Older American cars have spark plug gaps measured in inches. The range is between twenty-five thousandths and thirty-five thousandths of an inch. Which one of the following would be an acceptable measurement?
A)0.280 in.
B)0.0038 in.
C)0.038 in.
D)0.028 in.

Question

Quizplus · Accepted Answer

The acceptable range for spark plug gaps is between twenty-five thousandths (0.025 in) and thirty-five thousandths (0.035 in) of an inch. Option D has a measurement of 0.028 in, which falls within this range and is therefore an acceptable measurement. The other options (A, B, and C) are either too large or too small and are not acceptable measurements for spark plug gaps in older American cars.

Older American Cars Have Spark Plug Gaps Measured in Inches