The pressure loss at the pressure reducing valve in the hydraulic system belongs to
A. pressure loss along the way
B. local pressure loss
C. both
D. neither
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How is strong magnetic field in a solenoid achieved ?
A. strong magnetic field in a solenoid is achieved, if coil acts as conductor
B. coil is surrounded by a iron frame
C. iron core is placed at the centre of the coil
D. all the above
What is the DC range of of solenoids in pneumatic systems?
A. 12 V and 24 V
B. 110 V and 220 V
C. both a and b
D. none of the above
In which systems, spool of the servo valve is operated by a torque motor?
A. hydro-mechanical servo systems
B. electro-hydraulic servo systems
C. conventional servo valve
D. all the above
What does servo mean in servo valve system?
A. it cannot receive a feedback but the desired output can be obtained
B. it cannot receive a feedback and the desired output cannot be obtained
C. it can receive a feedback and the desired output can be obtained
D. none of the above
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