Silicon percentage in acid resistant cast iron is about (A) 4 (B) 8 (C) 14 (D) 20

Silicon percentage in acid resistant cast iron is about
(A) 4
(B) 8
(C) 14
(D) 20
by

1 Answer

Answer :

(C) 14
by

Related questions

Silicon percentage in acid resistant cast iron is about (A) 4 (B) 8 (C) 14 (D) 20

Description : Silicon percentage in acid resistant cast iron is about (A) 4 (B) 8 (C) 14 (D) 20

Last Answer : (A) 4

Carbon percentage is the same in cast iron and (A) Wrought iron(B) Pig iron(C) Mild steel(D) High silicon (14%) 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

Duriron is (A) Acid resistant, brittle and very hard (B) High silicon iron (C) Prone to breakage due to thermal expansion because of its very high co￾efficient of thermal expansion (D) All (A), (B) and (C)

Description : Duriron is (A) Acid resistant, brittle and very hard (B) High silicon iron (C) Prone to breakage due to thermal expansion because of its very high co￾efficient of thermal expansion (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

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

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

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)

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)

Silicon percentage in the silicon steel used for electrical appliances/equipments is (A) 0.3-0.4 (B) 12-14 (C) 3-4 (D) 20-25

Description : Silicon percentage in the silicon steel used for electrical appliances/equipments is (A) 0.3-0.4 (B) 12-14 (C) 3-4 (D) 20-25

Last Answer : Option C

Silicon percentage in silicon steel used for electrical equipments is about (A) 1 (B) 4.0 (C) 8 (D) 14

Description : Silicon percentage in silicon steel used for electrical equipments is about (A) 1 (B) 4.0 (C) 8 (D) 14

Last Answer : Option B

The fermenter used in the production of penicillin (by deep fermentation process) is made of (A) Glass (B) Glass lined steel (C) High silicon cast iron (D) Porcelain

Description : The fermenter used in the production of penicillin (by deep fermentation process) is made of (A) Glass (B) Glass lined steel (C) High silicon cast iron (D) Porcelain

Last Answer : (B) Glass lined steel

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

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

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

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

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

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

Presence of high amount of silicon in cast iron (A) Suppresses the decomposition of Fe3C (B) Increases the formation of graphite (C) Increases the contraction of the metal (D) Reduces its fluidity

Description : Presence of high amount of silicon in cast iron (A) Suppresses the decomposition of Fe3C (B) Increases the formation of graphite (C) Increases the contraction of the metal (D) Reduces its fluidity

Last Answer : (B) Increases the formation of graphite

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

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

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

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

Which of the following constituents of cast iron is mainly responsible for imparting it an anti-corrosive property? (A) Silicon (B) Phosphorus (C) Sulphur (D) None of these

Description : Which of the following constituents of cast iron is mainly responsible for imparting it an anti-corrosive property? (A) Silicon (B) Phosphorus (C) Sulphur (D) None of these

Last Answer : (A) Silicon

Corrosion resisting properties of cast iron are significantly improved by the addition of 12 - 15% of (A) Tungsten (B) Vanadium (C) Silicon (D) All (A), (B) & (C)

Description : Corrosion resisting properties of cast iron are significantly improved by the addition of 12 - 15% of (A) Tungsten (B) Vanadium (C) Silicon (D) All (A), (B) & (C)

Last Answer : (C) Silicon

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

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

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, Kel-F and Teflon (B) Mild steel and stainless steel (C) Cast iron, tin and aluminium (D) Copper, nickel and Monel

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

__________ iron is the purest form of iron. (A) Cast(B) Wrought(C) Pig(D) High silicon

Description : __________ iron is the purest form of iron. (A) Cast (B) Wrought (C) Pig (D) High silicon

Last Answer : (B) Wrought

Addition of silicon to cast iron (A) Promotes graphite module formation (B) Improves its ductility (C) Does not promote graphite flakes formation (D) Increases the fluidity of molten metal

Description : Addition of silicon to cast iron (A) Promotes graphite module formation (B) Improves its ductility (C) Does not promote graphite flakes formation (D) Increases the fluidity of molten metal

Last Answer : Option D

Silicon percentage in iron castings to have maximum hardness should be about (A) 0.3 (B) 0.5 (C) 0.8 (D) 2.5

Description : Silicon percentage in iron castings to have maximum hardness should be about (A) 0.3 (B) 0.5 (C) 0.8 (D) 2.5

Last Answer : (C) 0.8

Pick out the wrong statement. (A) Alloys are harder than their component elements (B) Presence of silicon in steel decreases its electrical resistance (C) Karbate is an acid resistant material of construction (D) Nichrome, a steel alloyed with 10% Ni and 20% Cr can be used upto a temperature of 1100°C

Description : Pick out the wrong statement. (A) Alloys are harder than their component elements (B) Presence of silicon in steel decreases its electrical resistance (C) Karbate is an acid resistant material of construction ... , a steel alloyed with 10% Ni and 20% Cr can be used upto a temperature of 1100°C

Last Answer : (B) Presence of silicon in steel decreases its electrical resistance

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

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

Which one contains the least percentage of carbon?(A) Wrought iron (B) High speed steel (C) Cast iron (D) Pig 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

Which of the following has the least carbon percentage? (A) Low carbon steel (B) Mild steel (C) Wrought iron (D) White cast iron

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

What is the element that is in the highest percentage in the composition of the earth? (1) Silicon (2) Oxygen (3) Magnesium (4) Iron

Description : What is the element that is in the highest percentage in the composition of the earth? (1) Silicon (2) Oxygen (3) Magnesium (4) Iron

Last Answer : (2) Oxygen Explanation: Earth, our home, is the third planet from the sun. It is the only planet known to have an atmosphere containing free oxygen, oceans of liquid water on its surface, and, of ... of it in the oceans. About a fifth of its atmosphere is made up of oxygen, produced by plants.

What is the element that is in the highest percentage in the composition of the earth ? (1) Silicon (2) Oxygen (3) Magnesium (4) Iron

Description : What is the element that is in the highest percentage in the composition of the earth ? (1) Silicon (2) Oxygen (3) Magnesium (4) Iron

Last Answer : Oxygen

Which one of the following contains maximum percentage of carbon? (1) Cast iron (2) Stainless steel (3) Wrought iron (4) High speed 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.

What is the percentage of carbon in cast iron ?

Description : What is the percentage of carbon in cast iron ?

Last Answer : 2.5%.

What Is The Percentage Of Carbon In Cast Iron?

Description : What Is The Percentage Of Carbon In Cast Iron?

Last Answer : 2.5%.

Which one of the following contains maximum percentage of carbon ? (1) Cast iron (2) Stainless steel (3) Wrought iron (4) High speed 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 : Cast iron

Karbate is (A) A mixture of iron dust and saw dust (B) Carbon impregnated with resin (usually Bakelite) (C) An acid resistant material (D) Both (B) and (C)

Description : Karbate is (A) A mixture of iron dust and saw dust (B) Carbon impregnated with resin (usually Bakelite) (C) An acid resistant material (D) Both (B) and (C)

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

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 : 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

The percentage of sugar recovery in sugarcane is a] 8-9% b] 14-16% c] 20-22% d] 30-32%

Description : The percentage of sugar recovery in sugarcane is a] 8-9% b] 14-16% c] 20-22% d] 30-32%

Last Answer : a] 8-9%

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)

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

SO3 is absorbed using H2SO4 in a (A) Cast iron packed tower (B) Stainless steel plate tower (C) Packed steel tower lined with acid proof bricks (D) None of these

Description : SO3 is absorbed using H2SO4 in a (A) Cast iron packed tower (B) Stainless steel plate tower (C) Packed steel tower lined with acid proof bricks (D) None of these

Last Answer : (C) Packed steel tower lined with acid proof bricks

Most suitable material of construction for the storage of concentrated nitric acid is (A) Cast iron (B) Monel (C) Karbate (D) Aluminium or chromium alloys (Cr > 18% for cold acid)

Description : Most suitable material of construction for the storage of concentrated nitric acid is (A) Cast iron (B) Monel (C) Karbate (D) Aluminium or chromium alloys (Cr > 18% for cold acid)

Last Answer : (D) Aluminium or chromium alloys (Cr > 18% for cold acid)

In the Contact process of sulphuric acid manufacture, 98% acid cooler is made of (A) Stainless steel (B) Cast iron (C) Lead lined steel (D) Rubber lined steel

Description : In the Contact process of sulphuric acid manufacture, 98% acid cooler is made of (A) Stainless steel (B) Cast iron (C) Lead lined steel (D) Rubber lined steel

Last Answer : (B) Cast iron

Sulphur melting pit in the sulphuric acid plant is made of (A) Lead lined stainless steel (B) Cast iron (C) Steel or cement-brick lined (D) Hard wood

Description : Sulphur melting pit in the sulphuric acid plant is made of (A) Lead lined stainless steel (B) Cast iron (C) Steel or cement-brick lined (D) Hard wood

Last Answer : (C) Steel or cement-brick lined

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

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

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

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

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

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

Last Answer : (C) Karbate

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

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

Hydrocyanic acid is not shipped in (A) Cast iron vessels (B) Steel cylinders (C) Aluminium containers (D) Monel drums

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

Aqueous nitric acid is stored in __________ vessel. (A) Plain carbon steel (B) Stainless steel (C) Cast iron (D) Thermosetting plastic material

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

Hydrochloric acid is stored in a __________vessel. (A) Lead lined steel (B) Rubber lined steel (C) Stainless steel (D) Cast iron

Description : Hydrochloric acid is stored in a __________vessel. (A) Lead lined steel (B) Rubber lined steel (C) Stainless steel (D) Cast iron

Last Answer : (B) Rubber lined steel

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

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

Maximum carbon content in cast iron is __________ percent. (A) 3.8 (B) 5.2 (C) 4.8 (D) 4.3

Description : Maximum carbon content in cast iron is __________ percent. (A) 3.8 (B) 5.2 (C) 4.8 (D) 4.3

Last Answer : (D) 4.3

For melting one tonne of cast iron (A) 700 m3 air is required (B) 20 kg limestone is required (C) One quintal coke is required (D) All the above

Description : For melting one tonne of cast iron (A) 700 m3 air is required (B) 20 kg limestone is required (C) One quintal coke is required (D) All the above

Last Answer : Answer: Option D

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 appliances made of silicon steel contains maximum percentage of silicon (about 4%)? (A) Armature of small motors/generators (B) Generators and small motors (C) Induction motors (D) High frequency transformers

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