Description : The malleability of a material is the property by virtue of which it can be rolled or hammered into thin sheets. Which of the following materials has the maximum malleability? (A) Lead (B) Copper (C) Aluminium (D) Wrought iron
Last Answer : (A) Lead
Last Answer : Option A
Description : The metal used for making air crafts and rockets is – (1) Lead (2) Aluminium (3) Nickel (4) Copper
Last Answer : (3) Nickel Explanation: Nickel-based super alloys are an unusual class of metallic materials with an exceptional combination of high temperature strength, toughness, and resistance to degradation in ... These materials are widely used in aircraft and power-generation turbines, rocket engines, etc.
Description : The metal whose electrical conductivity is more, is – (1) copper (2) aluminium (3) silver (4) lead
Last Answer : (3) silver Explanation: Copper ; 9% less conductive than silver: aluminium is 1 0% less conductive than copper; while steel is the least conductive among the given options. The most electrically conductive metal is silver.
Description : Babbitt metal used for bearings is a _________base alloy. (A) Tin (B) Lead (C) Aluminium (D) Copper
Last Answer : (A) Tin
Description : Babbitt metal (used for making bearings) comprises of (A) Mainly tin (85%) and lead (B) Saw dust and iron dust mixture (C) Zinc and aluminium (D) Copper and aluminium
Last Answer : (A) Mainly tin (85%) and lead
Description : The metal used for making aircrafts and rockets is (1) Lead (2) Aluminium (3) Nickel (4) Copper
Last Answer : Nickel
Description : The metal whose electrical conductivity is more, is (1) copper (2) aluminium (3) silver (4) lead
Last Answer : silver
Description : Refractory bricks resist (A) High temperature (B) Chemical action (C) Dampness (D) All the above
Last Answer : Answer: Option A
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
Last Answer : Answer: Option D
Description : Sea sand used in structures causes (A) Dampness (B) Efflorescence (C) Disintegration (D) All of these
Description : Dampness causes (A) Efflorescence (B) Bleaching of paints (C) Crumbling of plaster (D) Growth of termites
Description : Cavity wall is generally provided for (A) Heat insulation (B) Sound insulation (C) Prevention of dampness (D) All the above
Description : (3) preventing rapid setting of cement Explanation: Portland cement clinker is a hydraulic material which shall consist of at least two-thirds by mass of calcium silicates, the remainder consisting of ... mixed with water by way of a complex series of chemical reactions still only partly understood.
Last Answer : Milk is a colloidal system in which: (1) Water is dispersed in fat (2) Fat is dispersed in water (3) Fat and water are dispersed in each other (4) Fat is dissolved
Description : A fuse wire is made of: (1) an alloy of tin and copper (2) an alloy of tin and lead (3) an alloy of tin and aluminium (4) an alloy of nickel and chromium
Last Answer : (2) an alloy of tin and lead Explanation: Electric fuse wire is an alloy made of tin (63 % lead 37 %. The cross sectional area determines the melting point at a certain current. Alloys (e.g. ... resulting combination of good conductivity (due to the tin) with a low melting point due to the lead).
Description : Constantan used in thermocouples is an alloy of (A) Iron & copper (B) Copper & aluminium (C) Lead & tin (D) None of these
Last Answer : (D) None of these
Description : Out of the following, the most malleable material is (A) Copper (B) Aluminium (C) Wrought iron (D) Lead
Last Answer : (D) Lead
Description : Which of the following metals is the most prone to work hardening? (A) Brass (B) Aluminium (C) Copper (D) Lead
Description : Matte smelting is used in the extraction of (A) Lead (B) Zinc (C) Aluminium (D) Copper
Last Answer : Option D
Description : The bearing material that is most susceptible to corrosion is : Q. Babbit R. Copper-lead S. Aluminium T. Aluminium-babbit
Last Answer : Q. Babbit
Last Answer : an alloy of tin and lead
Description : Expanded metal is (A) Manufactured from steel sheets (B) Used for reinforced concrete in road pavements (C) Measured in term of SWM (short way mesh) and LWM (long way mesh) (D) All the above
Description : Which of the following is the most abundant metal on Earth's crust? (1) Magnesium (2) Iron (3) Copper (4) Aluminium
Last Answer : (4) Aluminium Explanation: Aluminum is the most abundant metal in the Earth's crust, and the third most abundant element therein, after oxygen and silicon. It makes up about 8% by weight of the Earth's solid ... of Earth's volume Oxygen is 46.6%, Silicon 27.77%, Aluminum is 8.09% and iron is 5%.
Description : The most abundant metal in the Earth’s crust is - (1) zinc (2) copper (3) aluminium (4) iron
Last Answer : (3) aluminium Explanation: The most abundant metal on Earth is aluminum. Aluminum is the third most abundant element in the Earth's crust, and makes up 8 percent of it by parts per million. The most abundant element in the Earth's crust is Oxygen followed by Silicon. Both of these are nonmetals.
Description : A metal is exposed to the atmosphere for some time. It becomes coated with green carbonate. The metal must be – (1) silver (2) copper (3) aluminium (4) zinc
Last Answer : (2) copper Explanation: Copper forms a rich variety of compounds with oxidation states +1 and +2, which are often called cuprous and cupric, respectively. It does not react with water, but it ... contrast to the oxidation of iron by wet air, this oxide layer stops the further, bulk corrosion.
Description : Monel metal is an alloy of (A) Molybdenum and nickel (B) Nickel and copper (C) Molybdenum and aluminium (D) Molybdenum and zinc
Last Answer : (B) Nickel and copper
Description : Which metal is added to steel to make it stainless steel? A. Chromium (Answer) B. Aluminium C. Carbon D. Copper
Last Answer : A. Chromium (Answer)
Description : The most abundant metal present in the earth's crust is; (A) Iron (B) Copper (C) Titanium (D) Aluminium
Last Answer : (D) Aluminium
Description : Which of the following metal is used in electroplating to make object appear shinning? a) Iron b)copper c)chromium d)aluminium
Last Answer : c)chromium
Description : Which metal among the following melts below 30^0 C. a) copper b)aluminium c)gold d)caesium
Last Answer : d)caesium
Description : Rohan had learnt that non-metals on beating with hammer are generally broken into pieces. Which of the following is a non-metal? a) iron nail b)aluminium wire c)copper wire d)piece of coal
Last Answer : d)piece of coal
Description : _______ being a very light metal is used for making aircraft bodies . a) aluminium b)copper c)zinc d)iron
Last Answer : a) aluminium
Description : The most abundant metal in the Earth’s crust is (1) zinc (2) copper (3) aluminium (4) iron
Last Answer : aluminium
Description : Which metal does not undergo corrosion due to the formation of oxide layer? (1) Copper (2) Iron (3) Aluminium (4) Zinc
Last Answer : Aluminium
Description : A metal is exposed to the atmosphere for sometime. It becomes coated with green carbonate. The metal must be (1) silver (2) copper (3) aluminium(4) zinc
Last Answer : copper
Description : The metal used to make lightning conductors is (1) Iron (2) Aluminium (3) Copper (4) Zinc
Last Answer : Copper
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 : 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 : Which of the following cannot be beaten into Sheets? (1) Gold (2) Silver (3) Potassium (4) Aluminium
Last Answer : (3) Potassium Explanation: Substances that can be beaten into thin sheets are called malleable. Most metals are malleable.
Description : Mercury is transported in metal containers made of (A) Aluminium (B) Iron (C) Lead (D) Nicke
Last Answer : (B) Iron
Description : Which of the following metals in not used for coating of the base metal to guard it against corrosion? (A) Lead (B) Cadmium (C) Magnesium (D) Aluminium
Last Answer : (C) Magnesium
Description : Mercury is transported in metal containers made of (A) Aluminium (B) Iron (C) Lead (D) Nickel
Description : Single-word or general keywords are ______ A. too broad and can lead to clicks from people who don't know what you're offering B. excellent for your return on investment C. useful in generating highly targeted traffic for your site D. good for preventing irrelevant traffic
Last Answer : A. too broad and can lead to clicks from people who don't know what you're offering
Description : How effective would cutting out a dog's vocal chords be at preventing it from barking?
Last Answer : answer:Dumb question from a smart person! “How effective would a lobotomy be in preventing @ragingloli from thinking right?” ♥♥
Description : How effective would mandatory vasectomies at birth be at preventing teen pregnancies?
Last Answer : Great idea! My company can supply the inline valve to turn it on and off. It would be self powered and RFID enabled, and could only turned on after supplying proof of support documentation to ... impoverished regions that rely upon foreign aide to survive. It is time to let nature take its course.
Description : Are antibiotics effective in preventing and treating the new coronavirus? -Biology
Last Answer : No, antibiotics do not work against viruses, only bacteria. The new coronavirus (2019-nCoV) is a virus and, therefore, antibiotics should not be used as a means of prevention or ... are hospitalized for the 2019-nCoV, you may receive antibiotics because bacterial co-infection is possible.
Description : What form of birth control is 100 percent effective at preventing pregnancy?
Last Answer : The only 100% effective way of preventing pregnancy is to avoidhaving sexual intercourse.No alternate form of Birth Control is completely reliable.
Description : In general is NOT effective in preventing abuse A. trusting the abuser to stop when asked B. learning to prevent abuse C. distancing yourself from abuse D. reporting the abuse to local authorities?
Last Answer : Need answer
Description : The primary reason for a physician to prescribe human insulin is that: a) It has a faster onset of action than other insulins b) It has a shorter duration of action than other insulins c ... in preventing the complications of diabetes than animal insulins e) It is more sterile than other insolines.
Last Answer : Ans: C
Description : Which one of the following drugs is most effective in preventing transmission of HIV virus from the mother to the foetus? (A) Lamivudine (B) Zidovudine (C) Indinavir (D) Ribavirin
Last Answer : (B) Zidovudine