Heat resistant variety of glass is— (1) Pyrex glass (2) Hard glass (3) Flint glass (4) None of these

Heat resistant variety of glass is— (1) Pyrex glass (2) Hard glass (3) Flint glass (4) None of these
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 Flint glass
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Which variety of glass is heat resistant? (1) Hard glass (2) Flint glass (3) Pyrex glass (4) Bottle glas

Description : Which variety of glass is heat resistant? (1) Hard glass (2) Flint glass (3) Pyrex glass (4) Bottle glas

Last Answer : (3) Pyrex glass Explanation: Older clear-glass Pyrex manufactured by Corning, Arc International's Pyrex products, and Pyrex laboratory glassware are made of borosilicate glass.

Which variety of glass is heat resistant? A. Bottle glass B. Flint glass C. Hard glass D. Pyrex glass (Answer)

Description : Which variety of glass is heat resistant? A. Bottle glass B. Flint glass C. Hard glass D. Pyrex glass (Answer)

Last Answer : D. Pyrex glass (Answer)

Commonly used glass is known as the __________ glass. (A) Flint (B) Hard (C) Pyrex (D) Soda

Description : Commonly used glass is known as the __________ glass. (A) Flint (B) Hard (C) Pyrex (D) Soda

Last Answer : (D) Soda

Which type of glass is used for making glass reinforced plastic? (1) Pyrex glass (2) Flint glass (3) Quartz glass (4) Fibre glass

Description : Which type of glass is used for making glass reinforced plastic? (1) Pyrex glass (2) Flint glass (3) Quartz glass (4) Fibre glass

Last Answer : (4) Fibre glass Explanation: Fiberglass is a lightweight, extremely strong, and robust material. Although strength properties are somewhat lower than carbon fiber and it is less stiff, the material ... also very favorable when compared to metals, and it can be easily formed using molding processes.

Which type of glass is used for making glass reinforced plastic? (1) Pyrex glass (2) Flint glass (3) Quartz glass (4) Fibre glass

Description : Which type of glass is used for making glass reinforced plastic? (1) Pyrex glass (2) Flint glass (3) Quartz glass (4) Fibre glass

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Lens is made up of – (1) Pyrex glass (2) Flint glass (3) Ordinary glass (4) Cobalt glass

Description : Lens is made up of – (1) Pyrex glass (2) Flint glass (3) Ordinary glass (4) Cobalt glass

Last Answer : (2) Flint glass Explanation: Flint glass is optical glass that has relatively high refractive index and low Abbe number (high dispersion). A concave lens of flint glass is commonly ... doublet lens because of their compensating optical properties, which reduces chromatic aberration (colour defects).

Which one of the following is used for sun glasses? (1) Pyrex glass (2) Flint glass (3) Crooks glass (4) Crystal glass

Description : Which one of the following is used for sun glasses? (1) Pyrex glass (2) Flint glass (3) Crooks glass (4) Crystal glass

Last Answer : (3) Crooks glass Explanation: A type of glass that contains cerium and other rare earths and has a high absorption of ultraviolet radiation is used in sunglasses. Sunglasses or sun glasses ... as variously termed spectacles or glasses exist, featuring lenses that are coloured, polarized or darkened.

Electric bulbs are made of __________ glass. (A) Jena (B) Flint (C) Crookes (D) Pyrex

Description : Electric bulbs are made of __________ glass. (A) Jena (B) Flint (C) Crookes (D) Pyrex

Last Answer : (B) Flint

Superior quality laboratory apparatus is made of the __________ glass having low thermal co-efficient of expansion & high chemical resistance. (A) Flint (B) Soda (C) Pyrex (D) Potash

Description : Superior quality laboratory apparatus is made of the __________ glass having low thermal co-efficient of expansion & high chemical resistance. (A) Flint (B) Soda (C) Pyrex (D) Potash

Last Answer : (C) Pyrex

The type of high refractive index glass used in optical instruments is __________ glass. (A) Pyrex (B) Flint (C) Crookes (D) None of these

Description : The type of high refractive index glass used in optical instruments is __________ glass. (A) Pyrex (B) Flint (C) Crookes (D) None of these

Last Answer : (B) Flint

Basic oxide is absent in __________ glass. (A) Flint (B) Pyrex (C) Quartz (D) All (A), (B) & (C)

Description : Basic oxide is absent in __________ glass. (A) Flint (B) Pyrex (C) Quartz (D) All (A), (B) & (C)

Last Answer : (C) Quartz

__________ glass is used for the manufacture of optical glass. (A) Pyrex (B) Soda (C) Flint (D) Crooke's

Description : __________ glass is used for the manufacture of optical glass. (A) Pyrex (B) Soda (C) Flint (D) Crooke's

Last Answer : (C) Flint

Lens is made up of (1) Pyrex glass(2) Flint glass (3) Ordinary glass (4) Cobalt glass

Description : Lens is made up of (1) Pyrex glass(2) Flint glass (3) Ordinary glass (4) Cobalt glass

Last Answer : Flint glass

Which one of the following is used for sun glasses ? (1) Pyrex glass (2) Flint glass (3) Crooks glass (4) Crystal glass

Description : Which one of the following is used for sun glasses ? (1) Pyrex glass (2) Flint glass (3) Crooks glass (4) Crystal glass

Last Answer : Crooks glass

__________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant. (A) Pyrex (B) Soda lime (C) Lead (D) High silica

Description : __________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant. (A) Pyrex (B) Soda lime (C) Lead (D) High silica

Last Answer : (A) Pyrex

Which variety of glass is heat resistant? -Do You Know?

Description : Which variety of glass is heat resistant? -Do You Know?

Last Answer : answer:

Which variety of glass is heat resistant?

Description : Which variety of glass is heat resistant?

Last Answer : Pyrex glass

Which of the following is responsible for the extra strength of pyrex glass? (1) Potassium Carbonate (2) Lead Oxide (3) Borax (4) Ferric Oxide

Description : Which of the following is responsible for the extra strength of pyrex glass? (1) Potassium Carbonate (2) Lead Oxide (3) Borax (4) Ferric Oxide

Last Answer : (3) Borax Explanation: Older clear-glass Pyrex manufactured by Corning before 1998, Arc International's Pyrex products, and Pyrex laboratory glassware is made of borosilicate glass. According ... glass cookware manufactured by World Kitchen is made of tempered sodalime glass instead of borosilicate.

Which of the following is responsible for the extra strength of pyrex glass ? (1) Potassium Carbonate (2) Lead Oxide (3) Borax (4) Ferric Oxide

Description : Which of the following is responsible for the extra strength of pyrex glass ? (1) Potassium Carbonate (2) Lead Oxide (3) Borax (4) Ferric Oxide

Last Answer : Borax

Is pyrex just tempered glass, or is there anything else in it?

Description : Is pyrex just tempered glass, or is there anything else in it?

Last Answer : The heat resistant quality

Which one of the following types of glass can cut off ultraviolet rays? (1) Soda glass (2) Pyrex glass (3) Jena glass (4) Crookes glass

Description : Which one of the following types of glass can cut off ultraviolet rays? (1) Soda glass (2) Pyrex glass (3) Jena glass (4) Crookes glass

Last Answer : (4) Crookes glass Explanation: In this glass mainly cerium oxide (CiO2) is present which sharply absorbs the ultraviolet rays from the sunlight so utilized in making lenses of eye glasses.

Which of the following is responsible for extra strength of Pyrex glass?

Description : Which of the following is responsible for extra strength of Pyrex glass?

Last Answer : Borax

The glass known as Pyrex?

Description : The glass known as Pyrex?

Last Answer : Borosilicate glass

Centrifugal pump made of pyrex or glass can't be used to pump (A) Milk and fruit juices (B) Alkaline solutions (C) Dilute H2SO4 at room temperature (D) Brine

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Last Answer : (B) Alkaline solutions

Sudden temperature fluctuation does not affect pyrex glass, because of its (A) Low co-efficient of expansion (B) High co-efficient of expansion (C) High melting point (D) Both (B) and (C)

Description : Sudden temperature fluctuation does not affect pyrex glass, because of its (A) Low co-efficient of expansion (B) High co-efficient of expansion (C) High melting point (D) Both (B) and (C)

Last Answer : (A) Low co-efficient of expansion

The main component of Pyrex glass is (A) Zinc (B) Lead (C) Boron (D) Selenium

Description : The main component of Pyrex glass is (A) Zinc (B) Lead (C) Boron (D) Selenium

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The refractive indices for lights of violet, yellow and red colours for a flint glass prism are respectively 1.632, 1.620 and 1.613. Find the dispersi

Description : The refractive indices for lights of violet, yellow and red colours for a flint glass prism are respectively 1.632, 1.620 and 1.613. Find the dispersi

Last Answer : The refractive indices for lights of violet, yellow and red colours for a flint glass prism are ... Find the dispersive power of the prism material.

Why addition of flint and quartz to molten glass does not shrink or get transformed?

Description : Why addition of flint and quartz to molten glass does not shrink or get transformed?

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Major component of flint glass is (A) Lead oxide (B) Silica (C) Alumina (D) Soda

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Last Answer : (A) Lead oxide

Flint glass (A) Has slightly the greater refracting power than crown glass (B) Has roughly double refracting power than that of crown (C) And crown glass proportions yield the required focal length and neutralise the dispersion produced by the convex lens at the emergence from the concave (D) All the above

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Last Answer : (D) All the above

A pyrex tumbler does not crack when hot water is poured into it because pyrex (a) is a strong material (b) does not expand much on heating (c) is a good conductor of heat (d) expands equally from inside and outside

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Which of the following is resistant to the action of both heat & chemicals? (A) Borosilicate glass (B) Silica glass (C) Soda lime glass (D) None of these

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