For machining a mild steel workpiece using carbide tool, the maximum material will be removed at a temperature of 275°C 50°C 100°C 175°C TRUE ANSWER : ? YOUR ANSWER : ?
Lapping is an operation of Making a cone-shaped enlargement of the end of a hole Producing a hole by removing metal along the circumference of a hollow cutting tool Smoothing and squaring the surface around a hole Sizing and finishing a small diameter hole TRUE ANSWER : ? YOUR ANSWER : ?
In ultrasonic machining, the metal is removed by Maintaining an electrolyte between the work and tool in a very small gap between the two Erosion caused by rapidly recurring spark discharges between the tool and work Direct contact of tool with the work Using abrasive slurry between the tool and work TRUE ANSWER : ? YOUR ANSWER : ?
The helix angle of a drill is ___ for drilling brass. None of the listed here More than 30° Less than 30° Equal to 30° TRUE ANSWER : ? YOUR ANSWER : ?
The tool life is affected by Depth of cut Feed Cutting speed All of the listed here TRUE ANSWER : ? YOUR ANSWER : ?
The addition of lead, sulphur and phosphorus to low carbon steels, help to All of these Break up chips Improve machinability Reduce built up edge TRUE ANSWER : ? YOUR ANSWER : ?
The lathe centres are provided with standard taper known as Brown and Sharpe taper Morse taper Chapman taper Seller's taper TRUE ANSWER : ? YOUR ANSWER : ?
The lip angle of a single point tool is usually 20° to 40° 60° to 80° 40° to 60° None of these TRUE ANSWER : ? YOUR ANSWER : ?