When more volume of acetylene and less volume of oxygen is supplied, then a ___ flame is obtained. None of the listed here Carburising Oxidizing Neutral TRUE ANSWER : ? YOUR ANSWER : ?
The algebraic difference between the minimum limit and the basic size is called Upper deviation Fundamental deviation Actual deviation Lower deviation TRUE ANSWER : ? YOUR ANSWER : ?
A file with 20 teeth in 25 mm is called Second cut file Bastard file Smooth file Rough file TRUE ANSWER : ? YOUR ANSWER : ?
Green sand is a mixture of 90% sand and 10% clay 30% sand and 70% clay 50% sand and 50% clay 70% sand and 30% clay TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following welding process uses non-consumable electrodes? Submerged arc welding Manual arc welding MIG welding TIG welding TRUE ANSWER : ? YOUR ANSWER : ?
A jolt machine is used to Ram the sand harder at the pattern face with decreasing hardness towards the back of the mould Ram the sand harder at the back of the mould and softer on the pattern face Produce uniform packing of sand in the mould Produce uniform sand hardness throughout the mould TRUE ANSWER : ? YOUR ANSWER : ?
In welding copper alloys with TIG arc welding Direct current with straight polarity is used Any one of the listed here Alternating current is used Direct current with reversed polarity is used TRUE ANSWER : ? YOUR ANSWER : ?
Rotary swaging Consists of pressing the metal inside a chamber to force it out by high pressure through an orifice which is shaped to provide the desired form of the finished part Is extensively used for making bolts and rivets Is used to improve fatigue resistance of the metal by setting up compressive stresses in its surface Is used for reducing the diameters of round bars and a tube by rotating dies which open and close rapidly on the work TRUE ANSWER : ? YOUR ANSWER : ?
The metal is subjected to mechanical working for Controlling the direction of flow lines All of these Refining grain size Reducing original block into desired shape TRUE ANSWER : ? YOUR ANSWER : ?
The operation of producing cup shaped parts from flat sheet metal blanks by bending and plastic flow of metal, is known as Planishing Squeezing Drawing Coining TRUE ANSWER : ? YOUR ANSWER : ?