July Quiz 5

What colour is Skydrol?

• Purple

• Yellow

• Clear

• Blue

·         What is the purpose of a hydraulic accumulator?

• To relieve pressure

• To minimise pump cavitation

• To dampen pressure surges

•  

  To ensure an adequate supply of fluid to the EDP

·         What is the purpose of the undercarriage sequence valve?

•   Send pressure to the brakes

• Ensures that undercarriage door and gear operate in correct sequence

• Send pressure to retraction jack only

• Send pressure to uplock and downlock only.

·         What precaution would you take before removing the cap od a pressurised hydraulic reservoir?

• Isolate the electrical power

• Dissipate system pressure

• Wear the correct PPE

• Relieve the air pressure

What is the purpose of a hydraulic hand pump

• To restore system pressure to the reservoir after servicing

• To move the flap after the asymmetric brake has operated

• To restore pressure to the brake accumulator for ground use only

• To supply pressure to a failed escape slide

·         What is the purpose of a pressure control valve in a hydraulic system

• The ensure an adequate supply of fluid to the EDP

• Ensures fluid flow to non essential services

• Relieves pressure build up

• Regulates and controls pressure

·         Which component relieves excess pressure in a closed hydraulic system

•   Priority valve

• Thermal relief valve

• Shuttle valve

• draulic fuse

·         Hydraulic pumps which are driven electrically or pneumatically are known as

• Hydraulic Pressure producer

• EDPs

• Auxilliary pumps

• Auxilliary pumps

What is the purpose of a hydraulic actuator

• Transforms fluid pressure into static force

• Transforms fluid pressure to rotary or linear force

• Transfers fluid from the pressure side to the return side

• Transfers fluid from the boost system to the utility system

Which device will allow fluid to flow in a single direction

• Hydraulic actuator

• Check valve (NRV)

• Stop valve

•   Uni directional flow valve