Match the following group 1 items with group 2 items and select the correct option.1. Radial piston motor ------------------- A. Swash plate2. Axial piston motor -------------------- B. Crank shaft3. Gerotor motor------------------------ C.Low torque4. Vane motor--------------------------- D.Orbit
A. 1-B, 2-A, 3-D, 4-C
B. 1-A, 2-C, 3-B, 4-D
C. 1-C, 2- A, 3-B, 4-D
D. 1-B, 2-D, 3-A, 4-C
查看答案
Motors used in high speed applications have
A. high torque with high speed
B. low torque with high speed
C. high torque with low speed
D. none of the above
Which of the following is a type of low-torque high-speed motor?
A. radial piston motors
B. axial piston motors
C. bent axis motor
D. gear motor
Which type of motion is transmitted by hydraulic actuators?
A. linear motion
B. rotary motion
C. both a and b
D. none of the above
5.基本呼吸中枢位于( )
A. 脊髓
B. 延髓
C. 脑桥
D. 下丘脑
E. 大脑皮层
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