• Attempt any five questions.
• All questions carry equal marks.
Define alloy steel. Explain the effect of alloying elements on steel properties.
Describe important phases and critical points in the Iron-Carbon diagram with the help of sketch.
Define lathe. Explain the main parts of a lathe machine with neat sketch.
List the different types of temperature measuring instruments. Also explain the working of optical pyrometer.
Derive Bernoulli's equation for incompressible fluids. Also discuss its physical significance.
Explain the construction and working principle of a reciprocating pump.
Define draught. Explain natural draught and its working.
Define the following Statements of second law of thermodynamics: (i) Clausius statement, (ii) Kelvin-Plank statement.
Explain the Diesel cycle with P-V and T-S diagram. Also Derive the efficiency of the Diesel cycle.
Explain the working of a four-stroke petrol engine with neat sketch.
Describe tensile testing and explain stress-strain diagram of ductile materials.
Define compressor. Explain the working principle of a reciprocating air compressor.
Define boiler. Explain the classification of boilers also explain any one of them.
Explain the following: (i) Homogeneous and heterogeneous fluids, (ii) Newton's law of viscosity.
Explain the construction and working principle of a dial gauge with its applications.
Define modulus of elasticity. Explain Young's modulus, bulk modulus and shear modulus.
