Related Questions

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
In pneumatic control systems the control valve used as final control element converts
A Pressure signal to electric signal
B Pressure signal to position change
C Electric signal to pressure signal
D Position change to pressure signal
Main gas valve in a gaseous fuel burner is a __________ valve.
A Gate
B Butterfly
C Globe
D None of these
The displacement of the D-slide valve is __________ the steam lap by a distance known as lead of the valve.
A Greater than
B Less than
C Equal to
D None of these
Foot valve provided in the pump is a __________ valve.
A Direction control
B Back pressure
C Relief
D Pressure reduction
I use my TV remote control to change channels, ....
A . to adjust the volume, and turning the set on and off
B . to adjust the volume, and to turn the set on and off
C . adjusting the volume, and to turn the set on and off
D . adjusting the volume, and turning the set on and off
Which one of the following does a TV remote control unit use to operate a TV set?
A Light waves
B Sound waves
C Micro waves
D Radio waves
The mixing vat in a factory receives liquid ingredients through six separate value--- labeled R.S.T.U,Y and Z -- each of which has exactly two settings: open and closed.The mixing vat operator must ensure that each valve is set open or closed according to the following conditions: If T is open, both S and Z must be closed, R and Z cannot both be closed at the same time; If Y is closed, Z must also be closed;S and U cannot both be open at the same time. Which of the following, if given to the mixing vat operator as an instruction, would not determine the setting of any other valve ?
A S must be open
B T must be open
C U must be open
In Meyer's expansion valve, the expansion valve is driven by an eccentric having an angle of advance from
A 50° - 60°
B 60° - 70°
C 70° - 80°
D 80° - 90°

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