79.1 dB D. 89.1 dB

Last Answer : D. 89.1 dB

The foundations are placed below ground level, to increase (A) Strength (B) Workability (C) Stability of structure (D) All the above

Description : The foundations are placed below ground level, to increase (A) Strength (B) Workability (C) Stability of structure (D) All the above

Last Answer : Answer: Option C

A well penetrates to 30 m below the static water table. After 24 hours of pumping at 31.40 litres/minute, the water level in a test well at a distance of 80 m is lowered by 0.5 m and in a well 20 m away water is lowered by 1.0 m. The transmissibility of the aquifer, is (A) 1.185 m2 /minute(B) 1.285 m2/minute (C) 1.385 m2/minute (D) 1.485 m2/minute

Description : A well penetrates to 30 m below the static water table. After 24 hours of pumping at 31.40 litres/minute, the water level in a test well at a distance of 80 m is lowered by 0.5 m and in a well 20 m away water is ... 1.185 m2 /minute (B) 1.285 m2 /minute (C) 1.385 m2 /minute (D) 1.485 m2 /minute

Last Answer : Answer: Option C

How important is the lifting of the United States embargo against Cuba in the greater international community?

Description : How important is the lifting of the United States embargo against Cuba in the greater international community?

Last Answer : answer:From the articles I have read, most countries in the world - and in Latin America in particular - thought the US 50-year-obsession with Cuba was bizarre. So Latin America appears to welcome the ... to go this route was Venezuela, and you can see what a success they made of being socialist .

The efficiency of sedimentation tank does not depend upon (A) Depth of tank (B) Length of tank (C) Detention period (D) Velocity of water

Description : The efficiency of sedimentation tank does not depend upon  (A) Depth of tank  (B) Length of tank  (C) Detention period  (D) Velocity of water

Last Answer : (D) Velocity of water

If L, B and D length, breadth and depth of water in a rectangular sedimentation tank of total discharge Q, the settling velocity, is (A) Q/H(B) Q/D(C) Q/(D × B) (D) Q/(L × B)

Description : If L, B and D length, breadth and depth of water in a rectangular sedimentation tank of total  discharge Q, the settling velocity, is  (A) Q/H (B) Q/D (C) Q/(D × B)  (D) Q/(L × B) 

Last Answer : (D) Q/(L × B) 

Evaporation losses depend upon (A) Area of the water surface and depth of the water (B) Nature of precipitation and type of vegetation (C) Humidity and wind velocity (D) All the above

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Last Answer : Answer: Option D

If y is the depth of water at any section, then the mean velocity is (A) 0.1 y (B) 0.2 y (C) 0.3 y (D) 0.6 y

Description : If y is the depth of water at any section, then the mean velocity is (A) 0.1 y (B) 0.2 y (C) 0.3 y (D) 0.6 y

Last Answer : Answer: Option D

The reduced level of a floor is 99.995 m, the staff reading on the floor is 1.505 m. If the inverted staff reading against the roof is 1.795 m, the floor level below the slab, is (A) 3.290 m (B) 3.300 m (C) 3.275 m (D) 2.790 m

Description : The reduced level of a floor is 99.995 m, the staff reading on the floor is 1.505 m. If the inverted staff reading against the roof is 1.795 m, the floor level below the slab, is (A) 3.290 m (B) 3.300 m (C) 3.275 m (D) 2.790 m

Last Answer : (B) 3.300 m

Hydraulic mean depth (Dm) for a circular pipe of diameter 'D' flowing full is 0.25 D. For a circular channel, at Dm = 0.3 D, gives the condition for the maximum (A) Flow rate (B) Mean velocity (C) Both 'a' & 'b' (D) Neither 'a' nor 'b

Description : Hydraulic mean depth (Dm) for a circular pipe of diameter 'D' flowing full is 0.25 D. For a circular channel, at Dm = 0.3 D, gives the condition for the maximum (A) Flow rate (B) Mean velocity (C) Both 'a' & 'b' (D) Neither 'a' nor 'b

Last Answer : (B) Mean velocity

The average mean velocity of a stream having depth h, may be obtained by taking the average of the readings of a current meter at a depth of (A) 0.1 h and 0.9 h (B) 0.2 h and 0.8 h (C) 0.3 h and 0.7 h (D) 0.4 h and 0.6 h

Description : The average mean velocity of a stream having depth h, may be obtained by taking the average of the readings of a current meter at a depth of (A) 0.1 h and 0.9 h (B) 0.2 h and 0.8 h (C) 0.3 h and 0.7 h (D) 0.4 h and 0.6 h

Last Answer : Answer: Option B

The hydraulic mean depth or the hydraulic radius is the ratio of (A) Area of flow and wetted perimeter (B) Wetted perimeter and diameter of pipe (C) Velocity of flow and area of flow (D) None of these

Description : The hydraulic mean depth or the hydraulic radius is the ratio of (A) Area of flow and wetted perimeter (B) Wetted perimeter and diameter of pipe (C) Velocity of flow and area of flow (D) None of these

Last Answer : Answer: Option A

The critical depth meter is used to measure (A) Velocity of flow in an open channel (B) Depth of flow in an open channel (C) Hydraulic jump (D) Depth of channel

Description : The critical depth meter is used to measure (A) Velocity of flow in an open channel (B) Depth of flow in an open channel (C) Hydraulic jump (D) Depth of channel

Last Answer : Answer: Option C

Non uniform flow occurs when (A) The direction and magnitude of the velocity at all points are identical (B) The velocity of successive fluid particles, at any point, is the same at successive periods of time (C) Velocity, depth, pressure, etc. change from point to point in the fluid flow. (D) The fluid particles move in plane or parallel planes and the streamline patterns are identical in each plane

Description : Non uniform flow occurs when (A) The direction and magnitude of the velocity at all points are identical (B) The velocity of successive fluid particles, at any point, is the same at ... The fluid particles move in plane or parallel planes and the streamline patterns are identical in each plane

Last Answer : Answer: Option C

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

How come my car remote works if I press it while holding it against my head?

Description : How come my car remote works if I press it while holding it against my head?

Last Answer : answer:This handy Jeremy Clarkson / Top Gear video demonstrates it: http://www.youtube.com/watch?v=_jACSPipPSE As I understand it your head does act as an antenna…but I have no supporting evidence.

Hydrodynamic pressure due to earthquake acts at a height of (A) 3H/4 above the base (B) 3H/4 below the water surface (C) 4H/3 above the base (D) 4H below the water surface, where H is the depth of water.

Description : Hydrodynamic pressure due to earthquake acts at a height of (A) 3H/4 above the base (B) 3H/4 below the water surface (C) 4H/3 above the base (D) 4H below the water surface, where H is the depth of water.

Last Answer : Answer: Option C

If the atmospheric pressure on the surface of an oil tank (sp. gr. 0.8) is 0.2 kg/cm", the pressure at a depth of 50 m below the oil surface will be (A) 2 meters of water column (B) 3 meters of water column (C) 5 meters of water column (D) 6 meters of water Column

Description : If the atmospheric pressure on the surface of an oil tank (sp. gr. 0.8) is 0.2 kg/cm", the pressure at a depth of 50 m below the oil surface will be (A) 2 meters of water column (B) 3 meters of water column (C) 5 meters of water column (D) 6 meters of water Column

Last Answer : Answer: Option D

Total pressure on a lmxlm gate immersed vertically at a depth of 2 m below the free water surface will be (A) 1000 kg (B) 4000 kg (C) 2000 kg (D) 8000 kg

Description : Total pressure on a lmxlm gate immersed vertically at a depth of 2 m below the free water surface will be (A) 1000 kg (B) 4000 kg (C) 2000 kg (D) 8000 kg

Last Answer : Answer: Option A

Assertion A: Intervention of undulations in the sea bed reduces the depth of wave at the section. Reason R: No wave can have a height greater than the depth of water through which it passes Select your answer based on the coding system given below: (A) Both A and R is true and R is correct explanation of A (B) Both A and R is true but R is not the correct explanation of A (C) A is true but R is false (D) A is false but R is true

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Last Answer : (A) Both A and R is true and R is correct explanation of A

Most commonly used pump for lifting water in water supply mains, is (A) Axial flow pump (B) Reciprocating pump (C) Rotary type pump (D) Centrifugal pumps

Description : Most commonly used pump for lifting water in water supply mains, is  (A) Axial flow pump  (B) Reciprocating pump  (C) Rotary type pump  (D) Centrifugal pumps 

Last Answer : (A) Axial flow pump 

Question No. 216 If the specific capacity of a well is 0.3183 × 10-3 per sec, the discharge from a well of 4 m diameter under a depression head of 4 m, is (A) 8 litres/sec (B) 10 litres/sec (C) 12 litres/sec (D) 16 litres/sec

Description : Question No. 216 If the specific capacity of a well is 0.3183 × 10-3 per sec, the discharge from a well of 4 m diameter under a depression head of 4 m, is (A) 8 litres/sec (B) 10 litres/sec (C) 12 litres/sec (D) 16 litres/sec

Last Answer : (D) 16 litres/sec

The expected discharge to be obtained from an open well sunk in coarse sand is 0.0059 cumec. If the working depression head of the well is 3 m, the minimum diameter of the well, is (A) 2 m (B) 2.25 m (C) 2.50 m (D) 3.00 m

Description : The expected discharge to be obtained from an open well sunk in coarse sand is 0.0059 cumec. If  the working depression head of the well is 3 m, the minimum diameter of the well, is  (A) 2 m  (B) 2.25 m  (C) 2.50 m  (D) 3.00 m 

Last Answer : (D) 3.00 m