IDIS 403 CH 2 EXAM QUESTIONS ANSWERED CORRECTLY LATEST UPDATE 2026
__ indicates the rate at which work is done. - Answers Power
If 225 kg of force is exerted on a hydraulic cylinder, it is equal to __ lb of force. - Answers 495 (factor
of 2.2)
Pressure is typically measured in psi, bars, and __ - Answers kilopascals (kPa)
If a hydraulic cylinder needs to lift a bridge beam that weighs 60,000 lb and the piston in the cylinder
has a surface area of 113.10 sq in. then the hydraulic system must produce a pressure of __ psi. -
Answers 530.50
Most pump manufacturers recommend a vacuum rating less than or equal to __ in. Hg. - Answers
vacuum ratings depend on pump design and manufacturer specifications
A __ consists of a glass tube that is completely filled with mercury and closed on one end. - Answers
mercury barometer
__ energy is the energy of motion. - Answers Kinetic
A common form of inefficiency in a fluid power system is __ - Answers leaks, resistance to movement
of mechanical devices, resistance in pipes and hoses.
__ is anything that changes or tends to change the state of rest or motion of a body. - Answers Force
Fluid mechanics is comprised of static energy and __ energy. - Answers kinetic
Horsepower is a mechanical unit of measure equal to the force required to move 550 lbs, __ ft in __
sec. - Answers 1; 1
Energy from gears belts or pulleys is an example of __ energy. - Answers mechanical
The __ pressure gauge is the most commonly used fluid power pressure gauge in industry. - Answers
Bourdon tube
__ pressure is the amount of pressure above the existing atmospheric pressure and is used to
measure pressure inside a closed fluid power system. - Answers Gauge
__ is the usual amount of output energy from a fluid power system compared to the amount of input
energy. - Answers Fluid power system efficiency
__ pressure is equal to the sum of gauge pressure and atmospheric pressure. - Answers Absolute
Pressure in a hydraulic system is the resistance to __ - Answers flow
A __ pressure gauge has a tube that becomes straighter as pressure is increased. - Answers bourdon
tube
__ is used in a hydraulic system to allow fluid from the reservoir to travel into the pump. - Answers
vacuum
Schrader pressure gauges take measurements that are accurate to about +/- __ % - Answers 10
Hydraulic pressure is created when fluid flow from a hydraulic pump meets __ - Answers resistance
__ pressure is created by the weight of the atmosphere at sea level under standard air conditions. -
Answers Atmospheric
Cylinders and motors in a fluid power system are considered __ - Answers actuators
__ is the amount of weight in pounds that a fluid power system must produce to move an object -
Answers exerted force
A __ pressure gauge converts fluid pressure into an electrical signal. - Answers digital
__ must be overcome to perform work. - Answers resistance
__ is the number of unit squares equal to the surface of an object. - Answers Area
Digital pressure gauges are accurate from +/- __ % to __ % - Answers 0.1, 0.5
Fluid power system energy transmission is based on efficiency, power, and __ - Answers Work
__ is the force that stops, slows, or restricts the movement of fluid or devices in a fluid power system.
- Answers resistance
__ is any pressure less than atmospheric pressure. - Answers Vacuum
__ is the capacity to do work. - Answers Energy
A __ is used to measure atmospheric pressure using a column of mercury. - Answers mercury
barometer
__ energy involves the addition of heat to make a particle or molecule move faster. - Answers
Thermal
__ states that when a force is applied to a confined fluid, the force is felt throughout the fluid
undiminished. - Answers Pascal's law
__ indicates the rate at which work is done. - Answers Power
If 225 kg of force is exerted on a hydraulic cylinder, it is equal to __ lb of force. - Answers 495 (factor
of 2.2)
Pressure is typically measured in psi, bars, and __ - Answers kilopascals (kPa)
If a hydraulic cylinder needs to lift a bridge beam that weighs 60,000 lb and the piston in the cylinder
has a surface area of 113.10 sq in. then the hydraulic system must produce a pressure of __ psi. -
Answers 530.50
Most pump manufacturers recommend a vacuum rating less than or equal to __ in. Hg. - Answers
vacuum ratings depend on pump design and manufacturer specifications
A __ consists of a glass tube that is completely filled with mercury and closed on one end. - Answers
mercury barometer
__ energy is the energy of motion. - Answers Kinetic
A common form of inefficiency in a fluid power system is __ - Answers leaks, resistance to movement
of mechanical devices, resistance in pipes and hoses.
__ is anything that changes or tends to change the state of rest or motion of a body. - Answers Force
Fluid mechanics is comprised of static energy and __ energy. - Answers kinetic
Horsepower is a mechanical unit of measure equal to the force required to move 550 lbs, __ ft in __
sec. - Answers 1; 1
Energy from gears belts or pulleys is an example of __ energy. - Answers mechanical
The __ pressure gauge is the most commonly used fluid power pressure gauge in industry. - Answers
Bourdon tube
__ pressure is the amount of pressure above the existing atmospheric pressure and is used to
measure pressure inside a closed fluid power system. - Answers Gauge
__ is the usual amount of output energy from a fluid power system compared to the amount of input
energy. - Answers Fluid power system efficiency
__ pressure is equal to the sum of gauge pressure and atmospheric pressure. - Answers Absolute
Pressure in a hydraulic system is the resistance to __ - Answers flow
A __ pressure gauge has a tube that becomes straighter as pressure is increased. - Answers bourdon
tube
__ is used in a hydraulic system to allow fluid from the reservoir to travel into the pump. - Answers
vacuum
Schrader pressure gauges take measurements that are accurate to about +/- __ % - Answers 10
Hydraulic pressure is created when fluid flow from a hydraulic pump meets __ - Answers resistance
__ pressure is created by the weight of the atmosphere at sea level under standard air conditions. -
Answers Atmospheric
Cylinders and motors in a fluid power system are considered __ - Answers actuators
__ is the amount of weight in pounds that a fluid power system must produce to move an object -
Answers exerted force
A __ pressure gauge converts fluid pressure into an electrical signal. - Answers digital
__ must be overcome to perform work. - Answers resistance
__ is the number of unit squares equal to the surface of an object. - Answers Area
Digital pressure gauges are accurate from +/- __ % to __ % - Answers 0.1, 0.5
Fluid power system energy transmission is based on efficiency, power, and __ - Answers Work
__ is the force that stops, slows, or restricts the movement of fluid or devices in a fluid power system.
- Answers resistance
__ is any pressure less than atmospheric pressure. - Answers Vacuum
__ is the capacity to do work. - Answers Energy
A __ is used to measure atmospheric pressure using a column of mercury. - Answers mercury
barometer
__ energy involves the addition of heat to make a particle or molecule move faster. - Answers
Thermal
__ states that when a force is applied to a confined fluid, the force is felt throughout the fluid
undiminished. - Answers Pascal's law
