Description : Concentrated HCl at 30°C can be stored in a vessel made of (A) PTFE and porcelain (B) Cast iron and aluminium (C) Stainless steel and high silicon cast iron (D) None of these
Last Answer : (A) PTFE and porcelain
Description : 100% H2SO4 at 30°C can't be stored in a vessel made/lined with (A) Cast iron and high silicon iron (B) Mild steel and stainless steel (C) Aluminium, tin and rubber (D) Teflon, glass and porcelain
Last Answer : (C) Aluminium, tin and rubber
Description : Refined acetic acid storage vessel are made of (A) Copper (B) Aluminium (C) High carbon steel (D) Nickel
Last Answer : (B) Aluminium
Description : Spray dryer for evaporating milk to produce milk powder is made of (A) Lead lined steel (B) Stainless steel (C) Aluminium (D) Cast iron
Last Answer : (B) Stainless steel
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 : Aqueous nitric acid is stored in __________ vessel. (A) Plain carbon steel (B) Stainless steel (C) Cast iron (D) Thermosetting plastic material
Last Answer : (C) 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 ofthe following materials is used in the manufacture of resistance grids to be used in the starters of large motors ? (a) Copper (b) Aluminium (c) Steel (d) Cast-iron
Description : Polymerisation reactor used in the production of styrene butadiene rubber (SBR) is made of (A) Stainless steel or glass lined steel (B) Nickel clad steel (C) High silicon cast iron (D) Aluminium
Last Answer : (A) Stainless steel or glass lined 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 : Acetaldehyde is produced by hydration of acetylene in a sulphuric acid solution of mercuric sulphate. Hydration tower is made of (A) Rubber lined mild steel (B) Lead lined mild steel (C) Aluminium (D) Cast iron
Last Answer : (A) Rubber lined mild steel
Description : Aqueous nitric acid is stored in (A) Steel drum (B) Stainless steel vessel (C) Cast iron vessel lined with acid-proof masonry brick (D) Cast iron vessel
Last Answer : (B) Stainless steel vessel
Description : The digester of a Gobar gas plant is a (A) Mild steel drum (B) Stainless steel vessel (C) Masonry well (D) Cast iron vessel
Last Answer : (C) Masonry well
Description : Neutraliser tank used for reacting nitric acid with ammonia for the production of ammonium nitrate is made of (A) Aluminium (B) Stainless steel (C) High silicon (14%) iron (D) Copper
Description : Dip stick used for measuring the level of petro fuels (e.g. petrol, diesel, fuel oil etc.) in the storage tank is usually made of (A) Brass (B) Copper (C) High carbon steel (D) Aluminium
Last Answer : (A) Brass
Description : Carbon tetrachloride can be stored in a storage vessel made of (A) High silicon iron (14% Si) (B) Tin (C) Stainless steel (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Cutter Bar made of a) Copper b) High Grade Steel c) Cast iron d) None of the above
Last Answer : High Grade Steel
Description : Acetylene gas holder is made of (A) Copper (B) Cast iron (C) Steel (D) Monel metal
Last Answer : (C) Steel
Description : The important metal used with iron to produce stainless steel is (1) Aluminium (2) Chromium (3) Tin (4) Carbon
Last Answer : Chromium
Description : Water gas generator is made of (A) Carbon steel-brick lined (B) Stainless steel-lead lined (C) Cast iron (D) High carbon steel-porcelain lined
Last Answer : (A) Carbon steel-brick lined
Description : Acetaldehyde is shipped in __________ drums. (A) Cast iron (B) Steel (C) Aluminium (D) Either (B) & (C)
Last Answer : (D) Either (B) & (C)
Description : For handling sulphuric acid of 95% strength, the suitable material of construction for pipes is (A) Stainless steel (B) Cast iron (C) Aluminium (D) Nickel
Last Answer : (B) Cast iron
Description : Hydrocyanic acid is not shipped in (A) Cast iron vessels (B) Steel cylinders (C) Aluminium containers (D) Monel drums
Last Answer : (A) Cast iron vessels
Description : Cemented carbide tools are not suitable for cutting (A) Aluminium (B) Brass (C) Cast iron (D) Steel
Last Answer : (A) Aluminium
Description : Compressed dry air is used as the cutting fluid, while machining (A) Steel (B) Cast iron (C) Aluminium (D) None of these
Last Answer : Option B
Description : Oil of Wintergreen (Methyl salicylate) is obtained by treating salicylic acid with (a) Methane at 150°C (b) CH3OH and conc. H2SO4 (c) Methyl chloride (d) NaOH and then CH3OH
Last Answer : CH3OH and conc. H2SO4
Description : Propyne is formed by (a) Polymerization of acetylene (b) Reaction of acetylene with methane (c) Reaction of acetylene with methyl chloride (d) Reaction of sodium acetylide with methyl chloride
Last Answer : Reaction of sodium acetylide with methyl chloride
Description : The shafts are made of a. mild steel b. alloy steel c. copper alloys d. cast iron.
Last Answer : d. cast 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
Description : Ball bearings are generally made of (A) Plain carbon steel (B) Chrome carbon steel (C) Stainless steel (D) Malleable cast iron
Last Answer : (B) Chrome carbon steel
Description : ________ has a lowrelative permeability and is used principally in field frames when cost is of primary importance and extra weight is not objectionable. (a) Cast steel (b) Aluminium (c) Soft steel (d) Cast iron
Last Answer : (d) Cast iron
Description : Brine (15% concentration) can be stored in a vessel made of (A) Monel (B) Karbate (C) Cast iron (D) None of these
Last Answer : (A) Monel
Description : Earth wire or ground wire is made of: a) copper b) aluminium c) iron d) galvanized steel
Last Answer : Ans: D
Description : Out of the following, the __________ pipe has the least corrosion resistance. (A) Mild steel (B) Copper (C) Cast iron (D) Wrought iron
Last Answer : D) Wrought 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 : 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 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 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
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
Last Answer : Option C
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
Description : The field coils of D.C. generator are usually made of (a) mica (b) copper (c) cast iron (d) carbon
Last Answer : Ans: b (b) copper
Description : Reactor used in the production of polyvinyl chloride (PVC) is made of (A) Nickel or glass lined steel (B) Aluminium (C) Tantalum (D) Lead
Last Answer : (A) Nickel or glass lined steel
Description : Chlorine free radicals react with methane by : (a) donating their free-radical electron to methane to form chloromethane. (b) abstracting a hydrogen atom from methane, and producing ... produce chloromethane. (d) forming a carbonium ion intermediate that rapidly dissociates to form chloromethane
Last Answer : abstracting a hydrogen atom from methane, and producing HCl and a methyl radical
Description : The MOST effective manner to produce a hard surface on a cast is by: A. Employ as much water as possible on mixing B. Employ as little water as possible on mixing C. Adding 2% of borax to the mix D. Adding calcium tetraborate E. None of the above
Last Answer : B. Employ as little water as possible on mixing
Description : The shovel of seed drill is made up of: A. Cast iron B. Mild steel C. White metal D. Carbon steel
Last Answer : Carbon steel
Description : Mould board are usually made from a. Soft centre steel b. Hardened carbon steel c. Chilled cast iron d. Mild steel
Last Answer : a. Soft centre steel
Description : The chlorination of methane to give CCl4 is an example of (a) an electrophilic addition (b) a free-radical substitution (c) a nucleophilic addition (d) an electrophilic substitution
Last Answer : a free-radical substitution