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Recent questions and answers in Applications
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GATE2018223
An engine operates on the reversible cycle as shown in the figure. The work output from the engine (in (kJ/cycle) is ____ (correct to two decimal places).
answered
Apr 26, 2019
in
Applications
by
GG
(
180
points)
gate2018me2
numericalanswers
0
votes
0
answers
ISRO200910
At the eye tip of a centrifugal impeller, blade velocity is $200 \: m/s$ while the uniform axial velocity at the inlet is $150 \: m/s$. If the sonic velocity is $300 \: m/s$, then the inlet Mach number of the flow will be $0.75$ $0.66$ $0.90$ $0.83$
asked
Mar 6, 2018
in
Applications
by
m2n037
(
940
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isro2009
0
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0
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ISRO20096
A necessary percaution in selection of pumps for parallel operations is that HQ characteristics of both should be identical Both pumps should be centrifugal type Both pumps should be identical' There should not be change from positive to negative slope in HQ curve
asked
Mar 6, 2018
in
Applications
by
m2n037
(
940
points)
isro2009
0
votes
0
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ISRO20093
The correct sequence of the centrifugal pump components through which the fluid flows is Impeller, Suction pipe, Foot valve and strainer, Delivery pipe Foot valve and strainer, Suction pipe, Impeller, Delivery pipe Impeller, Suction pipe, Delivery pipe, Foot valve and strainer Suction pipe, Delivery pipe, Impeller, Foot valve and strainer
asked
Mar 6, 2018
in
Applications
by
m2n037
(
940
points)
isro2009
0
votes
0
answers
GATE2018255
A vehicle powered by a spark ignition engine follows air standard Otto cycle ($\gamma =1.4$). The engine generates $70$ kW while consuming $10.3$ kg/hr of fuel. The calorific value of the fuel is $44,000 \: kJ/kg$. The compression ratio is _________ (correct to two decimal places.
asked
Feb 17, 2018
in
Applications
by
Arjun
(
21.2k
points)
gate2018me2
numericalanswers
0
votes
0
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GATE2018245
A test is conducted on a onefifth scale model of a Francis turbine under a head of $2 \: m$ and volumetric flow rate of $1 \: m^3/s$ at $450 \: rpm$. Take the water density and the acceleration due to gravity as $10^3 \: kg/m^3$ ... prototype turbines. The power (in MW) of a full sized turbine while working under a head of $30 \: m$ is _______ (correct to two decimal places)
asked
Feb 17, 2018
in
Applications
by
Arjun
(
21.2k
points)
gate2018me2
numericalanswers
0
votes
0
answers
GATE2018242
Air is held inside a noninsulated cylinder using a piston (mass $M=25 \: kg$ and area $A=100 \: cm^2$) and stoppers (of negligible area), as shown in the figure. The initial pressure $P_i$ and temperature $T_i$ ... of the air inside the cylinder ($^{\circ}C$) at which the piston will begin to move is ______ (correct to two decimal places).
asked
Feb 17, 2018
in
Applications
by
Arjun
(
21.2k
points)
gate2018me2
numericalanswers
0
votes
0
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GATE2018211
Select the correct statement for $50\%$ reaction stage in a steam turbine. The rotor blade is symmetric The stator blade is symmetric The absolute inlet flow angle is equal to absolute exit flow angle The absolute exit flow angle is equal to inlet angle of rotor blade
asked
Feb 17, 2018
in
Applications
by
Arjun
(
21.2k
points)
gate2018me2
0
votes
0
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GATE2018145
Steam flows through a nozzle at a mess flow rate of $m=0.1 \: kg/s$ with a heat loss of $5 \: kW$. The enthalpies at inlet and exit are $2500 \: kJ/kg$ and $2350 \: kJ/kg$, respectively. Assuming negligible velocity in inlet ($C_1 \approx 0$), the velocity ($C_2$) of steam (in $m/s$) at the nozzle exit is _____ (correct to two decimal places).
asked
Feb 17, 2018
in
Applications
by
Arjun
(
21.2k
points)
gate2018me1
numericalanswers
0
votes
0
answers
GATE2018146
An engine working on air standard Otto cycle is supplied with air at $0.1 MPa$ and $35^{\circ} \: C$. The compression ratio is $8$. The heat supplied is $500 \: kJ/kg \: K$. The maximum temperature (in $K$) of the cycle is _______ (correct to one decimal place)
asked
Feb 17, 2018
in
Applications
by
Arjun
(
21.2k
points)
gate2018me1
numericalanswers
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