Part 2

Machine Tools and Measurement

• A bevel edge is a type of edge on a hand-held tap.
• A machinist combination is a type of tool.
• A solid beam is a type of micrometer.
• An adjustable micrometer is a type of measuring tool.

WHMIS Supplier Label

• The precautionary statement on a WHMIS supplier label deals with the handling and storage of the product.
• The label also includes information on the physical and health hazards of the product.

Hand-Held Tap

• The part of a hand-held tap that does most of the cutting is called the flute.
• The land is another part of a hand-held tap.
• The shank is the part of a hand-held tap that is held in the hand.

Hand Reamer

• A hand reamer has a negative rake angle on the cutting face.
• The rake angle of a hand reamer can be 0 to negative, 9 to negative, 14 to negative, or 21 to negative.

CNC Machines

• A single spindle-double turret on independent slides on a CNC machine allows for roughing and finishing operations to be done simultaneously.
• A CNC machine can machine different diameters at the same time.
• The tool holding capacity of a CNC machine is not decreased to allow for increased speed.

Lathe

• A micrometer stop is set up under the carriage of a lathe and disengages the feed lever.
• A block stop is another type of stop on a lathe.
• The turret stop and stop shaft are also types of stops on a lathe.

Electronics Industry Association

• The Electronics Industry Association uses a coding system with an odd parity format.
• The coding system does not use a discrete code, even parity format, or Hex/Dewey even parity.

CNC Program

• The G code G97 specifies that the enclosed circulating lubrication system is used.
• The G code does not specify that all information must be in the imperial measurement system, the drip feed lubrication system, or the splash lubrication system.

CNC Machine Coordinate System

• Machine zero on a CNC machine is the absolute reference point and origin of the machine coordinate system.
• It is not an unfixed reference point, a reference point on or off the workpiece, or a floating zero.

CNC Lathe

• The X-axis on a CNC lathe is parallel to the axis of the lathe and represents the movement of the carriage.
• The U, Y, and Z axes are not parallel to the axis of the lathe and do not represent the movement of the carriage.

CNC Terminology

• Odd parity in CNC terminology means that the number of wires from the controller to the hardware is always odd.
• It does not mean that each program character is represented in rows containing odd number holes, the RAM is sectored off in odd divisions, or the hard drive is mathematically tuned to mathematical operations that result in odd numbers.

CNC Machine Characteristics

• CNC machines are adaptable but not overly flexible.
• They are not hard wired, difficult to program, or have a read-write memory.

Revolving Centre

• A revolving centre is used when the entire length of the workpiece must be machined in one pass.
• It rotates on a bearing to prevent friction and heat buildup.
• It is not held in the tailstock spindle and does not turn, or use an eccentric or dovetail.

Lubrication Schedule

• A manufacture's lubrication schedule for a piece of equipment includes information on the kind of lubrication that must be used, the points on a machine that require lubrication, and the frequency at which the machine must be lubricated.

Servo Drive Control

• The servo drive control in a CNC machine develops appropriate signals from program data for driving servo motors.
• It is not the nerve centre of the CNC machine, does not consist of the RAM controlling specific stepper motors, or a type of transitional servo control.

Contour Band Saw

• The distance between the blade and the column on a contour band saw is commonly referred to as the throat distance.
• It is not referred to as the maximum work height, work distance, or jaw distance.

Toolholder

• A standard toolholder is not the titanium or carbide.
• A left-hand offset and right-hand offset are types of toolholders.

Machining

• Machining of curved surfaces is known as profiling.
• It is not known as encountering, undercutting, or facing.

Measurement Principle

• A linear encoder uses a direct measurement principle.
• It does not use a transitional, positional, or indirect measurement principle.

Drill Shanks

• Drill shanks larger than 1 inch are tapered.
• Shanks larger than 1/2 inch or 1/4 inch are not tapered.

Grinding Wheels

• The term "grit" refers to the abrasiveness of a grinding wheel.
• It does not refer to the bonding, rpm, or color.

CNC Combination Centre

• A CNC Combination Centre is designed for work that can be both turned and milled in one set up.
• It is not designed for work held in a chuck at one end and supported with a tailstock at the other, or built without a tailstock and having a short centre distance.

Tailstock Offset

• The calculated amount of tailstock offset to cut a taper is dependent on the large diameter, small diameter, taper length, and overall length.

Fractional Expression

• The fraction 1/2 is expressed as a percentage as 46.7%.
• It is not expressed as 0.47%, 4.7%, or 53.3%.

Decimal Expression

• 12.5% is converted to a decimal expression as 0.125.
• It is not converted to 12.5, 1.25, or 0.0125.

Taper Expression

• The amount of taper is expressed in the imperial system as taper per inch.
• It is not expressed as taper per 20 inches, taper per foot, or taper per mil.

Decimal Value

• The decimal value of 0.065 is expressed in words as sixty-five hundredths.
• It is not expressed as sixty-five, sixty-five tenths, or sixty-five thousandths.

Function Operation

• The result of the function operation is expressed in the lowest terms.

Unit Conversion

• 1 pound is equal to 0.454 kg.
• 125 lbs is equal to 56.7 kg.

Angle Calculation

• The value of angle θ is dependent on the values of and .

Blueprint Drawing

• The sum of the angles in a triangle will always equal 180 degrees.
• It will not always equal 90 degrees or 120 degrees.

Cutting Plane Line

• The function of a cutting plane line on a machinist blueprint is to indicate where the sectional view came from.
• It does not show that a part is the same on either side of the line, allow a shape to be drawn in less space, or determine the type of material to use.

Isometric Drawing

• The isometric drawing of a given orthographic drawing is a specific type of drawing.

Surface Finishes

• The term "nominal surface" refers to the intended surface of the workpiece as specified in the drawing.
• It does not refer to the pattern of groves or scratches left on the surface of a workpiece by the cutting action of the tool, the average deviation from the centerline measured in microinces or micro meters, or the greatest spacing between adjacent grooves or scratches.

Sliding Fit

• A close sliding fit is a type of fit where parts move and turn freely but are not intended to run freely.
• It is not a type of fit where parts run freely but at slow speeds and light journal presses, accurate location of parts without perceptible play, or accurate location of parts with moderate speeds and journal pressures.

Material Section Lines

• Material section lines on a blueprint represent different materials.
• The section line #3 represents a material section for steel.

Thread Assumption

• On a machinist blueprint, it is assumed that all threads are right-hand unless otherwise noted.
• It is not assumed that they are centered, left-hand, or rotated unless otherwise noted.

Machine Tools

• A bevel edge is a type of edge.
• A machinist combination is a type of ruler.
• A solid beam is a type of beam.
• An adjustable micrometer is a type of micrometer.

WHMIS Supplier Label

• The precautionary statement on the WHMIS supplier label deals with the handling and storage of the product.
• A statement that a MSDS (Material Safety Data Sheet) is available.
• It describes the physical and health hazards.

Hand-Held Tap

• The part of a hand-held tap that does most of the cutting is called the flute.
• The land is another part of a hand-held tap.
• The shank is also a part of a hand-held tap.

CNC Machines

• With CNC machines, a single spindle-double turret on independent slides allows for roughing and finishing to be done at the same time.
• Different diameters can be machined at the same time.
• Tool holding capacity is not decreased to allow for increased speed.

Lathe Stops

• The block stop is a type of stop that can be set up under the carriage of a lathe.
• The micrometer stop is another type of stop that can be set up under the carriage of a lathe.
• The turret stop is a type of stop that can be set up under the carriage of a lathe.
• The stop shaft is a type of stop that disengages the feed lever.

CNC Program

• The G code G97 specifies the enclosed circulating lubrication system.
• The drip feed lubrication system is another type of lubrication system.
• The ring oiler lubrication system is also a type of lubrication system.
• The splash lubrication system is another type of lubrication system.

Machine Zero

• Machine zero is the absolute reference point and origin of the machine coordinate system.
• It is an unfixed reference point that is established at start-up.
• It is a reference point on or off the workpiece.

CNC Axes

• The X axis is parallel to the axis of the lathe and represents the movements of the carriage.
• The Y axis is another axis that is used in CNC machines.
• The Z axis is also used in CNC machines.
• The U axis is not parallel to the axis of the lathe.

CNC Terminology

• Odd parity means that the number of ones in a binary code is always odd.
• It is not a characteristic of the RAM or hard drive.
• It is not related to the number of wires from the controller to the hardware.

CNC Machine Characteristics

• CNC machines are adaptable and flexible.
• They are not hardwired.
• They are not difficult to program.
• They have a read-write memory.

Revolving Centre

• A revolving centre is used when the entire length of the workpiece must be machined in one pass.
• It rotates on a bearing to prevent friction and heat buildup.
• It is held in the tailstock spindle and does not turn.
• It does not use an eccentric or dovetail.

Lubrication Schedule

• A lubrication schedule displays the kind of lubrication that must be used.
• It shows the points on a machine that require lubrication.
• It shows the frequency at which the machine must be lubricated.
• All of the above are displayed on a lubrication schedule.

Lathe Size

• The size of a lathe is determined by the largest diameter of workpiece that can be supported over the ways.
• It is also determined by the greatest length of workpiece that can be supported between centers.
• It is not determined by the horsepower input into the machine.

Dressing

• Dressing is the operation of cleaning or restoring the sharpness of a wheel that has become glazed.
• It is not the removal of material from the cutting face of a grinding wheel.
• It is not protecting mounting washers from abrasive grit.
• It is not a method of compensating for uneven surfaces.

Emulsifiable Oils

• Emulsifiable oils are used for their cooling properties.
• They are not used because they are man-made.
• They are not used because they are cheaper.
• They are not used for their qualities when cutting cast iron.

Stop Shaft

• A stop shaft is clamped to the ways to stop the movement of the carriage.
• It has six adjustable screws in an indexable head.
• It uses an adjustable screw for precise adjustment.
• It is not set up under the carriage to disengage the feed lever.

CNC Work

• Chucking work is when creating workpieces from raw material that is greater than three times its diameter.
• Mill work is a type of CNC work.
• Bar work is another type of CNC work.
• Shaft work is also a type of CNC work.

Lathe Terminology

• Backlash refers to the space between meshing gears.
• It is not the size of meshing gears.
• It is not a type of inverted prism design.
• It is not the bearing associated with the tailstock.

CNC Resolution

• Resolution refers to the smallest slide movement the machine can control and act upon.
• It is not the ability to consistently produce parts with little downtime.
• It is not the ability to repeat the same slide movements within the same tolerance.

Self-Driving Centre

• A self-driving centre is used when the entire length of the workpiece must be machined in one pass.
• It rotates on a bearing to prevent friction and heat buildup.
• It is held in the tailstock spindle and does not turn.
• It uses an eccentric or dovetail.

CNC Thread Cutting

• When cutting a 60-degree thread, the compound rest should be adjusted so the workpiece feeds at an angle of 29.5 degrees.
• It is not 60 degrees.
• It is not 45 degrees.
• It is not 15.5 degrees.

Band Saw Blades

• Bimetal band saw blades are usually the most expensive.
• Carbon steel band saw blades are less expensive.
• Tungsten carbide band saw blades are also less expensive.
• Abrasive band saw blades are less expensive.

CNC Zero Suppression

• Zero suppression allows dimensions to be written without the zeros in front of the decimal point.
• It is not used to reduce the number of zeros in the full format dimensions.
• It is not used to allow dimensions to be written without the zeros after the decimal point.
• It is not where eight digits are required for each dimension.

CNC Groove Cutting

• Cutting a groove into a workpiece is done to relieve strain at the shoulder.
• It is also done to allow a nut to tighten against a shoulder.
• It is also done to provide a seat for an O-ring or snap.
• All of the above are reasons to cut a groove into a workpiece.

CNC Bed Material

• Meehanite cast iron is a type of CNC bed material known for its excellent shock and vibration dampening.
• Concrete is another type of CNC bed material.
• Polymer is also a type of CNC bed material.
• Titanium alloys are not typically used as CNC bed material.

CNC Primary Axes

• There are 2 primary axes used on CNC lathes and turning centres.
• There are not 3 primary axes.
• There are not 4 primary axes.
• There is not 1 primary axis.

Historic Event

• World War Two had a large impact on the manufacturing sector.
• The creation of suburbs did not have a large impact on the manufacturing sector.
• The need for large farm equipment due to the opening of the west did not have a large impact on the manufacturing sector.
• The fall of the stock market did not have a large impact on the manufacturing sector.

Trade Mathematics

• A taper pin has a 1/4 inch taper per foot.
• A taper pin does not have a 1 inch taper per foot.
• A taper pin does not have a 1/2 inch taper per foot.
• A taper pin does not have a 3/4 inch taper per foot.

Taper Mandrel

• A taper mandrel is used in lathe work when a workpiece must be held by its bore.
• It has an internal taper only to accept the tapered shank of a drill.
• The outside of the spindle nose is not tapered.
• It is not designed to align a milling cutter and to release easily.

Triangle Perimeter

• The perimeter of a triangle with sides of 6 feet 4 inches, 8 feet 3 inches, and 10 feet 6 inches is 25 feet 1 inch.
• It is not 24 feet 3 inches.
• It is not 24 feet 6 inches.
• It is not 26 feet 2 inches.

Improper Fraction

• An improper fraction is a fraction where the numerator is equal to or greater than the denominator.
• It is not a fraction where the numerator and the denominator are always equal.
• It is not a fraction where the denominator is equal to or greater than the numerator.
• It is not a fraction that always has two numerators.

Steel Weight

• A stack of 43 pieces of the same material will weigh 2211 pounds.
• It is not 1465 pounds.
• It is not 3265 pounds.
• It is not 1987 pounds.

Side Measurement

• Side will be 8.34 inches when = 6 inches and = 4 inches.
• It is not 21.5 inches.
• It is not 7.21 inches.
• It is not 5.62 inches.

Safety and Measurement

• A Class D fire extinguisher is used to extinguish magnesium fires.
• A taper ring gauge is used to check the angle and diameter of a tapered bore.
• A ball-type small hole gauge is used to measure the size of a small bore.
• WHMIS (Workplace Hazardous Materials Information System) became law in Canada in 1988.
• The three elements necessary for a fire to occur are heat, fuel, and oxygen.
• Tolerance refers to the smallest division on a scale that can be read reliably.
• A precautionary statement on a WHMIS supplier label deals with the physical and health hazards of a product.
• The part of a hand-held tap that does most of the cutting is called the land.
• A hand reamer has a 0 to negative rake angle on the cutting face.

Machine Tools

• A single spindle-double turret on independent slides in CNC machines allows for different diameters to be machined at the same time.
• A block stop is set up under the carriage of a lathe and disengages the feed lever.
• The Electronics Industry Association uses an odd parity format in their coding system.
• The G code G97 in a CNC program specifies that all information must be in the metric measurement system.
• CNC work involving creating workpieces from raw material in the form of short slugs with lengths no greater than three times its diameter is called chucking work.
• A sliding headstock turning center is also known as the Swiss style turning center.
• Truing refers to the removal of material from the cutting face of a grinding wheel to restore its shape.
• Applying too much pressure to the fasteners of components when machining can cause the component to become deformed.
• A stop shaft is clamped to the ways of the lathe.
• A single spindle-double turret arrangement in CNC turning centers is used for high production machining.
• A self-driving centre is held in the tailstock spindle and does not turn.

CNC Machines and Lathe Operations

• Zero suppression in CNC machines allows dimensions to be written without the zeros in front of the decimal point.
• Cutting a groove into a workpiece can relieve strain at the shoulder, allow a nut to tighten against a shoulder, or provide a seat for an O-ring or snap.
• Meehanite cast iron is a type of CNC bed material known for its excellent shock and vibration dampening.
• CNC lathes and turning centers have 2 primary axes.
• World War Two had a large impact on the manufacturing sector.
• The calculated amount of tailstock offset to cut a taper can be calculated using the formula for taper length and diameter.

Mathematics and Conversions

• The fraction 1/2 can be expressed as a percentage as 46.7%.
• 12.5% can be converted to a decimal expression as 0.125.
• The amount of taper is expressed in the imperial system as taper per foot.
• The decimal value of 0.065 can be expressed in words as sixty-five thousandths.
• The result of the function can be expressed in the lowest terms as .
• 1 pound is equal to 0.454 kg, so 125 lbs is equal to 56.7 kg.
• The value of angle can be calculated using the formula for the sum of angles in a triangle, which is always equal to 180 degrees.