While current is shut down in the welding circuit, what kind of voltage exists between the output terminals of the welding machine?
GTAW
Open air cut voltage
Kerf
Gouging
- The specific cutting energy used for establishing the machinability of the metal depends upon its
- A tool used to withdraw a drill from the sleeve is called
- What is the welding defect caused due to improper control and poor removal of slog between passes called?
- A better machinable metal is one which gives
- The lip angle is the angle
- High speed steel cutting tools operate at cutting speeds _________ than carbon steel tools.
- The material property which depends only on the basic crystal structure is
- The aluminium oxide abrasive is chiefly used for grinding
- Which of the following process is used for preparing parts having large curved surfaces and thin sections?
- A feed gear box for a screw cutting lathe is designed on the basis of
- Tumbler gears in lathe are used to
- If a gas metal arc process uses a low arc voltage and the arc is continuously interrupted as the molten…
- In a plain milling cutter, the chip space between the back of one tooth and the face of the next tooth…
- The grinding wheel speed (surface speed in m/min) usually varies from
- In metal cutting, use of low feeds and high cutting speeds is desired when the objective is
- In order to obtain a surface finish in the range of 0.75 μm to 1.25 μm , the operation used…
- The operation of producing grooves around the periphery of a cylindrical or conical workpiece is called
- Which of the following statement is correct about EDM machining?
- Trepanning is an operation of
- The angle between the face and flank of the single point cutting tool is known as
- A taper tap has
- The cutting speed for drilling aluminium, brass and bronze with carbon steel drills is _________ cutting…
- If the diameter of the hole is subject to considerable variation, then for locating in jigs and fixtures,…
- When 3-2-1 principle is used to support and locate a three dimensional work-piece during machining,…
- Crater wear leads to
- The purpose of jigs and fixtures is to
- In oblique cutting system, the cutting edge of the tool
- In centre less grinders, the maximum angular adjustment of the regulating wheel is
- The process of changing the shape of grinding wheel as it becomes worn due to breaking away of the abrasive…
- In metal machining, the zone where the heat is generated due to friction between the moving chip and…