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 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 minimum cement content inclusive of admixtures is [ A ] 200 kg/m3 [ B ] 300 kg/m3 [ C ] 450 kg/m3 [ D ] 550 kg/m3
Last Answer : [ B ] 300 kg/m3
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 following type of environments are considered for durability of concrete [ A ] two [ B ] four [ C ] five [ D ] six
Last Answer : [ C ] five
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 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, 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 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, Limiting value of yield strain for Fe250 grade steel is [ A ] 0.031 [ B ] 0.0031 [ C ] 0.038 [ D ] 0.0038
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 : 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 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 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, 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
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 : The weight of 1 m3 of brick earth, is about (A) 1200 kg (B) 1500 kg (C) 1800 kg (D) 2000 kg
Last Answer : Answer: Option C
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
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 : The weight of reinforced concrete, is generally taken as (A) 2200 kg/m3 (B) 2300 kg/m3 (C) 2400 kg/m3 (D) 2500 kg/m
Description : The weight of reinforced concrete is generally take as (a) 2300 kg/m3 (b) 2400 kg/m3 (c) 2500kg/m3 (d) 2800kg/m3
Last Answer : (d) 2800kg/m3
Description : A bed consists of particles of density 2000 kg/m3 . If the height of the bed is 1.5 metres and its porosity 0.6, the pressure drop required to fluidise the bed by air is (A) 25.61 kPa (B) 11.77 kPa (C) 14.86 kPa (D) 21.13 kPa
Last Answer : (B) 11.77 kPa
Description : Calculate the recoverable waste heat (Q, in kCal/hour) from flue gases using the followingparameters: V (flow rate of the substance) 2000 m3/hr r (density of the flue gas): 0.9 kg/m3 Cp (specific heat ... (temperature difference): 120 oC h (recovery factor): 50% a. 21600 b. 43200 c. 25600 d. 34000
Last Answer : 21600
Description : A cement concrete road is 1000 m long, 8 m wide and 15 cm thick over the sub-base of 10 cm thick gravel. The box cutting in road crust is (A) 500 m3 (B) 1000 m3 (C) 1500 m3 (D) 2000 m3
Last Answer : (C) 1500 m3
Description : The impurity of mixing water which affects the setting time and strength of concrete, is (A) Sodium sulphates (B) Sodium chlorides (C) Sodium carbonates and bicarbonates (D) Calcium bicarbonates
Description : For which of the following classes of salts are all of its compounds soluble in water? w) sulfates x) nitrates y) hydroxides z) chlorides
Last Answer : ANSWER: X -- NITRATES
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, 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
Description : As per IS: 456, permissible bond stress for plain bars in tension, in working stress method, where M20, is the grade of concrete [ A ] 0.6 N/mm2 [ B ] 0.8 N/mm2 [ C ] 1.0 N/mm2 [ D ] 1.2 N/mm2
Last Answer : [ B ] 0.8 N/mm2
Description : As per IS: 456, permissible direct compressive stress M20 grade concrete in working stress method of designer [ A ] 5.0 N/mm2 [ B ] 7.0 N/mm2 [ C ] 10.0 N/mm2 [ D ] 20.0 N/mm2
Last Answer : [ A ] 5.0 N/mm2