251) while cutting helical gears on a non-differential gear hobber, the feed change gear ratio is
inter-related to index change gear ratio
Related Production Engineering MCQ with Answers
all of these
The purpose of jigs and fixtures is to
* increase machining accuracy
* facilitate interchangeability
* decrease expenditure on quality control
holds and locates a work piece and guides and controls one or more cutting tools
A jig is a work-holding device that holds, supports, and locates the workpiece and guides the one or more tools to perform a specific operation.
A fixture is a work-holding device that only holds, supports, and locates the workpiece, but does not guide the tools to perform a specific operation.
holds and locates a wok piece during an inspection or for a manufacturing operation
Fixtures are the work holding devices, which holds, supports and locates the workpiece but not guides the cutting tool to perform a specific operation.
for holding and guiding the tool in drilling, reaming or tapping operations
A jig is a work-holding device that holds, supports, and locates the workpiece and guides the one or more tools to perform a specific operation.
A fixture is a work-holding device that only holds, supports, and locates the workpiece, but does not guide the tools to perform a specific operation.
