The different spindle speeds on a lathe form Any one of these Geometrical progression Harmonical progression Arithmetical progression TRUE ANSWER : ? YOUR ANSWER : ?
High speed steel tools retain their hardness up to a temperature of 250°C 900°C 500°C 350°C TRUE ANSWER : ? YOUR ANSWER : ?
In metal machining, the zone where the heat is generated due to friction between the moving chip and the tool face, is called Shear zone None of these Friction zone Work-tool contact zone TRUE ANSWER : ? YOUR ANSWER : ?
Hard and tough materials like cast iron should be turned at Any speed Certain specific speed Slow speed High speed TRUE ANSWER : ? YOUR ANSWER : ?
The lathe spindles at the nose end have No threads Internal screw threads External screw threads Tapered threads TRUE ANSWER : ? YOUR ANSWER : ?
A hole is of dimension φ = 9 ₊0⁺⁰∙⁰¹⁵ mm. The corresponding shaft is of dimension φ = 9 ₊0.001⁺⁰∙⁰¹⁰ mm. The resulting assembly has Interference fit Transition fit Loose running fit Close running fit TRUE ANSWER : ? YOUR ANSWER : ?
Internal gears can be made by Hobbing Shaping with rack cutter Milling Shaping with pinion cutter TRUE ANSWER : ? YOUR ANSWER : ?
Two 1 mm thick steel sheets are to be spot welded at a current of 5000 A. Assuming effective resistance to be 200 μm and current flow time of 0.2 second, heat generated during the process will be 1000 Joule 5 Joule 1 Joule 0.2 Joule TRUE ANSWER : ? YOUR ANSWER : ?
In a particular type of welding, flux is prepared in the form of a coarse powder and granulated flux is spread over the joint. What is this type of welding process called? Electric arc welding MIG welding TIG welding Submerged arc welding TRUE ANSWER : ? YOUR ANSWER : ?
The binding material used in cemented carbide tools is Cobalt Tungsten Silicon Chromium TRUE ANSWER : ? YOUR ANSWER : ?