What is the purpose of lubrication

Reduce friction

for lubrication selection the higher the RPM the higher the viscosity should be

True

False

False

for lubrication selection the higher the load the higher the viscosity should be

True

False

True

for lubrication selection the higher the temperature the higher the viscosity should be

True

False

True

Too high an oil level with a splash system can be a problem

True

False

True - can cause churning and foaming

A drip lubrication system can have the flow of oil controlled

True

False

True

How much grease should be in a bearing

Approx. 2/3 full

The three types of cutting fluid are:

Cutting oil

Soluble oil

Chemical

With soluble oil cutting fluids

You should

add water to the oil

          or

add oil to the water

add oil to the water

Water based cutting fluids should not be used when machining:

magnesium alloys

Three hazards when using cutting fluids are:

Skin irritation

Fumes

Fire

Cutting tool shanks have a ________ taper

Morse

Tapered Gib head keys have a taper of:

1/8" taper per foot

Taper pins have a taper of:

1/4" taper per foot

Tapered mandrels have a taper of:

.006" - .008" taper per foot

A Morse taper has a taper of:

Approx. 5/8" per foot

An ANSI milling machine taper has a taper of:

3 1/2" taper per foot

A Morse taper is an example of a:

Self holding taper

Self releasing taper

Self holding

What kind of taper is used to hold a drill chuck to its shank

Jacobs

Metric tapers are express as:

Taper ratio

Three scales used on lathe taper attachments to set the taper are:

taper per foot

included angle

centerline angle

What type of abrasive is used for high tensile strength materials

Aluminum Oxide

When facing the front of a floor grinder the nut on the left side will be:

Right hand thread

Left hand thread

Left hand thread

What are 2 advantages of using a side wheel grinder

Grinding face is flat not convex

Angles don't change as the wheel wears

What operations are belt grinders used for

Chamfering and deburring

Fine grinding and polishing

What should be done to test a grinding wheel before mounting

Visual inspection

Check RPM rating

Ring test

After mounting a new grinding wheel what should the gap on the work rest be set to

1/16"

What is the maximum gap between a grinding wheel and the work rest

1/8"

How long should you let a newly mounted grinding wheel run at full RPM before using it

1 full minute

What should you tap a suspended new grinding wheel with when checking it for cracks

Something non metallic

What size should the flange be on a floor grinder

1/3 the size of the wheel

What size should the blotter be on a floor grinder

Larger than the wheel flange

What is meant be a glazed grinding wheel

Glazing occurs when the grains become dull and don't break away exposing new cutting edges

What is meant by a loaded grinding wheel

When the spaces between abrasive grains get plugged

What is meant by dressing an abrasive wheel

Removing the top layer of abrasive to expose new grains

What angle should a diamond dresser be held at

15 degrees

What is meant by truing a grinding wheel

Making the outside of the wheel concentric with the bore

What are the 3 main types of drill presses

Sensitive

Upright

Radial Arm

Which of the 3 main drill presses have/has only manual feed only 

Sensitive

Which part of a drill press does not revolve

The quill

Which of the 3 main drill presses have/has only power feed

Upright and Radial arm

Which drill press or drill press can the head be raised with power

Radial arm

What safety precaution should you use if drilling a horizontal hole with a magnetic base drill

Use a safety chain so it won't fall if power is lost

What RPM should be used when reaming a hole compared to drilling a hole

What feed rate should be used

1/2 the RPM used for drilling

2 times the feed rate

What are chucking reamers

Straight shank machine reamers designed to fit in a chuck

What size should a hole be drilled before reaming a 3/8"

hole

1/64" under size : 23/64

Should a reamer be removed from a hole before or after the spindle is stopped

before

What is the most common included angle for a countersink

82 degrees

What RPM should be used when countersinking a hole compared to drilling

approx. 1/4 the drilling rpm

What RPM should be used when counterboring a hole as compared to drill a hole

1/4 the drilling rpm

What type of tap should be used for blind holes

Spiral fluted

What type of tap should be used for through holes

Gun tap (spiral pointed)

What RPM should be used when spotfacing as compared to drilling a hole

1/4 the rpm used for drilling a hole

What is a drill sleeve used for

to increase the size of the taper when the taper on a tool is too small for the spindle

What is a drill socket used for

to decrease the size of the taper when the taper on a tool is too large for the spindle

What is a drill drift used for

to remove tools from sleeve and spindles

Where should the t-bolt be located when clamping a workpiece

As close as possible to the workpiece

What is a drill jig used for

to hold and locate the hole location

holds the work and guides the drill bit

The 3 main parts of a drill are

Point

Body

Shank

Where do you measure the diameter of a drill bit

Across the margins

Where is the land located on a drill bit

Between the flute and the margin

What part of a drill bit forms the chisel edge

the web

What are straight fluted drill bits used for

soft material

What are spade drills used for

large diameter holes

What is another name for a center drill

combination drill countersink

Where do rose reamers do all their cutting

What angle is the chamfer on a rose reamer

On the chamfered end

45 degrees

What are the 4 sizing methods used for drill bits

Fractional

Number

Letter

Metric

Which is larger a # 15  or a # 25 drill bit

# 15

Which is larger a D drill bit or a F drill bit

F

How much clearance should there be behind the cutting edge of a drill bit

8 to 12 degrees

What is the included angle of a general purpose drill bit

118 degrees

What is the included angle of a drill bit for hard material

135 to 150 degees

What is the included angle of a drill bit for soft material

60 to 90 degrees

Why does a drill bit have its chisel edge thinned

the web gets thicker towards the shank

What is the most common set used on a band saw

raker

What is meant by stacking when using a horizontal band saw

stackin several pieces together and cutting them all at once

What pitch of blade is used for general purpose sawing with a band saw

10

What is meant by the blade width

distance from the back of the blade to the tip of the tooth

What affect does the width of the blade have

determines the size of the radius that can be cut

What is meant by the kerf of the blade

the width of the cut that the blade makes

What tooth shape is used for general purpose band saw blades

standard tooth

Which band saw blade set has one tooth to the right, one to the left and one straight and repeats this pattern

raker

Which band saw blade set has one tooth to the right, one to the left, and repeats this pattern

Straight or Alternate

A bolt head has 3 lines on it. What grade is it

grade 5

What class of metric bolt is equivalent to a grade 5 imperial bolt

Class 8

A 1032 woodruff key

What does the 32 represent

What does the 10 represent

32 / 8's in diameter - 4" diameter

10/32's in width - 5/16" wide

What would the measured size be for a dowel pin

0.0002" over nominal size

At what height should the spacer block end of the strap clamp be in order to clamp properly

slightly higher than the workpiece

What will happen if a pilot hole is too large when drilling a large hole

The drill will chatter

What size should a pilot hole be when drilling

Slightly larger than the chisel edge

Which Drilling Machine can spin (index) the head to the next position

Turret drilling machine

What is the definition of Drilling

MAKING A HOLE WHERE NONE EXISTED BEFORE

How are Drill Chucks sized

By THE LARGEST DRILL THEY WILL HOLD

What are Core Drills used for

Enlarge existing holes

How can a Twist Drill be modified to drill soft materials such as brass

GRIND A SMALL FLAT ON THE CUTTING EDGE PARALLEL TO THE AXIS OF THE DRILL

What will happen if the cutting lip lengths on a drill bit are not equal

Will cut oversize

helical spring

internal locking

external locking