STUPIDSID
Explain:
1 (a)
Static characteristics of an instrument?
5 M
1 (b)
Air service unit.
5 M
1 (c)
Cavitation and flashing phenomenon.
5 M
1 (d)
Control room illumination and communication.
5 M
2 (a)
Size the control valve for following data
Fluid = Water flowing at a rate of 2800 gpm
Temp = 15°C, Pipe diameter=12", P1=72.2 psia, P2=64.1 psia, Cd=17 Valve used is 60° butterfly valve.
Fluid = Water flowing at a rate of 2800 gpm
Temp = 15°C, Pipe diameter=12", P1=72.2 psia, P2=64.1 psia, Cd=17 Valve used is 60° butterfly valve.
10 M
2 (b)
Determine the correct valve size for following data? Also check for flashing
Fluid = Hydrocarbon having specific weight of 36.17 lb/ft3.
W=50000 lb/hr Pc=591 psia D=4? scheduled 40
P1=62.0 psia, P2=14.7 psia, Cd=5
PVP=38.67 psia, FL=0.79 T1=560°R.
Fluid = Hydrocarbon having specific weight of 36.17 lb/ft3.
W=50000 lb/hr Pc=591 psia D=4? scheduled 40
P1=62.0 psia, P2=14.7 psia, Cd=5
PVP=38.67 psia, FL=0.79 T1=560°R.
10 M
3 (a)
Size the control valve for following data
Fluid = Air and water, Pipe diameter = 10? scheduled 40
P1=50 psia, P2=40 psia, Cd=20
Temp=520°R, Wg=3000 ib/hr Wf=150000 ib/hr
FK=1 XT=0.38 psia,
Valve used = 60° butterfly valve.
Fluid = Air and water, Pipe diameter = 10? scheduled 40
P1=50 psia, P2=40 psia, Cd=20
Temp=520°R, Wg=3000 ib/hr Wf=150000 ib/hr
FK=1 XT=0.38 psia,
Valve used = 60° butterfly valve.
10 M
3 (b)
A valve is required to meet the following conditions
Fluid=CO2 M=44 K=1.28
Tc=88°f Pc=1073 psia T1=548°R
P1=557.7 psia P2=414.7 psia D=3? schedule 40
Cd=14 XT=0.75 Z=0.80.
Fluid=CO2 M=44 K=1.28
Tc=88°f Pc=1073 psia T1=548°R
P1=557.7 psia P2=414.7 psia D=3? schedule 40
Cd=14 XT=0.75 Z=0.80.
10 M
4 (a)
Given
P1=125 psia P2=65 psia Pipe=2? schedule 40
O.D.=2.375? Cv=35, XT=0.70 t=0.154?
Insulation = 1? thermal (4dB/inch)
Location = open area 30? above ground
Find predicted sound pressure level at 1.2 meter downstream of valve and 1 meter horizontally from pipe surface.
P1=125 psia P2=65 psia Pipe=2? schedule 40
O.D.=2.375? Cv=35, XT=0.70 t=0.154?
Insulation = 1? thermal (4dB/inch)
Location = open area 30? above ground
Find predicted sound pressure level at 1.2 meter downstream of valve and 1 meter horizontally from pipe surface.
10 M
4 (b)
Explain the path treatment of valve noise reduction.
10 M
Explain selection criteria and design consideration for:
5 (a)
Control valve actuator.
10 M
5 (b)
Rapture disc and Relief Valve.
10 M
6 (a)
Explain in detail the following phases involved in electronic product design
i) Design Phase
ii) Engineering Phase
i) Design Phase
ii) Engineering Phase
10 M
6 (b)
Explain control panel design consideration.
10 M
Write a short note on:
7 (a)
IP classification for control panel.
10 M
7 (b)
Significance of grounding and shielding.
10 M
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