☛ What is the worst thing you had to do as a plumber?
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Which of the following statement is incorrect with reference of lathe cutting tools? A. The flank of the tool is the surface or surfaces below and adjacent to the cutting edges B. The nose is the corner, arc or chamfer joining the side cutting and the end cutting edges C. The heel is that part of the tool which is shaped to produce the cutting edges and face D. The base is that surface of the shank which bears against the support and takes tangent pressure of the cut
The cutting in a milling machine is mounted on.?
In hot machining, tool is made of A. tungsten carbide B. brass or copper C. diamond D. stainless steel
In ultra-sonic machining, the metal is removed by A. using abrasive slurry between the tool and work B. direct contact of tool with the work C. maintaining an electrolyte between the work and tool in a very small gap between the two D. erosion caused by rapidly recurring spark discharges between the tool and work
The angle included between the two lips projected upon a plane parallel to the drill axis and paralled to the two cutting lips, is called helix angle. A. Correct B. Incorrect
The correct sequence of tool materials in increasing order of their ability to retain their hot hardness is A. carbide, ceramic, cermet, borazon B. ceramic, carbide, borazon, cermet C. cermet, carbide, ceramic, borazon D. borazon, ceramic, carbide, cermet
The different spindle speeds on a lathe form A. arithmetical progression B. geometrical progression C. harmonical progression D. any one of these
In the relation VT(n) = C, the value of n for carbide tools is A. 0.1 to 0.2 B. 0.20 to 0.25 C. 0.25 to 0.40 D. 0.40 to 0.55
In orthogonal cutting system, the maximum chip thickness occurs at the middle. A. Correct B. Incorrect
Lapping is an operation of A. making a cone-shaped enlargement of the end of a hole B. smoothing and squaring the surface around a hole C. sizing and finishing a small diameter hole D. producing a hole by removing metal along the circumference of a hollow cutting tool
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