MACHINING OPERATIONS AND MACHINE TOOLS
1 What are the differences between rotational parts and prismatic parts in
machining.
2 Distinguish between generating and forming when machining workpart
geometries.
3 Give two examples of machining operations in which generating and forming are
combined to create workpart geometry.
4 Describe the turning process.
5 What is the difference between threading and tapping?
6 How does a boring operation differ from a turning operation?
7 What is meant by the designation 12 x 36 inch lathe?
8 Name the various ways in which a workpart can be held in a lathe.
9 What is the difference between a live center and a dead center, when these
terms are used in the context of workholding in a lathe?
10 How does a turret lathe differ from an engine lathe?
11 What is a blind hole?
12 What is the distinguishing feature of a radial drill press?
13 What is the difference between peripheral milling and face milling?
14 Describe profile milling.
15 What is pocket milling?
16 Describe the difference between up milling and down milling?
17 How does a universal milling machine differ from a conventional knee-andcolumn machine?
18 What is a machining center?
19 What is the difference between a machining center and a turning center?
20 What can a mill-turn center do that a conventional turning center cannot do?
21 How do shaping and planing differ? 22 What is the difference between internal
broaching and external broaching?
23 Identify the three basic forms of sawing operation?
Multiple Choice Questions
There is a total of 17 correct answers in the following multiple-choice questions
(some questions have multiple answers that are correct). To attain a perfect score
on the quiz, all correct answers must be given. Each correct answer is worth 1
point. Each omitted answer or wrong answer reduces the score by 1 point, and
each additional answer beyond the correct number of answers reduces the score
by 1 point. Percentage score on the quiz is based on the total number of correct
answers.
1 Which of the following are examples of generating the workpart geometry in
machining, as compared to forming the geometry (two correct answers): (a)
broaching, (b) contour turning, (c) drilling, and (d) profile milling?
2 In a turning operation, the change in diameter of the workpart is equal to which
one of the following: (a) 1 x depth of cut, (b) 2 x depth of cut, (c) 1 x feed, or
(d) 2 x feed?
3 A lathe can be used to perform which of the following machining operations
(three correct answers): (a) boring, (b) broaching, (c) drilling, (d) milling, (e)
planing, or (f) turning.
4 A facing operation is normally performed on which one of the following machine
tools: (a) drill press, (b) lathe, (c) milling machine, (d) planer, or (e) shaper?
5 Knurling is performed on a lathe, but it is a metal forming operation rather than a
metal removal operation: (a) true or (b) false?
6 Which one of the following cutting tools cannot be used on a turret lathe: (a)
broach, (b) cut-off tool, (c) drill bit, (d) single point turning tool, or (e)
threading tool?
7 Which one of the following turning machines permits very long bar stock to be
used: (a) chucking machine, (b) engine lathe, (c) screw machine, (d) speed
lathe, or (e) turret lathe?
8 Reaming is used for which of the following functions (three correct answers): (a)
accurately locate a hole position, (b) enlarge a drilled hole, (c) improve
surface finish on a hole, (d) improve tolerance on hole diameter, and (e)
provide an internal thread?
9 End milling is most similar to which one of the following: (a) face milling, (b)
peripheral milling, (c) plain milling, or (d) slab milling?
10 The basic milling machine is which one of the following: (a) bed type, (b) kneeand-column, (c) profiling mill, (d) ram mill, and (e) universal milling machine?
11 A planing operation is best described by which one of the following: (a) a single
point tool moves linearly past a stationary workpart, (b) a tool with multiple
teeth moves linearly past a stationary workpart, (c) a workpart is fed linearly
past a rotating cutting tool, or (d) a workpart moves linearly past a singlepoint tool?
12 A broaching operation is best described by which one of the following: (a) a
rotating tool moves past a stationary workpart, (b) a tool with multiple teeth
moves linearly past a stationary workpart, (c) a workpart is fed past a
rotating cutting tool, or (d) a workpart moves linearly past a stationary single
point tool?