Freebase (0.00 / 0 votes) Rate this definition: Tachypnea. Tachypnea is the condition of rapid breathing. In adult humans at rest, any rate between 12-20 breaths per minute is normal and tachypnea is indicated by a ventilatory rate greater than 20 breaths per minute.
A new tire retains a tread depth from 10/32 to 11/32. This tread depth is usually made to last anywhere from 3 to 5 years, depending on how well it is maintained. To measure the tread of a tire using an available chart, follow these steps: Insert a penny into the tire.
Panic Stopping: How Much Tread Depth Do You Need? (03:42) Category: Tires. Facebook; Twitter; Google+; Pinterest; Mail; Tires are usually considered legally worn out when they reach 2/32 of remaining tread depth. Concerned that nearly worn out tires sacrifice too much wet traction, we compared the stopping distances of new tires to those with 4/32 and 2/32 tread depth. The Tire Rack's test results might...