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Quality Inspector

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Quality Inspector Certification

Study Guide

  1. How many minutes are in one degree of arc?
    1. 30
    2. 60
    3. 90
    4. 120

  2. From a 12" x 24" piece of sheet metal, how many 2" x 2" pieces can be sheared?
    1. 72
    2. 74
    3. 75
    4. 76

  3. If two angles are complementary, then both are
    1. acute.
    2. obtuse.
    3. right.
    4. left.

  4. How many .001 inches are there in one inch?
    1. 100
    2. 1,000
    3. 10,000
    4. 100,000

  5. If 1 mm = .0394 inches, 527 millimeters equal how many inches?
    1. 0.00007
    2. 20.76
    3. 13.375
    4. 249.0

  6. One of the applications of arrowheads on a drawing is to indicate
    1. break lines.
    2. center lines.
    3. object lines.
    4. cutting plane lines.

  7. What is the geometric characteristic of a reference plane?
    1. Hardness
    2. Height
    3. Squareness
    4. Flatness

  8. In a rectangular coordinate system of tolerancing in which the position tolerance in two directions has equal tolerance, which of the following is true about the resultant tolerance zone?
    1. It is square.
    2. It depends on the actual size of the feature.
    3. It is circular.
    4. There is no tolerance zone.

  9. Adjusting an instrument or device to a standard is called
    1. correction.
    2. angulation.
    3. correlation.
    4. calibration.

  10. To ensure continued accuracy, inspection devices must be periodically
    1. oiled.
    2. rust-proofed.
    3. calibrated.
    4. corrected.

  11. A scale that is graduated in hundredths of an inch will also show
    1. eighths.
    2. tenths.
    3. thirty-seconds.
    4. sixty-fourths.

  12. Sample selection of parts for inspection must be selected at random to ensure
    1. a minimum sample size.
    2. the probability of not rejecting the lot.
    3. the probability of accepting the lot.
    4. finding typical characteristics of the lot.

  13. Which of the following are bases for establishing calibration intervals?
    1. Stability
    2. Purpose
    3. Degree of usage

      1. I and II only
      2. I and III only
      3. II and III only
      4. I, II, and III

  14. Which of the following is in the class of vernier tools?
    1. Caliper
    2. Surface gauge
    3. Pneumatic gauge
    4. Sine bar

  15. Which of the following features of a surface plate accounts for the plate providing a reliable horizontal reference surface?
    1. Parallelism between top and bottom surfaces
    2. Smoothness
    3. Flatness
    4. Thickness

  16. When a hardness tester for calibration is checked, how many readings should be taken on a master and averaged for comparison to the master specification?
    1. 2
    2. 3
    3. 7
    4. 10

  17. In a normal curve, approximately what percentage of the area is included within 3 standard deviations of the mean?
    1. 50.0%
    2. 66.6%
    3. 95.0%
    4. 99.7%

  18. Specification limits are derived from which of the following?
    1. Process capability studies
    2. Process control charts
    3. Customer requirements
    4. Historical data

  19. The primary purpose of a control chart is to
    1. set specifications and tolerances.
    2. compare operations.
    3. determine the stability of a process.
    4. accept or reject a lot of material.

  20. What feature on a threaded plug gage helps to clear threaded holes of small, loose chips?
    1. Truncation
    2. Crest
    3. Chip groove or notch
    4. Helix variation

  21. The purpose of a thread go-plug gage is to
    1. check male threads.
    2. check female threads.
    3. check ring gages.
    4. measure pitch diameter.

  22. Gage blocks are used for
    1. measuring inside diameter.
    2. identifying cosine errors.
    3. making a transfer measurement.
    4. setting outside calipers.

  23. Which of the following authorities has the initial responsibility for product quality of manufactured goods?
    1. The inspector
    2. The reliability engineer
    3. The operator
    4. The quality manager

  24. For purposes of sampling inspection, the maximum percent defective that can be considered satisfactory as process average is the
    1. AOQ
    2. AOQL
    3. AQL
    4. ALQ

  25. On the screen of an optical comparator, what is the size of the image of .001 inch when magnified 31.25 times?
    1. 1/8 inch
    2. 1/16 inch
    3. 1/32 inch
    4. 1/64 inch

  26. The use of optical flats is dependent on reflected
    1. heat.
    2. sound.
    3. light.
    4. vibration

  27. A universal bevel protractor can be used to measure angles in
    1. thousandths of an inch.
    2. ninetieth parts of a circle.
    3. degrees only.
    4. degrees and minutes.

Answers
1. b 7. d 13. d 19. c 25. c
2. a 8. a 14. a 20. c 26. c
3. a 9. d 15. c 21. b 27. d
4. b 10. c 16. b 22. c  
5. b 11. b 17. d 23. c  
6. d 12. d 18. c 24. c  

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