When iron is heated to 1300C, ?->(Show Answer!)

Warning: implode(): Invalid arguments passed in /www/wwwroot/jobquiz.info/mdiscuss.php on line 336
When iron is heated to 1300C, ?->(Show Answer!)

Question Set

1. When iron is heated to 1300C,

Ask Your Doubts Here

Comments

Show Similar Question And Answers

QA->When an iron nail gets rusted, iron oxide is formed?....

QA->What does mixture of CS2 and H2 S on passing over heated copper give?....

QA->In vulcanisation; with which the natural rubber is heated?....

QA->When water is heated from degree C to 20 degree C; how does its volume change?....

QA->A metal plate with a circular hole at the centre is heated. What will happen to the area of the hole?....

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->When iron is heated to 1300C,....

MCQ->Which of the following pairs are correctly matched ? 1. Alpha iron....non magnetic 2. Beta iron....strongly magnetic 3. Gamma iron....non-magnetic and capable of dissolving carbon. 4. Delta iron....non-magnetic and absorbs very little carbon. Select the correct answer using the codes given below :....

MCQ->Consider the following statements : In water supply distribution network, 1. the grid-iron system requires more length of pipe lines and larger number of cut-off valves. 2. the design of the grid-iron system is difficult but economical. 3. employing a grid-iron system, the dead ends are completely eliminated. 4. employing a grid-iron system permits more water to be diverted towards the affected point from various directions. Which of the statements given above are correct ?....

MCQ->When a semiconductor bar is heated at one end, a voltage across the bar is developed. If the heated is positive the semiconductor is....

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