| A | B |
|---|
| The lathe operates on the principle | of the work revolving against thecontrolling cutting tool |
| The longest piece of work that can be turned between centers is equal to the length of the bed minus the space taken up be the | headstock and tailstock |
| lathe sizw is determined bty the | swing and length of the bed |
| The swing of a lathe indicates the largest | diameter work that can be turned over the ways |
| The chief function of any lathe, no matter how complex, is to | rotate the work against a controllable cutting tool |
| Slower speeds with greater power are obtained on some lathes by | engaging back gear |
| A__ chuck can hold hold irregular shape work as each jaw has individual movement | 4-jaw independent |
| Round and hexagonal stock willl center automatically in a 3-jaw universal chuck because | the jaws move simultaneously |
| What cutting speed is recommended when reaming on the lathe? | about two-thirds the speed used for a similar size drill |
| Why is knurling done? | It is used to provide a gripping surface, change the appearance of the work, or increase the work's diameter. |
| What is the first step that should be performed before using a lathe? | The machine should be inspected for safe and proper operation. |
| What is the most accurate method for centering round stock in a 4-jaw chuck? | using a dial indicator |
| Cutting speed and feed govern what conditions? | They determine the length of time required to machine a job and the quality of the surface finish. |
| What is a mandrel? | An accurately made cylindrical section of hardened steel that has been ground with a slight taper |
| How is a steady rest used? | It is bolted directly to the lathe ways and provides additional support for long, thin workpieces. |
| What do long stringy chips indicate? | The tool is not properly sharpened. |
| When parting material, how should the work be mounted in a chuck? | as close to the chuck as possible |
| ____________________ is the distance the cutter moves longitudinally along the ways during a single revolution of the work. | Feed |
| Cutting speeds can be increased 300% to 400% by using ____________________ cutting tools. | carbide |
| A common mistake when using a lathe is to remove too ____________________ (much/little) material at too slow a speed. | little |
