1
GATE ME 2006
+1
-0.3
In a Pelton wheel, the bucket peripheral speed is $$10$$ $$m/s,$$ the water jet velocity is $$25$$ $$m/s$$ and volumetric flow rate of the jet is $$0.1{m^3}/s.$$ If the jet deflection angle is $${120^0}$$ and the flow is ideal, the owe developed is:
A
$$7.5$$ $$kW$$
B
$$15.0$$ $$kW$$
C
$$22.5$$ $$kW$$
D
$$37.5$$ $$kW$$
2
GATE ME 2006
+1
-0.3
A large hydraulic turbine is to generate $$300$$ $$kW$$ at $$1000$$ $$rpm$$ under a head of $$40$$ $$m$$. for initial testing, a $$1:4$$ scale model of the turbine operates under a head of $$10$$ $$m.$$ the power generated by the model (in $$kW$$) will be
A
$$2.34$$
B
$$4.68$$
C
$$9.38$$
D
$$18.75$$
3
GATE ME 2006
+1
-0.3
A horizontal shaft centrifugal pump lifts ware at 65°C. The suction nozzle is one meter below pump centerline. The pressure at this point equal $$200$$ $$kPa$$ gauge and velocity is $$3$$ $$m/s.$$ Steam tables show saturation pressure at $${65^0}C$$ is $$25$$ $$kPa,$$ and specific volume of the saturated liquid is $$0.001020$$\$ $${m^3}/kg.$$ . The pump Net Positive suction Head ($$NPSH$$) in meters is A
$$24$$
B
$$26$$
C
$$28$$
D
$$30$$
4
GATE ME 2004
+1
-0.3
At a hydro electric power plant site, available head and flow rate are $$24.5$$ $$m$$ and $$10.1{m^3}/s$$ respectively. If the turbine to be installed is required to run at $$4.0$$ revolution per second ($$rps$$) with an overall efficiency of $$90\%$$, the suitable type of turbine for this site is _______________.
A
Francis
B
Kaplan
C
Pelton
D
Propeller
GATE ME Subjects
Engineering Mechanics
Machine Design
Strength of Materials
Heat Transfer
Production Engineering
Industrial Engineering
Turbo Machinery
Theory of Machines
Engineering Mathematics
Fluid Mechanics
Thermodynamics
General Aptitude
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