Which of the following statements is correct...

🔍 Key Concepts

• Carefully distinguish between length dimensions (along the shaft) and diameter dimensions (across the shaft). • Understand how threads are called out on a mechanical drawing, including the difference between pipe tap (usually internal) and external threads. • Notice how maximum and minimum diameters are shown with tolerance limits (e.g., two numbers stacked, like 1.522 / 1.5xx).

💭 Think About

• Look at where the 0.64 dimension arrows start and end. Is this showing a change in diameter (a step) or just the axial length of a cylindrical section? • Compare the text near the threaded portions: does it say 1-inch pipe thread on the outside of the shaft, or something else (e.g., a different diameter and a pipe tap inside)? • Find the largest diameter callout on the drawing. Does the note or tolerance there support the claim about the maximum shaft diameter?

✅ Before You Answer

• Verify whether the 0.64 dimension is parallel to the shaft centerline (length) or perpendicular (diameter). • Check if the notation "1.125 NF THD (BOTH ENDS)" and "1/8 PIPE TAP (BOTH ENDS)" match the description of 1-inch external pipe thread. • Confirm from the front view which circle represents the maximum outside diameter and read its full dimension (both upper and lower tolerance values).

Which of the following statements is correct regarding the device shown in the illustration? See illustration GS-0008.

The areas dimensioned 0.64 in length are flats on the shaft.

The areas dimensioned 0.64 in length are steps in the shaft diameter.

The maximum diameter of the shaft is 1.522 inches.

Both ends of the shaft have 1 inch external pipe thread.

🔍 Key Concepts

💭 Think About

✅ Before You Answer