Different Types of Valves multiple choice questions
Different Types of Valves 1. In which of these treatment systems diaphragm valves are preferred? a) Moving Bed Bioreactor(MBBR) b) Desalination c) Ultrafiltration d) Demineralisation systems Answer: Demineralisation systems 2. Which of these are usually not preferred for frequent operation? a) Ball valve b) Plug valve c) Gate valve d) Butterfly valve Answer: Gate valve 3. Which of the following valves are used in high duty cycle applications? a) Check valve b) Clapper valve c) Ceramic disc valve d) Choke valve Answer: Ceramic disc valve 4. Which valve can be used in the service to handle fluids and gases and at the same time can be used for throttling as well? a) Butterfly valve b) Gate valve c) Plug valve d) Diaphragm valve Answer: Plug valve 5. In globe valves, the flow rate control is determined by _______ a) Size of the opening b) Lift of the valve plug c) Pressure difference d) Gravity Answer: Lift of the valve plug 6. Poppet valves are used in piston engines a) True b) False An