Production Engineering Questions

• The ratio between two consecutive spindle speeds for a six-speed drilling machine using drills of diameter 6.25 to 25 mm size and at a cutting velocity of 18 m/min is
• The stroke of a shaping machine is 250 mm. It makes 30 double strokes per minute. The overall average speed of operation is
• The swing diameter over carriage is always less than the swing diameter over bed.
• A single point tool has
• The keyways, grooves and slots cannot be cut on a shaper.
• The factor responsible for the formation of discontinuous chips is
• A jig is defined as a device which
• Glazing in grinding wheels takes place when the
• A grinding wheel is said to be of __________ if it holds the abrasive grains more securely.
• A dynamometer is a device used for the measurement of
• The cutting speed of a drill depends upon the
• Which of the following process is used for preparing parts having large curved surfaces and thin sections?
• A mandrel is used to hold
• In drilling operation, the metal is removed by
• A 15 mm drilling machine means that it can drill a hole
• Ultra-sonic machining is best suited for
• Chip breakers are used to
• A grinding wheel becomes glazed (i.e. cutting edge takes a glass-like appearance) due to
• In which of the following machine, the work remains stationary and the tool is rotated?
• When the grinding wheel is marked by the letters from I to P, it indicates that the grinding wheel is of hard grade.