Description : The size of fine aggregates does not exceed (A) 2.75 mm (B) 3.00 mm (C) 3.75 mm (D) 4.75 mm
Last Answer : Answer: Option D
Description : I.S. Sieve Nos. 10 mm and 4.75 mm are generally used for grading of (A) Coarse aggregates (B) Fine aggregates (C) Neither (a) nor (b) (D) Both (a) and (b)
Description : If aggregates completely pass through a sieve of size 75 mm and are retained on a sieve of size 60 mm, the particular aggregate will be flaky if its minimum dimension is less than (A) 20.5 mm (B) 30.5 mm (C) 40.5 mm (D) 50.5 mm
Last Answer : Answer: Option C
Description : If a grading curve is horizontal between the portions of 20 mm I.S. Sieve and 4.75 mm I.S. Sieve, the graded aggregates do not contain (A) 20 mm particles (B) 10 mm particles (C) 4.75 mm particles (D) All the above
Description : Which of the following statement is correct (a) The maximum size of coarse aggregate should not exceed one fourth of the minimum dimension of the plain concrete member. (b) The maximum size of coarse ... aggregates of 40mm, 20mm and 10mm sizes are commonly used for concrete works (d) All the above
Last Answer : (d) All the above
Description : Pick up the correct statement from the following: (A) The maximum size of a coarse aggregate, is 75 mm and minimum 4.75 mm (B) The maximum size of the fine aggregate, is 4.75 mm and minimum 0.075 mm ( ... having particles of size varying from 0.06 mm to 0.002 mm, is known as silt (D) All the ab
Description : The Pitch of helixes in circular columns shall not exceed [ A ] 25 mm [ B ] 50 mm [ C ] 60 mm [ D ] 75 mm
Last Answer : [ D ] 75 mm
Description : The maximum permissible size of aggregates to be used in casting the ribs of a slab, is (A) 5 mm (B) 7.5 mm (C) 10 mm (D) 15 mm
Description : For the construction of cement concrete dams, the maximum permissible size of the aggregates, is (A) 40 mm (B) 50 mm (C) 60 mm (D) 70 mm
Last Answer : Answer: Option A
Description : Gravels (A) Are cohesionless aggregates (B) Vary in size between 2 to 20 mm (C) Never swell when they come into contact with water (D) All the above
Description : For reinforced concrete work, aggregates having a nominal size of -------- are generally used [ A ] 20 mm [ B ] 40 mm [ C ] 50 mm [ D ] 60 mm
Last Answer : [ A ] 20 mm
Description : To ensure constant moisture content in aggregates (A) Area of each aggregate pile should be large (B) Height of each aggregate pile should not exceed 1.50 m (C) Aggregate pile should be left for 24 hours before aggregates are used (D) All the above
Description : If X, Y and Z are the fineness modulli of coarse, fine and combined aggregates, the percentage (P) of fine aggregates to combined aggregates, is (A) P = [(Z - X)/(Z - Y)] × 100 (B) P = [(X - Z)/(Z - Y)] × 100 (C) P = [(X - Z)/(Z + Y)] × 100 (D) P = [(Z + X)/(Z - Y)] × 100
Last Answer : Option B
Description : For preparing a test-specimen, it is necessary (A) To mix cement and fine aggregate by dry hand (B) To mix coarse aggregates (C) To mix water to the cement, fine aggregates and coarse aggregates (D) All the above
Description : If 50 kg of fine aggregates and 100 kg of coarse aggregates are mixed in a concrete whose water cement ratio is 0.6, the weight of water required for harsh mix, is (A) 8 kg (B) 10 kg (C) 12 kg (D) 14 kg
Description : In the method of voids for determination of the quantity of cement paste, it is assumed that (A) Voids in coarse aggregates are filled by fine aggregates (B) Voids in fine aggregates are filled by ... of fine aggregates is equal to total voids in coarse aggregates plus 10% extra (D) All the above
Description : If P, Y and Z are the weights of cement, fine aggregates and coarse aggregates respectively and W/C is the water cement ratio, the minimum quantity of water to be added to first batch, is obtained by the equation (A) 0.1P + 0.3Y + 0. ... + 0.2Y + 0.01Z = W/C P (D) 0.5P + 0.3Y + 0.01Z = W/C P
Last Answer : Answer: Option B
Description : The maximum amount of dust which may be permitted in aggregates is (A) 5% of the total aggregates for low workability with a coarse grading (B) 10% of the total aggregates for low workability with ... of the total aggregates for a mix having high workability with fine grading (D) All the above
Description : Internal friction between the ingredients of concrete, is decreased by using (A) Less water (B) Fine aggregates (C) Rich mix (D) More water and coarse aggregates
Description : Index number expressing the relative sizes of both coarse and fine aggregates, is called (A) Proportioning of aggregates (B) Fineness modulus (C) Grading of aggregates (D) None of these
Description : Pick up the correct statement from the following: (A) Plain cement concrete is equally strong in compression as well as in tension (B) Slump test is performed to check concrete strength (C ... D) Fineness modulus is the index number expressing the relative sizes of both coarse and fine aggregates
Last Answer : Option D
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
Description : Pick up the correct statement about silt soil from the following: (A) The silt soil has particle size from 0.02 mm to 0.06 mm (B) In organic fine grained silt soil possesses no ... The least plastic type normally consists of more or less equidimensional grains of quartz (D) All the above
Description : The proportion of coarse aggregates to fire aggregates in structural concrete is usually [ A ] 0.50 - 1.25 [ B ] 1.25 - 4.50 [ C ] 1.50 - 2.50 [ D ] 0.25 - 0.75
Last Answer : [ C ] 1.50 - 2.50
Description : For determining the ultimate bearing capacity of soil, the recommended size of a square bearing plate to be used in load plate test should be 30 to 75 cm square with a minimum thickness of (A) 5 mm (B) 10 mm (C) 15 mm (D) 25 mm
Description : For a continuous slab of 3 m × 3.5 m size, the minimum overall depth of slab to satisfy vertical deflection limits is (A) 50 mm (B) 75 mm (C) 100 mm (D) 120 mm
Last Answer : (B) 75 mm
Description : A load of 1960 N is raised at the end of a steel wire. The minimum diameter of the wire so that stress in the wire does not exceed 100 N/mm2 is: (A) 4.0 mm (B) 4.5 mm (C) 5.0 mm (D) 5.5 mm
Last Answer : (C) 5.0 mm
Description : Probable accidental error in precise levelling as recommended by International Geodetic Association should not exceed (where k is in kilometers.) (A) ± 0.1 k mm (B) ± 0.5 k mm (C) ± 1 k mm (D) ± 5 k mm
Last Answer : (C) ± 1 k mm
Description : For an ordinary Portland cement (A) Residual does not exceed 10% when sieved through IS Sieve No. 9 (B) Soundness varies from 5 to 10 mm (C) Initial setting time is not less than 30 minutes (D) Compressive stress after 7 days, is not less than 175 kg/cm2
Last Answer : (C) Initial setting time is not less than 30 minutes
Description : According to IS classification, the range of silt size particles is (A) 4.75 mm to 2.00 mm (B) 2.00 mm to 0.425 mm (C) 0.425 mm to 0.075 mm (D) 0.075 mm to 0.002 mm
Last Answer : (D) 0.075 mm to 0.002 mm
Description : An aggregate is known as cyclopean aggregate if its size is more than (A) 4.75 mm (B) 30 mm (C) 60 mm (D) 75 mm
Description : A reinforced concrete slab is 75 mm thick. The maximum size of reinforcement bar that can be used is (a) 6 mm diameter (b) 8 mm diameter (c) 10 mm diameter (d) 12 mm diameter
Last Answer : (b) 8 mm diameter
Description : For a continuous slab of 3 m x 35 m size, the minimum overall depth of slab to satisfy vertical deflection limits is (a) 120 mm (b) 100 mm (c) 75 mm (d) 50 mm
Last Answer : (a) 120 mm
Description : In precision theodolite traverse if included angles are read twice and the mean reading accepted using both verniers having a least count of 30". Assuming the instrument to be in perfect adjustment, linear measurements correct to 6 mm per ... legs) (A) 50" n (B) 30" n (C) 60" n (D) None of these
Last Answer : (A) 50" n
Description : Probable systematic error in precise levelling as recommended by International Geodetic Association should not exceed (where is in kilometers.) (A) ± 0.1 k mm (B) ± 0.2 k mm (C) ± 0.1 k (D) 0.2 k mm
Last Answer : (D) 0.2 k mm
Description : In testing a pile by load test, pile platform is loaded with one and half times the design load and a maximum settlement is noted. The load is gradually removed and the consequent rebound is measured. For a safe pile, the net ... load should not exceed (A) 10 mm (B) 15 mm (C) 20 mm (D) 25 mm
Description : Which of the following statements is incorrect? (A) Minimum cross sectional area of longitudinal reinforcement in a column is 0.8% (B) Spacing of longitudinal bars measured along the periphery of ... (D) The number of longitudinal bars provided in a circular column should not be less than four
Description : The type of ashlar masonry in which stones are finely chisel dressed and thickness of joints does not exceed 3 mm, is (A) Chamfered ashlar masonry (B) Ashlar facing masonry (C) Random coursed ashlar masonry (D) Coursed ashlar masonry
Description : The differential settlement in case of foundations on sandy soils should not exceed (A) 25 mm (B) 40 mm (C) 65 mm (D) 100 mm
Description : Select the incorrect statement from the following [ A ] Reinforcing bars in a column should not be less than 12 mm in diameter [ B ] The number of longitudinal bars in a circular column should not ... The minimum percentage of longitudinal steel in columns should be 0.8% [ D ] None of the above
Last Answer : [ B ] The number of longitudinal bars in a circular column should not exceed four
Description : In slabs the Maximum horizontal distance between parallel main reinforcement should not exceed i.Three times effective depth ii Five times effective depth iii 300mm iv 450 mm [ A ] i and iii [ B ] i and iv [ C ] ii and iii [ D ] ii and iv
Last Answer : [ A ] i and iii
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 : 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 maximum of spacing of side face reinforcement shall not exceed [ A ] 300 mm [ B ] Web thickness [ C ] Lesser of (a) and (b) [ D ] Greater of (a) and (b)
Last Answer : [ C ] Lesser of (a) and (b)
Description : An exceptional grade may be provided upto 1 in 12 along hill roads, if the length does not exceed (A) 45 m per km (B) 60 m per km (C) 75 m per km (D) 90 m per km
Description : The heat of hydration for low heat cement at the age of 7 days shall not exceed [ A ] 80 cal / gm [ B ] 75 cal / gm [ C ] 70 cal / gm [ D ] 65 cal / gm
Last Answer : [ D ] 65 cal / gm
Description : The 28 days cube strength of mass concrete using aggregates of maximum size 5 cm for gravity dams should be (A) Between 150 to 300 kg/cm2 (B) Between 350 to 600 kg/cm2 (C) Between 150 to 500 kg/cm2 (D) Below 200 kg/cm2
Description : Froth floatation is used for (A) Washing fine coal dust (< 0.5 mm size) (B) Washing lump coal (> 80 mm size) (C) Removing ash from the coal based on difference in specific gravity of coal and ash
Last Answer : (A) Washing fine coal dust (< 0.5 mm size)
Description : The factor which affects workability, is (A) Water content and its temperature (B) Shape and size of the aggregates (C) Air entraining agents (D) All the above
Last Answer : (D) All the above
Description : The bulk density of aggregates does not depend upon: (A) Size and shape of aggregates (B) Specific gravity of aggregates (C) Grading of aggregates (D) Size and shape of the container