What is the smallest measurement on a decimal steel rule?

1/100” (0.010in)

What is the smallest measurement on a metric steel rule?

0.5mm

What is the smallest measurement on a fractional steel rule?

1/64” (0.01564in)

The five common types of rules used in a machine shop are:

THE SPRING TEMPERED RULE (THE RIGID)

THE FLEXIBLE RULE

THE NARROW RULE

THE HOOK RULE

THE SHORT LENGTH RULE

What are the graduations on a Number 4 standard rule

1/64” & 1/32” & 1/16” & 1/8”

What are the graduations on a Metric rule?

MILLIMETRES AND HALF MILLIMETRES

What type of measurement instrument is a Caliper?

INDIRECT READING INSTRUMENT

(TRANSFER MEASURING TOOL)

List the two ways that a Caliper can be used

1. ADJUST THE CALIPER UNTIL THE LEGS JUST CONTACT THE OBJECT BEING MEASURED.  THEN MEASURE THE DISTANCE ACROSS THE CALIPER LEGS

2. SET THE CALIPER TO A KNOWN DIMENSION AND USE IT AS A GAUGE TO CHECK HOW CLOSE AN OBJECT IS TO THE DESIRED SIZE

What type of error is happening from the “A” and “C” locations below?

               [image]                

PARALLAX ERROR

What is the descrimination of a Vernier Imperial Micrometer

0.0001” (a tenth of a thou)

What type of Micrometer may be used as a Comparator to check the size of a part?

THE INDICATING MICROMETER

VERNIER CALIPERS

DIAL CALIPERS

DIGITAL CALIPERS

List four Direct reading Inside Measuring tools: 

1. AN INSIDE MICROMETER

2. AN INSIDE MICROMETER CALIPER

3. AN INTRIMIK

4. A DIAL BORE GAUGE

List two Indirect reading (transfer measurement) Inside Measuring tools

1. A TELESCOPING GAUGE

2. A SMALL-BORE GAUGE

Which Direct Reading Inside Measuring tool is self-centering?

INTRIMIK

List the three tools available for Measuring the Depth of a Hole, Slot or Recess

THE MICROMETER DEPTH GAUGE

THE VERNIER DEPTH GAUGE

VERNIER CALIPERS

What device must be used with a Height Gauge?

A SURFACE PLATE OR LAYOUT TABLE

What is the discrimination (smallest possible measurement) of an Imperial Vernier Caliper?

0.001” (1 thousandth of an inch)

What is the smallest division on the Main Scale of a 50-division Vernier scale?

0.050” (50 thousandths of an inch)

What is the discrimination (smallest possible measurement) of a 50 division Metric Vernier Caliper

0.02mm (2 hundredths of a millimeter)

(1 m.m. / 50 = 0.02)

What is the discrimination (smallest possible measurement) of a 20 division Metric Vernier Caliper?

0.05mm (5 hundredths of a millimeter)

( 1 / 20 = 0.05 )

How are the Measuring Faces on a 1" Outside Micrometer cleaned?

GENTLY CLOSE THE MICROMETER ON A PIECE OF PAPER AND PULL THE PAPER THROUGH

What is the Pitch and TPI of the screw on an Imperial Micrometer

PITCH – 0.025” (25 thousandths of an inch)

TPI – 40 threads per inch

What is the Pitch of the screw on a Metric Micrometer?

0.5mm (half of a millimeter)

What are the two ways that an Inside Measuring tool must be aligned to accurately measure a bore

EXACTLY ACROSS THE DIAMETER OF THE BORE

EXACTLY AT RIGHT ANGLES TO THE AXIS OF THE BORE

What type of Measuring Instruments are Telescoping Gauges and Small Hole Gauges

TRANSFER TYPE MEASURING INSTRUMENTS (INDIRECT MEASURING)

What are the two main reasons for using Fixed Gauges

A FIXED GAUGE REQUIRES MUCH LESS SKILL OF THE OPERATOR

A FIXED GAUGE DETERMINES WHETHER A PART IS WITHIN TOLERANCE, RATHER THAN ITS ACTUAL SIZE.

(very quick to check if part is within tolerance)

What is an easy way to tell the difference between the “GO” end and the “NO GO” end on this cylindrical plug gauge 

[image]

THE “GO” END IS LONGER THAN THE “NO GO” END

What is an easy way to tell the difference between the “GO” gauge and the “NO GO” gauge on the thread ring gauge

[image]

THE “NO GO” GAUGE HAS AN ANNULAR (ring shaped) GROOVE CUT INTO THE KNURLED PERIPHERY OF THE GAUGE

What is the definition of Basic Size

THE BASIC SIZE IS THE STARTING SIZE TO WHICH THE TOLERANCE IS APPLIED

What is the definition of Tolerance

TOLERANCE IS THE TOTAL VARIATION PERMITTED IN A PARTS SIZE

What is the definition of Allowance

ALLOWANCE IS THE INTENTIONAL DIFFERENCE BETWEEN MATING PARTS AT MAXIMUM MATERIAL CONDITION

What is the term given to the rate at which a material expands or contracts

COEFFICIENT OF EXPANSION

What is the Standard Temperature at which measurements can be taken accurately

20°C   OR   68°F

What grade of Surface Plate is meant to be used in a Machine Shop

GRADE B – TOOLROOM GRADE

What are the two types of Dividers?

FIRM JOINT DIVIDERS

SPRING JOINT DIVIDERS

HERMAPHRODITE CALIPERS ARE USED TO SCRIBE WHAT KIND OF LINE

TO SCRIBE A LINE PARALLEL TO AN EDGE (DATUM)

What are the two parts that make up a Solid Square

BLADE

BEAM

What is a surface gauge used for

Scribe horizontal lines parallel to the edge of a workpiece

What is the included angle of the point of a prick punch

30 to 60 degrees

What is the included angle of the point on a centre punch

90 degrees

What is the definition of Permanent Layout

LIGHTLY PRICK PUNCHING MARKS AT REGULAR INTERVALS ALONG THE LAYOUT (SCRIBED) LINE

Which layout coating is used on Ferrous Metals only

COPPER SULPHATE

What type of dimensioning can have an accumulation of error

INCREMENTAL DIMENSIONING

Why would you put punch marks (witness marks) around the circumference of a laid out hole

ACT AS A VISUAL AID WHEN DRILLING, TO SHOW IF THE DRILL IS OFF CENTER

What two things can Straight edges be used for

TO CHECK A SURFACE FOR FLATNESS

TO GUIDE A SCRIBER WHEN DRAWING LONG LINES

Which direction does the peen on a cross peen hammer point

Across the axis of the handle (90 deg. to handle)

What are the three types of Screwdrivers commonly used in industry

STANDARD (FLAT BLADE)

ROBERTSON

PHILLIPS

how should a Flat screwdriver blade  be ground

THE BLADE SHOULD BE GROUND CONCAVE

What are the three common types of scales used on Torque Wrenches

INCH-POUNDS (in. lbs)

FOOT-POUNDS (ft lbs)

NEWTON METRES (Nm)

At what angle are the handles of box wrenches made from the surface of the work

15 degrees

In which direction should the moveable jaw of an adjustable wrench face

The moveable jaw should always face in the direction of rotation

What direction should the teeth point when the blade is mounted in a Hacksaw

THE TEETH SHOULD BE POINTING AWAY FROM THE HANDLE

What are the two main types of Hacksaw Blades

ALL-HARD BLADES

FLEXIBLE-BACK BLADES

What is the most common pitch of hacksaw blade for general shop use

18-PITCH BLADE

What pitch of hacksaw blade should be used on soft material

A) COARSE PITCH

B) FINE PITCH

A) COARSE PITCH

How many saw blade teeth must be in contact with the work at all times

TWO OR THREE TEETH

What is the term used to identify the Hacksaws width of cut in the work material?

KERF

What are the two types of blade sets used for hacksaws

THE STRAIGHT SET (one tooth set to the right and the next to the left)

THE WAVY SET (one set of waves to the right and the next to the left)

What should be done if a hacksaw blade will not start easily in the material to be cut

FILE A V-SHAPED NICK AT THE STARTING POINT

How many strokes per minute should you cut with a hacksaw

ABOUT 50 STROKES PER MINUTE

What should be done if a hacksaw blade breaks part way through a cut

START A NEW CUT BESIDE THE ORIGINAL CUT OR TURN THE WORK 180° AND MAKE A CUT FROM THE OPPOSITE SIDE TO MEET THE FIRST CUT

What can be done when sawing thin material to stop the blade from jamming into the work

CLAMP THE THIN MATERIAL BETWEEN TWO PIECES OF BOARD

What part of a file allows the machinist to file up against a shoulder without damaging a finished surface

A SAFE EDGE

What are the four basic styles of cut on files

SINGLE-CUT

DOUBLE-CUT

CURVED TOOTH CUT

RASP CUT

What are six different degrees of coarseness available on files

ROUGH

COARSE

BASTARD

SECOND-CUT

SMOOTH

DEAD SMOOTH

Does a 12” Bastard file and a 6” bastard file have the same distance between the teeth (pitch)?

NO: AS THE FILE GETS SMALLER, THE DISTANCE BETWEEN THE TEETH ALSO GETS SMALLER

What are the five classes of files

MILL OR SAW FILES (SAWMILL)

MACHINIST

SWISS PATTERN

RASPS

CURVED TOOTH

What type of filing method is used when large amounts of material has to be removed?

CROSS FILING

What type of filing method is used when a good surface finish is required

DRAW FILING

What type of file is used when Draw filing

A SMOOTH SINGLE-CUT FILE

What type of file is preferred when filing on a lathe

A LONG ANGLED LATHE FILE

How should a file be held when filing on a lathe

IT SHOULD BE HELD IN THE LEFT HAND AND THE POINT SHOULD BE CONTROLLED WITH THE RIGHT

WHAT IS THE INCLUDED ANGLE OF A FLAT (COLD) CHISEL

60 DEGREES

HOW SHOULD THE END OF A FLAT (COLD) CHISEL BE GROUND

IN A CONVEX SHAPE

WHAT IS A CAPE CHISEL USED FOR

NARROW GROOVES AND KEYSEATS

WHAT IS A ROUND NOSED CHISEL USED FOR

OIL GROOVES

WHAT CHISELS SHOULD BE GROUND ON THE ANGLED FACE

DIAMOND

ROUND NOSED

Below is an end view of a Hand Tap. 

(a)What part is the arrow pointing to 

(b) what is its function?[image]

1. FLUTE

b.  IT PROVIDES SPACE FOR THE CHIPS    AND A PASSAGE FOR CUTTING FLUID

¾ - 10 UNC 2A

WHAT DOES THE 2 IN THE ABOVE THREAD CALL OUT REFER TO

CLASS OF THREAD

¾ - 10 UNC 2A

WHAT DOES THE THE UNC IN THE ABOVE THREAD CALL OUT REFER TO

UN:  UNIFIED NATIONAL

 C :   COARSE

HOW MANY THREADS ARE TAPERED ON THE END OF A

TAPER TAP

SIX

HOW MANY THREADS ARE TAPERED ON THE END OF A PLUG TAP

THREE

What is the Formula TO CALCULATE

Tap Drill Size FOR AN IMPERIAL THREAD 

TAP DRILL SIZE = MD - PITCH

                      OR

TAP DRILL SIZE = MD - 1/N

MD:  MAJOR DIAMETER

What is the Formula TO CALCULATE

Tap Drill Size FOR A METRIC THREAD

TAP DRILL SIZE = MD - PITCH

                      OR

TAP DRILL SIZE = MD - 1/N

MD : MAJOR DIAMETER

What is the formula to calculate the Major Diameter of a Machine Screw

MD = 0.060 + (# x 0.013)

MD : MAJOR DIAMETER

# : NUMBER OF MACHINE SCREW

WHAT IS THE FORMULA TO  CALCULATE THE

PITCH OF A THREAD

PITCH = 1 / NUMBER OF THREAD

M18 x 2

WHAT IS THE PITCH OF THIS THREAD

2 M.M.

What are the three types in a set of Metric taps

TAPER

PLUG

BOTTOMING

How often should you reverse the direction of a tap during a hand tapping operation

EVERY QUARTER TO ONE-HALF TURN

What are Serial Taps used for

TO CUT DIFFICULT-TO-TAP MATERIALS BY HAND

Which Die is used specifically for chasing (reconditioning) damaged or corroded threads

SOLID DIES

Which Die has the greatest amount of adjustment

ADJUSTABLE SCREW PLATE DIE

What is the purpose of a Hand Reamer

A REAMER IS USED TO FINISH HOLES ACCURATELY TO SIZE AND GIVE A SMOOTH SURFACE FINISH

State the four types of Hand Reamers available

SOLID REAMERS

EXPANSION REAMERS

ADJUSTABLE REAMERS

TAPER REAMERS

What is the Taper per Foot of a Taper Pin Reamer

¼” Taper per Foot

What will happen if a Hand Reamer is turned in a Counter-Clockwise direction

IT WILL QUICKLY DULL THE CUTTING EDGES 

What is the length of the Starting Taper on a Hand Reamer approx equal to

APPROX EQUAL TO THE DIAMETER OF THE REAMER

What is the difference in height between each tooth on a Broach?(not including the last 3 teeth)

0.003” (3 thousandths of an inch)

What is the difference in height on the last 3 teeth of a Broach

THEYARE ALL THE SAME HEIGHT TO PROVIDE THE FINAL KEYWAY SIZE AND A GOOD FINISH

What is used to increase the depth of a keyway when Broaching

SHIMS

What type of Grinding wheel is generally mounted on a pedestal grinder

ALUMINUM OXIDE

What type of Honing Stone is used for Carbide Cutting tools

SILICON CARBIDE

What type of Honing Stone is used for High-Speed Steel cutting tools

ALUMINUM OXIDE

What is the bond used on an abrasive cut-off wheel

SYNTHETIC RESIN, PLASTIC, OR RUBBER

What is the finest grit of Lapping Paste (compound)

600 GRIT