题目

Flexible hose under pressure in a hydraulic system will （）.tend to twist about its long axis expand in length and in diameter contract in length and expand in diameter flex at right angles to the applied pressure

Flexible hose under pressure in a hydraulic system will （）.tend to twist about its long axis expand in length and in diameter contract in length and expand in diameter flex at right angles to the applied pressure

题目解答

答案

C