Basic Hydraulics Exam Questions with Correct Answers The ability of a fluid to penetrate into small clearances between closely fitted parts is determined by the fluid's - Answer -Viscosity The overall efficiency of a hydraulic motor is defined as the - Answer -Output horsepower divided by the fluid input Which of the following kinds of valves should be used in a hydraulic system to change the direction of motion of the cylinder? - Answer -Directional control valve Peak hydraulic system demands are usually met by the use of a(n) - Answer -
Accumulator The flow rate of hydraulic fluid through piping or tubing is measured in - Answer -gpm According to Bernoulli's Principle, when fluid flow increases in a system, the pressure - Answer -Decreases Pressure is measured in __________ in the English system - Answer -Pounds per square inch The force exerted by a double -acting piston is - Answer -Less on the rod side Mechanical shock is controlled in a hydraulic cylinder by means of a - Answer -
Cushioning device Which of the following is NOT needed in order to calculate the work a hydraulic cylinder can do? - Answer -Power A hydraulic fluid the exhibits little change in viscosity when heated is said to have a high - Answer -viscosity index A hydraulic fluid must be able to do all of the following EXCEPT - Answer -Compress easily A meter -out flow -control valve is used to regulate fluid flow from a(n) - Answer -Actuator
Accumulator The flow rate of hydraulic fluid through piping or tubing is measured in - Answer -gpm According to Bernoulli's Principle, when fluid flow increases in a system, the pressure - Answer -Decreases Pressure is measured in __________ in the English system - Answer -Pounds per square inch The force exerted by a double -acting piston is - Answer -Less on the rod side Mechanical shock is controlled in a hydraulic cylinder by means of a - Answer -
Cushioning device Which of the following is NOT needed in order to calculate the work a hydraulic cylinder can do? - Answer -Power A hydraulic fluid the exhibits little change in viscosity when heated is said to have a high - Answer -viscosity index A hydraulic fluid must be able to do all of the following EXCEPT - Answer -Compress easily A meter -out flow -control valve is used to regulate fluid flow from a(n) - Answer -Actuator
