Description : In cement pressure grouting, water cement ratio is kept as a) 0.4 to 0.5* b) 0.3 to 0.4 c) 0.25 to 0.35 d) 0.35 to 0.5
Last Answer : a) 0.4 to 0.5*
Description : The volume of a bag of cement in cubic meters is about a) 0.035* b) 0.35 c) 0.53 d) .053
Last Answer : a) 0.035*
Description : In cement pressure grouting, pressure is kept as a) 2 to 4 kg./sqcm.* b) 3 to 6 kg./sqcm. c) 3 to 10 kg./sqcm. d) 3.5 to 7 kg./sqcm.
Last Answer : a) 2 to 4 kg./sqcm.*
Description : Torch is kept at height from top surface of rail head? (i) 30 to 55 mm (ii) 35 to 40 mm (iii) 40 to 45 mm
Last Answer : (iii) 40 to 45 mm
Description : The concrete under water minimum grade of cement recommended by IS code a) M 10 b) M 15 c) M 20* d) M 25
Last Answer : c) M 20*
Description : Thickness of Lining/Charge is kept? (i) 20 mm. (ii) 25 mm* (iii) 30 mm (iv) As decided by the site supervisor
Last Answer : (ii) 25 mm*
Description : For new lines, width of formation in bank for N.G single line is (a) 3.35 m (b) 3.70 m* (c ) 5.25 m (e) 5.85 m
Last Answer : b) 3.70 m*
Description : For new lines, width of formation in cutting for N.G. single line is (a) 3.35 m* (b) 3.70 m (c) 5.25 m (d) 5.85 m
Last Answer : a) 3.35 m*
Description : In cement pressure grouting G.I pipes of diameter …… and ……length, should be fixed in drilled holes a) 12 to 20 mm, 200 mm* b) 12 to 20 mm, 300 mm c) 12 to 25 mm, 500 mm d) 20 to 25 mm, 300 mm
Last Answer : a) 12 to 20 mm, 200 mm*
Description : After AT Welding First train is to be passed after ? (i) 20 Minutes from pouring of weld metal. (ii) 35 Minutes from pouring of weld metal. (iii) 30 Minutes from pouring of weld metal.* (iv) 25 Minutes from pouring of weld metal.
Last Answer : (iii) 30 Minutes from pouring of weld metal.*
Description : The approximate ratio between the strength of cement concrete at seven days and 28 days is a) 3/ 4 b) 2/3* c) 1/2 d) 1/3
Last Answer : b) 2/3*
Description : Pressure of compressed air is kept during preheating by CAPS? (i) 1 to 2 kg/cm2 (ii) .1 to .2 kg/cm2 (iii) 2 to 3 kg/cm2 (iv) 0.2 to 0.3 kg/cm2*
Last Answer : (iv) 0.2 to 0.3 kg/cm2*
Description : Explain in brief Guniting and Grouting.
Last Answer : Guniting-Process of applying cement and sand (1:3) mixture under pressure (20 -30N/cm2)on concrete surface in order to repair concrete work. It is a process of repairing concrete work or ... masonry. The process of placing a grout material into cavities of concrete or masonry is called grouting.
Description : The ratio of maximum cant e and gauge G in India is about a)1 / 100 b) 1 / 50 c)1 /10* d) 1 / 25
Last Answer : c)1 /10*
Description : In Epoxy pressure grouting, pressure is kept as a) 2 to 4 kg./sqcm. b) 3 to 6 kg./sqcm. c) 3 to 10 kg./sqcm. d) 3.5 to 7 kg./sqcm.*
Last Answer : d) 3.5 to 7 kg./sqcm.*
Description : The setting and hardening of cement after addition of water is due to a) Binding action of water b) Evaporation of water c) Hydration and hydrolysis of some constituent compounds of cement* d) Additional hardening compounds added to cement
Last Answer : c) Hydration and hydrolysis of some constituent compounds of cement*
Description : Size of cubicle of a booking office is kept as (a) 1.20 x 1.50 m (b) 1.50 x 1.20 m (c) 1.50 x 1.80 m (d) 1.80 x 1.50 m*
Last Answer : (d) 1.80 x 1.50 m*
Description : Height of crucible is kept from top surface of mould? (i) 30 mm (ii) 40 mm (iii) 50 mm* (iv) 60 mm
Last Answer : (iii) 50 mm*
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 : To provide inverted filter to improve the bearing capacity of soil the liquid limit of blanketing material should not be greater than a) 5 b) 20 c) 27 d) 35
Last Answer : d) 35
Description : A slow setting cement will have higher percentage of a) tricalcium aluminate b) tricalcium silicate c) Gypsum d) Dicalcium silicate*
Last Answer : C2s
Description : The constituent of cement which act as Binders are a) Sand and silica b) Silica and carbon c) tricalcium silicate dicalcium silicate and carbon d) tricalcium aluminate,dicalcium silicate and tricalcium silicate *
Last Answer : d) tricalcium aluminate,dicalcium silicate and tricalcium silicate *
Description : Soundness test of cement is done to determine its a) Durability in seawater b) Free lime content* c) Iron oxide content d) Alumina content
Last Answer : b) Free lime content*
Description : Le Chatelier apparatus is used to determine which of the following properties for cement A) Soundness* b) Initial setting time c) Compressive strength d) Tensile strength
Last Answer : A) Soundness*
Description : Which type of following cement is used for mass concrete work a) High Alumina cement b) Quick setting cement c) Rapid hardening cement d) Low heat cement*
Last Answer : d) Low heat cement*
Description : fter storage, strength of cement a) Decreases* b) Increases c) Remains same d) Depends upon the type of cement
Last Answer : a) Decreases*
Description : The main ingredients of Portland cement are a) Lime and silica* b) Lime and Alumina c) Alumina magnesia d) Silica and Alumina
Last Answer : a) Lime and silica*
Description : An artificial stone made from pieces of white marble, white cement and other coloring agents, generally used for floor and facing walls is known as a) Topaz b) Marble c) Terrazzo* d) Gneiss
Last Answer : c) Terrazzo*
Description : Standard bag of cement in ……… kg a) 52 kg b) 30.5kg c) 10.7kg d) 50 kg*
Last Answer : d) 50 kg*
Description : Which cement should not be used for bridge slabs ro RCC frames a) OPC b) Portland Pozzolana cement * c) Portland furnace slag cement d) Rapid hardening cement
Last Answer : b) Portland Pozzolana cement *
Description : CC Crib stands for a) Cement concrete b) Criss crossing c) Christ church* d) None of the above
Last Answer : c) Christ church*
Description : In cement pressure grouting holes should be drilled at spacing in both direction at a) 150 – 500 mm b) 450 mm c) 500 – 750 mm* d) 1000 mm
Last Answer : c) 500 – 750 mm*
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 : Repairing by cement pressure grouting can be adopted in case of a) Honey comb concrete b) Hollow masonry, Dormant cracks c) Deep leached mortar joints d) all the above*
Last Answer : d) all the above*
Description : UCC is abbreviated for (a) Uncontrolled cement concrete (b) Unified Control Command (c) Unified Command Centre* (d) none of them
Last Answer : (c) Unified Command Centre*
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 : To provide inverted filter to improve the hearing capacity of soil the plasticity index of blanketing material should not be greater than a) 15* b) 20 c) 27 d) 35
Last Answer : a) 15*
Description : Speed restriction required for using CC cribs as temporary arrangement is a) 20 kmph* b) 40 kmph c) 35 kmph d) 30 kmph
Last Answer : a) 20 kmph*
Description : Minimum depth of space for wheel flange form rail level in B.G. is …… mm (A) 35 (B) 38* (C) 42 (D) 45
Last Answer : (B) 38*
Description : The floor slab of a building is supported on reinforced cement floor beams. The ratio of the end and intermediate spans is kept (A) 0.7 (B) 0.8 (C) 0.9 (D) 0.6
Last Answer : Answer: Option C
Description : The floor slab of a building is supported on reinforced cement floor beams. The ratio of the end and intermediate span is kept. (a) 0.7 (b) 0.8 (c) 0.9 (d) 0.6
Last Answer : (c) 0.9
Description : In case of honey –comb structure, the water-cement ratio is (a) More than 0.35 (b) Less than 0.35 (c) More than 0.45 (d) Less than 0.45
Last Answer : (b) Less than 0.35
Description : The minimum water-cement ratio is (a) 0.35 (b) 0.45 (c) 0.50 (d) None of these
Last Answer : (a) 0.35
Description : The frequency of a wave travelling at a speed of 500 ms-1 is 25 Hz. Its time period will be ______. (i) 20 s (ii) 0.05 s (iii) 25 s (iv) 0.04 s
Last Answer : (iv) 0.04 s
Description : If 1500 g of water is required to have a cement paste 1875 g of normal consistency, the percentage of water is, (A) 20 % (B) 25 % (C) 30 % (D) 35 %
Last Answer : (B) 25 %
Description : The percentage of water for making a cement paste of normal consistency varies from (a) 15 to 25% (b) 25 to 35% (c) 35 to 50% (d) 50 to 60%
Last Answer : (b) 25 to 35%
Description : Peak hour demand of water is taken as ---------- times the average daily demand a)1.5 b)1.9 c)2.25* d)2.75
Last Answer : c)2.25*
Description : Demand of water for passengers on railway station is a)10 litres per passenger b)15 litres per passenger c) 20 litres for passenger d) 25 litres per passenger*
Last Answer : d) 25 litres per passenger*
Description : For new lines, width of formation in bank for M.G. single line is (a) 5.25 m (b) 5.85 m* (c ) 6.25 m (e) 6.85 m
Last Answer : (b) 5.85 m*
Description : For new lines, width of formation in cutting for M.G. single line is (a) 5.25 m* (b) 5.85 m (c) 6.25 m (d) 6.85 m
Last Answer : (a) 5.25 m*