Toggle navigation
Home
KPSC Previous Question Papers
Article Category
kerala psc
upsc
General
Popular Pages
Multiple Choice Question in aptitude-area
Multiple Choice Question in non-verbal-reasoning-grouping-of-images
Multiple Choice Question in aptitude-compound-interest
Multiple Choice Question in engineering-mechanics-kinetics-of-a-particle-impulse-and-momentum
Multiple Choice Question in database-database-redesign
Multiple Choice Question in 035/2016
Question Answer in malayalam-kerala-psc-questions
Multiple Choice Question in malayalam-kerala-psc-questions
Multiple Choice Question in current-affairs-2017-03-05
Multiple Choice Question in electronic-devices-bipolar-junction-transistors
Question Answer in Malayalam General Knowledge
Question Answer Bank
Multiple Choice Question Bank
Question Answer Category
Multiple Choice Question Category
Home
->
Multiple Choice Questions
Question Set
chemical engineering chemical engineering basics
1. Electrometallurgical methods of metal extraction is normally used for those metals
(A): all (a), (b) & (c).
(B): which fall in the category of alkali & alkaline earth metals.
(C): which stands higher in the electrochemical series of the metal.
(D): whose oxide/ore is not reduced by carbon.
Previous Question
Show Answer
Next Question
Add Tags
Report Error
Show Marks
Ask Your Doubts Here
Type in
(Press Ctrl+g to toggle between English and the chosen language)
Post reply
Comments
Show Similar Question And Answers
QA->Which scientific method is used for the production/extraction of Noble metals?....
QA->Which pair of metals constitutes the lightest metal and the heaviest metal; respectively?....
QA->Which pair of metals constitutes the lightest metal and the heaviest metal, respectively?....
QA->The process of extraction of metals from their ores; and then refining them for use is known as?....
QA->If a non-metal is added to the interstitial sites of a metal, then the metal becomes?....
MCQ->Electrometallurgical methods of metal extraction is normally used for those metals....
MCQ->The simplest method of welding two pieces of metal together is known as pressure welding.The ends of a metal are heated to a white heat-for iron,the welding temperature should be about 1300C-in a flame.At this temperature the metal becomes plastic.The ends are pressed or hammered together,and the joint is smoothed off.Care must be taken to ensure that surfaces are thoroughly clean first,for dirt will weaken the weld.Moreover,the heating of iron or steel to a high temperature cause oxidation,and a film of oxide is added to the heated surfaces.For this reason,flux is applied to the heated metal.At welding heat,flux melts and the oxide particles are dissolved in it together with any other impurities which may be present.The metal surfaces are pressed together,and the flux is squeezed out from the center of the weld.A number of different types of weld may be used,but for fairly thick bars of metals,a vee-shaped belt should be normally employed.It is rather stronger than ordinary butt weld. The simplest way of welding two pieces of metal together is....
MCQ->In which of the following should the methods of a class differ if they are to be treated as overloaded methods? Type of arguments Return type of methods Number of arguments Names of methods Order of arguments....
MCQ->(1) Some women are those who are successful in life. (2) Some men are those who have patience. (3) No man is a woman. (4) All those who have patience are successful in life. (5) Some who are successful in life are men. (6) Some men are not those are successful in life.....
MCQ->S1: Metals are today being replaced by polymers in many applications. P : Above all, they are cheaper and easier to process making them a viable alternative to metals. Q : Polymers are essentially a long chains of hydrocarbon molecules. R : Today polymers as strong as metals have been developed. S : These have replaced the traditional chromium-plated metallic bumpers in cars. S6: Many Indian Institutes of science and Technology run special programmes on polymer science. The Proper sequence should be:....
×
×
Type The Issue
×
Your Marks
Terms And Service:We do not guarantee the accuracy of available data ..We Provide Information On Public Data.. Please consult an expert before using this data for commercial or personal use | Powered By:Omega Web Solutions
© 2002-2017 Omega Education PVT LTD...
Privacy
|
Terms And Conditions
Question ANSWER With Solution