According to IS:456-2000, the following type of environments are considered for durability of concrete
[ A ] two
[ B ] four
[ C ] five
[ D ] six

1 Answer

Answer :

[ C ] five

Related questions

Description : According to IS:456-2000, the following type of environments are considered for durability of concrete [ A ] two [ B ] four [ C ] five [ D ] six

Last Answer : [ C ] five

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 : According to IS:456-2000, the total acid soluble chlorides in concrete is restricted to________ of concrete [ A ] 0.2 kg/m3 [ B ] 0.4 kg/m3 [ C ] 2 kg/m3 [ D ] 4 kg/m3

Last Answer : [ B ] 0.4 kg/m3

Description : According to IS:456-2000, the total acid soluble chlorides in concrete is restricted to________ of concrete [ A ] 0.2 kg/m3 [ B ] 0.4 kg/m3 [ C ] 2 kg/m3 [ D ] 4 kg/m3

Last Answer : [ B ] 0.4 kg/m3

Description : Nominal cover for M30 grade concrete in moderate exposure is (as per IS:456-2000) [ A ] 20 mm [ B ] 30 mm [ C ] 45 mm [ D ] 50 mm

Last Answer : [ B ] 30 mm

Description : Nominal cover for M30 grade concrete in moderate exposure is (as per IS:456-2000) [ A ] 20 mm [ B ] 30 mm [ C ] 45 mm [ D ] 50 mm

Last Answer : [ B ] 30 mm

Description : As per 1S: 456-2000, minimum grade of concrete in seat water constructions is [ A ] M20 [ B ] M25 [ C ] M30 [ D ] M50

Last Answer : [ C ] M30

Description : As per IS: 456-2000, recommended value for standard deviation for concrete mix from M30 to M50 is [ A ] 1 N/mm2 [ B ] 2 N/mm2 [ C ] 4 N/mm2 [ D ] 5 N/mm2

Last Answer : [ D ] 5 N/mm2

Description : As per IS: 456-2000, modulus of elasticity of concrete (in N/mm2) is given by [ A ] 5700 vfCK [ B ] 5000 vfCK [ C ] 3700 vfCK [ D ] 3000 vfCK

Last Answer : [ B ] 5000 vfCK

Description : Minimum grade of concrete for R.C.C. should be _________ , as per IS. 456-2000 [ A ] M10 [ B ] M14 [ C ] M20 [ D ] M25

Last Answer : [ C ] M20

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 : According to IS: 456-2000, the span/overall depth ratio for a continuous two-way slab in order to control deflection is given by [ A ] 20 [ B ] 28 [ C ] 32 [ D ] 40

Last Answer : [ C ] 32

Description : The span/over all depth ratio for a simply supported two-way slab according to IS : 456- 2000 is given by [ A ] 20 [ B ] 28 [ C ] 32 [ D ] 40

Last Answer : [ B ] 28

Description : According to IS:456-2000, the minimum slenderness ratio for a short column is [ A ] Less than 12 [ B ] Between 12 and 18 [ C ] Less than 18 [ D ] Must be greater than 18

Last Answer : [ A ] Less than 12

Description : Which of the following method that is used to taken into account the slenderness effect of columns according to IS:456 - 2000 [ A ] Reduction coefficient method [ B ] Slenderness method [ C ] Moment magnification method [ D ] None of the above

Last Answer : [ A ] Reduction coefficient method

Description : According to IS: 456 -2000, the spacing of links in a Column should be less than [ A ] 16 x diameter of smallest longitudinal bar [ B ] 24 x diameter of smallest longitudinal bar [ C ] 48 x diameter of smallest longitudinal bar [ D ] 48 x diameter of greatest longitudinal bar

Last Answer : [ A ] 16 x diameter of smallest longitudinal bar

Description : In any case, the minimum diameter of the link in a column, according to IS:456-2000 is [ A ] 5 mm [ B ] 6 mm [ C ] 8 mm [ D ] 10 mm

Last Answer : [ B ] 6 mm

Description : According to IS:456-2000, the minimum eccentricity in no case [ A ] Shall be not less than 20mm [ B ] Shall be not greater than 30mm [ C ] Shall be 20mm-30mm [ D ] None of the above

Last Answer : [ A ] Shall be not less than 20mm

Description : According to IS: 456-2000 the ultimate moment of resistance of a slab for Fe - 415 HYSD bars is; [ A ] Mu = 0.138 fck bd2 [ B ] Mu = 0.145 fck bd2 [ C ] Mu = 0.152 fck bd2 [ D ] Mu = 0.165 fck bd2

Last Answer : [ A ] Mu = 0.138 fck bd2

Description : According to IS : 456-2000, clause 39.4, stirrups should be provided for a shear of [ A ] at least 75% [ B ] at least 50% [ C ] at least 25 % [ D ] none of the above.

Last Answer : [ B ] at least 50%

Description : The diameter of the stirrups according to IS : 456-2000 should not be less than [ A ] 5 mm [ B ] 6 mm [ C ] 8 mm [ D ] 10 mm

Last Answer : [ B ] 6 mm

Description : According to IS: 456-2000 Maximum spacing of shear reinforcement in no case shall not exceed [ A ] 250 mm [ B ] 300 mm [ C ] 350 mm [ D ] 450 mm

Last Answer : [ B ] 300 mm

Description : According to IS:456-2000, Limiting value of yield strain for Fe250grade steel is [ A ] 0.031 [ B ] 0.0031 [ C ] 0.038 [ D ] 0.0038

Last Answer : [ B ] 0.0031

Description : According to IS: 456-2000, limiting value of yield strain for Fe415 grade steel is [ A ] 0.031 [ B ] 0.0031 [ C ] 0.038 [ D ] 0.0038

Last Answer : [ D ] 0.0038

Description : According to IS: 456-2000, the maximum cement content exclusive of admixtures is [ A ] 200 kg/m3 [ B ] 300 kg/m3 [ C ] 450 kg/m3 [ D ] 550 kg/m3

Last Answer : [ C ] 450 kg/m3

Description : According to IS:456-2000, Limiting value of yield strain for Fe250 grade steel is [ A ] 0.031 [ B ] 0.0031 [ C ] 0.038 [ D ] 0.0038

Last Answer : [ B ] 0.0031

Description : According to IS: 456-2000, limiting value of yield strain for Fe415 grade steel is [ A ] 0.031 [ B ] 0.0031 [ C ] 0.038 [ D ] 0.0038

Last Answer : [ D ] 0.0038

Description : According to IS: 456-2000, the maximum cement content exclusive of admixtures is [ A ] 200 kg/m3 [ B ] 300 kg/m3 [ C ] 450 kg/m3 [ D ] 550 kg/m3

Last Answer : [ C ] 450 kg/m3

Description : According to IS: 456-2000 spacing of vertical stirrups for shear reinforcement has been limited to [ A ] 0.75 d [ B ] 450 mm [ C ] lesser of 0.75 d or 300 mm [ D ] lesser of 0.75d or 450 mm

Last Answer : [ C ] lesser of 0.75 d or 300 mm

Description : If the average bending stress is 6 kg/cm2 for M 150 grade concrete, the length of embedment of a bar of diameter d according to I.S. 456 specifications, is (A) 28 d (B) 38 d (C) 48 d (D) 58 d

Last Answer : Answer: Option D

Description : According to I.S. : 456 specifications, the safe diagonal tensile stress for M 150 grade concrete, is (A) 5 kg/cm2 (B) 10 kg/cm2 (C) 15 kg/cm2 (D) 20 kg/cm

Last Answer : Answer: Option A

Description : According to I.S.: 456, 1978 the thickness of reinforced concrete footing on piles at its edges, is kept less than (A) 20 cm (B) 30 cm (C) 40 cm (D) 75 cm

Last Answer : Answer: Option B

Description : According to I.S.: 456, 1978 the thickness of reinforced concrete footing on piles at its edges, is kept less than (A) 5 cm (B) 10 cm (C) 15 cm (D) 20 cm

Last Answer : Answer: Option C

Description : According to I.S. : 456, the number of grades of concrete mixes, is (A) 3 (B) 4 (C) 5 (D) 7

Last Answer : (D) 7

Description : According to IS 456, minimum slenderness ratio for a short concrete column is (a) Less than 12 (b) Between 12 and 18 (c) Between 18 and 24 (d) More than 24

Last Answer : (a) Less than 12

Description : According to I.S. : 456, slabs which span in two directions with corners held down, are assumed to be divided in each direction into middle strips and edge strips such that the width of the middle strip, is ... (C) Three-fourth of the width of the slab (D) Four-fifth of the width of the slab

Last Answer : Answer: Option C

Description : As per IS: 456-2000, the maximum size of aggregate is [ A ] 1/4 of maximum thickness of member [ B ] 1/4 of minimum thickness of member [ C ] 1/5 of maximum thickness of member [ D ] 1/5 of minimum thickness of member

Last Answer : [ B ] 1/4 of minimum thickness of member

Description : The advantage of reinforced concrete, is due to (A) Monolithic character (B) Fire-resisting and durability (C) Economy because of less maintenance cost (D) All the abov

Last Answer : Answer: Option D

Description : The compaction of concrete, improves (A) Density (B) Strength (C) Durability (D) All the abov

Last Answer : (D) All the above

Description : Grading of sand causes great variation in (A) Workability of concrete (B) Strength of concrete (C) Durability of concrete (D) All the above

Last Answer : (D) All the above

Description : Proper proportioning of concrete, ensures (A) Desired strength and workability (B) Desired durability (C) Water tightness of the structure (D) All the above

Last Answer : Option D

Description : Pick up the correct statement from the following: (A) Water cement paste hardens due to hydration (B) During hardening cement binds the aggregates together (C) Cement provides strength, durability and water tightness to the concrete (D) All the above

Last Answer : Answer: Option D

Description : Slump test for concrete is carried out, to determine (A) Strength (B) Durability (C) Workability (D) Water content

Last Answer : Answer: Option C

Description : The deleterious materials present in the aggregate (a) Prevent normal hydration of cement (b) Reduce the strength and durability of concrete. (c) Modify the setting action and cause efloresecence. (d) All of the above

Last Answer : (d) All of the above

Description : The strength of durability of concrete depends upon. (a) Size of aggregates (b) Grading of aggregates (c) Moisture contents of aggregates (d) All of these.

Last Answer : (d) All of these.

Description : The grade of concrete not recommended by I.S. : 456, is (A) M 100 (B) M 200 (C) M 300 (D) M 500

Last Answer : (D) M 500

Description : As per IS :456-1978, the permissible value of bond – stress for M15 grade of concrete is (a) 0.5 N/mm2 (b) 1 N/mm2 (c) 1.5 N/mm2 (d) 2 N/mm2

Last Answer : (b) 1 N/mm2

Description : As per IS:456-1978, the concrete mixes are designated into (a) 4 grades (b) 5 grades (c) 6 grades (d) 7 grades

Last Answer : (d) 7 grades

Description : As per IS:456, maximum shear stress for M20 glade concrete in working stress method is [ A ] 1.6 N/mm2 [ B ] 1.8 N/mm2 [ C ] 2.0 N/mm2 [ D ] 2.2 N/mm2

Last Answer : [ B ] 1.8 N/mm2