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
mechanical engineering engineering materials
1. Free carbon in iron makes the metal
(A): hard and gives a coarse grained crystalline structure
(B): hard and gives a fine grained crystalline structure
(C): soft and gives a coarse grained crystalline structure
(D): soft and gives a fine grained crystalline structure
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->An electronic device makes a beep after 60 sec.Another device makes a beep after ever 62sec.They beeped together at 10am.The time when they will next make a beep together at the earliest,is....
QA->If a non-metal is added to the interstitial sites of a metal, then the metal becomes?....
QA->Radio Carbon (carbon -14) has a half life of?....
QA->India’s first carbon-free state?....
QA->When an iron nail gets rusted, iron oxide is formed?....
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->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->Free carbon in iron makes the metal....
MCQ->Combined carbon in iron makes the metal....
MCQ->Consider the following statements regarding tensile test diagrams for carbon steel with varying carbon contents : As the carbon content increases 1. the ultimate strength of steel decreases 2. the elongation before fracture increases 3. the ductility of the metal decreases 4. the ultimate strength increases. Of these statements :....
×
×
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