题目
Flexible hose under pressure in a hydraulic system will （）.A. tend to twist about its long axisB. expand in length and in diameterC. contract in length and expand in diameterD. flex at right angles to the applied pressure
Flexible hose under pressure in a hydraulic system will （）.
A. tend to twist about its long axis
B. expand in length and in diameter
C. contract in length and expand in diameter
D. flex at right angles to the applied pressure
题目解答
答案
C. contract in length and expand in diameter