Deck 7: Grinding

Question 1

The ____ hand wheel is rotated to move the table left and right.

A) horizontal-feed
B) downfeed
C) longitudinal-feed
D) cross-feed

Answer 1

C

Question 2

____ act as the glue that holds the individual abrasives together in the shape of a wheel.

A) Bonding agents
B) Superabrasives
C) Grades
D) Grits

Answer 2

A

Question 3

Production grinding of the outside shafts and tubes can be performed with the ____ grinder.

A) HSS
B) centerless
C) cylindrical
D) chuck

Answer 3

B

Question 4

____ wheels are second in hardness after diamond wheels.

A) Resinoid
B) CBN
C) Vitrified
D) Silicate

Question 5

____ grinders typically use the side of a grinding wheel to grind workpiece surfaces.

A) Horizontal spindle surface
B) Jig
C) Tool
D) Vertical spindle surface

Question 6

You should perform a ____ test to be sure the wheel is not defective.

A) ring
B) blotter
C) mount
D) spindle

Question 7

____ is the spacing between the individual grains of the grinding wheel and is identified by the numbers 1 through 16.

A) Grain
B) Grade
C) Structure
D) Bond

Question 8

The ____ grinder provides more precise X- and Y-axis movements than a vertical milling machine for extremely accurate positioning.

A) spindle
B) jig
C) cutter
D) cylindrical

Question 9

A ____ grinder is used for tool sharpening while the cutting tools are held in workholding devices and machine slides provide movement for much greater control and flexibility.

A) surface
B) centerless
C) tool and cutter
D) jig

Question 10

____ wheels are probably the most widely used wheel for surface and cylindrical grinding operations.

A) Type 13 saucer
B) Type 1 straight
C) Type 11 flaring cup
D) Type 12 dish

Question 11

____ sizes from 46 to 60 are commonly used for general-purpose surface grinding operations.

A) Grade
B) Grain
C) Bond
D) Structure

Question 12

____ are used in grinding wheels that are used to grind extremely hard materials.

A) Superabrasives
B) Bonds
C) Abrasive
D) Grits

Question 13

____ wheels are identified by the letter E.

A) Rubber
B) Silicone
C) Resinoid
D) Shellac

Question 14

____ grinders typically use the periphery of a solid wheel to grind workpiece surfaces.

A) Cylindrical
B) Horizontal spindle surface
C) Cutter
D) Vertical spindle surface

Question 15

The ____ of a grinding wheel refers to its hardness or strength of the bond and ranges from A to Z.

A) structure
B) grit
C) grade
D) friability

Question 16

Green wheels are the purest form of ____ wheels.

A) silicon carbide
B) ceramic aluminum oxide
C) aluminum oxide
D) silicon oxide

Question 17

The primary purpose of a ____ grinder is to produce flat surfaces.

A) surface
B) horizontal spindle surface
C) jig
D) tool

Question 18

Aluminum oxide and ceramic aluminum oxide wheels are identified by the letter ____.

A) A
B) C
C) O
D) X

Question 19

____ is the ability of the individual abrasive grains to fracture during grinding to create new, sharp cutting edges.

A) Permeability
B) Structurability
C) Friability
D) Grading

Question 20

____ grinders are used to grind diameters, shoulders, and faces much like the lathe is used for turning, facing, and boring operations.

A) Cylindrical
B) Tool and cutter
C) Jig
D) Surface

Question 21

A magnetic V-block can be used to hold a workpiece at a ____-degree angle and extend the magnetism of a check to the workpiece.

A) 45
B) 90
C) 120
D) 145

Question 22

A ____-type indexing fixture can be used to spin a workpiece beneath the grinding wheels to grind diameters.

A) collet
B) sine
C) V-block
D) magnetic

Question 23

Magnetic ____ are not magnetic by themselves but are designed to extend the magnetic field of the chuck to the workpiece.

A) chucks
B) blocks
C) parallels
D) sines

Question 24

____ workholding devices contain alternating segments of ferrous and nonferrous materials that are mounted together to form a single unit.

A) Chuck
B) Magnetic
C) Parallel
D) V-block

Question 25

Precision angles can be ground using a magnetic ____ chuck.

A) plate
B) sine
C) parallel
D) collet

Question 26

____ grinding should be performed when it is not possible to grind two perpendicular surfaces by repositioning the workpiece.

A) Angled
B) Parallel
C) Magnetic
D) Side

Question 27

Aluminum oxide and silicon carbide wheels are dressed and trued simultaneously using a ____ dresser.

A) cluster
B) vise
C) diamond
D) collet

Question 28

Superabrasive wheels should first be trued to eliminate runout using a brake truing device and then dressed using a ____ stick.

A) grinding
B) dressing
C) milling
D) clamping

Question 29

A ____ material is simply a material that is attracted to a magnet.

A) parallel
B) chuck
C) ferromagnetic
D) sine