A static thrust stand as sketched in the figure shown is used for testing a jet engine. The following conditions are known for a typical test: the fuel enters at a flow rate of 5 kg/s with approximate zero velocity. Intake air velocity is 215 m/s and exhaust gas velocity is 500 m/s; intake cross-sectional area is 1.2 m^2; intake static gauge pressure -30 kPa; intake air density is 0.9 kg/m^3 and exhaust static temperature 800 K; exhaust static pressure 0 kPa. If the atmospheric pressure is 100 kPa, the constant for air and gas is R= 28 J/(kg. K). The net linear momentum in kN is: Control volume Fuel inlet-- Select one:

Elements Of Electromagnetics
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A static thrust stand as sketched in the figure shown is used for testing a jet engine. The following conditions are known for a typical test: the fuel enters at a flow rate of 5 kg/s
with approximate zero velocity. Intake air velocity is 215 m/s and exhaust gas velocity is 500 m/s; intake cross-sectional area is 1.2 m^2; intake static gauge pressure -30 kPa;
intake air density is 0.9 kg/m^3 and exhaust static temperature 800 K; exhaust static pressure 0 kPa. If the atmospheric pressure is 100 kPa, the constant for air and gas is R= 287
J/(kg. K). The net linear momentum in kN is:
Control volume
Fuel inlet
Select one:
Patr
a. 63.68
b. 68.68
P1
C. -68.68
Section (2)
Section (1)
Transcribed Image Text:A static thrust stand as sketched in the figure shown is used for testing a jet engine. The following conditions are known for a typical test: the fuel enters at a flow rate of 5 kg/s with approximate zero velocity. Intake air velocity is 215 m/s and exhaust gas velocity is 500 m/s; intake cross-sectional area is 1.2 m^2; intake static gauge pressure -30 kPa; intake air density is 0.9 kg/m^3 and exhaust static temperature 800 K; exhaust static pressure 0 kPa. If the atmospheric pressure is 100 kPa, the constant for air and gas is R= 287 J/(kg. K). The net linear momentum in kN is: Control volume Fuel inlet Select one: Patr a. 63.68 b. 68.68 P1 C. -68.68 Section (2) Section (1)
A static thrust stand as sketched in the figure shown is used for testing a jet engine. The following conditions are known for a typical test: the fuel enters at a flow rate of 5 kg/s
with approximate zero velocity. Intake air velocity is 215 m/s and exhaust gas velocity is 500 m/s; intake cross-sectional area is 1.2 m^2; intake static gauge pressure -30 kPa;
intake air density is 0.9 kg/m^3 and exhaust static temperature 800 K; exhaust static pressure 0 kPa. If the atmospheric pressure is 100 kPa, the constant for air and gas is R= 287
J/(kg. K). The inlet air temperature in K is:
Control volume
Fuel inlet -
Select one:
a. 300.00
b. 271.00
P1
C. 251.00
Section (2)
Section (1)
Transcribed Image Text:A static thrust stand as sketched in the figure shown is used for testing a jet engine. The following conditions are known for a typical test: the fuel enters at a flow rate of 5 kg/s with approximate zero velocity. Intake air velocity is 215 m/s and exhaust gas velocity is 500 m/s; intake cross-sectional area is 1.2 m^2; intake static gauge pressure -30 kPa; intake air density is 0.9 kg/m^3 and exhaust static temperature 800 K; exhaust static pressure 0 kPa. If the atmospheric pressure is 100 kPa, the constant for air and gas is R= 287 J/(kg. K). The inlet air temperature in K is: Control volume Fuel inlet - Select one: a. 300.00 b. 271.00 P1 C. 251.00 Section (2) Section (1)
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