Title: Final Evaluation
Course: WISE Grant MFGT 155 Quality Assurance Fundamentals

Q: Evaluate the following expression:

−12 ÷ 2 =
- -6
- 6
- 24
- -24
A: -6

Q: Evaluate the following expression:

–6 – (–3) =
- -3
- -9
- 3
- 9
A: -3

Q: Solve the following algebraic equation:

2x + 2 = 15
- x = 6.5
- x = 7.5
- x = 13
- x = 26
A: x = 6.5

Q: Solve the following algebraic equation:

25x − 7 = 20 - 2x
- x = 1.0
- x = 6.67
- x = 0.565
- x = 0.48
A: x = 1.0

Q: Solve the following algebraic inequality:

3x −8 ≥ 19
- x ≥ 9
- x ≥ 11/3
- x < 9
- x < 81
A: x ≥ 9

Q: What is the area of a circular ring with an inner radius (r1) equal to 5.11 cm and an outer radius (r2) equal to 8.43 cm?
- 141.22 cm2
- 110.43 cm2
- 223.26 cm2
- 134.63 cm2
A: 141.22 cm2

Q: What is the perimeter of a regular hexagon with sides equal to 5 inches?
- 30 in
- 20 in
- 25 in
- 40 in
A: 30 in

Q: Angle A in a right triangle has tangent = 1.33 and cosine = 0.6. What is the sine of Angle A?
- 0.8
- 0.45
- 2.22
- Cannot be determined from the information given
A: 0.8

Q: If the sum of two angles in a triangle equals 100, what can be said about the third angle?
- It is acute.
- It is 90 degrees.
- It is obtuse.
- It is equal to the square root of the sum of the two angles.
A: It is acute.

Q: A storage tank holds 457 liters of a solution. A second tank holds 365 gallons. How much solution, measured in liters, do the two tanks hold?
- 1838.5 liters
- 2094.7 liters
- 822.0 liters
- 485.7 liters
A: 1838.5 liters

Q: Convert the decimal 0.00346787 into scientific notation.
- 3.46787 × 10–3
- 3.46787 × 10+3
- 346.787 × 10-6
- 34.6787 × 10–2
A: 3.46787 × 10–3

Q: The volume of a cube is equal to 4.5 m3. Express this volume in cubic inches.
- 274,576.3 in3
- 7776.0 in3
- 220.2 in3
- 158.9 in3
A: 274,576.3 in3

Q: Convert the number 9,785,000,000 into scientific notation.
- 9.785 × 10+9
- 9.785
- 97.85 × 10+8
- 9.785 × 10–9
A: 9.785 × 10+9

Q: Measurement is most important to which one of the following applications?
- All manufacturing
- Mass production of automotive parts
- Mass production of aircraft parts
- One of a kind handicraft
- Manufacturing of parts from prepared plans
A: All manufacturing

Q: Measurement involves three fundamental qualities; they are:
- mass
- roundness
- flatness
- time
- weight
- modulus of elasticity
- length
- width
- hardness
A: mass; time; length

Q: Select one or more of the following that are not considered to be dimensional metrology.
- selection of lubricant for given bearing allowance
- Torque requirement for a bolted assembly
- Rate of temperature rise for a bearing under load
- Bolt circle spacing
- Tolerance required for a shaft in a bearing
A: selection of lubricant for given bearing allowance; Torque requirement for a bolted assembly; Rate of temperature rise for a bearing under load

Q: Which of the following best defines “dimensional metrology?”
- Measurement of lines, areas, volumes, angles, and positional relationships
- The measurements required to manufacture products
- Measurements found by the use of scales and other measuring instruments
- Measurement of real things whether they be steel, wood, plastic, or any other material
- Measurement of lines, circles, and angles
A: Measurement of lines, areas, volumes, angles, and positional relationships

Q: Of the following characteristics, select the ones that affect quality control.
- Employee morale
- Pride of product
- Dimensional measurements
- Environmental conditions
- Product specifications
A: Employee morale; Pride of product; Dimensional measurements; Environmental conditions; Product specifications

Q: The role of the inspector in industry emerged as the result of which one of the following circumstances?
- The piece-part system was introduced.
- Weapons were first mass produced.
- Gunpowder changed the threat from weapons.
- Foremen could not keep up with mass production rates.
- Precision measurement tools such as the micrometer were introduced to industry.
A: The piece-part system was introduced.

Q: Which of the following characteristics are directly controlled by quality control personnel?
- Dimensional measurements
- Employee morale
- Pride of product
- Environmental conditions
- Product specifications
A: Dimensional measurements

Q: For every act of dimensional metrology one or more of the following variables may apply.  Identify the single most important variable.
- Reliability
- Number of decimal places
- Metric or customary system
- Repeatability
- Sensitivity
A: Reliability

Q: Ambiguity is the enemy of dimensional metrology.  Which of the following best describes a figure with four sides, each of which is 2 ½ inches in length?
- Parallelogram
- Square
- Parallepiped
- Polyhedron
A: Parallelogram

Q: The principal dimensional measurement is length.   Which of the following is the best definition of length?
- The number of units of measurement that separates two points
- The shortest distance between two points
- A dimension
- The opposite of width
A: The number of units of measurement that separates two points

Q: In which one or more of the following characteristics does a dimension differ from a length?
- A dimension is an intended size, whereas a length is the measured size.
- A length may be a decimal, but a dimension is a whole number.
- A dimension must be determined by measurement, whereas a length is stated on the drawing of the part.
- Lengths have tolerances, whereas dimensions do not.
A: A dimension is an intended size, whereas a length is the measured size.

Q: The primary purpose of dimensional measurement is to:
- communicate the designer’s intent
- show how precise a part is
- show how close the manufacturer can produce parts
- justify the price
A: communicate the designer’s intent

Q: Identify in which of the following situations dimensional metrology may not be needed:
- hand fitting one part to work in conjunction with another
- manufacturing farm machinery
- when tolerances are greater than ± 0.005 inch
- when fluctuating temperature causes parts to expand and contract continuously
A: hand fitting one part to work in conjunction with another

Q: When measurements are repeatedly taken on the same unit, the extent to which an instrument replicates its measurements is:
- precision
- accuracy
- range
- discrimination
A: precision

Q: Which of the following best describes the reference point?
- Point at which any measurement begins
- Position identified on a drawing as the end of a measurement
- Furthest point from the measured point
- Highest point above the reference plane
A: Point at which any measurement begins

Q: Which of the following is the end of a measurement?
- Measured point
- Measurement stop
- Instrument reading
- Congruent point
A: Measured point

Q: Part features designate the portion of a part that may be considered separately from the part itself.
- True
- False
A: True

Q: How many 0.001 inches are there in one inch?
- 1,000
- 100
- 1
- 10,000
A: 1,000

Q: Which of the following best describes an edge?
- The intersection of a plane with another plane
- The sharp corners of the part
- The cutting portion of an instrument
- A conical section
A: The intersection of a plane with another plane

Q: If 1 millimeter = 0.0394 inches, 700 millimeters equal how many inches?
- 27.58
- 275.8
- 35.53
- 0.003
A: 27.58

Q: The ability of two or more inspectors to obtain consistent results repeatedly when measuring the same set of parts using the same the same measuring instruments is called:
- reproducibility
- accuracy
- precision
- error
A: reproducibility

Q: One shooter fires 10 shots in a group 5 inches in diameter but all are off the target.  Then a second shooter has a group 10 inches in diameter but three shots are through the bulls-eye.  Which of the following statements are most likely to be correct?
- The first shooter is more precise but not as accurate as the second shooter.
- The second shooter is the luckiest
- The second shooter is both precise and accurate
- The first shooter is precise but inaccurate, whereas the second shooter is more precise and accurate.
A: The first shooter is more precise but not as accurate as the second shooter.

Q: Accuracy may be defined in several ways.  Which of the following is correct?
- Accuracy is the measure of conformity.
- Accuracy is the measure of precision.
- Accuracy is the measure of reliability.
- Accuracy is the best synonym for precision.
A: Accuracy is the measure of conformity.

Q: Which of the following terms relates most closely to precision?
- Refinement of measurement readings
- Close tolerance
- High machining cost
- Low quality compared with accuracy
A: Refinement of measurement readings

Q: Which of the following does reliability depend on?
- Both accuracy and precision
- High-end measurement instruments
- Lots of luck
- Limited production
A: Both accuracy and precision

Q: Can accuracy and precision be improved without respect for the other?  Select the most correct statement.
- Accuracy can have only limited increase without requiring an increase in precision.
- Neither can be changed without affecting the other.
- Either can be increased without affecting the other.
- Precision can be increased without an increase in accuracy.
A: Accuracy can have only limited increase without requiring an increase in precision.

Q: Tolerances are specified for machined parts for which of the following reasons?
- Manufacturing equipment has inherent variation, and to ensure proper fit between mating parts
- Manufacturing equipment has inherent variation
- To ensure proper fit between mating parts
- The designer wasn’t sure of the exact measurements to specify
A: Manufacturing equipment has inherent variation, and to ensure proper fit between mating parts

Q: What was the primary purpose of the earliest recorded standard?
- To ensure that parts mated in building construction
- To ensure fair payment of taxes
- To practice early medicine
- To mix cement in building the pyramids
A: To ensure that parts mated in building construction

Q: What is the chief similarity between the use of the first recorded standard and present-day practices?
- Requirement that working standards agree with the master standard
- High cost of reliable measurement
- Use of metal standards
- Need for inches and fractions of inches
A: Requirement that working standards agree with the master standard

Q: The English system and the metric system differ in the origin of their standards.  Which of the following best describes those origins?
- The metric standards were placed in force by the Revolutionary Committee, whereas the English standards were already in use.
- The metric standards were derived from the diameter of the earth, whereas the English standards were selected by the House of Parliament.
- Both were by decree of the existing governments.
- Metric standards derived from the standards in use by the crafts guilds, whereas the English standards were those used by the peasants and small merchants.
A: The metric standards were placed in force by the Revolutionary Committee, whereas the English standards were already in use.

Q: Why have light waves replace metal bars for the master standards of length?
- Light wave standards are more readily reproducible to greater accuracy than metal bars.
- The platinum-iridium bars are very expensive, but light is free.
- They are easier to use in the dark.
- The use of light waves avoids political considerations.
A: Light wave standards are more readily reproducible to greater accuracy than metal bars.