Engineinside

Objective Questions and Solutions, Mechanical/Production (a) Manufacturing is the process of converting raw material into ______Finished Product_____ (b) The ductility of a piece of chalk is ____approx. zero_______ Answers are marked bold (c) The % of carbon in...

Grinding : Abrasives, Grit, Classification of wheels, Bond and Grade The grinding process is capable of producing very accurate sizes, equally accurate geometry like flatness or circularity and extremely good surface finish. The grinding wheel...

Following are major types of drilling ; Step drilling: More than one diameter can be ground on the drill body which saves an extra operation. Counter boring: Often a flat surface is needed around...

Pick out the most appropriate option: Answers are marked bold ; 1. Mild steel is an alloy of iron and carbon with percentage of carbon ranging from (a) up to 0.2% (b) 0.15–0.3 (c) 0.3–0.5 (d) above 0.5. 2....

ALLOYS OF NICKEL (i) German silver. It is a cupro nickel to which zinc has been added. A typical composition is 60% copper, 30% nickel and 10% zinc. Addition of zinc brings down the cost....

Non Ferrous Metals and Alloys - Properties and Uses : Non-ferrous metals and alloys do not contain any significant quantity of iron. The most common non ferrous metals used in engineering applications are copper, aluminium,...

Bronze ; Bronze is an alloy of copper and tin however commercial bronzes may contain other elements besides tin. In fact, alloys of copper with aluminium, silicon and beryllium, which may contain no tin are...

CNC Machines have these advantages : High Repeatability and Precision e.g. Aircraft parts. Volume of production in CNC is very high Complex contours/surfaces need to be machined. E.g. Turbines Flexibility in job change, automatic tool...

NC - Numeric Controlled and CNC - Computer Numeric Controlled Machines differ in these ways : The difference between NC and CNC is one of age and capability. NC is older compared to CNC The...

Couplings: Shaft couplings are used for connecting two shafts end for transmitting rotary motion directly from one shaft to another. They act as a one unit and transmit power. The classification of shaft coupling is...