Description : Which of the following has the least carbon percentage? (A) Low carbon steel (B) Mild steel (C) Wrought iron (D) White cast iron
Last Answer : (C) Wrought iron
Description : Carbon percentage is the same in cast iron and (A) Wrought iron (B) Pig iron (C) Mild steel (D) High silicon (14%) iron
Last Answer : (B) Pig iron
Description : Which one is remelted and poured into moulds to get cast iron? (A) Wrought iron (B) Pig iron (C) Low carbon steel (D) Mild steel
Description : Which of the following has the highest compressive strength? (A) Wrought iron (B) Cast iron (C) Mild steel (D) High carbon steel
Last Answer : (D) High carbon steel
Description : Which of the following is the purest form of iron? (A) Cast iron (B) Wrought iron (C) Mild steel (D) High carbon steel
Last Answer : Answer: Option B
Description : Material of construction of pipe generally used for conveying water in India is (A) Stainless steel (B) Cast iron (C) Wrought iron (D) Lead lined steel
Last Answer : (B) Cast iron
Description : Which one contains the least percentage of carbon? (A) Wrought iron (B) High speed steel (C) Cast iron (D) Pig iron
Last Answer : (A) Wrought iron
Description : Which of the following has the least value of ultimate tensile strength (UTS)? (A) Medium carbon steel (B) High carbon steel (C) Cast iron (D) Wrought iron Answer: Option C
Last Answer : (C) Cast iron
Description : Which of the following has the least value of ultimate tensile strength (UTS)? (A) Medium carbon steel (B) High carbon steel (C) Cast iron (D) Wrought iron
Last Answer : Option B
Description : __________ is used as a material of construction for the blade of power saw. (A) Wrought iron (B) Stainless steel (C) Mild steel (D) High speed steel
Last Answer : Option D
Description : Which of the following materials may prove unsuitable for handling acetic acid (glacial & anhydrous) at 40°C? (A) Silicone rubber, teflon, porcelain and wood (B) Nickel, monel, stainless steel and graphite (C) Aluminium, copper, high silicon iron (D) Brass, cast iron, mild steel and tin
Last Answer : (D) Brass, cast iron, mild steel and tin
Description : H2SO4 (< 50% concentration) is corrosive to (A) Aluminium, mild steel, stainless steel, concrete & tin (B) Copper, cast iron & high silicon iron (14% Si) (C) Rubber (butyl and hard), silicone rubber & Teflon (D) Glass, graphite, porcelain & stoneware
Last Answer : (A) Aluminium, mild steel, stainless steel, concrete & tin
Description : Which of the following material of construction may be recommended by a chemical engineer for handling a gaseous chlorine (dry or wet) stream in a fluid flow system? (A) High silicon iron, silicon rubber ... Mild steel and stainless steel (C) Cast iron, tin and aluminium (D) Copper, nickel and Monel
Last Answer : (A) High silicon iron, silicon rubber, Kel-F and Teflon
Description : The coefficient of static friction will have the highest value in case of a.Mild steel and mild steel b.Mild steel and copper c.Cast iron and steel d.Rope and wood e.Any of the above loctions
Last Answer : d. Rope and wood
Description : The shafts are made of a. mild steel b. alloy steel c. copper alloys d. cast iron.
Last Answer : d. cast iron.
Description : is usually used for brush rockers (a) Mild steel (b) Copper (c) Aluminium (d) Cast-iron
Last Answer : (d) Cast-iron
Description : Which of the following has the poorest weldability? (A) Low carbon steel (B) Mild steel (C) Wrought iron (D) High-carbon steel
Last Answer : (D) High-carbon steel
Description : An alloy of iron containing 4% carbon is called (A) High carbon steel (B) Wrought iron (C) Mild steel (D) None of these
Last Answer : (D) None of these
Description : Which of the following will have the highest melting point? (A) Pig iron (B) Mild steel (C) Wrought iron (D) High carbon stee
Description : Lead is poured into the joint between two- __________ pipes. (A) Mild steel (B) Concrete (C) Cast iron (D) Asbestos cement
Description : On being hit with a hammer, __________ will readily fracture. (A) Brass (B) Mild steel (C) Cast iron (D) Lead
Last Answer : C) Cast iron
Description : Lead is poured into the joint between two __________ pipes. (A) Mild steel (B) Concrete (C) Cast iron (D) Asbestos cement
Last Answer : Option C
Description : Wrought iron is (A) High carbon iron (B) Highly resistance to acid corrosion (C) Malleable & ductile; and hence is used for chain links, hooks & couplings (D) An alloy of iron, chromium & carbon
Last Answer : (C) Malleable & ductile; and hence is used for chain links, hooks & couplings
Description : Wrought iron is having very high (A) Hardness (B) Strength (C) Corrosion resistance (D) Susceptibility to changes in its properties by heat treatment
Last Answer : (C) Corrosion resistance
Description : Wrought iron does not have (A) Uniform strength in all directions (B) Ability to hold protective coating (C) High ductility & corrosion resistance (D) Easily weldable characteristics
Last Answer : Option A
Description : The steel used in R.C.C. work is (A) Stainless steel (B) Mild steel (C) High carbon steel (D) Wrought iron
Description : Which has the maximum melting point out of the following? (A) Steel (B) Cast iron (C) Stainless steel (D) Wrought iron
Last Answer : (D) Wrought iron
Description : Which of the following is the easiest to bend? (A) Steel (B) Stainless steel (C) Cast iron (D) Wrought iron
Description : In the Kraft (sulphate) process for the paper manufacture, the digestor is made of (A) Cast iron (B) Stainless steel (C) Karbate carbon (D) Wrought iron
Last Answer : (B) Stainless steel
Description : Polymerisation reactor used for the production of styrene butadiene rubber (SBR) is made of (A) Cast iron (B) Stainless steel or glass lined vessel (C) Karbate (D) Wrought iron
Last Answer : (B) Stainless steel or glass lined vessel
Description : Which of the following undergoes granular fracture? (A) Wrought iron (B) Steel (C) Cast iron (D) None of these
Last Answer : (B) Steel
Description : Pick up the correct statement from the following: (A) Copper pipes are highly resistant to acidic and alkaline water (B) Wrought iron pipes are lighter than cast iron pipes (C) Wrought iron pipes corrode quickly and are less durable (D) All the above
Last Answer : (D) All the above
Description : Alloy steel containing chromium to resist rusting is known as (a) wrought iron (b) cast iron (c) hard steel (d) stainless steel
Last Answer : Ans:(d)
Description : Alloy steel containing chromium, to resist rusting, is known as (a) Wrought iron (b) Cast iron (c) Hard steel (d) Stainless steel
Description : Which one of the following contains maximum percentage of carbon? (1) Cast iron (2) Stainless steel (3) Wrought iron (4) High speed steel
Last Answer : (1) Cast iron Explanation: Cast Iron is a hard, brittle, nonmalleable iron-carbon alloy, cast into shape, containing 2 to 4.5 percent carbon. Steels contain less than 2% and usually less than 1% carbon, ... percent carbon. Wrought iron is an iron alloy with very low carbon (0.04 to 0.08%) content.
Description : The purest form of Iron is : (1) Cast iron (2) Steel (3) Pig iron (4) Wrought iron
Last Answer : (4) Wrought iron Explanation: Wrought iron is an iron alloy with a very low carbon content in Contrast to steel, and has fibrous inclusions, known as slag. This is what gives it a " ... qualifies because current standards for commercially pure iron require a carbon content of less than 0.008 wt%.
Description : Which is the purest form of iron? (1) Steel (2) Cast iron (3) Pig iron (4) Wrought iron
Last Answer : (4) Wrought iron Explanation: Iron is a chemical element with the symbol Fe and atomic number 26. It is a metal in the first transition series. It is the most common element (by mass) forming the ... the Earth's crust. Wrought iron is the purest form of iron. It contains less than 0.25% carbon.
Description : A ferrous metal is (A) Cast iron (B) Wrought iron (C) Steel (D) All the above
Last Answer : Answer: Option D
Description : Bessemer process is used for the manufacture of (A) Pig iron (B) Cast iron (C) Wrought iron D) Steel
Description : Depending on the chemical composition and mechanical properties, iron may be classified as (A) Cast iron (B) Wrought iron (C) Steel (D) All the above
Description : Which one of the following contains maximum percentage of carbon ? (1) Cast iron (2) Stainless steel (3) Wrought iron (4) High speed steel
Last Answer : Cast iron
Last Answer : Wrought iron
Description : Which is the purest form of iron ? (1) Steel (2) Cast iron (3) Pig iron (4) Wrought iron
Description : Out of the following __________ iron has the best capability to bear sudden & excessive shocks. (A) White (B) Cast (C) Wrought (D) Pig
Last Answer : (C) Wrought
Description : The material of construction of pressure mills used for squeezing out the juice from sugar cane is (A) Stainless steel (B) Cast iron (C) Mild steel (D) Monel
Description : Oxyacetylene reducing flame is used while carrying out welding on (A) Alloy steel (B) Grey cast iron (C) Mild steel (D) High carbon steel
Last Answer : (C) Mild steel
Description : __________ iron is produced, when molten pig iron is chilled suddenly. (A) White cast (B) Grey cast (C) Wrought (D) None of these
Last Answer : (A) White cast
Description : __________ iron is produced, when molten pig iron is allowed to cool gradually. (A) White cast (B) Grey cast (C) Wrought (D) None of these
Last Answer : (B) Grey cast
Description : __________ iron is the purest form of iron. (A) Cast (B) Wrought (C) Pig (D) High silicon
Last Answer : (B) Wrought