Hydraulics Revision Questions Flashcards
1
Q
The term ‘hydraulic Jack stalling’ means -
A. Low hydraulic pressure is preventing the Jack from moving to its limits
B. Contaminated fluid is jamming the Jack on its cylinder
C. Air pressure is preventing full extension of a particular Jack
D. The pneumatic system has taken over to prevent a runaway Jack moving
A
C. Air pressure is preventing full extension of a particular Jack
2
Q
In a hydraulic system with an operating pressure of 3000psi, an actuator measuring 10 by 10 inches would exert a force of -
A. 30lb
B. 300lb
C. 3000lb
D. 30000lb
E. 300000lb
A
E. 300000lb
3
Q
The system which is not common to both hydraulic and pneumatic systems is -
A. A filter
B. An accumulator
C. A pressure regulator
D. A restrictor valve
E. A shuttle valve
A
B. An accumulator
