1) A metal rod is designed to be 10 cm long, but rods between 9.98 cm and 10.02 cm are acceptable. What concept does this range illustrate? a) Precision b) Tolerance c) Calibration d) Error of measurement 2) A machinist measures a part as 5.03 cm, but the actual length is 5.00 cm. What does the 0.03 cm difference represent? a) Standard b) Accuracy c) Error of measurement d) Repeatability 3) A technician uses a standard weight to adjust a scale so it shows the correct value. What process is being done? a) Variation b) Tolerance c) Calibration d) Precision 4) A caliper is used to measure the same bolt five times, and each time it shows 2.54 cm. What does this demonstrate? a) Calibration b) Repeatability c) Accuracy d) Variation 5) Three workers measure the same component and get slightly different results. What is being demonstrated? a) Accuracy b) Precision c) Variation d) Tolerance 6) To check if a gauge is accurate, a technician compares it to a certified reference block. What is the block an example of? a) Dimension b) Precision c) Tolerance d) Standard 7) A temperature sensor reads 100°C when placed in boiling water at sea level. What quality does this illustrate? a) Accuracy b) Repeatability c) Error of measurement d) Dimension 8) A scale gives readings of 1.01 kg, 1.01 kg, and 1.02 kg for the same object. What does this show? a) Variation b) Standard c) Precision d) Tolerance 9) Before manufacturing a new bracket, a team refers to a detailed diagram showing views and measurements of the part. What is this diagram called? a) Technical Drawing b) Calibration Sheet c) Inspection Report d) Measurement Log 10) A blueprint lists the length, width, and height of a housing component. What type of information is this? a) Error of measurement b) Dimensions c) Standards d) Repeatability 11) Which of the following measurements is the most precise? a) 7 mm b) 7.0 mm c) 7.00 mm d) 7.000 mm 12) Why is it important for engineers to understand tolerance, accuracy, and precision when designing mechanical parts? a) So they can make parts look more visually appealing b) To ensure parts are compatible, safe, and function as intended c) To avoid having to use measuring tools d) So parts are cheaper to produce regardless of quality

Measurement Practice 1

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