For concreting tunnel linings, transportation of concrete is done by (A) Pans (B) Wheel borrows (C) Containers (D) Pumps

For concreting tunnel linings, transportation of concrete is done by
(A) Pans
(B) Wheel borrows
(C) Containers
(D) Pumps
by

1 Answer

Answer :

(D) Pumps
by

Related questions

(i) Suggest the relevant method of water-proofing used for following construction. 1) Basement of buildings. 2) Swimming pool. 3) Water tank. (ii) Suggest the relevant method of transportation of concrete used for construction in following situation. 1) Concreting in hilly areas. 2) Concreting of high-rise building. 3) Concreting under water.

Description : (i) Suggest the relevant method of water-proofing used for following construction. 1) Basement of buildings. 2) Swimming pool. 3) Water tank. (ii) Suggest the relevant method of transportation of ... 1) Concreting in hilly areas. 2) Concreting of high-rise building. 3) Concreting under water.

Last Answer : Method of water-proofing for: 1) Basement of buildings: Waterproofing by using waterproof sealants. 2) Swimming pool: Waterproofing by spraying or grouting in cracks. 3) Water tank: Waterproofing by ... , concrete pump, slip form technique. 3) Concreting under water: Tremie pipe, grout pipe.

Transport of concrete by pumps, is done for a distance of (A) 100 m (B) 200 m (C) 300 m (D) 400 m

Description : Transport of concrete by pumps, is done for a distance of (A) 100 m (B) 200 m (C) 300 m (D) 400 m

Last Answer : (D) 400

Consider the following activities in a building construction: 1. Concreting of roof slabs 2. Brick-jelly lime concrete terracing 3. Erection of form work for slab 4. Construction of parapet wall in terrace The correct sequence of these activities is (A) 1, 3, 2, 4 (B) 3, 1, 4, 2 (C) 3, 1, 2, 4 (D) 1, 3, 4, 2

Description : Consider the following activities in a building construction: 1. Concreting of roof slabs 2. Brick-jelly lime concrete terracing 3. Erection of form work for slab 4. Construction of parapet wall in terrace The correct sequence of these ... (B) 3, 1, 4, 2 (C) 3, 1, 2, 4 (D) 1, 3, 4, 2

Last Answer : (C) 3, 1, 2, 4

For concreting of heavily reinforced sections without vibration, the workability of concrete expressed as compacting factor should be (A) 0.75 - 0.80 (B) 0.80 - 0.85 (C) 0.85 - 0.92 (D) Above 0.92

Description : For concreting of heavily reinforced sections without vibration, the workability of concrete expressed as compacting factor should be (A) 0.75 - 0.80 (B) 0.80 - 0.85 (C) 0.85 - 0.92 (D) Above 0.92

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Name the type of cement from the following for canal linings: (A) Sulphate resisting cement (B) Rapid hardening cement (C) Quick setting cement (D) Pozzolana cement

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Temporary staging for casting PSC Box Girder for a ROB over the Railway span shall be removed a) after hardening of concrete b) before hardening of concrete c) during concreting d) after stressing the cables

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Description : Which of the following produces maximum pressure difference for transportation of gases? (A) Vacuum pumps (B) Blowers (C) Fans (D) Compressors

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Consider the following operations: 1. Drilling 2. Blasting 3. Mucking 4. Placing steel 5. Placing concrete The correct sequence of these operations in tunnel construction is (A) 1, 2, 4, 3, 5 (B) 1, 3, 2, 4, 5 (C) 1, 2, 3, 4, 5 (D) 1, 3, 4, 2,

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Last Answer : (C) 1, 2, 3, 4, 5

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Last Answer : D. All of the above (Answer)

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If government officials are calculating the amount of money the federal government borrows for one fiscal year, they are _____.?

Description : If government officials are calculating the amount of money the federal government borrows for one fiscal year, they are _____.?

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Bank rate is the rate of interest: (1) At which public borrows money from Commercial Banks (2) At which public borrows money from R.B.I. (3) At which Commercial Banks borrow money from R.B.I. (4) At which Commercial Banks borrow money from the public

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Bank rate is the rate of interest - (1) at which public borrows money from Commercial Bank (2) at which public borrows money from RBI (3) at which Commercial Banks borrow money from RBI (4) at which Commercial Banks borrow money from public

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Last Answer : (3) at which Commercial Banks borrow money from RBI Explanation: Bank Rate is the interest rate at which a nation’s central bank lends money to domestic banks. Managing the bank rate is a preferred method by which central banks can regulate the level of economic activity.

A bailment in which only the person who borrows and article gets the benefits is known as: a) Bailment for the sole benefits of the bailee b) Bailment for the sole benefits of the bailor c) Mutual benefit bailment d) Constructive bailment

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What are the major problems in using pumping for concreting works?

Description : What are the major problems in using pumping for concreting works?

Last Answer : In pumping operation, the force exerted by pumps must overcome the friction between concrete and the pumping pipes, the weight of concrete and the pressure head when placing concrete above the ... other hand, a proper selection of aggregate grading helps to improve the pumpability of concrete.

If on­site slump test fails, should engineers allow the contractor to continue the concreting works?

Description : If on­site slump test fails, should engineers allow the contractor to continue the concreting works?

Last Answer : This is a very classical question raised by many graduate engineers. In fact, there are two schools of thought regarding this issue. The first school of thought is rather straightforward: the contractor ... t the Engineer exercise his power to stop the contractor and save these extra time and cost?

In case of laying gullies, siphons, intercepting traps, the cost includes (A) Setting and laying (B) Bed concreting (C) Connection to drains (D) All of these

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Last Answer : (b) R.H.C

In cement concrete pavements, tensile stress is due to: (A) Bending or deflection under wheel loads (B) Difference in temperature of the top and bottom of pavement (C) Contraction of slab during falling temperature (D) All the above

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Last Answer : Answer: Option D

Interior thickness of concrete road slab for design wheel load 6300 kg and permissible flexural stress 21 kg/cm2 , is (A) 17.0 cm (B) 25.5 cm (C) 34.0 cm (D) 42.5 cm

Description : Interior thickness of concrete road slab for design wheel load 6300 kg and permissible flexural stress 21 kg/cm2 , is (A) 17.0 cm (B) 25.5 cm (C) 34.0 cm (D) 42.5 cm

Last Answer : Answer: Option B

In a concrete pavement, during summer, at and soon after mid-day, the combined stress at the interior of the slab is equal to : (a) Wheel load stress + Temperature warping stress + Sub grade resistance stress (b) Wheel load stress + Temperature warping stress – Sub grade resistant stress (c) Wheel load stress – Temperature warping stress + Sub grade resistant stress (d) Wheel load stress – Temperature warping stress − Sub grade resistant stress

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Last Answer : (b) Wheel load stress + Temperature warping stress – Sub grade resistant stress

Radioactive solid nuclear wastes are disposed off by (A) High temperature incineration (B) Pathological incineration (C) Pyrolysis(D) Underground burial in concrete containers

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Last Answer : (D) Underground burial in concrete containers

It has been recommended that storage of nuclear waste after sufficient pretreatement should be done in suitably shielded containers buried within rock

Description : It has been recommended that storage of nuclear waste after sufficient pretreatement should be done in suitably shielded containers buried within rock

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In a forward feed multiple effect evaporator unit (A) Viscosity of liquid is highest in first effect (B) Transfer from effect to effect is done by pumps (C) No pump is required to withdraw the product from the last effect (D) None of these

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Last Answer : (D) None of these

cement screed when concreting columns

Description : Hello, I was buying a concrete mix for concreting the fence posts and at home I noticed that the bags are written Cement screed BE 04/25. Can this be used or not? Thank you for the quick answers.

Last Answer : It can be used, but it won't have the right effect. At least add a little sharp, river sand to the pot. This mixture is too fine and even after curing it will have significantly less strength than conventional berton.

The grit and silt of the grit chambers, may not be used for A. Raising low lying areas by dumping B. Concreting C. Both A. and B. D. Neither A. nor B.

Description : The grit and silt of the grit chambers, may not be used for A. Raising low lying areas by dumping B. Concreting C. Both A. and B. D. Neither A. nor B.

Last Answer : ANS: B

Why Should Pumping Be Not Used In Case Of Concreting Works?

Description : Why Should Pumping Be Not Used In Case Of Concreting Works?

Last Answer : Answer : During the pumping operation the pump exerted pressure must overcome any friction between the pumping pipes and the concrete, also the weight of the concrete and the pressure headwhen the ... Also if a proper selection of the aggregate grading can vastly improve the concrete pump ability.

What Are The Steps Involved In The Concreting Process, Explain?

Description : What Are The Steps Involved In The Concreting Process, Explain?

Last Answer : Answer : 1. Batching: The process of measurement of the different materials for the making of concrete is known as batching. batching is usually done in two ways: volume batching and weight batching ... performed. Compaction is generally performed in two ways: by hand or by the use of vibrators.

Bentonite is used in pile driving -- a) to facilitate pile driving b) to enable proper pile concreting c) to stabilize the bore hole walls* d) None of the above

Description : Bentonite is used in pile driving -- a) to facilitate pile driving b) to enable proper pile concreting c) to stabilize the bore hole walls* d) None of the above

Last Answer : c) to stabilize the bore hole walls*

Suggest the type of cement used for the following : (i) For modular construction where form work needs to be removed early for re-use. . (ii) Mass concreting such as construction of dam. (iii) Decorative works in external surfaces of building. (iv) Cementing the oil well.

Description : Suggest the type of cement used for the following : (i) For modular construction where form work needs to be removed early for re-use. . (ii) Mass concreting such as construction of dam. (iii) Decorative works in external surfaces of building. (iv) Cementing the oil well.

Last Answer : i) For modular construction where form work needs to be removed early for reuse. – Rapid Hardening Cement ii) Mass concreting such as construction of dam. – Low heat cement. iii) Decorative works in external surfaces of building – Coloured cement. iv) Cementing the oil well. – Oil Well Cement. 

Explain the necessity of supervision for concreting operations.

Description : Explain the necessity of supervision for concreting operations.

Last Answer : Necessity of supervision for concreting operation: i. Supervision is necessary to complete all concreting operations in standard manner. ii. It is necessary to avoid any type of delay in concrete ... operations at each stage of project. vi. It found very effective in controlling bad workmanship.

A sand sample has a fineness modulus of 1.95. Whether this sand can be used for concreting? Explain the procedure to bring the fineness modulus in required permissible limits. State its importance.

Description : A sand sample has a fineness modulus of 1.95. Whether this sand can be used for concreting? Explain the procedure to bring the fineness modulus in required permissible limits. State its importance.

Last Answer : The given sand sample has a fineness modulus 1.95, which is less than prescribed limit i.e.2.2-3.2. It indicates that sand particles are finer, which is not suitable for satisfactory ... . Well graded sand is also useful for good bonding of particles and related strength criteria of concrete.

In sequence, write concreting operations.

Description : In sequence, write concreting operations.

Last Answer : i. Batching of materials ii. Mixing of materials iii. Transportation of concrete iv. Placing of concrete v. Compaction of concrete vi. Curing of concrete vii. Finishing of concrete

Write two effects and two precautions of cold weather and hot weather concreting.

Description : Write two effects and two precautions of cold weather and hot weather concreting.

Last Answer : Effects of cold weather concreting: 1. Due to cold weather, concrete shows reduced rate of hardening, which results delay in removal of formwork. 2. Water added in concrete mix gets frozen quickly, ... heat evolution. 7. High w/c ratio and ice crystals should be used to maintain workability.

Write the procedure of vaccum dewatering concreting for construction of floors.

Description : Write the procedure of vaccum dewatering concreting for construction of floors.

Last Answer : Procedure of vaccum dewatering concreting for construction of floors: The concreting using vaccum dewatering for floor construction is done as follows. 1. Concrete is places uniformly on the spread of ... Finally the floating and towelling is done to achieve better finishing of surface. 

Draw concreting operation chain in sequence.

Description : Draw concreting operation chain in sequence. 

Last Answer : Sequential chain of Concreting Operations: 

List any two precautions to be taken in cold weather concreting.

Description : List any two precautions to be taken in cold weather concreting.

Last Answer : Precautions to be taken in cold weather concreting: In extreme weather, following precautions should be taken. 1. Concreting work should be done during day time or on sunny days. 2. Warm water should ... its use. 7. Rapid hardening or quick setting cement should be used for fast setting of concrete.

Enlist any two methods of transportation of concrete.

Description : Enlist any two methods of transportation of concrete.

Last Answer : Methods of transportation of concrete: There are three methods of transportation of concrete listed below.  1. Manual method- Transportation through the hands of labour in the ghamela, wheel ... and hoist arrangement.  3. Mechanical Method- Transportation using truck, dumper, RMC vehicle.

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 correct statement from the following regarding radial flow centrifugal pumps: (A) These are provided with volute type or turbine type casings (B) In involute type of radial flow centrifugal pump, the impeller discharges into a gradually expanding spiral casing (C) The efficiency of turbine type of radial flow centrifugal pump, is always higher than that of volute type (D) All the above

Description : Pick up the correct statement from the following regarding radial flow centrifugal pumps:  (A) These are provided with volute type or turbine type casings  (B) In involute type of radial flow ... centrifugal pump, is always higher than that of  volute type  (D) All the above 

Last Answer : (D) All the above 

Reciprocating pumps (A) Are not suitable for variable heads (B) Are four times costlier than centrifugal pumps (C) Are not suitable for pumping water containing sediments (D) Single stroke produce pulsating flow

Description : Reciprocating pumps  (A) Are not suitable for variable heads  (B) Are four times costlier than centrifugal pumps  (C) Are not suitable for pumping water containing sediments  (D) Single stroke produce pulsating flow 

Last Answer : (A) Are not suitable for variable heads 

For centrifugal pumps (A) Initial cost is low (B) Limited space is required (C) The discharge obtained is steady and non-pulsating (D) All the above

Description : For centrifugal pumps  (A) Initial cost is low  (B) Limited space is required  (C) The discharge obtained is steady and non-pulsating  (D) All the above 

Last Answer : (D) All the above 

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 

Conversion of dynamic velocity head into static pressure head in a centrifugal pump is the result of : (a) Increasing area of flow between adjacent vanes from inlet to outlet (b) Difference in pressure between suction and delivery ends (c) Radial thrust in pumps (d) Stuffing Box

Description : Conversion of dynamic velocity head into static pressure head in a centrifugal pump is the result of : (a) Increasing area of flow between adjacent vanes from inlet to outlet (b) Difference in pressure between suction and delivery ends (c) Radial thrust in pumps (d) Stuffing Box

Last Answer : (b) Difference in pressure between suction and delivery ends

Two identical pumps, each capable of delivering 0.2 cumec, against a head of 30 m, are connected in parallel. The resulting discharge is : a) 0.4 cumec against a head of 30 m b) 0.4 cumec against a head of 60 m c) 0.2 cumec against a head of 30 m d) 0.2 cumec against a head of 60 m

Description : Two identical pumps, each capable of delivering 0.2 cumec, against a head of 30 m, are connected in parallel. The resulting discharge is : a) 0.4 cumec against a head of 30 m b) 0.4 cumec against a head of 60 m c) 0.2 cumec against a head of 30 m d) 0.2 cumec against a head of 60 m

Last Answer : a) 0.4 cumec against a head of 30 m

Calcination of limestone to produce lime is done in a __________ kiln. (A) Tunnel (B) Rotary (C) Vertical shaft (D) Both (B) and (C)

Description : Calcination of limestone to produce lime is done in a __________ kiln. (A) Tunnel (B) Rotary (C) Vertical shaft (D) Both (B) and (C)

Last Answer : (D) Both (B) and (C)

A water channel supported above the ground over trestles, is generally called (A) Flume (B) Canal (C) Aqueduct (D) Tunnel

Description : A water channel supported above the ground over trestles, is generally called  (A) Flume  (B) Canal  (C) Aqueduct  (D) Tunnel 

Last Answer : (A) Flume

Pick up the correct statement from the following: (A) Bull's trench kiln a trench excavated in ground (B) Hoffman's kiln is constructed over ground (C) Tunnel Kiln is constructed as a tunnel (D) All the above

Description : Pick up the correct statement from the following: (A) Bull's trench kiln a trench excavated in ground (B) Hoffman's kiln is constructed over ground (C) Tunnel Kiln is constructed as a tunnel (D) All the above

Last Answer : Answer: Option D

What are the parallel ridges on grill pans for?

Description : What are the parallel ridges on grill pans for?

Last Answer : They take some of the dripping fat away from the cooking food.