90 + Interview Questions in Glass in Construction & Building Materials Page 2 InterviewSolution

51.	Which of the following is a raw material for common glass?(a) Lead dioxide(b) Potassium bicarbonate(c) Salt cake(d) LithargeThis question was addressed to me during an internship interview.This intriguing question comes from Glass in portion Glass, Lime, Clay Products & Bricks of Construction & Building Materials
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Discussion

52.	Common glass is also known as __________(a) Cup glass(b) Flask glass(c) Bottle glass(d) Furnace glassThis question was addressed to me during a job interview.I want to ask this question from Glass in division Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» RIGHT choice is (c) Bottle glass The best EXPLANATION: Common glass is also known as bottle glass. This TYPE of glass is prepared using cheap raw materials and is generally used to MANUFACTURE medicine BOTTLES.

Discussion

53.	The efflorescence on the surface of bricks is said to be slight if the white deposits cover about ________ of the surface.(a) 10%(b) 15%(c) 25%(d) 50%I had been asked this question in examination.The above asked question is from Bricks topic in division Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» CORRECT choice is (a) 10% The explanation: Presence of soluble salts CAUSES efflorescence on the surface of the BRICKS. The efflorescence on the surface of bricks is said to be slight if the white deposits COVER about 10% of the surface. It becomes heavy if these deposits are found on more than 50% of the surface.

Discussion

54.	The shape of Hoffman’s kiln is ______ in the plan.(a) Circular(b) Rectangular(c) Hexagonal(d) TrapezoidalI had been asked this question during an online interview.Origin of the question is Bricks topic in portion Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» The correct ANSWER is (a) CIRCULAR Easiest explanation: The shape of Hoffman’s KILN is circular in plan. It is divided into a NUMBER of chambers and each CHAMBER is provided with the main door for loading and unloading of the bricks.

Discussion

55.	Percentage of silica in good brick earth should be about _________(a) 10-15%(b) 20-35%(c) 50-60%(d) 80-90%The question was posed to me in an interview for internship.This key question is from Bricks topic in portion Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» The CORRECT option is (c) 50-60% To explain I would say: Percentage of SILICA in GOOD brick earth should be about 50-60%. Silica exists in clay either in the COMBINED state or in the free state. Its presence prevents shrinking and CRACKING of raw bricks.

Discussion

56.	Which of the following is an autoclave binding material?(a) Quick lime(b) Hydraulic lime(c) Gypsum(d) Lime-silicaThe question was asked in an interview for job.My question is based upon Lime topic in portion Glass, Lime, Clay Products & Bricks of Construction & Building Materials
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Discussion

57.	Second class bricks should not absorb water more than ________ by weight when soaked in cold water for one day.(a) 20%(b) 22%(c) 30%(d) 42%This question was posed to me in my homework.This is a very interesting question from Bricks in chapter Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» Right option is (b) 22% To elaborate: SECOND class BRICKS should not absorb WATER more than 22% by weight when soaked in cold water for one day. ALSO, first-class bricks should not absorb water more than 20% by weight.

Discussion

58.	The term kaolin is used for indicating the product which has the composition of impure kaolinite.(a) True(b) FalseI got this question by my college professor while I was bunking the class.This interesting question is from Clay Products topic in chapter Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» The correct answer is (b) False To explain: The TERM kaolin is USED for indicating the product which has the composition of pure kaolinite. Silica and alumina compounds are held in a colloidal STATE in kaolin and these FORM the BASIC constituents of all clays.

Discussion

59.	Allahabad tiles, corrugated tiles and pantiles are all varieties of ________ tiles.(a) Drain(b) Roof(c) Floor(d) DoorThe question was posed to me in an online interview.Enquiry is from Clay Products in section Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» Correct option is (b) ROOF To ELABORATE: ALLAHABAD tiles, corrugated tiles and PANTILES are important varieties of roof tiles available in the market. Roof tiles are used as a covering for pitched ROOFS.

Discussion

60.	The chemical composition of quick lime is ____________(a) CaS(b) CaO(c) MgO(d) MgSThe question was posed to me during a job interview.This intriguing question comes from Lime topic in division Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» The CORRECT CHOICE is (B) CaO The BEST explanation: The chemical composition of quick lime is CaO. It is obtained by calcination of relatively pure limestone. Quick lime has a great AFFINITY for moisture.

Discussion

61.	Potash-lead glass is also known as ____________(a) Flint glass(b) Bottle glass(c) Common glass(d) Soft glassThis question was posed to me in my homework.Enquiry is from Glass topic in section Glass, Lime, Clay Products & Bricks of Construction & Building Materials
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Discussion

62.	Percentage of alumina in good brick earth should be about ________(a) 5-10%(b) 20-30%(c) 35-40%(d) 45-60%I have been asked this question in semester exam.The origin of the question is Bricks topic in section Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» Right choice is (b) 20-30% Explanation: PERCENTAGE of alumina in good brick earth should be about 20-30%. Alumina is the main constituent of every KIND of clay and it IMPARTS plasticity to earth.

Discussion

63.	Which of the following types of kilns is also known as flame kiln?(a) Intermittent down-draught kiln(b) Intermittent up-draught kiln(c) Hoffman’s kiln(d) Bull’s trench kilnThe question was posed to me in a job interview.This interesting question is from Bricks topic in division Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» CORRECT option is (C) HOFFMAN’s KILN Best explanation: Hoffman’s kiln is also known as a flame kiln. It is constructed overground. Bricks of good quality are produced in this kiln SINCE they are burnt equally and evenly.

Discussion

64.	Polished terra-cotta is also known as _________(a) Porous terra-cotta(b) Sawdust terra-cotta(c) Faience(d) Perforated terra-cottaI had been asked this question in an online interview.This intriguing question comes from Clay Products in chapter Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» Correct answer is (C) Faience The best I can explain: Terra-cotta articles are of two types – porous terra-cotta and POLISHED terra-cotta. Polished terra-cotta is also known as faience or fine terra-cotta. It is AVAILABLE in a variety of colours.

Discussion

65.	Which of the following is not true about hydraulic lime?(a) Hydraulic lime consists of clay and some amount of ferrous oxide(b) Hydraulic lime can set under water(c) It has a perfectly white colour(d) It is also known as water limeThis question was addressed to me during an interview for a job.The doubt is from Lime in section Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» Right option is (c) It has a perfectly white colour Easiest explanation: Hydraulic LIME consists of clay and some AMOUNT of ferrous oxide. It can set under water and is also known as water lime. It does not have a perfect white colour due to which it appears LESS SANITARY than white lime or fat lime.

Discussion

66.	Fat lime slakes slowly while hydraulic lime slakes vigorously.(a) True(b) FalseThis question was posed to me during an interview.Query is from Lime in division Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» The correct answer is (b) False The explanation is: Fat lime slakes vigorously while hydraulic lime slakes slowly. Fat lime is USED to PREPARE MORTAR with SAND or surkhi while hydraulic lime is used to prepare mortar for THICK walls and damp places.

Discussion

67.	Which of the following is not a classification of glass?(a) Soda-lime glass(b) Potash-lead glass(c) Potash-lime glass(d) Soda-bromine glassThis question was addressed to me during an interview.My question comes from Glass topic in portion Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» Right choice is (d) Soda-bromine glass The BEST explanation: Glass can be mainly CLASSIFIED into three categories – soda-lime glass, potash-lead glass and potash-lime glass. Glass is AMORPHOUS, transparent or TRANSLUCENT and is a mixture of a number of metallic SILICATES.

Discussion

68.	First-class bricks are _______ while second class bricks are __________(a) Table-moulded, ground-moulded(b) Ground-moulded, table-moulded(c) Table-moulded, table-moulded(d) Ground-moulded, ground-mouldedI had been asked this question during an interview for a job.Question is taken from Bricks in division Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» The CORRECT answer is (a) Table-moulded, ground-moulded To explain: First class BRICKS are table-moulded while second class bricks are ground-moulded. The surface and EDGES of first-class bricks are sharp and STRAIGHT while the surface of second class bricks is SOMEWHAT rough.

Discussion

69.	Which of the following is not a quality of a good brick?(a) It should be well burnt in kilns(b) It should give a clear ringing sound when struck with another brick(c) It should be uniform in shape and should be sufficiently hard(d) It should have a high thermal conductivityI have been asked this question during an online interview.The origin of the question is Bricks topic in chapter Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer»

Discussion

70.	Which of the following substances is not used as a decolorizer in the manufacturing of glass?(a) Potassium carbonate(b) Antimony oxide(c) Cobalt oxide(d) Manganese dioxideThis question was addressed to me in an interview.This intriguing question originated from Glass topic in chapter Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» Correct answer is (a) Potassium carbonate To elaborate: Potassium carbonate is a raw material NEEDED to manufacture potash-lime glass and potash-lead glass. Decolorizers are SUBSTANCES which are added to glass in ADDITION to the raw materials in order to avoid any colouring effects DUE to the presence of iron compounds in the glass. Some of the examples of decolourisers are antimony OXIDE, manganese dioxide and cobalt oxide.

Discussion

71.	In the preparation of clay for manufacturing tiles, after making the selected clay free from impurities, it is converted into fine powder in a __________(a) Pugmill(b) Ball mill(c) Continuous kiln(d) Intermittent kilnI had been asked this question during an interview.This intriguing question originated from Clay Products in section Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» CORRECT choice is (a) Pugmill Explanation: In the preparation of clay for manufacturing TILES, after making the selected clay free from impurities, it is converted into fine powder in a PUG mill. Fine clay left after the WHOLE PROCESS is used to manufacture tiles.

Discussion

72.	Excess of iron oxide in the bricks makes them _________ in colour.(a) Red(b) Yellow(c) Dark blue(d) WhiteThe question was posed to me in exam.The question is from Bricks topic in division Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» The CORRECT answer is (c) Dark blue Explanation: Excess of iron oxide in the bricks makes them dark blue or blackish in colour. HOWEVER, if its quantity is comparatively LESS, the bricks will turn yellowish in colour.

Discussion

73.	Soda-lime glass is a mixture of ___________(a) Copper silicate and potassium silicate(b) Sodium silicate and calcium silicate(c) Aluminium silicate and potassium silicate(d) Magnesium silicate and potassium silicateI got this question in an online interview.This intriguing question originated from Glass in chapter Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» Right CHOICE is (b) Sodium silicate and calcium silicate The BEST I can explain: Soda-lime glass is made of calcium silicate with sodium silicate. Soda-lime glass is cheap and is readily FUSIBLE at RELATIVELY LOW temperatures.

Discussion

74.	Which of the following is a type of bricks prepared by hand moulding?(a) Ground-moulded bricks(b) Plastic clay bricks(c) Dry clay bricks(d) Wet clay bricksThe question was posed to me in a national level competition.The above asked question is from Bricks in division Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» The correct option is (a) Ground-moulded bricks For explanation I would SAY: There are two types of bricks prepared by hand moulding. These are ground-moulded bricks and table-moulded bricks. Moulding can ALSO be DONE by machines. These machines are MAINLY divided into two categories – dry CLAY machines and plastic clay machines.

Discussion

75.	The process of bringing clay to a proper degree of hardness is called _________(a) Blending(b) Weathering(c) Tempering(d) PuggingThe question was posed to me by my school principal while I was bunking the class.The origin of the question is Bricks topic in division Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» Correct CHOICE is (C) TEMPERING To explain: The PROCESS of bringing clay to a proper degree of hardness is called tempering. It is done in ORDER to obtain a homogeneous mass of clay and to make it fit for moulding.

Discussion

76.	Slaked lime is __________(a) Calcium oxide(b) Hydrated oxide of calcium(c) Calcium carbonate(d) Calcium silicateI got this question in an interview for internship.My query is from Lime in portion Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» The correct answer is (B) Hydrated oxide of calcium The best I can explain: SLAKED lime is the hydrated oxide of calcium. It is obtained by slaking of lime. Slaking is the process of adding a sufficient QUANTITY of water to QUICK lime to form a white powder called slaked lime.

Discussion

77.	Which of the following is not true about fibreglass?(a) Fibreglass is soft to touch(b) Fibreglass is flexible(c) Fibreglass readily absorbs water(d) Fibreglass is fire-proofI had been asked this question in my homework.The above asked question is from Glass in section Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» The CORRECT choice is (c) Fibreglass readily ABSORBS water Explanation: Fibreglass consists of minute GLASS rods. Fibreglass is fire-proof and SOFT to touch. This type of glass is flexible in nature. Also, it does not absorb water.

Discussion

78.	Which of the following types of glasses is also known as hard-glass?(a) Potash-lime glass(b) Soda-lime glass(c) Potash-lead glass(d) Common glassThis question was addressed to me during an interview.This interesting question is from Glass in portion Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» Correct option is (a) Potash-lime glass Easy explanation: Potash-lime glass is also KNOWN as hard-glass. It is also called Bohemian-glass. It is USED to manufacture combustion tubes and other glass ARTICLES which have to withstand high temperatures.

Discussion

79.	Which of the following is not a property of glass?(a) Glass can take up a high polish(b) Glass can absorb and refract light(c) Glass has a definite crystalline structure(d) Glass is available in many beautiful coloursThis question was addressed to me in quiz.The doubt is from Glass topic in division Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» Correct option is (C) Glass has a definite crystalline structure For explanation: Glass can take up a HIGH polish and can ABSORB and refract light. It does not have a definite crystalline structure. Glass is AVAILABLE in many BEAUTIFUL colours.

Discussion

80.	The minimum crushing strength of a brick is generally _________(a) 10 kg/cm^2(b) 20 kg/cm^2(c) 30 kg/cm^2(d) 35 kg/cm^2I have been asked this question in an online interview.The origin of the question is Bricks in portion Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» Correct ANSWER is (d) 35 kg/cm^2 Explanation: The minimum crushing STRENGTH of a brick is generally 35 kg/cm^2. It is found out by placing the brick in a COMPRESSION testing MACHINE and it is then pressed till it breaks.

Discussion

81.	The height of pugmill is about _________(a) 2 m(b) 6 m(c) 8 m(d) 12 mThe question was asked in unit test.This intriguing question comes from Bricks topic in section Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» RIGHT choice is (a) 2 m To explain: The height of PUGMILL is about 2 m. The diameter of pugmill at its top is about 1 m and that at the bottom is about 80 cm. The dept of the pugmill below the GROUND is about 60-80 cm.

Discussion

82.	Which of the following is also known as whiteware?(a) Earthenware(b) Stoneware(c) Rockware(d) PorcelainI got this question during an interview.The query is from Clay Products topic in section Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» Correct answer is (d) Porcelain Easy explanation: Porcelain is also known as whiteware since its colour is WHITE. The term porcelain is used to INDICATE an EARTHENWARE which is thin, white and semi-transparent. They are of two types – LOW voltage and high voltage porcelain.

Discussion

83.	Dried products formed after the drying process in the manufacturing of terra-cotta are burnt in _________(a) Blast furnace(b) Cupola furnace(c) Reverberatory furnace(d) Muffle furnaceI had been asked this question in semester exam.My question comes from Clay Products topic in section Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» RIGHT option is (d) Muffle furnace The best explanation: There are four different OPERATIONS involved in the manufacturing of terra-cotta. These are the PREPARATION of CLAY, MOULDING, drying and then burning. Dried products formed after the drying process in the manufacturing of terra-cotta are burnt in a muffle furnace.

Discussion

84.	The percentage of iron oxide in the clay taken to manufacture terra-cotta is ________(a) 1-3%(b) 5-8%(c) 12-15%(d) 17-20%I had been asked this question by my school principal while I was bunking the class.My doubt stems from Clay Products in chapter Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» The correct option is (B) 5-8% The best explanation: The percentage of iron oxide in the clay TAKEN to manufacture terra-cotta is 5-8%. HOWEVER, the proportion of lime should be about 1%.

Discussion

85.	Common glass is mainly a mixture of ___________(a) Calcium silicate, potassium silicate and copper silicate(b) Sodium silicate, iron silicate and calcium silicate(c) Aluminium silicate, potassium silicate and iron silicate(d) Magnesium silicate, potassium silicate and zinc silicateThis question was addressed to me by my college professor while I was bunking the class.Query is from Glass in section Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» Correct CHOICE is (B) SODIUM silicate, iron silicate and calcium silicate To explain I would SAY: Common glass is MAINLY a mixture of sodium silicate, iron silicate and calcium silicate. It is usually available in green, brown or yellow colour.

Discussion

86.	What is the correct order in which clay for bricks is prepared?(a) Cleaning, digging, tempering, weathering, unsoiling and blending(b) Digging, tempering, cleaning, weathering, unsoiling and blending(c) Tempering, digging, blending, weathering, cleaning and unsoiling(d) Unsoiling, digging, cleaning, weathering, blending and temperingThis question was posed to me in an interview for internship.The doubt is from Bricks in portion Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» The correct answer is (d) Unsoiling, digging, CLEANING, WEATHERING, BLENDING and tempering The explanation is: There are four different OPERATIONS INVOLVED in the process for the manufacturing of bricks. The correct order in which clay for bricks is prepared is unsoiling, digging, cleaning, weathering, blending and tempering.

Discussion

87.	The percentage of clay in zircon porcelain is about ________(a) 5-10%(b) 7-13%(c) 15-30%(d) 40-60%I got this question during an interview.Question is from Clay Products in division Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» Right ANSWER is (C) 15-30% The best I can explain: The percentage of clay in zircon porcelain is about 15-30%. It CONTAINS 45-60% zircon and 15-30% silicate of zircon. Zircon porcelain is used in the MANUFACTURING of spark PLUGS.

Discussion

88.	The number of Mangalore tiles required to cover 1 square metre of roof area is about ________(a) 5(b) 15(c) 25(d) 50The question was asked during an online exam.My enquiry is from Clay Products topic in chapter Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» The correct CHOICE is (b) 15 The best I can explain: The number of Mangalore tiles required to cover 1 square metre of roof area is about 15. Special Mangalore tiles are available for ridge, valley and hip portions of the roof.

Discussion

89.	Which of the following is not a property of fat lime?(a) It readily hardens(b) The colour of fat lime is perfectly white(c) Fat lime slakes vigorously(d) Fat lime sets slowly in the presence of airThis question was posed to me at a job interview.This question is from Lime in portion Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» Right ANSWER is (a) It readily hardens The BEST explanation: Fat lime is called so because it slakes vigorously. The COLOUR of the fat lime is perfectly white and it hardens very SLOWLY. Also, fat lime sets slowly in the presence of AIR.

Discussion

90.	Which of the following is used to prepare soluble glass?(a) Caustic soda(b) Magnesia(c) Lead dioxide(d) Quartz sandI got this question in an interview.I'm obligated to ask this question of Glass in chapter Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» Right choice is (d) QUARTZ sand To elaborate: To prepare soluble glass, quartz sand is melted and then it is grinded and thoroughly mixed with SODA ash, potassium CARBONATE or SODIUM sulphate. This type of glass is used to prepare acid-resistant CEMENT.

Discussion

Explore topic-wise InterviewSolutions in .

Common glass is also known as __________(a) Cup glass(b) Flask glass(c) Bottle glass(d) Furnace glassThis question was addressed to me during a job interview.I want to ask this question from Glass in division Glass, Lime, Clay Products & Bricks of Construction & Building Materials

The shape of Hoffman’s kiln is ______ in the plan.(a) Circular(b) Rectangular(c) Hexagonal(d) TrapezoidalI had been asked this question during an online interview.Origin of the question is Bricks topic in portion Glass, Lime, Clay Products & Bricks of Construction & Building Materials

Percentage of silica in good brick earth should be about _________(a) 10-15%(b) 20-35%(c) 50-60%(d) 80-90%The question was posed to me in an interview for internship.This key question is from Bricks topic in portion Glass, Lime, Clay Products & Bricks of Construction & Building Materials

Which of the following is an autoclave binding material?(a) Quick lime(b) Hydraulic lime(c) Gypsum(d) Lime-silicaThe question was asked in an interview for job.My question is based upon Lime topic in portion Glass, Lime, Clay Products & Bricks of Construction & Building Materials

Allahabad tiles, corrugated tiles and pantiles are all varieties of ________ tiles.(a) Drain(b) Roof(c) Floor(d) DoorThe question was posed to me in an online interview.Enquiry is from Clay Products in section Glass, Lime, Clay Products & Bricks of Construction & Building Materials

The chemical composition of quick lime is ____________(a) CaS(b) CaO(c) MgO(d) MgSThe question was posed to me during a job interview.This intriguing question comes from Lime topic in division Glass, Lime, Clay Products & Bricks of Construction & Building Materials

Potash-lead glass is also known as ____________(a) Flint glass(b) Bottle glass(c) Common glass(d) Soft glassThis question was posed to me in my homework.Enquiry is from Glass topic in section Glass, Lime, Clay Products & Bricks of Construction & Building Materials

Percentage of alumina in good brick earth should be about ________(a) 5-10%(b) 20-30%(c) 35-40%(d) 45-60%I have been asked this question in semester exam.The origin of the question is Bricks topic in section Glass, Lime, Clay Products & Bricks of Construction & Building Materials

Fat lime slakes slowly while hydraulic lime slakes vigorously.(a) True(b) FalseThis question was posed to me during an interview.Query is from Lime in division Glass, Lime, Clay Products & Bricks of Construction & Building Materials

Excess of iron oxide in the bricks makes them _________ in colour.(a) Red(b) Yellow(c) Dark blue(d) WhiteThe question was posed to me in exam.The question is from Bricks topic in division Glass, Lime, Clay Products & Bricks of Construction & Building Materials

Slaked lime is __________(a) Calcium oxide(b) Hydrated oxide of calcium(c) Calcium carbonate(d) Calcium silicateI got this question in an interview for internship.My query is from Lime in portion Glass, Lime, Clay Products & Bricks of Construction & Building Materials

The minimum crushing strength of a brick is generally _________(a) 10 kg/cm^2(b) 20 kg/cm^2(c) 30 kg/cm^2(d) 35 kg/cm^2I have been asked this question in an online interview.The origin of the question is Bricks in portion Glass, Lime, Clay Products & Bricks of Construction & Building Materials

The height of pugmill is about _________(a) 2 m(b) 6 m(c) 8 m(d) 12 mThe question was asked in unit test.This intriguing question comes from Bricks topic in section Glass, Lime, Clay Products & Bricks of Construction & Building Materials

Which of the following is also known as whiteware?(a) Earthenware(b) Stoneware(c) Rockware(d) PorcelainI got this question during an interview.The query is from Clay Products topic in section Glass, Lime, Clay Products & Bricks of Construction & Building Materials

The percentage of clay in zircon porcelain is about ________(a) 5-10%(b) 7-13%(c) 15-30%(d) 40-60%I got this question during an interview.Question is from Clay Products in division Glass, Lime, Clay Products & Bricks of Construction & Building Materials

The number of Mangalore tiles required to cover 1 square metre of roof area is about ________(a) 5(b) 15(c) 25(d) 50The question was asked during an online exam.My enquiry is from Clay Products topic in chapter Glass, Lime, Clay Products & Bricks of Construction & Building Materials

Which of the following is used to prepare soluble glass?(a) Caustic soda(b) Magnesia(c) Lead dioxide(d) Quartz sandI got this question in an interview.I'm obligated to ask this question of Glass in chapter Glass, Lime, Clay Products & Bricks of Construction & Building Materials