STUPIDSID
Explain any Four:
1 (a)
Safety Valve and Rupture disc.
5 M
1 (b)
Pressure Recovery Factor.
5 M
1 (c)
Piping geometry factor.
5 M
1 (d)
Control valve co-efficient and co-efficient of discharge.
5 M
1 (e)
Calibration technique of thermocouple.
5 M
2 (a)
Size the control valve for following data
Fluid = Benzene Flow=450 GPM D=6? schedule 40
P1=80 psia, P2=71 psia, Cd=25, T=52°R, G=0.88.
Fluid = Benzene Flow=450 GPM D=6? schedule 40
P1=80 psia, P2=71 psia, Cd=25, T=52°R, G=0.88.
10 M
2 (b)
Explain IP classification for control panel.
10 M
3 (a)
The following conditions are given with requirement that sound pressure level be below 87dbA
Q=295000 scfh, molecular weight=26.1
P1=60.5 psia, P2=30.25 psia, Temperature = 565°R, k=1.41
Pipe Diameter = 6"SCH 40, valve 4" high performance butterfly valve at following conditions FpCv=199, Fp=1, XTP=0.37=XT.
Q=295000 scfh, molecular weight=26.1
P1=60.5 psia, P2=30.25 psia, Temperature = 565°R, k=1.41
Pipe Diameter = 6"SCH 40, valve 4" high performance butterfly valve at following conditions FpCv=199, Fp=1, XTP=0.37=XT.
10 M
3 (b)
Explain the effect of Flashing and remedies to avoid it.
10 M
4 (a)
A 30° butterfly valve is to be operated under following conditions Fluid = water, flow rate = 25000 GPM P1=65 psia P2=49 psia Pv=0.6 psia, Inside diameter = 29.25?. What is the extent of cavitation?
10 M
4 (b)
Explain the effect of Cavitation and remedies to avoid it.
10 M
5 (a)
Design a control valve for following application:
Steam and Water flow at 280°F, Moisture fraction 5 percent, Flow rate W=1600 lb/hr
P1=29.8 psia, P2=19.7 psia, D=3?SCH 40 Vf=0.01700 feet3/lb Vg=13.841 feet3/lb, K=1.32, Cd=12.5, FL=0.86, XT=0.62.
Steam and Water flow at 280°F, Moisture fraction 5 percent, Flow rate W=1600 lb/hr
P1=29.8 psia, P2=19.7 psia, D=3?SCH 40 Vf=0.01700 feet3/lb Vg=13.841 feet3/lb, K=1.32, Cd=12.5, FL=0.86, XT=0.62.
10 M
5 (b)
Explain any two types of control panel in detail.
10 M
6 (a)
Packing and enclosure design guidelines.
10 M
6 (b)
Explain choked flow condition and compressibility factor for Gas flow condition.
10 M
Write a short note (Any Two):
7 (a)
Grounding and shielding of an electronic product.
10 M
7 (b)
Explain control room layout and its environment.
10 M
7 (c)
Ergonomics.
10 M
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