STUPIDSID
Answer any one question from Q1 & Q2
1 (a)
Define open system, closed system, internal energy, enthalpy.
8 M
1 (b)
Explain irreversibility, reasons and examples.
8 M
2 (a)
Define isolated system, isobaric process, isothermal process, cycle.
8 M
2 (b)
Explain heat engine and heat pump with formulas of efficiency and COP.
8 M
Answer any one question from Q3 & Q4
3 (a)
Classify boilers, and state any four mountings and 4 accessories.
8 M
3 (b)
Explain two stroke petrol engine with figure.
8 M
4 (a)
raw sketches and state uses of
i) impulse turbine ii) single acting reciprocating pump.
i) impulse turbine ii) single acting reciprocating pump.
8 M
4 (b)
Define Ton of refrigeration, pressure ratio of compressor, split AC, refrigeration effect.
8 M
Answer any one question from Q5 & Q6
5 (a)
State and explain Newton's law of cooling. A person is standing in a room which is at 20°C. Find rate of heat transfer from person, if exposed surface area and body temp. are 1.6 m2 and 36.7°C respectively. Given: convective heat transfer coefficient : 6W/m2k.
8 M
5 (b)
Describe hydro-electric power plant with figure.
8 M
5 (c)
Define thermal conductivity.
2 M
6 (a)
Explain concept of thermal resistance in series and parallel.
8 M
6 (b)
Describe Nuclear power plant with figure.
8 M
6 (c)
State Stefan Bolfzman's law.
2 M
Answer any one question from Q7 & Q8
7 (a)
Explain open belt and cross belt drive.
8 M
7 (b)
Explain with sketch : cone clutch and band brake.
8 M
8 (a)
Classify gears. State advantages of geardrive over belt drive.
8 M
8 (b)
Explain with sketch, types of keys and bevel gear.
8 M
Answer any one question from Q9 & Q10
9 (a)
Explain soldering and brazing processes.
8 M
9 (b)
escribe shearing, bending, squeezing and drawing operations for sheet metal.
8 M
10 (a)
Explain steps of design process.
8 M
10 (b)
Describe sand casting process.
8 M
Answer any one question from Q11 & Q12
11 (a)
Draw only block diagram of : center lathe machine. Explain any two operations.
8 M
11 (b)
Describe 4 operations on milling machine.
8 M
11 (c)
Sketch cylindrical grinding operation.
2 M
12 (a)
Draw block diagram of CNC machine, state advantages and applications.
8 M
12 (b)
Describe 4 operations on drilling machines.
8 M
12 (c)
Sketch centerless grinding.
2 M
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