Post tensioning system (A) Was widely used in earlier days (B) Is not economical and hence not generally used (C) Is economical for large spans and is adopted now a days (D) None of these

Post tensioning system
(A) Was widely used in earlier days
(B) Is not economical and hence not generally used
(C) Is economical for large spans and is adopted now a days
(D) None of these
by

1 Answer

Answer :

Answer: Option D
by

Related questions

Select the incorrect statement (A) The loss of pre-stress is more in pre-tensioning system than in post-tensioning system. (B) Pre-tensioning system has greater certainty about its durability. (C) For heavy loads and large spans in buildings or bridges, post-tensioning system is cheaper than pre-tensioning system (D) None of the above

Description : Select the incorrect statement (A) The loss of pre-stress is more in pre-tensioning system than in post-tensioning system. (B) Pre-tensioning system has greater certainty about its durability. (C ... or bridges, post-tensioning system is cheaper than pre-tensioning system (D) None of the above

Last Answer : Answer: Option D

Beams of uniform strength are preferred to those of uniform section because these are economical for (A) Large spans (B) Heavy weights (C) Light weights (D) Short spans

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Last Answer : (A) Large spans

For what type of structures do you recommend post-tensioning?

Description : For what type of structures do you recommend post-tensioning?

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Which of the following describes an ERP system? A. ERP systems provide a foundation for collaboration between departments B. ERP systems enable people in different business areas to communicate C. ERP systems have been widely adopted in large organisations to store critical knowledge used to make the decisions that drive the organisation's performance D. All of the above

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Last Answer : D. All of the above

You are asked to design and supervise a truss for a factory to have spans 6 m to 9 m. The type of the truss you will use, is (A) Mansard truss (B) Queen post truss (C) King post truss (D) Collar truss

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Which of the following losses of pre-stress occurs only in pre-tensioning and not in posttensioning? (A) Elastic shortening of concrete (B) Shrinkage of concrete (C) Creep of concrete (D) Loss due to frictio

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Singing of telephone wires in the wind occurs due to : (a) Vibrations caused by birds as they sit on or get off, the wires (b) Tensioning at the ends (c) Magnus effect (d) Generation of Karman Vortex street

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Under normal conditions using an ordinary cement, the period of removal of the form work, is: (A) 7 days for beam soffits (B) 14 days for bottom slabs of spans 4.6 m and more (C) 21 days for bottom beams over 6 m spans (D) All the above

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The entire range of the electromagnetic spectrum spans a large spectrum of wave lengths varying from: (A) 10-10 to 106 m (B) 10-8 to 106 m (C) 10-10 to 1010 m (D) 10-8 to 108 m

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Glucokinase (A) Is widely distributed and occurs in most mammalian tissues (B) Has a high km for glucose and hence is important in the phosphorylation of glucose primarily after ingestion of a carbohydrate rich meal (C) Is widely distributed in Prokaryotes (D) None of these

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Generally the weir is aligned at right angles to the direction of the main river current because (A) It ensures less length of the weir (B) It gives better discharging capacity (C) It is economical (D) All of the above

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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

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For railway bridges with spans in excess of 30.5m, generally provided with a) deck type girders b) open web through girders* c) semi through girders d) shallow type girders

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Draw a neat labeled diagram of Automatic Weight Tensioning and Temperature Compensation and give any two advantages of the same.

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In an earlier post I asked about monster teachers, now how about classmates that made school life a misery for you?

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In a well planned city, the layout of distribution pipes generally adopted, is (A) Grid-iron system (B) Interlaced system (C) Reticulation system (D) All the above

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Why is the span length ratio of end span/approach span to its neighboring inner spans usually about 0.75?

Description : Why is the span length ratio of end span/approach span to its neighboring inner spans usually about 0.75?

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The three moments equation is applicable only when (A) The beam is prismatic (B) There is no settlement of supports (C) There is no discontinuity such as hinges within the span (D) The spans are equal

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Last Answer : (C) There is no discontinuity such as hinges within the span

An R.C.C. roof slab is designed as a two way slab if (A) It supports live loads in both directions (B) The ratio of spans in two directions is less than 2 (C) The slab is continuous over two supports (D) The slab is discontinuous at edges

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Last Answer : Answer: Option B

If l1 and l2 are the lengths of long and short spans of a two way slab simply supported on four edges and carrying a load w per unit area, the ratio of the loads split into w1 and w2acting on strips parallel to l2 and l1 is (A) w1/w2 = l2/l1 (B) w1/w2 = (l2/l1)² (C) w1/w2 = (l2/l1)3 (D) w1/w2 = (l2/l1)

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Last Answer : Answer: Option D

If the ratio of long and short spans of a two way slab with corners held down is r, the actual reduction of B.M. is given by (A) (5/6) (r/1 + r²) M (B) (5/6) (r²/1 + r²) M (C) (5/6) (r²/1 + r3 ) M (D) (5/6) (r²/1 + r4 ) M

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Last Answer : Answer: Option D

Long and short spans of a two way slab are ly and lx and load on the slab acting on strips parallel to lx and ly be wx and wy respectively. According to Rankine Grashoff theory (A) (wx /wy ) = (ly /lx ) (B) (wx/wy) = (ly/lx)² (C) (wx /wy ) = (ly /lx )4 (D) None of these

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Last Answer : Answer: Option C

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Couple roof is used for spans (A) 3.5 m or less (B) 3.5 m but less than 5 m (C) 5 m but less than 6.5 m (D) 6.5 m but less than 8 m

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When the slab is supported on all the four edges and the ratio of long span to short span is small, bending takes place along both the spans, such a slab is known as (a) Slab spanning in one direction (b) One way slab. (c) Slab spanning in two direction. (d) Two-way slab.

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Last Answer : (d) Two-way slab.

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Basic values of span/effective depth ratios to be used for beams and slabs with spans [ A ] Less than 10m [ B ] Less than 20 m [ C ] 10 m- 20 m [ D ] More than 20 m

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The distances AC and BC are measured from two fixed points A and B whose distance AB is known. The point C is plotted by intersection. This method is generally adopted in (A) Chain surveying (B) Traverse method of surveys (C) Triangulation (D) None of these

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If the width of the foundation for two equal columns is restricted, the shape of the footing generally adopted, is (A) Square (B) Rectangular (C) Trapezoidal (D) Triangular

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Pick up the correct specification of one-room quarters generally adopted from the following: (A) Six quarters in a row (B) The size of room is either 3.5 m × 3 m or 4.2 m × 2.5 m (C) The front verandah is kept 2 m wide (D) All the above

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Vacuum is generally maintained in the vapour space of an evaporator mainly to (A) Get economical temperature difference by using moderate pressure steam (B) Facilitate forward feeding in multiple effect evaporation (C) Concentrate heat sensitive materials (D) Achieve very high concentration of the final product

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For a consumer the most economical power factor is generally?

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Nuclear fuel generally used in reactors is uranium oxide instead of uranium, because the former has higher (A) Melting point, hence can be subjected to higher temperature (B) Density; hence core volume for a given power output would be smaller (C) Resistance to effects of irradiation (D) All (A), (B) and (C)

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

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Direct method of contouring is (A) A quick method (B) Adopted for large surveys only(C) Most accurate method (D) Suitable for hilly terrains

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Chain surveying is well adopted for (A) Small areas in open ground (B) Small areas with crowded details (C) Large areas with simple details (D) Large areas with difficult details

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A pre-stressed concrete member is preferred because (A) Its dimensions are not decided from the diagonal tensile stress (B) Large size of long beams carrying large shear force need not be adopted (C) Removal of cracks in the members due to shrinkage (D) All the above

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Last Answer : Answer: Option D

If large family group is flying together , then is it economical to have private aircraft charter than to buy many tickets of commercial airline?

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For transporting large quantities of crude oil on land, over long distances the moat economical mode is (a) by pipelines (b) by rail tankers (c) by road tankers (d) by river barges

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

The most economical flow control valve for use with large diameter pipes is a (A) Butterfly valve (B) Globe valve (C) Needle valve (D) None of these

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The use of a freight forwarder A)is not always economical for a small firm. B)usually increases transit time and shipping costs. C)usually increases transit time and sometimes lowers shipping costs. D)lowers shipping costs for a large firm. E)usually reduces transit time.

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Last Answer : E)usually reduces transit time.

Pick out the wrong statement. (A) Loamy soil is the best soil for vigorous plant growth, while the clayey soil is solid and hence the plant roots penetrate with difficulty (B) Large excess use of nitrogenous fertiliser in land causes the problem of diarrhoea and cyanosis (C) Application of large excess of Potassic fertiliser in soil increases the valuable carotene in fruits and vegetables (D) Cereal crops grown on alkaline soil absorb higher amount of fluorides thereby spreading fluorosis

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Last Answer : (C) Application of large excess of Potassic fertiliser in soil increases the valuable carotene in fruits and vegetables

If Q is discharge is cubic metres per sec and D is the economical diameter of the pipe. According to Lea (A) D = 0.67 to 0.87 Q (B) D = 0.77 to 0.97 Q (C) D = 0.97 to 1.22 Q (D) D = 1.22 to 1.33 Q

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Last Answer : (C) D = 0.97 to 1.22 Q

For calculation of economical diameter D of a pipe in metres for a discharge Q to be pumped in cumecs, Lea suggested the empirical formula (A) D = 0.22 Q (B) D = 1.22 Q (C) D = 2.22 Q (D) D = 3.22 Q

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Last Answer : (B) D = 1.22 Q

If the chosen diameter of a pipe, is less than the economical diameter (A) Cost of pipe will be less (B) Head loss will be high (C) Cost of pumping will be more than saving (D) All the above

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Last Answer : (D) All the above

To pump water from a water reservoir 3 m deep and maximum water level at 135 m, a pump is installed to lift water up to R.L. 175 m at a constant rate of 36,00,000 litres per hour. If the length of the pipe is 1506 m and f = 0.01, ignoring other minor losses and assuming the economical diameter from Lea's formula D = 1.2 Q, the water horse power of the pump is (A) 400 (B) 450 (C) 500(D) 600

Description : To pump water from a water reservoir 3 m deep and maximum water level at 135 m, a pump is  installed to lift water up to R.L. 175 m at a constant rate of 36,00,000 litres per hour. If the length  of the ... the water horse power of the pump is  (A) 400  (B) 450  (C) 500 (D) 600

Last Answer : (D) 600

The areas of cross-section of a square beam and a circular beam subjected to equal bending moments, are same. (A) Circular beam is more economical (B) Square beam is more economical (C) Both the beams are equally strong (D) Both the beams are equally economical

Description : The areas of cross-section of a square beam and a circular beam subjected to equal bending  moments, are same.  (A) Circular beam is more economical  (B) Square beam is more economical  (C) Both the beams are equally strong  (D) Both the beams are equally economical 

Last Answer : (B) Square beam is more economical