HYDRAULIC AND PNEUMATICS TEST QUESTIONS WITH CERTIFIED ANSWERS

HYDRAULIC AND PNEUMATICS TEST QUESTIONS WITH CERTIFIED ANSWERS The fluid power devices that convert the energy of a pressurized fluid into mechanical energy to do work are called what? - Answer-Actuators According to the relationship between force, pressure and area, the force may be calculated using what formula? - Answer-F=P*A Fluid pressure gauges commonly measure pressure? - Answer-Above atmospheric pressure. The pressure at sea level is called? - Answer-Atmospheric pressure. The annular area (A sub a) of a cylinder corresponds to? - Answer-The face area minus the rod area. A 3-way, 2-position directional control value cannot be used to? - Answer-Adjust pressure in two branch circuits. A 3-way, 2-position directional control value? - Answer-Can be spring return. A 3-way, 2-position directional control value can have? - Answer-Two envelopes and three fluid ports. What is the purpose of an intensifier? - Answer-To produce a high pressure form a low pressure source. Which of the following determines the pressure multiplication possible with an intensifier? - Answer-The ratio of areas. How can two cylinders can be synchronized? - Answer-Connecting them in series. The low pressure side of an intensifier is called? - Answer-Master cylinder. If two cylinders connected in series are of the same size and stroke, the downstream cylinder will extend. - Answer-Slower. When calculating the total piston area for the rod end of a cylinder? - Answer-The rod area must be subtracted from the piston area.