Mention the steps involved in the manufacture of glass.

1 Answer

Answer :

a) Melting

b) Shaping

c) Annealing

d) Finishing

Related questions

Description : Mention the steps involved in the manufacture of paper.

Last Answer : a) Pulping b) Mixing additives c) Drying d) Finishing

Description : What is resource planning ? Mention the steps which are involved in resource planning. -SST 10th

Last Answer : Resource planning is a technique or skill of proper utilisation of resources. As the resources are limited and unevenly distributed over the country their planning is essential. Resource planning ... stage is related to action-oriented planning which emphasises use and reuse of the sources.

Description : Arrange the following steps to form a basic Engineering  Process Model. i. Test ii. Design iii. Install iv. Specification v. Manufacture vi. Maintain a) 2, 4, 5, 1, 6, 3 b) 4, 2, 5, 1, 3, 6 c) 2, 4, 5, 1, 3, 6 d) 4, 2, 5, 1, 6, 3

Last Answer : a) 2, 4, 5, 1, 6, 3

Description : The contact process is involved in the manufacture of - (1) Nitric acid (2) Sulphuric acid (3) Ammonia (4) Caustic soda

Last Answer : (2) Sulphuric acid Explanation: It is also a central substance in the chemical industry. It is widely produced by contact process. Now days, sulphuric acid is prepared by contact process all over ... process is based upon the catalytic oxidation of sulfur dioxide (SO2) to sulfur trioxide (SO3).

Description : In step growth polymerisation, generally only one type of reaction & some basic mechanism is involved. Step growth polymerisation reaction is not involved in the manufacture of (A) Cross linked polystyrene (B) Phenol formaldehyde resins (C) Polyesters (D) Polyamides

Last Answer : (A) Cross linked polystyrene

Description : A chain growth polymerisation reaction consists of three different types of reaction namely initiation reaction, propagation reaction & termination reaction. Chain growth polymerisation reaction is not involved ... Siloxane elastomers (B) Polyamides (C) Vinyl polymers (D) Urea-formaldehyde resins

Last Answer : (D) Urea-formaldehyde resins

Description : Condensation polymerisation is not involved in the manufacture of (A) Teflon (B) Polythene (C) Terylene (D) Nylon

Last Answer : (B) Polythene

Description : Addition polymerisation is not involved in the manufacture of (A) Low density polythene (B) Poly vinyl chloride (C) Polystyrene (D) Polyhexamethylene adipamide

Last Answer : (D) Polyhexamethylene adipamide

Description : During manufacture of glass, molten glass is cooled slowly to make it

Last Answer : lose brittleness.

Description : The substance added to decolourise the glass articles during manufacture of glass is

Last Answer : Manganese dioxide.

Description : The gaseous product released during the manufacture of soda glass is

Last Answer : carbon dioxide.

Description : During manufacture of glass,

Last Answer : cullets are used to increase the fusibility.

Description : The raw materials used in glass manufacture are

Last Answer : soda ash, lime stone and sand.

Description : What is the role of feldspar in the manufacture of glass?

Last Answer : When feldspar is added, glass will have a smoother glossy finish. It also adds strength to the ceramic articles.

Description : What property of safety glass is made use in manufacture of windshield of automobiles?

Last Answer : Safety glass does not form sharp edges when broken. This property is used in manufacture of windshields of automobiles and aeroplanes.

Description : What is the role of borax or aluminium powder in the manufacture of glass?

Last Answer : The function of borax / aluminium powder is to remove the air bubbles in glass.

Description : What is the role of the following in the manufacture of glass? a) Cullets b) Manganese dioxide

Last Answer : a) Cullets are added to increase the fusibility. b) Manganese dioxide is added to decolourise & remove ferrous compounds and carbon.

Description : Why are broken glass pieces or cullets added during the manufacture of glass?

Last Answer : Pieces of broken glass are added to increase fusibility and to recycle broken glass pieces.

Description : Name the raw materials required for the manufacture of glass.

Last Answer : a) Soda Ash (Na 2 CO 3 ) b) Lime stone (CaCO 3 ) c) Sand (SiO 2 ) d) Broken pieces of glass (Cullets)

Description : Which of the following is used for removing air bubbles from glass during its manufacture? (1) Fledspar (2) Arsenic oxide (3) Potassium Carbonate (4) Soda Ash

Last Answer : (2) Arsenic oxide

Description : Raw materials used for the manufacture of glass are – (1) sand, soda, limestone (2) sand, charcoal, soda (3) limestone, charcoal, sulphur (4) sand, sulphur, soda

Last Answer : (1) sand, soda, limestone Explanation: Quartz sand (silica) is the main raw material in commercial glass production. While fused quartz (primarily composed of SiO2) is used for some special ... over 1200 degree C (2192 degree F). Normally, other substances are added to simplify processing.

Description : Addition of stabiliser during PVC manufacture is done to (A) Improve its impact strength (B) Improve its elasticity (C) Reduce the melt viscosity & glass transition temperature (D) Prevent its thermal degradation

Last Answer : (D) Prevent its thermal degradation

Description : The chlorinator used in the manufacture of DDT is made of (A) Glass (B) Glass lined steel (C) Teflon (D) Bakelite

Last Answer : (B) Glass lined steel

Description : Pot furnace which is either regenerative or recuperative, is used in the manufacture of (A) Glass (B) Stainless steel (C) Potteries (D) Refractory bricks

Last Answer : (A) Glass

Description : Dense soda ash used in the manufacture of glass, is chemically represented by (A) Na2CO3 (B) Na2CO3 .10H2O (C) Na2CO3 .H2O (D) Na2HCO3

Last Answer : (C) Na2CO3 .H2O

Description : Co-efficient of thermal expansion of glass is decreased by the addition of __________ during its manufacture. (A) CaO (B) MnO2 (C) ZnO (D) FeS

Last Answer : (C) ZnO

Description : Pick out the wrong statement. (A) Hard glass which is used for making laboratory glass wares is a mixture of sodium borosilicate and aluminium borosilicate (B) Glass is decolorized during its manufacture by ... Na2O . CaO . 6SiO2 (D) Red color is imparted to glass by addition of arsenic oxide

Last Answer : (D) Red color is imparted to glass by addition of arsenic oxide

Description : Which of the following is not a raw material used for the manufacture of ordinary glass? (A) Iron oxide (B) Soda ash (C) Limestone (D) Silica

Last Answer : (A) Iron oxide

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

Last Answer : (C) Flint

Description : Zeolite is used in the (A) Water treatment (B) Glass manufacture (C) Hydrogenation of fatty oil as a catalyst (D) Development of exposed photographic plate

Last Answer : (A) Water treatment

Description : The ultrapure glass used to manufacture optical fibers is approximately ___pure ∙ a. 99.9 % ∙ b. 99.99 % ∙ c. 99.999 % ∙ d. 99.9999 %

Last Answer : d. 99.9999 %

Description : Raw materials used for the manufacture of glass are (1) sand, soda, limestone (2) sand, charcoal, soda (3) limestone, charcoal, sulphur (4) sand, sulphur, soda 

Last Answer : sand, soda, limestone

Description : State general steps involved in metallurgy of a metal. -Science

Last Answer : The general steps of metallurgy are : Concentration of ore. Reduction of the metal compound. Refining of metal.

Description : Define process of nuclear fission. Writ the steps involved in generating electricity in a nuclear reactor. -Science

Last Answer : Nuclear Fission: The process in which a heavy nucleus (such as uranium, plutonium or thorium) is broken into two nearly equal fragments when bombarded with low-energy neutrons and a tremendous ... turbines producing electricity.The steam cools back into water, which can then be used over again.

Description : Explain the steps involved in saponification.

Last Answer : Saponification is the reaction that takes place between oil and sodium hydroxide during the manufacture of soap. The steps involved are: 1) Hydrolysis of fats or oil into carboxylic acid and glycerol. 2) Neutralization of the fatty acid by sodium hydroxide.

Description : What are the steps involved in seed germination?

Last Answer : answer:Different plants have evolved different germination mechanisms. In general, though, there will be some way of restraining germination while the seed is still in the fruit. In some cases, ... the germination happens only when there is sufficient water in the environment to sustain the sprout.

Description : What are some good examples of situations that involved going one step forward, two steps back?

Last Answer : Credit cards.

Description : What are the steps involved in the complex process of resource planning? -SST 10th

Last Answer : Resource planning is a complex process which involves : (i) Identification of resources across the country through surveying, mapping and preparation of inventory of resources through their quantitave ... goals of resource planning right from the First Five Year Plan launched after Independence.

Description : 10.(a) An ore on treatment with dilute hydrochloric acid produces brisk effervesces. What type of ore is this? What steps will be required to obtain metal from the enriched ore. , (b) ... in coin and colour of the solution ? Write balanced chemical equation of the reaction involved. -Chemistry

Last Answer : (a) Carbonate ore: (i) Calcination: Carbonate ore is heated in limited supply of air and oxide is obtained, e.g. (b) Copper, being more reactive than silver will displace silver from silver nitrate ... and there will be deposition of silver on copper coin. The colour of solution will turn to blue.

Description : Which feature is provided by Word to customise the look of a custom shape? Write down the steps involved. -Technology

Last Answer : Drawing Custom ShapesBy using the three freehand drawing tools, i.e. Curve, Freeform and Scribble desired shapes can be created.Curve lets you draw shapes that have different curves. Freeform lets you draw ... your object, to turn off Edit Points, click anywhere on the page outside of the shape.

Description : List the steps involved in rDNA technology. -Biology

Last Answer : answer:

Description : Steps involved in PCR (Polymerase Chain Reaction) process. -Biology

Last Answer : Step 1 DNA isolation.Step 2 Primer design.Step 3 Enzyme selection.Step 4 Thermal cycling.Step 5 Amplicon analysis.

Description : Briefly describe various steps involved in plant breeding. -Biology

Last Answer : The four steps are: (1) Creation of genetic variation by various means (2) Selection (3) Evaluation and Release as a variety and (4) Seed multiplication and distribution among farmers.

Description : What are the steps involved in Erythropoiesis? -Biology

Last Answer : answer:

Description : Explain the various steps involved in production of insulin. -Biology

Last Answer : answer:

Description : What are the main steps that are involved in the hybridization process? -Biology

Last Answer : answer:

Description : What are the main steps that are involved in the hybridization process? -Biology

Last Answer : answer:

Description : Which of the following steps not involved in respiration `:-`

Last Answer : Which of the following steps not involved in respiration `:-` A. Diffusion of gases across alveolar ... reactions and resultant release of `CO_(2)`.

Description : Match the reactions in Column I with appropriate types of steps/reactive intermediate involved in these reactions as given in Column II.

Last Answer : Match the reactions in Column I with appropriate types of steps/reactive intermediate involved in these reactions as given in Column II.