0% 0 Materials and Construction Quiz 3 1 / 50 Cast iron has______? High malleability High ductility Its elastic limit very close to ultimate breaking strength Very high tensile strength 2 / 50 Creep is not exhibited at low temperature by _______? Rubber Acrylics Lead Plastics 3 / 50 Caustic soda is produced in a mercury cell having anode and cathode made respectively of moving mercury and__________? Graphite and moving mercury Moving mercury and graphite Moving mercury and carbon Moving mercury and crimped steel wire 4 / 50 Chrome vanadium steels usually contain 0.8 to 1.1% Cr, 0.25 to 0.35% C and < 0.25% V. It is ________? Having poor fatigue resistance Used for making axle & shafts of aeroplanes, automobiles and locomotives Having poor toughness Not helpful in producing cleaner steel due to oxidising action of vanadium 5 / 50 Dead mild steel, which contains 0.10 to 0.15 percent carbon is used for making_________? Shafts Flanges Gears Shear blades 6 / 50 Clock pendulums are usually made of ________ steel? Heat resisting Stainless High speed None of these 7 / 50 Cementite is_________? All A., B. and C. Characterised by an orthorhombic crystal structure Fe3C chemically A compound of carbon and iron 8 / 50 Constantan used in thermocouples is an alloy of_____? Copper & aluminium Lead & tin Iron & copper None of these 9 / 50 Combination of metals and ceramics are called_____? Non-crystalline ceramics Cermets Metalloy Pellets 10 / 50 Diamagnetic materials are magnetised_________? Strongly Only slightly In a direction opposite to that of the applied field With eddy currents only 11 / 50 Cast iron is a _______ material? Ductile Malleable Tough Brittle 12 / 50 Corrosion resisting properties of cast iron are significantly improved by the addition of 12 ? 15% of_____? Tungsten All A., B. & C. Silicon Vanadium 13 / 50 Cermets are used for making_____? Cutting tools Both A. & B. Abrasives Neither A. nor B 14 / 50 Centrifugal pump made of pyrex or glass can?t be used to pump_____? Milk and fruit juices Alkaline solutions Brine Dilute H2SO4 at room temperature 15 / 50 Ceramic materials fabrication cannot be done by___________? Slip casting Plastic pressing Extrusion Welding 16 / 50 Cast iron has very high_____? Resistance to brittleness Compressive strength Ductility Shock resistance 17 / 50 Caustic soda can be stored in ______ drums? Brass Steel Gun metal Cast iron 18 / 50 Caustic soda is transported in ______ lined containers ? Glass Either B. or C. Nickel Neoprene 19 / 50 Cold worked steel parts are normally subjected to__________? Hardening Annealing Shot peening Normalising 20 / 50 Cast iron compared to steel is better in___________? Ductility Strength Malleability Fluidity & castability 21 / 50 Chlorination of benzene is done to produce benzene hexachloride (a pesticide) in a photochemical reactor lined with_______? Lead or glass Fireclay bricks Karbate PVC 22 / 50 Copper is dissolved from its ore by H2SO4 in a percolation tank made of__________? Stainless steel Wood Reinforced concrete lined with lead High silicon iron (14% Si) 23 / 50 Cold work tool steel should have__________? High toughness All A., B. & C. Poor hardenability High wear resistance 24 / 50 Common house hold glass (i.e., soda-lime glass) is a/an ______ material? Amorphous None of these Fully crystalline Partly crystalline 25 / 50 Corrosion involves exchange of electrons in _____ corrosion? Both A. & B. Neither A. nor B. Electrochemical Chemical 26 / 50 Cast irons are generally specified by their__________? Hardness Tensile strength Manufacturing process Carbon content 27 / 50 Cast iron is having very high _____? All A., B. and C. Ductility Tensile strength Proximity between its elastic limit and ultimate breaking strength 28 / 50 Chilled iron castings are___________? None of these Highly wear resistant Easily machinable Soft on surface 29 / 50 Constantan is an alloy of______? Cu (55%) & Sn (45%) Pt (95%) & Rh (10%) Cu (55%) & Ni (45%) Fe (80%) & Ni (20%) 30 / 50 Cast iron is___________? Manufactured in cupola and is brittle Used for making shock resisting parts Having compressive strength more than its tensile strength All A., B. & C. 31 / 50 Cast iron vessels are not suitable for the storage of__________? Freon H2SO4 (fuming) Wet SO2 H2SO4 (95%) at room temperature 32 / 50 Cast iron detachable joint is used in __________ pipes. Cast iron Reinforced cement concrete Asbestos cement Steel 33 / 50 Carbon tetrachloride can be stored in a storage vessel made of_________? Stainless steel Tin All A., B. and C. High silicon iron (14% Si) 34 / 50 Condenser tubes are not made of__________? Cartridge brass Wood metal Muntz brass Aluminium brass alloy 35 / 50 Coke oven regenerators are made of _______ bricks? Silica Low thermal conductivity Fire clay High electrical conductivity 36 / 50 Copper has very low_________? Malleability Ductility Thermal & electrical conductivity Tensile strength 37 / 50 Concrete tank can be used to store_________? Sulphuric acid Alum Ferrous sulphate Saturated brine 38 / 50 Cermets are _______ materials? Reinforced Abrasive Refractory Fully metallic 39 / 50 Ceramic materials___________? Are exemplified by clay and mica Never exhibit polymorphism Are poor electrical conductors due to lack of free electrons All A., B. and C. 40 / 50 Containers made of high silicon cast iron (14% Si) are not suitable for the storage of ______? Phosphoric acid (95%) & sulphuric acid (95%) Benzoic & boric acids Hydrochloric acid (concentrated) Acetic acid 41 / 50 Chromel (Nichrome) is an alloy of_______? Molybdenum and nickel Chromium and aluminium Nickel and chromium Chromium and molybdenum 42 / 50 DDT is shipped in__________? Stainless steel containers Paper bags Either B. or C. Fibre drums 43 / 50 Cast iron and steel pipes are produced by _____ casting? Investment Die Slush True centrifugal 44 / 50 Concentrated HCl at 30?C can be stored in a vessel made of __________? Cast iron and aluminium Stainless steel and high silicon cast iron PTFE and porcelain None of these 45 / 50 Ceramic recuperators are generally made of__________? Fireclay bricks Silicon carbide Calcium carbide High alumina bricks 46 / 50 Compressive strength of wood is usually more along the grains. The tenile strength of wood as compared to that of steel is about________? One twelfth Half One third One fifth 47 / 50 Constituents of stellite are___________? Nickel, cobalt and vanadium Zinc, aluminium and nickel Zinc, copper and nickel Cobalt, chromium and tungsten 48 / 50 Corrosion resistance of steel is increased by the addition of__________? Lead and vanadium Phosphorous and tungsten Nickel and chromium Molybdenum and tungsten 49 / 50 Coke oven walls are lined with ______ bricks? Silica Fire clay Tar-dolomite Low thermal conductivity 50 / 50 Ceramic materials are______? Always bad heat conductors Always amorphous in nature Stronger in compression than in tension Organic in nature Provide Your Information Your score is The average score is 0% LinkedIn Facebook Twitter 0% Restart quiz Send feedback Share on facebook Facebook Share on twitter Twitter Share on whatsapp WhatsApp PrevMaterials and Construction Quiz 2 Materials and Construction Quiz 4Next
