Allowable crack width for reinforce concrete structure under normal conditions is
[ A ] 0
[ B ] 0.1 mm
[ C ] 0.2 mm
[ D ] 0.3 mm

1 Answer

Answer :

[ D ] 0.3 mm

Related questions

Description : In “Severe exposure” the allowable crack width at the surface of concrete should not exceed [ A ] 0.1 mm [ B ] 0.2 mm [ C ] 0.3 mm [ D ] 0.4 mm

Last Answer : [ A ] 0.1 mm

Description : In moderate exposure , the allowable crack width at the surface of concrete should be [ A ] 0.20 mm [ B ] 0.30 mm [ C ] 0.45 mm [ D ] 0.55 mm

Last Answer : [ A ] 0.20 mm

Description : According to IS:456-2000, the maximum allowable crack width (in mm) for mild type of environmental condition [ A ] 0.1 [ B ] 0.2 [ C ] 0.25 [ D ] 0.3

Last Answer : [ D ] 0.3

Description : According to IS:456-2000, the maximum allowable crack width (in mm) for mild type of environmental condition [ A ] 0.1 [ B ] 0.2 [ C ] 0.25 [ D ] 0.3

Last Answer : [ D ] 0.3

Description : Permissible width of crack at the surface of concrete for „moderate‟ environmental conditions according to IS : 456-2000 is [ A ] 0.1 mm [ B ] 0.2 mm [ C ] 0.3 mm [ D ] 0.4 mm

Last Answer : [ B ] 0.2 mm

Description : In a singly reinforced beam, if the stress in concrete reaches its allowable limit later than the steel reaches, its permissible value, the beam section is said to be (a) Under-reinforced section (b) Over-reinforced section (c) Critical section (d) Balanced section

Last Answer : (b) Over-reinforced section

Description : Pick up the incorrect statement from the following: (A) The width of the wall is constructed thicker at the base in a stepped fashion (B) A long vertical load transferring concrete structure is ... ) The pile which transfers the load to a hard rock bed at certain depth is called load bearing

Last Answer : Answer: Option D

Description : Steel beam theory is used for (A) Design of simple steel beams (B) Steel beams encased in concrete (C) Doubly reinforced beams ignoring compressive stress in concrete (D) Beams if shear exceeds 4 times allowable shear stress

Last Answer : Answer: Option C

Description : The allowable tensile stress in mild steel stirrups, reinforced cement concrete, is (A) 1400 kg/cm2 (B) 190 kg/cm2 (C) 260 kg/cm2 (D) 230 kg/cm

Last Answer : Answer: Option A

Description : Allowable shear strength of concrete, depends upon (A) Shear strength (B) Tensile strength (C) Compressive strength (D) None of these

Last Answer : Answer: Option A

Description : For an over -reinforced (singly reinforced )rectangular reinforced concrete section (a) The lever arm will be less than that for a balanced section (b) The maximum stress developed by concrete will be equal ... c) The maximum stress developed by steel will be equal to the allowable (d) All the above

Last Answer : (b) The maximum stress developed by concrete will be equal to allowable stress in concrete

Description : Maximum allowable shear stress for M25 grade concrete is [ A ] 2.5 N/mm2 [ B ] 2.8 N/mm2 [ C ] 3.1 N/mm2 [ D ] 3.5 N/mm2

Last Answer : [ C ] 3.1 N/mm2

Description : Under normal loading conditions, the tensile stressed setup in the concrete will be _________the permissible stress. (a) More than (b) Less than (c) Equal to (d) All the above

Last Answer : (a) More than

Description : Ultrasonic Pulse Velocity test is meant for a) Identifying the integrity of concrete* b) Finding the strength of concrete c) To know the crack in steel structure d) To know the flaw in rail

Last Answer : a) Identifying the integrity of concrete*

Description : Determine the length of kennedy key required to transmit 1200N-m and allowable shear in the key is 40N/mm2. The diameter of shaft and width of key can be taken as 40mm and 10mm respectively. a) 49mm b) 36mm c) 46mm d) 53mm

Last Answer : d) 53mm

Description : Determine the length of kennedy key required to transmit 1200N-m and allowable shear in the key is 40N/mm2. The diameter of shaft and width of key can be taken as 40mm and 10mm respectively. a) 49mm b) 36mm c) 46mm d) 53mm

Last Answer : d) 53mm

Description : A reinforced concrete beam will crack if tensile stress set up in the concrete below the neutral axis is (a) More than the permissible stress (b) Less than the permissible stress (c) Equal to the permissible stress (d) All the above.

Last Answer : (a) More than the permissible stress

Description : A cantilever of length 2 cm and depth 10 cm tapers in plan from a width 24 cm to zero at its free  end. If the modulus of elasticity of the material is 0.2 × 106  N/mm2 , the deflection of the free end,  is  (A) 2 mm  (B) 3 mm  (C) 4 mm  (D) 5 mm

Last Answer : (D) 5 mm

Description : A square object of 4 mm is subjected to a force of 3000 N. What is the maximum allowable shear stress acting on it? a. 250.14 mm2 b. 281.25 mm2 c. 400.32 mm2 d. 500 mm2

Last Answer : b. 281.25 mm2

Description : A circular pipe is subjected to maximum shear force of 60 kN. What is the diameter of the pipe if maximum allowable shear stress is 5 Mpa? a. 27.311 mm b. 75.56 mm c. 142.72 mm d. 692.10 mm

Last Answer : c. 142.72 mm

Description : Can grout replace concrete in normal structure?

Last Answer : The mixture of cement and water alone cannot replace concrete (Longman Scientific and Technical (1987)) because: (i) Shrinkage of grout is several times that of concrete with the same mass. (ii) ... of cement with water is more than normal concrete and this leads to the problem of severe cracking.

Description : The Manufacturer of aeration devices reports the oxygen transfer rate of the device obtained through laboratory tests carried under standard conditions. Such standard condition are : (a) Wastewater at zero DO, 25°C and 760 mm ... DO, 20°C and 760 mm Hg (d) Wastewater at zero DO, 0°C and 700 mm Hg

Last Answer : (c) Tapwater at zero DO, 20°C and 760 mm Hg

Description : For lime concrete, (A) Slump is 50 to 75 mm (B) Flexural strength at 90 days is 0.2 N/mm2 (C) Compressive strength at 90 days is 1.5 N/mm2 (D) All the above

Last Answer : Answer: Option D

Description : If the width of a pavement slab is 7.5 m, thickness 20 cm and working stress 1400 kg/cm2 , spacing of 10 mm tie bars for the longitudinal joint, is (A) 10 cm (B) 20 cm (C) 30 cm (D) 40 cm

Last Answer : Answer: Option C

Description : The aggregates required for one kilometre length of water bound macadam road per meter width and for 10 mm thickness is (A) 8 cubic meter (B) 10 cubic meter (C) 12 cubic meter (D) 15 cubic meter

Last Answer : Answer: Option C

Description : If they don’t reinforce spiked heels, should they in the case of obese women?

Last Answer : Really? I have never seen an obese woman in spike heels.

Description : Unit Test: Poetry of the Harlem RenaissanceThink about the two specific stanzas that the blues singer sings in “The Weary Blues.” What happens in each of the stanzas How does the contrast between the two songs reinforce the overall theme of the poem?

Last Answer : several of Watts's stanzas memorized

Description : How does Christianity reinforce existing social structures?

Last Answer : By being the foundational perspective of correct belief andthinking, thereby giving birth to an imperative of societal normsby which these structures themselves can pivot point from.

Description : How do the continuity and predictability of the annual ceremonies reinforce the community's values?

Last Answer : Everything is organized and controlled by the elders. So peopledon't have to think for themselves. Because they are told what todo and when to do it.

Description : What formatting features are best used to attract a readers attention and reinforce a message?

Last Answer : Feel Free to Answer

Description : How do you securely, and properly reinforce damaged roof trusses?

Last Answer : to replace trusses you need to first place alternate load-bearing measures. Run a support header beneath the ridge of your roof, to the length of your roof. Construct support walls or beams. Reinforce ... trusses after the new support system is placed and last but not least place the new trusses.

Description : The most prominent way to reinforce company brand identity on the website is known as a) Designing b) Logo c) Domain views d) None of these

Last Answer : b) Logo

Description : The notion that domestic violence is rooted in the society's laws and customs that reinforce male dominance is known as the a. Political model of domestic violence. b. Medical model of domestic violence. c. "Rule of thumb." d. Battered wife syndrome.

Last Answer : a. Political model of domestic violence.

Description : If permissible working stresses in steel and concrete are respectively 1400 kg/cm2 and 80 kg/cm2 and modular ratio is 18, in a beam reinforced in tension side and of width 30 cm and having effective depth 46 cm, the lever arms of the section, is (A) 37 cm (B) 38 cm (C) 39 cm (D) 40 cm

Last Answer : Answer: Option D

Description : The reinforced concrete beam which has width 25 cm, lever arm 40 cm, shear force 6t/cm2 , safe shear stress 5 kg/cm2 and B.M. 24 mt, (A) Is safe in shear (B) Is unsafe in shear (C) Is over safe in shear (D) Needs redesigning

Last Answer : Answer: Option B

Description : The maximum shear stress (q) in concrete of a reinforced cement concrete beam is (A) Shear force/(Lever arm × Width) (B) Lever arm/(Shear force × Width) (C) Width/(Lever arm × Shear force) (D) (Shear force × Width)/Lever arm

Last Answer : Answer: Option A

Description : Pick up the correct statement from the following: (A) A pile is a slender member which transfers the load through its lower end on a strong strata (B) A pile is a slender member which ... A pile is a cylindrical body of concrete which transfers the load at a depth greater than its width

Last Answer : Answer: Option B

Description : A singly reinforced concrete beam of 25 cm width and 70 cm effective depth is provided with 18.75 cm2 steel. If the modular ratio (m) is 15, the depth of the neutral axis, is (A) 20 cm (B) 25 cm (C) 30 cm (D) 35 cm

Last Answer : Answer: Option C

Description : The stresses developed in concrete and steel in reinforced concrete beam 25 cm width and 70 cm effective depth, are 62.5 kg/cm2 and 250 kg/cm2 respectively. If m = 15, the depth of its neutral axis is (A) 20 cm (B) 25 cm (C) 30 cm (D) 35 cm

Last Answer : Answer: Option C

Description : For calculating the allowable stress of long columns. The empirical formula 0 y/n) (1 - a l/r), is  known as  (A) Straight line formula  (B) Parabolic formula  (C) Perry's formula  (D) Rankine's formula 

Last Answer : (A) Straight line formula 

Description : For calculating the allowable stress of long columns 0 y/n [1 - a (1/r)²]is the empirical formula,  known as  (A) Straight line formula  (B) Parabolic formula  (C) Perry's formula  (D) Rankine's formula 

Last Answer : (B) Parabolic formula 

Description : Maximum allowable spacing of shear reinforcement for inclined stirrups with an inclination of 45° is restricted to [ A ] 0.75 d [ B ] 0.45 d [ C ] 0.90 d [ D ] d

Last Answer : [ D ] d

Description : Maximum allowable spacing of shear reinforcement for vertical stirrups is restricted to [ A ] d [ B ] 0.45 d [ C ] 0.75 d [ D ] 0.90 d

Last Answer : [ C ] 0.75 d

Description : Select the incorrect statement [ A ] R.C.C has better fire resistance than steel [ B ] R.C.C. structure is economical than steel structure [ C ] Strength of concrete decreases as age increases [ D ] R.C.C can be used for under water and marine structures

Last Answer : [ C ] Strength of concrete decreases as age increases

Description : do byrd of paradise plant roots crack concrete patio covers

Last Answer : Need Answer

Description : How to Waterproof a Crack in Basement Concrete?

Last Answer : Thousands of homes have basement floods each year because of cracks in their concrete. The best thing to do to prevent it happening again is filling the crack. A layer of polyurethane foam can be the ... wall. You should start at the lowest point of the crack and make sure that the sealer is

Description : Cement pressure grouting is suitable for a) Very fine crack b) weathered concrete c) Active crack where cause of crack is known and remedial action has been taken* d) Crushed masonry

Last Answer : c) Active crack where cause of crack is known and remedial action has been taken

Description : Motor name plate data includes '°°C rise'. This indicates the _____________. A. actual running temperature of the winding from no load to full load B. permissible temperature rise ... above normal full load operating temperature D. maximum allowable temperature rise for continuous no load service

Last Answer : Answer: B

Description : An insulation resistance test is performed on a particular piece of electric equipment. In addition to the resistance reading, what information listed below should be entered in the electrical log? A. ... D. The complete nameplate data from the resistance test instrument used to obtain the reading.

Last Answer : Answer: B

Description : If a concrete column 200 200 mm in cross-section is reinforced with four steel bars of 1200  mm2  total cross-sectional area. Calculate the safe load for the column if permissible stress in  concrete is 5 N/mm2 ... 15 Ec (A) 264 MN  (B) 274 MN  (C) 284 MN  (D) 294 MN 

Last Answer : (C) 284 MN