Description : When drainage is permitted under initially applied normal stress only and full primarily consolidation is allowed to take place, the test is known as (A) Quick test (B) Drained test (C) Consolidated undrained test (D) None of these
Last Answer : (C) Consolidated undrained test
Description : In a triaxial compression test when drainage is allowed during the first stage (i. e. application of cell pressure) only and not during the second stage (i.e. application of deviator ... test (B) Consolidated undrained test (C) Unconsolidated drained test (D) Unconsolidated undrained test
Last Answer : (B) Consolidated undrained test
Description : If drainage is permitted throughout the test, during the application of both normal, and shear stresses so that full consolidation occurs and no excess pore pressure is set up at any stage of the test, is ... (A) Quick test (B) Drained test (C) Consolidated undrained test (D) None of these
Last Answer : Answer: Option B
Description : The triaxial apparatus is usually used for (A) Unconsolidated-undrained test (B) Consolidated-undrained test (C) Drained test (D) All the above tests
Last Answer : Answer: Option D
Description : In a deposit of normally consolidated clay (A) Effective stress increases with depth but water content of soil and undrained strength decrease with depth (B) Effective stress and water ... decreases with depth (D) Effective stress, water content and undrained strength decrease with depth
Last Answer : C) Effective stress and undrained strength increase with depth but water content decreases with depth
Description : In a consolidated drained test on a normally consolidated clay, the volume of the soil sample during shear (A) Decreases (B) Increases (C) Remains unchanged (D) First increases and then decreases
Last Answer : (A) Decreases
Description : The vane shear test is used for the in-situ determination of the undrained strength of the intact fully saturated (A) Sands (B) Clays (C) Gravels (D) Highly organic soils
Last Answer : (B) Clays
Description : Pick up the correct statement from the following: (A) The property of a soil that enables it to become stiff in a relatively short time on standing is called thixotropy (B) The ratio ... the undisturbed shear strength and remoulded shear strength is known remoulding loss (D) All the above
Last Answer : (D) All the above
Description : The ratio of the undrained strength in the undrained state to the undrained strength, at the same water content, in the remoulded state, is called the sensivity of the clay. Its value for quick clays is (A) 4 (B) 8 (C) 12 (D) 20
Last Answer : (D) 20
Description : The shear strength in plastic undrained clay, is due to (A) Inter-granular friction (B) Internal friction (C) Cohesion (D) None of these
Last Answer : (C) Cohesion
Description : A cylindrical specimen of saturated soil failed under an axial vertical stress of 100kN/m² when it was laterally unconfmed. The failure plane was inclined to the horizontal plane at an angle of 45°. The values of cohesion and angle of ... N/mm² and 0° (C) 0.2 N/mm² and 0° (D) 0.05 N/mm² and 45°
Description : For a loose sand sample and a dense sand sample consolidated to the same effective stress (A) Ultimate strength is same and also peak strength is same (B) Ultimate strength is different but peak strength ... of dense sand is greater than that of loose sand (D) Ultimate strength is same but peak
Last Answer : (C) Ultimate strength is same but peak strength of dense sand is greater than that of loose sand
Description : Slump test of concrete is a measure of its (A) Consistency (B) Compressive strength (C) Tensile strength (D) Impact value
Last Answer : (A) Consistency
Description : The preliminary test is repeated if the difference of compressive strength of three test specimens, exceeds (A) 5 kg/cm2 (B) 8 kg/cm2 (C) 10 kg/cm2 (D) 15 kg/cm2
Description : Pick up the incorrect statement from the following. For performing compressive strength test of cement (A) Cement and standard sand mortar are used in the ratio of 1 : 3 (B) Water is added at the ... cm 10 cm is used (D) The prepared moulds are kept in a atmosphere of 50% relative humidity
Last Answer : Answer: Option A
Description : Pick up the correct statement from the following: (A) Acid test is done to find out the weathering quality of stones (B) Attrition test is done to find out the rate of wear of stones which are used ... (C) Crushing test is done to find out the compressive strength of the stone (D) All the above
Description : Smith's test of stones is performed to find out (A) The presence of soluble matter of stone (B) The compressive strength of the stone (C) The hardness of the stone (D) The toughness of the stone
Description : For performing the compressive strength test of cement, the size of cube mould should be (a) 7.06cm (b)75mm (c)80mm (d)All the above
Last Answer : (a) 7.06cm
Description : The compressive strength an ordinary Portland cement (1:3) after 7 days test should not be less than. (a) 11N/mm2 (b) 17.5 N/mm2 (c) 22 N/mm2 (d) 27.5N/m2
Last Answer : (b) 17.5 N/mm2
Description : For determining the compressive strength test on cement is, the percentage amount of water to be added as (Pa = Percentage of water for required consistency) [ A ] 0.25 Pa + 2.5 [ B ] 0.25 Pa + 3.5 [ C ] 0.35 Pa + 2.5 [ D ] 0.35 Pa + 3.5
Last Answer : [ B ] 0.25 Pa + 3.5
Description : Le-chatelier apparatus is used for [ A ] Fineness test [ B ] Consistency test [ C ] Soundness test [ D ] Compressive strength test
Last Answer : [ C ] Soundness test
Description : Slump test of concrete is a measure of its [ A ] Consistency [ B ] Compressive strength [ C ] Tensile strength [ D ] Impact value
Last Answer : [ A ] Consistency
Description : Explain the rebound hammer test procedure and show the relationship between compressive strength and rebound number with hammer horizontal and vertical on dry and wet surface of concrete.
Last Answer : Rebound Hammer Test: i. Initially the plunger of rebound hammer is Kept touching to the target concrete surface ii. Then the tubular casing of hammer is pushed towards concrete, so that the spring gets ... of concrete will be less, But if it is more, then concrete possess sufficient strength.
Description : Explain the laboratory procedure to determine the compressive strength of concrete cubes as per IS-516-1959 with reference to following points: i. Preparation of test specimen ii. Procedure of testing iii. Interpretation of results
Last Answer : Preparation of test specimen: i. Take three cubes of 15 cm sides and apply oil to its inner surface. ii. Prepare the concrete mixture of required grade and fill it in each mould in 3 layers. ... say 23N/mm 2) than the specified grade M20, then that concrete is safe and good for construction.
Description : Pick up the incorrect definition from the following: (A) Ratio of the compressive strength of unconfined undisturbed soil to that of remoulded soil, is known as the sensitivity of the soil sample (B) The ... content at which a soil flows, is known plastic limit of the soil (D) None of these
Description : Sensitivity of a soil can be defined as (A) Percentage of volume change of soil under saturated condition (B) Ratio of compressive strength of unconfined undisturbed soil to that of soil in a remoulded state (C) Ratio of volume of voids to volume of solids (D) None of the above
Description : Permissible compressive strength of M 200 concrete grade is (A) 100 kg/cm2 (B) 150 kg/cm2 (C) 200 kg/cm2 (D) 250 kg/cm2
Last Answer : (C) 200 kg/cm2
Description : Permissible compressive strength of M 300 concrete grade is (A) 100 kg/cm2 (B) 150 kg/cm2 (C) 200 kg/cm2 (D) 300 kg/cm2
Last Answer : (D) 300 kg/cm2
Description : The compressive strength of 100 mm cube as compared to 150 mm cube is always (A) Less (B) More (C) Equal (D) None of the above
Description : A higher modular ratio shows (A) Higher compressive strength of concrete (B) Lower compressive strength of concrete (C) Higher tensile strength of steel (D) Lower tensile strength of steel
Description : Modulus of rupture of concrete is a measure of (A) Flexural tensile strength (B) Direct tensile strength (C) Compressive strength (D) Split tensile strength
Last Answer : Answer: Option C
Description : Specified compressive strength of concrete is obtained from cube tests at the end of (A) 3 days (B) 7 days (C) 21 days (D) 28 day
Description : According to IS: 4561978, the flexural strength of concrete is (A) Directly proportional to compressive strength (B) Inversely proportional to compressive strength (C) Directly proportional to square root of compressive strength (D) Inversely proportional to square root of compressive strength
Description : Permissible compressive strength of M 150 concrete grade is (A) 100 kg/cm2 (B) 150 kg/cm2 (C) 200 kg/cm2 (D) 250 kg/cm2
Description : If the average compressive strength is 4000 kg/cm2 and standard deviation is 500, the co-efficient of variation is (A) 10 % (B) 12.5 % (C) 15 % (D) 18.5%
Description : Allowable shear strength of concrete, depends upon (A) Shear strength (B) Tensile strength (C) Compressive strength (D) None of these
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
Description : The minimum compressive strength of 1st class bricks should be (A) 75 kg/cm2 (B) 90 kg/cm2 (C) 100 kg/cm2 (D) 120 kg/cm2
Description : Pick up the correct statement regarding low heat cement from the following: (A) It possesses less compressive strength (B) Its initial setting time is about one hour (C) Its final setting time is about 10 hours (D) All the above
Description : Le-Chatelier's device is used for determining the (A) Setting time of cement (B) Soundness of cement (C) Tensile strength of cement (D) Compressive strength of cement
Description : According to IS specifications, the compressive strength of ordinary Portland cement after three days should not be less than (A) 7 MPa (B) 11.5 MPa (C) 16 MPa (D) 21 MPa
Description : The minimum compressive strength of 2nd class bricks should be (A) 75 kg/cm2 (B) 90 kg/cm2 (C) 100 kg/cm2 (D) 120 kg/cm
Description : Compared to mild steel, cast iron has (i) High compressive strength (ii) High tensile strength (iii) Low compressive strength (iv) Low tensile strength The correct answer is (A) (i) and (ii) (B) (ii) and (iii) (C) (iii) and (iv) (D) (i) and (iv)
Description : Soundness of cement is tested by (A) Vicat's apparatus (B) Le-chatelier apparatus (C) Compressive strength testing apparatus (D) None of these
Description : For testing compressive strength of cement, the size of cube used is (A) 50 mm (B) 70.6 mm (C) 100 mm (D) 150 mm
Last Answer : B
Description : For testing compressive and tensile strength of cement, the cement mortar is made by mixing cement and standard sand in the proportions of (A) 1 : 2 (B) 1 : 3 (C) 1 : 4 (D) 1 : 6
Description : In limit state design of concrete for flexure, the area of stress block is taken as (a) 0.530 fck. Xu (b) 0.446 fck . Xu ( c) 0.420 fck .Xu (d) 0.360 fck . Xu Where fck is characteristic compressive strength of concrete and Xu is the depth of neutral axis from top.
Last Answer : (d) 0.360 fck . Xu
Description : The most critical consideration in the design of a rolled steel column carrying axial loads is the (a) Percentage elongation at yield and the net cross-sectional area (b) Critical bending ... at ultimate load (d) Compressive strength based on slenderness ratio and gross cross-sectional area.
Last Answer : (d) Compressive strength based on slenderness ratio and gross cross-sectional area.