Description : The steel which contains fissures and cavities, is manufactured by (A) Cementation process (B) Crucible process (C) Bessemer process (D) Open hearth process
Last Answer : Answer: Option A
Description : The process of manufacturing steel by heating short lengths of wrought iron bars mixed with charcoal in fire clay crucibles and collecting the molten iron into moulds, is known as (A) Cementation process (B) Crucible process (C) Bessemer process (D) Open hearth process
Last Answer : Answer: Option B
Description : The process of decarbonising the pig iron completely and then adding proper percentage of carbon for manufacturing steel, is called (A) Cementation process (B) Crucible process (C) Bessemer process (D) Open hearth process
Description : Cast steel is manufactured by (A) Cementation process (B) Crucible process (C) Bessemer process (D) Open hearth process
Description : Pick up the correct statement from the following: (A) Steel produced by open hearth process is milder than that obtained by the Bessemer process (B) Engineers prefer open hearth steel ... is suitable for converting poor ore containing a large proportion of sulphur and phosphorus into steel
Last Answer : Answer: Option D
Description : Pick up the correct statement from the following: (A) In basic Bessemer process, the steel heats the converter (B) In open-hearth process, the furnace heats the steel (C) In Siemens process, the impurities of pig iron are oxidised by the oxygen of the ore (D) All the above
Description : Blister steel (A) Is obtained by cementation process (B) Is full of fissures and cavities (C) Can be easily welded (D) All the above
Description : The variety of pig iron used for the manufacture of steel by Bessemer process, is (A) Bessemer pig (B) Grey pig (C) White forge pig (D) Mottled pig
Description : The variety of pig iron used for manufacture of wrought iron, is (A) Bessemer pig (B) Grey or foundry pig (C) White forge pig (D) Mottled pig
Last Answer : Answer: Option C
Description : Bessemer process is used for the manufacture of (A) Pig iron (B) Cast iron (C) Wrought iron D) Steel
Description : Pig iron obtained from the furnace which is properly provided with fuel at a very high temperature, is called (A) Bessemer pig (B) Grey or foundry pig (C) White or forge pig (D) Mottled pig
Description : Neutral atmosphere is maintained in a/an __________ furnace. (A) Cold rolled steel coil annealing (B) Open hearth (C) Soaking pit (D) Walking beam reheating
Last Answer : (A) Cold rolled steel coil annealing
Description : For high grade instruments the steel preferred to, is (A) Cast steel (B) Bessemer steel (C) Mild steel (D) Whitworth compressed steel
Description : The steel used for the manufacture of rails, is (A) Bessemer steel (B) Mild steel (C) Cast steel (D) Stainless steel
Description : If the material of the base of the Casagrande liquid limit device on which the cup containing soil paste drops is softer than the standard hard rubber, then (A) The liquid limit of soil always increases ... (C) The liquid limit of soil may increase (D) The liquid limit of soil may decrease
Description : Thermal efficiency of an open hearth furnace may be about __________ percent. (A) 5 (B) 20 (C) 50 (D) 80
Last Answer : (B) 20
Description : In India the rails are manufactured by A. Open hearth process B. Duplex process C. Both A & B D. None of These
Last Answer : C [Both A & B]
Description : Material of construction of foundry crucible is (A) Lead (B) Stainless steel (C) Graphite
Last Answer : Option C
Description : Which furnace employs preheating, heating and soaking zones? (A) Soaking pit (B) Reheating furnace (C) Open hearth furnace (D) Cupola
Last Answer : (B) Reheating furnace
Description : Regenerators are normally provided in the (A) Glass melting furnace (B) Open hearth furnace (C) By product coke ovens (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Regenerators are installed in (A) Coke ovens (B) Open hearth furnace (C) Both (A) & (B) (D) Neither (A) nor (B)
Last Answer : (C) Both (A) & (B)
Description : __________ is an indirectly heated furnace. (A) Open hearth furnace (B) Muffle furnace (C) Soaking pit (D) Reheating furnace
Last Answer : (B) Muffle furnace
Description : Which of the following is not a directly fired furnace? (A) By-product coke oven (B) Calcination kiln (C) Sintering furnace (D) Open hearth furnace
Last Answer : (A) By-product coke oven
Description : An example of recuperative furnace is the (A) Soaking pit (B) Open hearth furnace (C) Coke ovens (D) None of these
Last Answer : (A) Soaking pit
Description : Which is a regenerative furnace? (A) Coke oven heating chamber (B) Open hearth furnace (C) Both (A) and (B) (D) Neither (A) nor (B)
Last Answer : (C) Both (A) and (B)
Description : Which is not a hearth furnace? (A) Glass tank furnace (B) Open hearth furnace (C) Cupola
Last Answer : (C) Cupola
Description : For light and ornamental casting, the most unsuitable pig iron, is (A) Bessemer pig (B) Grey or foundry pig (C) White or forge pig (D) Mottled pig
Description : If the furnace is provided with insufficient fuel at low temperatures, the type of pig iron produced, is called (A) Bessemer pig (B) Grey or foundry pig (C) White or forge pig (D) Mottled pig
Description : Pig iron made from haematite ores free from sulphur, phosphorus and copper, is known as (A) Bessemer pig (B) Grey or foundry pig (C) White or forge pig (D) Mottled pig
Description : If temporary cementation is required, which cement will you use: A. ZOE B. Zinc Polycarboxylate C. GIC
Last Answer : A. ZOE
Description : Define cementation. Describe sherardizing with help of neat labeled diagram
Last Answer : Cementation: Cementation is the process in which metal coatings are obtained by heating the base metal in a revolving drum containing a powder of the coating metal. Process: i) The iron articles ... iron forming Fe - Zn alloy at the surface which protects iron surface from corrosion.
Description : Define Cementation. Name its types.
Last Answer : Cementation: It is the process of heating the base metal in a revolving drum containing a powder of coating metal. Types: i) Sherardizing ii) Chromizing iii) Colorizing
Description : (i) Copper - Bessemer converter (ii) Iorpn- Blastfurnace (iii) chromium - Aluminothermic process (iv) Tin - Carbon reducaton (v) Zinc -Belgian process
Last Answer : (i) Copper - Bessemer converter (ii) Iorpn- Blastfurnace (iii) chromium - Aluminothermic process (iv ... data how many of them are correctly matched ?
Description : How did the Bessemer process lead to a boom in the railroads?
Last Answer : What is the answer ?
Description : In the acid Bessemer process, the hot metal should have the following composition. (A) S < 0.05% and P < 0.05% (B) S < 0.05% and P < 1.5% (C) S < 0.05% and P > 1.5% (D) S > 1.5% and P < 0.05%
Last Answer : (A) S < 0.05% and P < 0.05%
Description : Why are socks softer and smoother on the outside than on the inside?
Last Answer : answer:I haven't noticed this - maybe it's you. I wear mostly Gold Toe fluffy socks - they're smooth inside and out. My sweat socks - don't remember what brand name they are, one of the ... and out. So I honestly haven't experienced the issue you are complaining about. Where do you get your socks?
Description : What's softer? The palms of your hands, or the soles of your feet?
Last Answer : answer:Not for me it wouldn't; years of walking barefoot as often as possible have made my feet tough and calloused. You ^think* your hand are tough, because you can hold a sharp pebble or a ... . But consider how different it would feel if you were doing a handstand on it with your full weight.
Description : Trying to replicate my grandma's meatballs... how do I make them softer?
Last Answer : More fat.
Description : How to make my afro-hair softer and smooth?
Last Answer : I know folks who have used fabric softener instead of conditioner. Don’t know what products they used afterward.
Description : Why are my older Crocs softer than my newer ones?
Last Answer : I have noticed the same degradation with Clark's sandals. I love my older ones and just returned the same model due to harder soles and difficult adjustment w. the straps. The outsourcing explains it all, ... and is comfortable for more than 5 minutes. I'm no help with repairing your Crocs. Sorry.
Description : Why is the skin underneath my eyes softer and different from the rest of my face's skin?
Last Answer : I would imagine it has something to do with the fact that it is much more vascularized that the rest of the face. There are a lot more blood vessels closer to the surface of the skin there (hence why you get dark circles when you haven't slept much)
Description : What can I add to the clay soil in my garden that will help it become softer or less chunky?
Last Answer : Need Answer
Description : I repeat only the last word you say. The more I repeat, the softer I got. I cannot be seen but can be heard. What am I? -Riddles
Last Answer : An Echo.
Description : ARE SOFTER THAN Apatite?
Last Answer : IDC
Description : How to Make Softer Cookie Dough For a Cookie Press?
Last Answer : A baking tool to make formed cookies is called a cookie press.The cookie press can either be manual or electric. It consists of atube to place the cookie dough, a stencil at one end to shape thecookies ... dough too long, you may end upwith dough that is too hard to manipulate and work with the pr
Description : Is it a good idea to make an office desk out of a softer wood like pine?
Last Answer : It is not a good idea to make an office desk out of a soft wood like pine, as they are more susceptible to dings and scratches. However, if you are looking to make an office desk that has a weathered, antique appearance, a softer wood would be a good idea.
Description : Why is graphite softer than diamond?
Last Answer : The crystalline structure of graphite and diamond are very different.
Description : Which one of the following statements is NOT correct? [IAS 2003] (a) Black cotton soil of north-west India was formed by the weathering of basaltic lava rocks (b) Sedimentary rocks are distinguished ... feldspar and mica in it (d) A metamorphic rock is softer and less compact than its original type
Last Answer : Ans: (d)