Description : Sea sand used in structures causes (A) Dampness (B) Efflorescence (C) Disintegration (D) All of these
Last Answer : Answer: Option D
Description : Pick up the correct statements from the following: (A) Cracks appear on the plastered surface in the form of hair cracks (B) In brick work, the efflorescence is removed by applying a solution ... Excessive thermal variations in the backing or plaster causes the plaster to fall (D) All the above
Description : Pick up the most favourable condition for the rapid growth of fungus for dry rot from the following: (A) Absence of sun light (B) Dampness (C) Presence of sap (D) All the above
Description : Which of the following salts do not have the water of crystalisation? (i) Bleaching Powder (ii) Plaster of Paris (iii) washing soda (iv) Baking soda (a) (ii) and (iv) (b) (i) and (iii) (c) (ii) and (iii) (d) (i) and (iv)
Last Answer : (d) (i) and (iv)
Description : What is the name and chemical formula of the main product formed by heating baking soda. (a) sodium carbonate,Na 2 CO 3 (b) Bleaching powder ,CaOCl 2 (c) sodium chloride,Na Cl (d)Plaster of paris ,CaSO 4 .I/2H 2 O
Last Answer : (a) sodium carbonate,Na 2 CO 3
Description : CaCl(OCl) is the chemical formula of (A) Hypo (B) Bleaching powder (C) Plaster of Paris (D) Aqua regia
Last Answer : (B) Bleaching powder
Description : Which of the following is characterized by excessive dampness with a thick growth forest and a variety of wild life? (a) Bhabar (b) Bhangar (c) Tarai (d) Khadar
Last Answer : Ans: (c)
Description : Refractory bricks resist (A) High temperature (B) Chemical action (C) Dampness (D) All the above
Last Answer : Answer: Option A
Description : Which of the following metal sheets is most effective in preventing dampness? (A) Copper sheets (B) Lead sheets (C) Aluminium sheets (D) All the above
Description : Cavity wall is generally provided for (A) Heat insulation (B) Sound insulation (C) Prevention of dampness (D) All the above
Description : Efflorescence in cement is caused due to an excess of (A) Alumina (B) Iron oxide (C) Silica (D) Alkalis
Description : When a brick is immersed in water for 24 hours and then dried, if (A) No grey or white deposits appear on the surface, the brick is free from soluble salts (B) 10 percent surface is ... percent surface is covered with grey or white deposits, the brick has serious efflorescence (D) All the above
Description : Efflorescence is cement is caused due to the excess of (a) Lime (b) Silica (c) Alkalies (d) Iron oxide
Last Answer : (c) Alkalies
Description : Efflorescence in cement is caused due to an excess of [ A ] Alkalies [ B ] Silica [ C ] Iron oxide [ D ] Alumina
Last Answer : [ A ] Alkalies
Description : To control the growth of algae in reservoirs, the compound which is used, is (A) Bleaching powder (B) Copper sulphate (C) Lime solution (D) Alum solution
Last Answer : (B) Copper sulphate
Description : The advantage of a concrete pile over a timber pile, is (A) No decay due to termites (B) No restriction on length (C) Higher bearing capacity (D) All the above
Description : If the Federal Government picks up the tab for fixing Flint Michigan's contaminated water/crumbling infrastructure crisis, where does the Federal Government's role end?
Last Answer : Depends on who can spend the money better. You or the government. Clean water is a basic goal that gives the most bang for the buck.
Description : Are our societal agencies collapsing in step with our crumbling infrastructure?
Last Answer : Yes they are.
Description : When did the citizens of the Roman Empire realise that it was crumbling?
Last Answer : answer:That's a good question. I think the fact that Marcus Aruelius tried to appease the invaders by allowing them to settle inside the state is an indication that he saw that his empire was ... live in Rome, so he let them, hoping that would satisfy them. Appeasement of enemies seldom works.
Description : How can I rebind an old, crumbling book without destroying the pages and also without making it too tight to lie flat?
Last Answer : Umm I'm not sure how to do that to the book itself and hope someone else can make a good suggestion for that- but what I'm wondering is if one option is keeping that book as it is- ... and present, but have the pages carefully copied then bound into a plastic ring spine music book of your own?
Description : Has America hit its "highpoint" and now crumbling?
Last Answer : answer:Cheer up - tomorrow things will look better. Yes, America has had some problems - as has much of the rest of the world. America is taking longer to recover, but it is happening. It is ... dominant nor a financially dominant country but it is a great place to live. America will be the same.
Description : What would cause my cinderblock garden wall to have white areas that are crumbling out?
Last Answer : There are A number of things that might cause this type of problem with your cinderblock. Often when it is poorly manufactured, it tends to wear and crumble more quickly and easily. Some elements of ... placed on the blocks for a long period of time, heavy amounts of water and physical impact.
Description : __________ is the property of a soil to undergo large deformations when stressed, without cracking or crumbling due to the lubricating effect of the water films between adjacent particles. a. Bending b. Malleability c. Ductility d. Plasticity
Last Answer : d. Plasticity
Description : Suggest one type of materials for water proofing for the following situations. i. Rising dampness in building ii. Leakages in dam iii. Concrete continuously in wet or damp condition iv. Leakages in lavatory ,bathroom and kitchen floor v. Cracks on plastered surface vi. Cracks on roof surface
Last Answer : i. Flexible materials like butyl rubber, hot bitumen (asphalt), plastic sheets, bituminous felts, sheets of lead. ii. Liquid applied cementitious membranes iii. Liquid applied cementitious membranes ... v. Liquid applied cementitious membranes. vi. Brick bat coba, liquid applied bituminous membrane.
Description : The property of a substance to absorb moisture from the air on exposure is called------? A. osmosis B. deliquescence (Answer) C. efflorescence D. desiccation
Last Answer : B. deliquescence (Answer)
Description : Hydraulic lime is not used in plastering because it may result in a) Blistering* b) Efflorescence c) Flaking d) Fluorescence
Last Answer : a) Blistering*
Description : The loss of water of crystallization from a hydrat when exposed to air is termed: w) efflorescence (pron: eh-floor-es-ence) x) deliquescence (pron: del-i-kwes-ence) y) quiescence (pron: kwi-es-ence) z) anhydrogenation
Last Answer : ANSWER: W -- EFFLORESCENCE
Description : The process by which a substance absorbs moisture upon exposure to the atmosphere is called: w) efflorescence x) deliquescence y) dehydrogenation z) desalination
Last Answer : ANSWER: X -- DELIQUESCENCE
Description : Plaster of Paris is obtained by calcining (A) Bauxite (B) Gypsum (C) Lime stone (D) None of these
Last Answer : Answer: Option B
Description : The local swelling of a finished plaster, is termed (A) Cracking (B) Dubbing (C) Blistering (D) Hacking
Last Answer : Answer: Option C
Description : Pick up the correct statement from the following: (A) The first coat of stucco plaster is called scratch coat (B) The second coat of stucco plaster is called brown coat (C) The third coat of stucco plaster is called white coat (D) All the above
Description : Pick up the correct statement from the following: (A) Lime mortar with cement in the ratio of in 10 is cheaper and better for outside plaster (B) For very cold or very hot climate, a compact and closed ... (C) On the sea coast, an exposed and open house is generally preferred (D) All the above
Description : Ground glass (A) Is made by grinding its one side (B) Is made by melting powdered glass paints surface (C) Is used for getting light without transparency (D) All the above
Description : Bitumen paints offer (A) Pleasing surface (B) Hard surface (C) Smooth surface (D) Protective surface
Description : The material generally not used as extender in paints, is (A) Powdered silica (B) Gypsum (C) Talc (D) Zinc white
Description : Duco paints are (A) Plastic paints (B) Cellulose paints (C) Emulsion paints (D) Oil paints
Description : Cement paints usually (A) Contain hydrated lime (B) Contain 5% to 10% colour pigments (C) Contain 5% sodium chloride (D) All the above
Description : In paints, the pigment is responsible for (A) Durability (B) Colour (C) Smoothness (D) Glassy face
Description : The commonly used drying oil for oil paints, is (A) Olive oil (B) Linseed oil (C) Kerosene oil (D) Acetate of lead
Description : The most fire resistant paints are: (A) Enamel paints (B) Aluminium paints (C) Asbestos paints (D) Cement paints
Description : The commonly used colour pigment in paints, is (A) Ambers (B) Carbon black (C) Iron oxide (D) All the above
Description : Most commonly used solvent in oil paints, is (A) Petroleum (B) Spirit (C) Coal tar (D) Turpentine
Description : Linseed oil is used in paints as (A) Thinner (B) Vehicle (C) Base (D) Drier
Description : Snowcrete is one of the patent forms of (A) Distempers (B) Water proof cement paints (C) Enamel paints (D) Cellulose pain
Description : Stucco paints are suitable for (A) Stone masonry (B) Brick walls (C) Both (A) and (B) (D) Neither (A) nor (B)
Description : Turpentine oil is used in paints as (A) Thinner (B) Vehicle (C) Base (D) Drier
Description : Commonly used thinner in (A) Lacquer paints, is alcohol (B) Cellulose paints is ethyl acetate (C) Oil paints, is naphtha (D) All the above
Description : Duco is one of the patent forms of (A) Emulsion paints (B) Plastic paints (C) Bituminous paints (D) Cellulose paints
Description : Lacquer paints (A) Are generally applied on structural steel (B) Are less durable as compared to enamel paints (C) Consist of resin and nitro-cellulose (D) All the above
Description : Paints with white lead base are suitable for painting of (A) Wood work (B) Iron work (C) Both wood work and iron work (D) None of the above