Soft materials can not be economically ground due to Frequent wheel clogging High temperature involved Rapid wheel wear Low work piece stiffness TRUE ANSWER : ? YOUR ANSWER : ?
A coarse grained grinding wheel is used to grind Hard and brittle materials Soft and ductile materials Soft and brittle materials Hard and ductile materials TRUE ANSWER : ? YOUR ANSWER : ?
Glazing in grinding wheels can be decreased by Using a harder wheel or by increasing the wheel speed Using a harder wheel or by decreasing the wheel speed Using a softer wheel or by increasing the wheel speed Using a softer wheel or by decreasing the wheel speed TRUE ANSWER : ? YOUR ANSWER : ?
Surface grinding is done to produce All of the listed here Tapered surface Flat surface Internal cylindrical holes TRUE ANSWER : ? YOUR ANSWER : ?
The primary purpose of a sprue in a casting mould is to Act as a reservoir for molten metal Help feed the casting until all solidification takes place Feed molten metal from the pouring basin to the gate Feed the casting at a rate consistent with the rate of solidification TRUE ANSWER : ? YOUR ANSWER : ?
Flank wear occurs mainly on the Front face only Cutting edge only Face of the cutting tool at a short distance from the cutting edge Nose part, front relief face and side relief face of the cutting tool TRUE ANSWER : ? YOUR ANSWER : ?
In grinding irregular, curved, tapered, convex and concave surfaces, the grinder used is Tool and cutter grinder Cylindrical grinder Internal grinder Surface grinder TRUE ANSWER : ? YOUR ANSWER : ?
The purpose of jigs and fixtures is to Increase machining accuracy All of these Facilitate interchangeability Decrease expenditure on quality control TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following statement is correct for orthogonal cutting system? The cutting edge clears the width of the workpiece on either ends All of these The chip flows over the tool face and the direction of the chip flow velocity is normal to the cutting edge The cutting edge of the tool is perpendicular to the direction of tool travel TRUE ANSWER : ? YOUR ANSWER : ?
When two main plates are kept in alignment butting each other and riveted with cover plate on both sides of the main plates with two rows of rivets in each main plate, the joint is known as _______ double cover butt joint. Both (A) and (B) Single riveted Double riveted None of these TRUE ANSWER : ? YOUR ANSWER : ?