The 'bomb' in the bomb calorimeter is made of
(A) Molybdenum stainless steel
(B) Mild steel
(C) High silicon iron (14% Si)
(D) Copper

1 Answer

Answer :

(A) Molybdenum stainless steel

Related questions

Description : Most suitable material for high pressure vessel operating at 500 atm. and 500° C is (A) Molybdenum stainless steel (B) 18/8 stainless steel (C) Mild steel (D) High silicon iron (14% Si)

Last Answer : (A) Molybdenum stainless steel

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 : Copper is dissolved from its ore by H2SO4 in a percolation tank made of (A) Wood (B) Stainless steel (C) Reinforced concrete lined with lead (D) High silicon iron (14% Si)

Last Answer : (C) Reinforced concrete lined with lead

Description : Rotary driers are generally made of (A) Cast iron (B) Mild steel (C) High silicon iron (14% Si) (D) Tin lined with refractory bricks

Last Answer : (B) Mild steel

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 : 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

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 : 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 : 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 : Containers made of high silicon cast iron (14% Si) are not suitable for the storage of (A) Acetic acid (B) Benzoic & boric acids (C) Phosphoric acid (95%) & sulphuric acid (95%) (D) Hydrochloric acid (concentrated)

Last Answer : (D) Hydrochloric acid (concentrated)

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 : Gas holder of a gobar (cow-dung) gas plant is made of (A) Molybdenum stainless steel (B) Tin (C) Mild steel (D) Aluminium

Last Answer : (C) Mild steel

Description : The joint for soldering is supported by binding wire made of (A) Mild steel (B) Copper (C) Soft iron (D) Stainless steel

Last Answer : Option C

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 : 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 : Plate and frame filter press is usually made of (A) Mild steel (B) Cast iron (C) Stainless steel (D) Galvanised iron

Last Answer : (B) Cast iron

Description : Tank furnace used for melting of glass is made of (A) Mild steel (B) Cast iron (C) Refractory blocks (D) Stainless steel

Last Answer : (C) Refractory blocks

Description : Hydrochloric acid absorber in made of (A) Cast iron (B) Mild steel (C) Karbate (D) Stainless steel

Last Answer : (C) Karbate

Description : The main reason for making the copper calorimeter (used in bomb calorimeter) silvery white and shining/polished is to (A) Minimise its corrosion (B) Avoid radiation heat loss (C) Make it look attractive (D) None of these

Last Answer : (B) Avoid radiation heat loss

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 : Most common stainless steel type 316, which is highly resistant to corrosion contains (A) 16-13% Cr 10-14% Ni and 2-3% Mo (B) 20-22% Cr, and 8-10% Ni (C) 2-4% Cr, 22% NI and 2-4% Mo (D) None of these

Last Answer : (A) 16-13% Cr 10-14% Ni and 2-3% Mo

Description : Light weight metallic alloy used in aircraft industry is (A) Aluminium (B) High silicon (14%) iron (C) Duralumin

Last Answer : (C) Duralumin

Description : Specify the material of construction suitable for handling concentrated HNO3 at 100°C. (A) High silicon iron, Kel-F and Teflon (B) Tin and wood (C) Silicone rubber (D) Stainless steel

Last Answer : (A) High silicon iron, Kel-F and Teflon

Description : The steel used in R.C.C. work is (A) Stainless steel (B) Mild steel (C) High carbon steel (D) Wrought iron

Last Answer : Answer: Option B

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 : 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

Last Answer : (B) Cast iron

Description : Dies for wire drawing are generally made of (A) Mild steel (B) Stainless steel (C) Carbides (D) High carbon stee

Last Answer : (C) Carbides

Description : In a drilling process, the metal is removed by both shearing & extrusion. General purpose drills are made of (A) Stainless steel (B) Mild steel (C) High speed steel (D) High carbon steel

Last Answer : (C) High speed steel

Description : Dies for wire drawing are generally made of (A) Mild steel (B) Stainless steel (C) Carbides (D) High carbon steel

Last Answer : (A) Mild steel

Description : Hypersil' is a __________ steel. (A) High speed (B) Silicon (C) Molybdenum (D) Tungsten

Last Answer : (B) Silicon

Description : 18/8 stainless steel means, that it contains (A) 18% chromium and 8% nickel (B) 18% chromium and 8% molybdenum (C) 18% nickel and 8% chromium (D) 18% molybdenum and 8% chromium

Last Answer : (A) 18% chromium and 8% nickel

Description : The best material for the core of a transformer is – (1) stainless steel (2) mild steel (3) hard steel (4) soft iron

Last Answer : (4) soft iron Explanation: Iron has a very large magnetic response: it greatly amplifies an applied magnetic field. The transformer's ability to transfer energy depends on the strength of the magnetic ... field is amplified. The input energy can then be lower while still having the same effect.

Description : The best material for the core of a transformer is (1) stainless steel (2) mild steel (3) hard steel (4) soft iron

Last Answer : soft iron

Description : Straight silicon steel (containing Si from 0.5 to 5%) because of their low hysteresis loss and high magnetic permeability are used for electrical appliances. Which of the following electrical ... /generators (B) Generators and small motors (C) Induction motors (D) High frequency transformers

Last Answer : (D) High frequency transformers

Description : Which of the following alloy steels has the energy saving properties making it suitable for use in electrical machines? (A) Silicon steel (B) Chromium steel (C) Molybdenum steel (D) None of these

Last Answer : (A) Silicon steel

Description : Nickel and __________ are the alloying element added in steel to increase its toughness. (A) Molybdenum (B) Chromium (C) Vanadium (D) Silicon

Last Answer : Option D

Description : Mild steel is (A) A low carbon steel (0.05 to 0.3% carbon) (B) Highly resistant to corrosion (as much as stainless steel) (C) A high carbon steel (0.5 to 1.5% carbon) (D) Very poor in strength & ductility

Last Answer : (A) A low carbon steel (0.05 to 0.3% carbon)

Description : The shafts are made of a. mild steel b. alloy steel c. copper alloys d. cast iron.

Last Answer : d. cast iron.

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 : Explain the effect of nickel, chromium, silicon, molybdenum addition on the properties of steel.

Last Answer : 1) Effect of Nickel as alloying Element: i) Provides toughness, corrosion resistance, and deep hardening. ii) Increases resistance to impact iii ) Improves tensile strength 2. Effect ... temper brittleness. iv) increases strength. V0 Mo-carbides help increase creepresistance at elevated temps

Description : Calorific value of proteins in a living person is less than that in a bomb calorimeter because (A) Digestion and absorption of proteins is less than 100% (B) Respiratory quotient of proteins ... Specific dynamic action of proteins is high (D) Proteins are not completely oxidized in living persons

Last Answer : Answer : D

Description : Which of the following is a low melting point metal? (A) Stainless steel (B) Wrought iron (C) Tin (D) Copper

Last Answer : (C) Tin

Description : The steel generally used in R.C.C. work, is (A) Stainless (B) Mild steel (C) High carbon steel (D) High tension steel

Last Answer : Answer: Option B

Description : The steel used in steel cored conductors is usually (a) alloy steel (b) stainless steel (c) mild steel (d) high speed steel (e) all of the above

Last Answer : (c) mild steel

Description : The best method of determining sulphur in crude oil is by the __________ method. (A) Kjeldahl (B) Dumas (C) Bomb calorimeter (D) Junkers calorimeter

Last Answer : (C) Bomb calorimeter

Description : During its calorific value determination by bomb calorimeter, coal is combusted by (A) Air (B) Oxygen (C) Oxygen enriched air (D) None of these

Last Answer : (C) Oxygen enriched air

Description : Calorific values of both the solid as well as the liquid fuels can be determined by __________ calorimeter. (A) Bomb (B) Boy's (C) Junkers (D) None of these

Last Answer : (A) Bomb

Description : Bomb calorimeter is used to determine the (where, GCV - Gross Calorific Value. NCV - Net Calorific Value.) (A) GCV at constant pressure (B) GCV at constant volume (C) NCV at constant pressure (D) NCV at constant volume

Last Answer : (C) NCV at constant pressure

Description : Bomb calorimeter is used for the determination of calorific value of the __________ fuels. (A) Gaseous (B) Solid (C) Liquid (D) Both (B) and (C)

Last Answer : (D) Both (B) and (C)

Description : Calorific value as determined by bomb calorimeter is the (A) Higher calorific value at constant volume (B) Gross calorific value at constant pressure (C) Lower calorific value at constant pressure (D) Net calorific value at constant volume

Last Answer : (A) Higher calorific value at constant volume