Hydraulics & Pneumatics Test Questions


Q.  Which valve is also known as memory valve?

a. single pilot signal valve
b. double pilot signal valve
c. roller lever valve
d. logic valve


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  Which of the following statements are true? 1. Low viscosity fluids have higher leakage 2. High viscosity fluids have high pressure drop 3. Low viscosity fluids consume more power 4. Low viscosity leads to wear of components
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MCQs:  Pressure applied on a fluid in a container is equally distributed in all directions and acts with
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MCQs:  Which law explains the behavior of hydraulic fluids under pressure?
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MCQs:  Flow of oil in a pipe takes place due to
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MCQs:  Pressure drop in pipes, occurs due to
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MCQs:  How is laminar flow characterized in a straight pipe?
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MCQs:  Positive displacement pump used in hydraulic systems have
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MCQs:  Electric motor has a speed of 1200 rpm and output rate of pump is 6 cc/rev. Calculate flow rate of pump in l/min
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MCQs:  Calculate the power absorbed by the pump if, it has a flow rate of 20 cc/rev and develops a maximum pressure of 70 bar, when electric motor runs at a speed of 1200 rpm.
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MCQs:  Volumetric efficiency is the ratio of
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MCQs:  Which of the following is a hydrodynamic pump?
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MCQs:  What causes reduction in speed of the piston rod when the hydraulic cylinder is cushioned?
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MCQs:  Which of the following is a hydraulic cylinder based on application?
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MCQs:  What happens when supply of oil to a single acting cylinder is stopped?
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MCQs:  When does expansion of spring and retraction of cylinder take place in spring type single acting cylinder?
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MCQs:  Double acting cylinder can be used as a single acting cylinder
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MCQs:  In a telescopic cylinder, as the number of stages increase
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MCQs:  Why are bleed off circuits used?
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MCQs:  Which of the following is applicable for bleed off circuits?
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MCQs:  What is the function of sequence valve used in hydraulic circuits?
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