🔍 Key Concepts

• Identify the whole inch and tenth-inch value from the main (fixed) scale just to the left of the zero on the vernier scale in view F. • Determine the vernier alignment: find which vernier line best lines up with a line on the main scale to get the thousandths of an inch. • Remember that on this style of caliper, each small vernier division usually equals 0.001 inch (one-thousandth of an inch).

💭 Think About

• First, decide whether the main scale reading in view F is just over 2 inches or just over 3 inches by carefully noting the large number shown in the viewing window. • Count how many 0.025 or 0.050 inch increments have passed on the main scale before the vernier zero mark, then add the vernier reading for the final thousandths. • Compare your combined main-scale + vernier reading with each answer choice and see which is closest to what you see on figure F.

✅ Before You Answer

• Be sure you are reading figure F only, not A–E or G. • Confirm which main-scale mark is immediately to the left of the vernier zero; that sets the base inch and fraction. • Double-check which vernier line is in perfect alignment with a main-scale line; that line number gives the additional thousandths of an inch.