ETC Unit 2 QB PDF

GOVERNMENT POLYTECHNIC GONDIA Diploma in Civil Engineering Sub Emerging trends in Civil Engineering Unit: II Semester : Sixth...

GOVERNMENT POLYTECHNIC GONDIA Diploma in Civil Engineering Sub Emerging trends in Civil Engineering Unit: II Semester : Sixth Sr No Questions A B C D 1 Thomas Edison invented carbon fiber in 1958 1879 1859 1949 Reverse Vaccum cleaner Air suction air filtration 2 Pollution Absorbing Bricks work on the basic principle of Osmosis None of Grasshopper Pixelstone Both A & B 3 3D printed bricks can be designed using following software above waste steel waste rocky waste plastic 4 Ferrock is created from............. dust timber material Superplasticise Retarder Accelerator Water reducer 5 MasterGlenium is a new generation ------------------- for concrete r 4.5 to 6.5 0.5 to 5 0.2 to 0.5micron 10 to 20 micron 6 Carbon fibre has diameter between ………… micron micron India Africa Denmark London 7 Green concrete was first invented in………………in year 1998. Marble Amazonite Granite Agrellite 8 Natural crystals which can be used to apply piezoelectricity effect ………………is responsible for around 80 to 95 %of light None of Lignin Chlorophyll Tannins 9 absorption in wood. above Autoclaved Pollution None of ………..is an eco-friendly and certified green building material Ferrock Aerated absorbing Bricks above 10 and 3 times lighter when compared to red bricks Concrete 11 AAC was developed in ……... by a Swedish architect 1924 1934 1960 1995 Pollution absorbing Bricks filters ……. of particles spanning up to 2.5 microns or smaller in diameter, which is equal to smoke or 30% and 20% and 80% 30% and 100% 20% and 100% haze, and it filters ……….. of coarse particles with diameter 80% 12 more than and equal to 10 microns. Breathe bricks. Hollow bricks Porous bricks Filter Bricks 13 Pollution Absorbing Bricks are also called as When the raw material of AAC Block reacts with ………., the air Aluminum Magnesium bubble introduced due to the reaction between calcium hydroxide, Gypsum powder Lime Powder powder Powder 14 aluminum and water, and hydrogen gas is released. They are known to seal an opening or a surface in order Caulks and Waterproofing Flooring None of 15 to avoid leakage of any gas or liquid sealants Chemicals Compounds above Fire proof doors are built to withstand ………..minutes of fire 30-120 50-100 100-150 30-50 16 protection None of ………. discovered the tensile strength of carbon fiber and was the Thomas Edison Isac Newton Roger Bacon above 17 first to create the modern fiber with petroleumbas ed polymer. Integrity, Radiation Toughness, Integrity, Radiation controll, thermal durability & Durability & Controll and coefficient & strength toughness insulation insulation 18 There are three available classifications for fire-resistant glass The geo synthetics generally used for drainage purpose are None of Geotextile Geo composites Both a and b 19 ……………………. above Porous Pavement structure consist of …………. subgrade to An un A Compacted flexible rigid 20 maximize the infiltration rate of the soil compacted potassium sodium chloride calcium chloride All of above 21 Snow melting agents includes chloride ………… is essentially impermeable polymeric sheets used as Geotextile Geonets Geomembranes Geogrids 22 barriers for liquid or solid waste containment Non-geothermal Geothermal heat systems Geothermal fluid All of above heating systems 23 Thermal snow melting techniques includes 24 The principle of piezoelectricity lies behind the ……… Vibration Crystals UV radiation Pressure  GOVERNMENT POLYTECHNIC GONDIA Diploma in Civil Engineering Sub Emerging trends in Civil Engineering Unit: II Semester : Sixth Sr No Questions A B C D Concrete Road take a lot of construction time but its design life is 50 30 20 10 25........years and the maintenance requirement is also very less. Economy and Durability & Quality & Speed ease of All of above long life span 26 ………….can be achieved using Prestressed Precast Concrete Pavement (PPCP) Technology maintenance 27 A green synthetic lightweight aggregate contains plastic waste Paper waste metal waste All of above Polycarboxylic None of Masterglenium Both A & B 28 Self Compacting Nano-concrete is Concrete defined as(SCC) is themade a concrete best example for cement with Portland Ether above 29 particles that are less than …….. Nano-meters as the cementing 100 200 500 1000 Low Density Lightweight Cellular None of Cellular Both A & B Concrete above Concrete (LCC) 30 Foam concrete, also known as (LDCC) 31 Hydrophobic concrete is Developed in Australia Asia Europe America 32 Bamboo is ……….. times stronger than steel by weight. seven six five four ……..has proven very effective for the self-cleaning of concrete and provides the additional benefit of helping to clean the nano-SiO2 nano-Al2O3 nano-Fe2O3 nano-TiO2 33 environment The ultimate goal when forming a hydrophobic material is to None of Weight Polarity Density 34 reduce the ……….. Of the molecules above 35 There are around ……….. species of bamboo. 1000 1200 1300 1500