Description : Which of the following alloys does not contain nickel? (A) Chlorinet - 2 alloy (B) Monel (C) Inconel (D) Babbitt metal
Last Answer : (D) Babbitt metal
Description : Which of the following alloys does not contain nickel? (A) Chloro, et-2 alloy (B) Monel (C) Inconel (D) Babbitt metal
Description : Which of the following is a light alloy? (A) Monel metal (B) Dow metal (C) German silver (D) Babbitt meta
Last Answer : (B) Dow metal
Description : Which of the following low melting alloy containing bismuth and lead is used for electric fuse? (A) Wood's metal (B) Babbitt metal (C) Monel metal (D) Duralumin
Last Answer : Option A
Description : An ideal material of construction for the storage of 50% caustic soda solution would be (A) Karbate (B) High silicon cast iron (C) Monel (D) None of these
Last Answer : (C) Monel
Description : Caustic soda can be stored in __________ drums. (A) Steel (B) Cast iron (C) Brass (D) Gun metal
Last Answer : (A) Steel
Description : Wood metal is not used for making (A) Soft solder (B) Casting for dental work (C) Storage tank for storing brine and caustic soda (D) Fusible safety plug for pressure cooke
Last Answer : (C) Storage tank for storing brine and caustic soda
Description : . Age hardening is connected with (A) Babbitt metal (B) Gun metal (C) Stainless steel (D) Duralumin
Last Answer : D) Duralumin
Description : Which of the following is the most adverse factor challenging the choice of mercury electrolytic cell process for the production of caustic soda? (A) High cost of mercury (B) High specific gravity of mercury (C) Non-availability of high purity mercury (D) Pollution of water stream by mercury
Last Answer : (D) Pollution of water stream by mercury
Description : Mercury electrolytic cells are preferred over diaphragm electrolytic cell (for production of caustic soda), as it (A) Has larger production capacity per unit cell (B) Consumes less power per ton of Cl2 produced (C) Produces high purity (70%) caustic soda directly (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Commercial production of soda ash by Solvay process requires limestone, __________ as raw materials. (A) Coke and sand (B) Brine and coal (C) Coke and caustic soda (D) None of these
Last Answer : (B) Brine and coal
Description : Nickel made/clad equipments are suitable for handling (A) Ammonia (both aqueous & anhydrous) (B) Fruit juices, milk & its products and caustic soda solution (C) Nitric acid & hydrochloric acid (concentrated) (D) Sulphuric acid (concentrated)
Last Answer : (B) Fruit juices, milk & its products and caustic soda solution
Description : Caustic soda is produced in a mercury cell having anode and cathode made respectively of moving mercury and (A) Moving mercury and graphite (B) Graphite and moving mercury (C) Moving mercury and carbon (D) Moving mercury and crimped steel wire
Last Answer : (B) Graphite and moving mercury
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 : Acetylene gas holder is made of (A) Copper (B) Cast iron (C) Steel (D) Monel metal
Last Answer : (C) Steel
Description : Heavy duty bearings are usually made of (A) White metal (B) Phosphorous bronze (C) Monel (D) Zinc
Last Answer : (A) White metal
Description : Bearings subjected to light load are made of (A) White metal (B) Phosphorous bronze (C) Monel (D) Silicon bronze
Last Answer : (B) Phosphorous bronze
Description : Metallic surveying tapes are made of __________ which has a low co efficient of expansion & enough strength. (A) Invar (B) Hastelloy (C) Duralumin (D) Monel metal
Last Answer : (A) Invar
Description : Babbitt metal is not a (A) Tin base alloy (B) White metal (C) Lead base alloy (D) Pure metal
Last Answer : (D) Pure metal
Description : Which of the following is not a nickel based alloy? (A) Inconel (B) Hastelloys (C) Nimonics (D) Babbitt metal
Description : Babbitt metal used for making bearings should have (A) High co-efficient of friction between journal and bearing (B) Ability to retain lubricant on its surface (C) Low co-efficient of friction between journal and bearing (D) Both (B) & (C)
Last Answer : (A) High co-efficient of friction between journal and bearing
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 : __________ does not contain tin as an alloying material. (A) Brass (B) Pewter (C) Solder (D) Babbitt metal
Last Answer : (A) Brass
Description : The material of construction of bearings is (A) Cast iron (B) Babbitt metal (C) Pig iron (D) Steel
Last Answer : (B) Babbitt metal
Description : The doctor's solution comprises of sodium plumbite in (A) Alcohol (B) Water (C) Aqueous caustic soda (D) Soda ash
Last Answer : (C) Aqueous caustic soda
Description : Complete removal of __________ from gasoline is done by Unisol process using caustic soda and methyl alcohol. (A) Waxes (B) Mercaptans (C) Asphalt (D) Diolefins
Last Answer : (B) Mercaptans
Description : Platinum and silver are corroded by (A) Caustic soda solution (B) Phosphoric acid (C) Sulphuric acid (10%) (D) None of these
Last Answer : (D) None of these
Description : Rubber lined pumps can be used to pump (A) Caustic soda (B) Chlorinated brine (C) Hypochlorous acid (D) All (A), (B) and (C)
Description : Caustic soda is transported in __________ lined containers. (A) Glass (B) Nickel (C) Neoprene (D) Either (B) or (C)
Last Answer : (D) Either (B) or (C)
Description : A multiple effect evaporator has a capacity to process 4000 kg of solid caustic soda per day, when it is concentrating from 10% to 25% solids. The water evaporated in kg per day is (A) 6000 (B) 24000 (C) 60000 (D) 48000
Last Answer : (B) 24000
Description : Both white phosphorous as well as red phosphorous (A) Are soluble in CS2 (B) Burns when heated in air (C) Reacts with hot caustic soda solution to give Phosphine (D) All (A), (B), and (C)
Last Answer : (B) Burns when heated in air
Description : Pick out the wrong statement. (A) Caustic embrittlement of boiler's metallic parts is caused by highconcentration of caustic soda in boiler feed water (B) Cooling and freezing of water kills the ... goes on decreasing (D) Dissolved oxygen content in high pressure boiler feed water should be nil
Last Answer : (B) Cooling and freezing of water kills the bacteria present in it
Description : Le-Blanc process is a primitive process for the manufacture of (A) Caustic soda (B) Soda ash (C) Bromine from sea water (D) Hydrochloric acid
Last Answer : (B) Soda ash
Description : Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium dodecylbenzene sulphate, which is a/an (A) Explosive (B) Soap (C) Detergent (D) Analgesic drug
Last Answer : (C) Detergent
Description : Which of the following is a co-product during the manufacture of caustic soda by electrolysis of brine? (A) Na2CO3 (B) NaHCO3 (C) H2 (D) None of these
Last Answer : (C) H2
Description : Which of the following is a bleaching agent added in the detergents to facilitate removal of stains caused due to blood, tea etc? (A) Sodium silicate (B) Sodium borate (C) Sodium tripolyphosphate (STPP) (D) Caustic soda
Last Answer : (B) Sodium borate
Description : Which of the following processes does not produce Cl2 as a co-product during the manufacture of caustic soda? (A) Diaphragm electrolytic cell process (B) Mercury electrolytic cell process (C) Lime-soda process (D) None of these
Last Answer : (C) Lime-soda process
Description : Mercury cells for caustic soda manufacture, compared to diaphragm cells (A) Require lower initial investment (B) Require more power (C) Produce lower concentration NaOH (D) None of these
Description : Solvay process is used for the manufacture of (A) Caustic soda (B) Soda ash (C) Caustic potash (D) Soda lime
Description : Salt is the basic raw material for the manufacture of (A) Cement (B) Glass (C) Potteries (D) Caustic soda
Last Answer : (D) Caustic soda
Description : In Kraft process of paper manufacture, white cooking liquor consists of caustic soda (A) Sodium sulphide & sodium carbonate (B) Sodium sulphite & sodium carbonate (C) Sodium sulphite & sodium sulphide (D) None of these
Last Answer : (A) Sodium sulphide & sodium carbonate
Description : Explain Ammonia recovery in Solvey’s process for the production of Soda ash.
Last Answer : Ammonia Recovery in Solvey's process CaO is formed as a by-product of the thermal decomposition of limestone in the lime kiln. This CaO enters a lime slaker to react with water to form calcium hydroxide ... 2H2O(l) + 2NH3(g) The ammonia is recycled back into the process to form ammoniated brine.
Description : Which of the following is not used as a filter medium in case of corrosive liquids? (A) Nylon (B) Glass cloth (C) Metal cloth of monel or stainless steel (D) Cotton fabric
Last Answer : (D) Cotton fabric
Description : Which of the following is not a copper based alloy with nickel? (A) German silver (B) Monel metal (C) Inconel (D) Constantan
Last Answer : (C) Inconel
Description : Nickel and copper are the basic constituents of (A) Hastelloy (B) Monel metal (C) German silver (D) Inconel
Last Answer : (B) Monel meta
Description : Nickel is a constituent of (A) Bronze (B) Solder (C) Duralumin (D) Monel metal
Last Answer : (D) Monel metal
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 : __________ does not contain copper as an alloying element, (A) Nichrome (B) Manganin (C) Perminvar (D) Monel metal
Last Answer : (A) Nichrome
Description : Nickel base alloys with __________ are known as monel metal. (A) Zinc (B) Tin (C) Copper (D) Molybdenum
Last Answer : (C) Copper