# Shared Flashcard Set

## Details

1st year machinist
Unit 1
108
Other
Not Applicable
03/15/2015

Term
 What is the smallest measurement on a decimal steel rule?
Definition
 1/100” (0.010in)
Term
 What is the smallest measurement on a metric steel rule?
Definition
 0.5mm
Term
 What is the smallest measurement on a fractional steel rule?
Definition
 1/64” (0.01564in)
Term
 The five common types of rules used in a machine shop are:
Definition
 THE SPRING TEMPERED RULE (THE RIGID) THE FLEXIBLE RULE THE NARROW RULE THE HOOK RULE THE SHORT LENGTH RULE
Term
 What are the graduations on a Number 4 standard rule
Definition
 1/64” & 1/32” & 1/16” & 1/8”
Term
 What are the graduations on a Metric rule?
Definition
 MILLIMETRES AND HALF MILLIMETRES
Term
 What type of measurement instrument is a Caliper?
Definition
 INDIRECT READING INSTRUMENT (TRANSFER MEASURING TOOL)
Term
 List the two ways that a Caliper can be used
Definition
 ADJUST THE CALIPER UNTIL THE LEGS JUST CONTACT THE OBJECT BEING MEASURED.  THEN MEASURE THE DISTANCE ACROSS THE CALIPER LEGS SET THE CALIPER TO A KNOWN DIMENSION AND USE IT AS A GAUGE TO CHECK HOW CLOSE AN OBJECT IS TO THE DESIRED SIZE
Term
 What type of error is happening from the “A” and “C” locations below?                [image]
Definition
 PARALLAX ERROR
Term
 What is the descrimination of a Vernier Imperial Micrometer
Definition
 0.0001” (a tenth of a thou)
Term
 What type of Micrometer may be used as a Comparator to check the size of a part?
Definition
 THE INDICATING MICROMETER
Term
 What are the three types of Slide Calipers
Definition
 VERNIER CALIPERS DIAL CALIPERS DIGITAL CALIPERS
Term
 List four Direct reading Inside Measuring tools:
Definition
 AN INSIDE MICROMETER AN INSIDE MICROMETER CALIPER AN INTRIMIK A DIAL BORE GAUGE
Term
 List two Indirect reading (transfer measurement) Inside Measuring tools
Definition
 A TELESCOPING GAUGE A SMALL-BORE GAUGE
Term
 Which Direct Reading Inside Measuring tool is self-centering?
Definition
 INTRIMIK
Term
 List the three tools available for Measuring the Depth of a Hole, Slot or Recess
Definition
 THE MICROMETER DEPTH GAUGE THE VERNIER DEPTH GAUGE VERNIER CALIPERS
Term
 What device must be used with a Height Gauge?
Definition
 A SURFACE PLATE OR LAYOUT TABLE
Term
 What is the discrimination (smallest possible measurement) of an Imperial Vernier Caliper?
Definition
 0.001” (1 thousandth of an inch)
Term
 What is the smallest division on the Main Scale of a 50-division Vernier scale?
Definition
 0.050” (50 thousandths of an inch)
Term
 What is the discrimination (smallest possible measurement) of a 50 division Metric Vernier Caliper
Definition
 0.02mm (2 hundredths of a millimeter) (1 m.m. / 50 = 0.02)
Term
 What is the discrimination (smallest possible measurement) of a 20 division Metric Vernier Caliper?
Definition
 0.05mm (5 hundredths of a millimeter) ( 1 / 20 = 0.05 )
Term
 How are the Measuring Faces on a 1" Outside Micrometer cleaned?
Definition
 GENTLY CLOSE THE MICROMETER ON A PIECE OF PAPER AND PULL THE PAPER THROUGH
Term
 What is the Pitch and TPI of the screw on an Imperial Micrometer
Definition
 PITCH – 0.025” (25 thousandths of an inch) TPI – 40 threads per inch
Term
 What is the Pitch of the screw on a Metric Micrometer?
Definition
 0.5mm (half of a millimeter)
Term
 What are the two ways that an Inside Measuring tool must be aligned to accurately measure a bore
Definition
 EXACTLY ACROSS THE DIAMETER OF THE BORE EXACTLY AT RIGHT ANGLES TO THE AXIS OF THE BORE
Term
 What type of Measuring Instruments are Telescoping Gauges and Small Hole Gauges
Definition
 TRANSFER TYPE MEASURING INSTRUMENTS (INDIRECT MEASURING)
Term
 What are the two main reasons for using Fixed Gauges
Definition
 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)
Term
 What is an easy way to tell the difference between the “GO” end and the “NO GO” end on this cylindrical plug gauge  [image]
Definition
 THE “GO” END IS LONGER THAN THE “NO GO” END
Term
 What is an easy way to tell the difference between the “GO” gauge and the “NO GO” gauge on the thread ring gauge [image]
Definition
 THE “NO GO” GAUGE HAS AN ANNULAR (ring shaped) GROOVE CUT INTO THE KNURLED PERIPHERY OF THE GAUGE
Term
 What is the definition of Basic Size
Definition
 THE BASIC SIZE IS THE STARTING SIZE TO WHICH THE TOLERANCE IS APPLIED
Term
 What is the definition of Tolerance
Definition
 TOLERANCE IS THE TOTAL VARIATION PERMITTED IN A PARTS SIZE
Term
 What is the definition of Allowance
Definition
 ALLOWANCE IS THE INTENTIONAL DIFFERENCE BETWEEN MATING PARTS AT MAXIMUM MATERIAL CONDITION
Term
 What is the term given to the rate at which a material expands or contracts
Definition
 COEFFICIENT OF EXPANSION
Term
 What is the Standard Temperature at which measurements can be taken accurately
Definition
 20°C   OR   68°F
Term
 What grade of Surface Plate is meant to be used in a Machine Shop
Definition
Term
 What are the two types of Dividers?
Definition
 FIRM JOINT DIVIDERS SPRING JOINT DIVIDERS
Term
 HERMAPHRODITE CALIPERS ARE USED TO SCRIBE WHAT KIND OF LINE
Definition
 TO SCRIBE A LINE PARALLEL TO AN EDGE (DATUM)
Term
 What are the two parts that make up a Solid Square
Definition
Term
 What is a surface gauge used for
Definition
 Scribe horizontal lines parallel to the edge of a workpiece
Term
 What is the included angle of the point of a prick punch
Definition
 30 to 60 degrees
Term
 What is the included angle of the point on a centre punch
Definition
 90 degrees
Term
 What is the definition of Permanent Layout
Definition
 LIGHTLY PRICK PUNCHING MARKS AT REGULAR INTERVALS ALONG THE LAYOUT (SCRIBED) LINE
Term
 Which layout coating is used on Ferrous Metals only
Definition
 COPPER SULPHATE
Term
 What type of dimensioning can have an accumulation of error
Definition
 INCREMENTAL DIMENSIONING
Term
 Why would you put punch marks (witness marks) around the circumference of a laid out hole
Definition
 ACT AS A VISUAL AID WHEN DRILLING, TO SHOW IF THE DRILL IS OFF CENTER
Term
 What two things can Straight edges be used for
Definition
 TO CHECK A SURFACE FOR FLATNESS TO GUIDE A SCRIBER WHEN DRAWING LONG LINES
Term
 Which direction does the peen on a cross peen hammer point
Definition
 Across the axis of the handle (90 deg. to handle)
Term
 What are the three types of Screwdrivers commonly used in industry
Definition
Term
 how should a Flat screwdriver blade  be ground
Definition
 THE BLADE SHOULD BE GROUND CONCAVE
Term
 What are the three common types of scales used on Torque Wrenches
Definition
 INCH-POUNDS (in. lbs) FOOT-POUNDS (ft lbs) NEWTON METRES (Nm)
Term
 At what angle are the handles of box wrenches made from the surface of the work
Definition
 15 degrees
Term
 In which direction should the moveable jaw of an adjustable wrench face
Definition
 The moveable jaw should always face in the direction of rotation
Term
 What direction should the teeth point when the blade is mounted in a Hacksaw
Definition
 THE TEETH SHOULD BE POINTING AWAY FROM THE HANDLE
Term
 What are the two main types of Hacksaw Blades
Definition
Term
 What is the most common pitch of hacksaw blade for general shop use
Definition
Term
 What pitch of hacksaw blade should be used on soft material A) COARSE PITCH B) FINE PITCH
Definition
 A) COARSE PITCH
Term
 How many saw blade teeth must be in contact with the work at all times
Definition
 TWO OR THREE TEETH
Term
 What is the term used to identify the Hacksaws width of cut in the work material?
Definition
 KERF
Term
 What are the two types of blade sets used for hacksaws
Definition
 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)
Term
 What should be done if a hacksaw blade will not start easily in the material to be cut
Definition
 FILE A V-SHAPED NICK AT THE STARTING POINT
Term
 How many strokes per minute should you cut with a hacksaw
Definition
Term
 What should be done if a hacksaw blade breaks part way through a cut
Definition
 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
Term
 What can be done when sawing thin material to stop the blade from jamming into the work
Definition
 CLAMP THE THIN MATERIAL BETWEEN TWO PIECES OF BOARD
Term
 What part of a file allows the machinist to file up against a shoulder without damaging a finished surface
Definition
 A SAFE EDGE
Term
 What are the four basic styles of cut on files
Definition
 SINGLE-CUT DOUBLE-CUT CURVED TOOTH CUT RASP CUT
Term
 What are six different degrees of coarseness available on files
Definition
 ROUGH COARSE BASTARD SECOND-CUT SMOOTH DEAD SMOOTH
Term
 Does a 12” Bastard file and a 6” bastard file have the same distance between the teeth (pitch)?
Definition
 NO: AS THE FILE GETS SMALLER, THE DISTANCE BETWEEN THE TEETH ALSO GETS SMALLER
Term
 What are the five classes of files
Definition
 MILL OR SAW FILES (SAWMILL) MACHINIST SWISS PATTERN RASPS CURVED TOOTH
Term
 What type of filing method is used when large amounts of material has to be removed?
Definition
 CROSS FILING
Term
 What type of filing method is used when a good surface finish is required
Definition
 DRAW FILING
Term
 What type of file is used when Draw filing
Definition
 A SMOOTH SINGLE-CUT FILE
Term
 What type of file is preferred when filing on a lathe
Definition
 A LONG ANGLED LATHE FILE
Term
 How should a file be held when filing on a lathe
Definition
 IT SHOULD BE HELD IN THE LEFT HAND AND THE POINT SHOULD BE CONTROLLED WITH THE RIGHT
Term
 WHAT IS THE INCLUDED ANGLE OF A FLAT (COLD) CHISEL
Definition
 60 DEGREES
Term
 HOW SHOULD THE END OF A FLAT (COLD) CHISEL BE GROUND
Definition
 IN A CONVEX SHAPE
Term
 WHAT IS A CAPE CHISEL USED FOR
Definition
 NARROW GROOVES AND KEYSEATS
Term
 WHAT IS A ROUND NOSED CHISEL USED FOR
Definition
 OIL GROOVES
Term
 WHAT CHISELS SHOULD BE GROUND ON THE ANGLED FACE
Definition
 DIAMOND   ROUND NOSED
Term
 Below is an end view of a Hand Tap.  (a)What part is the arrow pointing to  (b) what is its function?[image]
Definition
 FLUTE   b.  IT PROVIDES SPACE FOR THE CHIPS    AND A PASSAGE FOR CUTTING FLUID
Term
 ¾ - 10 UNC 2A WHAT DOES THE 2 IN THE ABOVE THREAD CALL OUT REFER TO
Definition
Term
 ¾ - 10 UNC 2A WHAT DOES THE THE UNC IN THE ABOVE THREAD CALL OUT REFER TO
Definition
 UN:  UNIFIED NATIONAL  C :   COARSE
Term
 HOW MANY THREADS ARE TAPERED ON THE END OF A TAPER TAP
Definition
 SIX
Term
 HOW MANY THREADS ARE TAPERED ON THE END OF A PLUG TAP
Definition
 THREE
Term
 What is the Formula TO CALCULATE Tap Drill Size FOR AN IMPERIAL THREAD
Definition
 TAP DRILL SIZE = MD - PITCH                         OR   TAP DRILL SIZE = MD - 1/N   MD:  MAJOR DIAMETER
Term
 What is the Formula TO CALCULATE Tap Drill Size FOR A METRIC THREAD
Definition
 TAP DRILL SIZE = MD - PITCH                         OR   TAP DRILL SIZE = MD - 1/N   MD : MAJOR DIAMETER
Term
 What is the formula to calculate the Major Diameter of a Machine Screw
Definition
 MD = 0.060 + (# x 0.013) MD : MAJOR DIAMETER # : NUMBER OF MACHINE SCREW
Term
 WHAT IS THE FORMULA TO  CALCULATE THE PITCH OF A THREAD
Definition
 PITCH = 1 / NUMBER OF THREAD
Term
 M18 x 2 WHAT IS THE PITCH OF THIS THREAD
Definition
 2 M.M.
Term
 What are the three types in a set of Metric taps
Definition
 TAPER PLUG BOTTOMING
Term
 How often should you reverse the direction of a tap during a hand tapping operation
Definition
 EVERY QUARTER TO ONE-HALF TURN
Term
 What are Serial Taps used for
Definition
 TO CUT DIFFICULT-TO-TAP MATERIALS BY HAND
Term
 Which Die is used specifically for chasing (reconditioning) damaged or corroded threads
Definition
 SOLID DIES
Term
 Which Die has the greatest amount of adjustment
Definition
Term
 What is the purpose of a Hand Reamer
Definition
 A REAMER IS USED TO FINISH HOLES ACCURATELY TO SIZE AND GIVE A SMOOTH SURFACE FINISH
Term
 State the four types of Hand Reamers available
Definition
 SOLID REAMERS EXPANSION REAMERS ADJUSTABLE REAMERS TAPER REAMERS
Term
 What is the Taper per Foot of a Taper Pin Reamer
Definition
 ¼” Taper per Foot
Term
 What will happen if a Hand Reamer is turned in a Counter-Clockwise direction
Definition
 IT WILL QUICKLY DULL THE CUTTING EDGES
Term
 What is the length of the Starting Taper on a Hand Reamer approx equal to
Definition
 APPROX EQUAL TO THE DIAMETER OF THE REAMER
Term
 What is the difference in height between each tooth on a Broach?(not including the last 3 teeth)
Definition
 0.003” (3 thousandths of an inch)
Term
 What is the difference in height on the last 3 teeth of a Broach
Definition
 THEYARE ALL THE SAME HEIGHT TO PROVIDE THE FINAL KEYWAY SIZE AND A GOOD FINISH
Term
 What is used to increase the depth of a keyway when Broaching
Definition
 SHIMS
Term
 What type of Grinding wheel is generally mounted on a pedestal grinder
Definition
 ALUMINUM OXIDE
Term
 What type of Honing Stone is used for Carbide Cutting tools
Definition
 SILICON CARBIDE
Term
 What type of Honing Stone is used for High-Speed Steel cutting tools
Definition
 ALUMINUM OXIDE
Term
 What is the bond used on an abrasive cut-off wheel
Definition
 SYNTHETIC RESIN, PLASTIC, OR RUBBER
Term
 What is the finest grit of Lapping Paste (compound)
Definition
 600 GRIT
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