Question Set

1. Metals when they are heated?





Ask Your Doubts Here

Type in
(Press Ctrl+g to toggle between English and the chosen language)

Comments

Show Similar Question And Answers
QA->Metals .......... when they are heated....
QA->The scientist who classified elements into Metals and Non-metals is?....
QA->Elements showing properties of both metals and non-metals are?....
QA->Who Classified Elements as Metals and non-metals?....
QA->The study of metals and the overall process by which metals are extracted from its ores are called?....
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->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:....
MCQ->Which of the following are benefits of VLANs? They increase the size of collision domains. They allow logical grouping of users by function. They can enhance network security. They increase the size of broadcast domains while decreasing the number of collision domains. They simplify switch administration. They increase the number of broadcast domains while decreasing the size of the broadcast domains.....
MCQ->Four balls of the same mass, but made of different metals, are exposed to sunlight. Which one of the balls made of the following metals will get heated most?....
MCQ->S1: The study of speech disorders due to brain injury suggests that patients can think without having adequate control over their language. P : But they succeed in playing games of chess. Q : Some patients, for example fail to find the names of objects presented to them. R : They can even use the concepts needed for chess playing, though they are unable to express many of the concepts in ordinary language. S : They even find it difficult to interpret long written notices. S6: How they manage to do this we do not know. The Proper sequence should be:....
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