Test

Question 1

When operating machine tools. What is not a good safely rule?

Answer 1

Always wear gloves

Question 2

What is not a good shop safety rule?

Answer 2

Always use compressed air with ordinary air nozzle to clean machinery or
clothing.

Question 3

Name four advantages to circular saws.

Answer 3

a.
Produce a burr free finish
b
Closer tolerances
C.
Produces cuts of extreme accuracy
d
Cutting operation is safe

Question 4

What are the classifications of metals?

Answer 4

Ferrous and non ferrous

Question 5

How are broaches classified?

Answer 5

As planing machines

Question 6

How is the turret lathe different from a machine lathe?

Answer 6

a.
its equipped with a multisided tool holder, to which a number of different cutting
tools are attached

Question 7

Name the three types of tooth sets for power band saws.

Answer 7

a. Raker set
b. Wavy Set
C. Alternate Set

Question 8

In what instance would you use lapping operation?

Answer 8

where there is a high degree of precision and surface finish needed

Question 9

For what purpose would you use a surface grinder?

Answer 9

For final finishing to close dimensions of a part

Question 10

Name three basic parts of a drill press.

Answer 10

a
base
b.
spindle
C.
work table
d
head

Question 11

All twist drills have three major parts, what are they?

Answer 11

Shank, body, and the point

Question 12

What is the purpose of a center punch?

Answer 12

Is used to make an indentation for the drill point at the center to aid the drill in
getting started

Question 13

What speed (rom) should you turn a 4 inch diameter piece of mild steel in a lathe?
Mild steel is recommended at 145 SFPM.

Answer 13

138

Question 14

What is not the basic layout tool used for machine shop layout?

Answer 14

Micrometer

Question 15

High speeds and light feeds are especially recommended for automatic drilling
machines where the holes do not exceed four drill diameters in depth. T/f

Answer 15

True

Question 16

In practical straight turning between centers, the cutting edge of the tool should be set about _____ above center

Answer 16

5 degree

Question 17

What does the following acronyms mean?
UNC
UNF
UNEF

Answer 17

Unified national course
Unified national fine
Unified national extra fine

Question 18

The pitch of screw thread is the distance from a point on a screw thread to the
corresponding point on the adjacent thread. T/f

Answer 18

True

Question 19

For right-hand threads, the carriage must travel toward the tailsotck T/f

Answer 19

False

Question 20

The normal angle for the point of a twist drill should be:

Answer 20

118 degrees

Question 21

The steady rest, also called a center rest, is used to support_____ work pieces for turning and boring operations.

Answer 21

Long

Question 22

What is the most widely used method of machining a taper on the engine lathe?

Answer 22

Using a taper attachment

Question 23

The knee and column milling machine is used more frequently in tool and die shops than any other type. T/f

Answer 23

True

Question 24

Into what two classes are the knee and column machines divided?

Answer 24

Horizontal or vertical

Question 25

Accuracy and durability of the milling machine depends on it being kept clean and oiled t/f

Answer 25

True

Question 26

Feed is the term applied to the distance the tool bit advances along the work for each half revolution of the lathe spindle T/f

Answer 26

False

Question 27

There are two major types of grinding

Answer 27

Precision and non precision

Question 28

Surface grinders are used in the grinding of precision parts. T/f

Answer 28

True

Question 29

What does the acronym CNC mean with regards to robotic machining?

Answer 29

Computer Numerical Control

Question 30

. A drilling machine comes in many shapes and sizes, from small hand-held power drills to bench mounted and finally floor-mounted models. T/f

Answer 30

True

Question 31

Name four basic parts of the engine lathe.

Answer 31

a. Ways b. Tailstock C. Compound rest d. Apron

Question 32

Turret lathes are classified as either horizontal or

Answer 32

Veritical

Question 33

Twist drills are usually made from carbon steel or high-speed steel. T/f

Answer 33

True

Question 34

The roughing tool is used to remove most of the metal on the work piece. T/f

Answer 34

True

Question 35

The work piece should always be firmly fastened to the table or base to produce holes that are located accurately. T/f

Answer 35

True

Question 36

One of the most important factors in successful band swing is a proper cutting speed t/f

Answer 36

True

Question 37

What RPM should' an engine lathe run when turning a 6 in dlameter piece of aluminum? Aluminum cutting speed is 200.

Answer 37

127

Question 38

What (rpm) speed should you turn a 1 1/2 inch diameter piece of copper in a lathe? Copper is recommended at 400 SFPM.

Answer 38

1018

Question 39

What would be the correct speed (rpm) for a ¾"drill to drill cast iron? Cast iron cutting speed is 80.

Answer 39

407

Question 40

List three of the mounting methods used with a milling machine

Answer 40

1. On the table 2. In a chuck, or on fixtures 3. On an arbor Between centers On fixtures

Question 41

Why is sharpening a milling machine cutter so important?

Answer 41

1. A dull cutter wears more rapidly 2. A dull cutter does not last as long

Question 42

Name three types of lathes generally used in high production, heavy-duty work

Answer 42

1. Turret lathes 2. Multiple tool lathes 3. Multiple spindle lathes

Question 43

Why should you not hold work by hand when drilling?

Answer 43

The work could bind and twist causing injury to your hand

Question 44

What is the most important safety rule of all while machining?

Answer 44

Wearing eye protection

Question 45

What is a drill drift used for?

Answer 45

Removing twist drills, sleeves and sockets

Question 46

T/F High speeds and light feeds are especially recommended for automatic drilling machines where the holes do not exceed four drill diameters in depth.

Answer 46

True

Question 47

A taper or bevel at the end of a hole is

Answer 47

Countersinking

Question 48

What designates the size of maximum diameter of the work that can be machined in a lathe?

Answer 48

Swing

Question 49

What are the 3 types of lathes generally used in high production and heavy duty work?

Answer 49

Turret Multi-tool Multi-spindle

Question 50

What part of a lathe is where the entire unit that moves lengthwise along the ways between headstock and tailstock called?

Answer 50

Carriage

Question 51

What is the most accurate means of chucking a work piece in a lathe?

Answer 51

Four jaw

Question 52

What is used to machine the ends of the work and to machine shoulders in the work?

Answer 52

Facing tool

Question 53

Use a dial indicator to set up a_____ Chuck

Answer 53

Four jaw

Question 54

What raises work to drill through material without damaging a vise or table?

Answer 54

Parallels