A. Gate
B. Butterfly
C. Needle
D. Globe
Related Mcqs:
- A 2″ gate valve fitted in a pipe is replaced by a similar globe valve. Pressure drop in gate valve was Δp. For the same discharge, the pressure drop across globe valve is__________________?
A. Δp
B. < Δp
C. > Δp
D. Δp2 - The valve used for very remote and accurate control of fluid is a _____________ valve?
A. Needle
B. Globe
C. Gate
D. Butterfly - For the same terminal conditions and valve size, the pressure drop in a fully opened globe valve as compared to that in a gate valve is___________________?
A. More
B. Less
C. Equal
D. Either A. or B.; depends on the viscosity of the fluid - The inherent characteristic of an equal percentage valve relating flow rate ‘q’ with valve stem movement ‘x’ are described by the equation_________________?
A. dq/dx = K
B. dq/dx = K.q
C. dq/dx = K/q
D. dq/dx = Kq2 - Foot valve provided in the pump is a ______________ valve?
A. Direction control
B. Back pressure
C. Relief
D. Pressure reduction - While starting an axial flow pump, its delivery valve should be kept _______________?
A. Open
B. Closed
C. Either open or closed
D. None of these - Check valve is used for ________________ flow?
A. Very precise control of
B. Unidirectional
C. Multidirectional
D. None of these - Check valve provided in the discharge line of a centrifugal pump serves the purpose of controlling the_______________?
A. Back flow of fluid in the event of stoppage of pump
B. Discharge pressure
C. Flow of liquid during operation of the pump
D. All A., B. and C. - Nature of fluid flow during the opening of a valve in a pipeline is_________________?
A. Laminar
B. Unsteady
C. Steady
D. Uniform - While starting a centrifugal pump, its delivery valve should be kept___________________?
A. Opened
B. Closed
C. Either opened or closed; it does not make any difference
D. Either opened or closed; depending on the fluid viscosity
