BT-203 (GS) – Basic Mechanical Engineering
• Attempt any five questions.
• All questions carry equal marks.
a)Unit 1Classify engineering materials. What do you mean by alloys? Write some applications of alloys.
Classify engineering materials. What do you mean by alloys? Write some applications of alloys.
b)Unit 1Define the following Mechanical properties:
i) Toughness,
ii) Brittleness,
iii) Tensile strength,
iv) Ductility.
Define the following Mechanical properties:
i) Toughness,
ii) Brittleness,
iii) Tensile strength,
iv) Ductility.
a)Unit 2Describe the construction and use of sine bar. How will you measure taper of a job with the help of a sine bar.
Describe the construction and use of sine bar. How will you measure taper of a job with the help of a sine bar.
b)Unit 1Describe the procedure of a tensile test. Explain the stress-strain curve for a ductile material.
Describe the procedure of a tensile test. Explain the stress-strain curve for a ductile material.
a)Unit 2With a neat diagram explain the main parts of a drilling machine? Explain any two operations performed on drilling machine.
With a neat diagram explain the main parts of a drilling machine? Explain any two operations performed on drilling machine.
b)Unit 3What is the basic principle of turbine? Classify various types of turbines according to type of energy, direction of flow head and specific speed.
What is the basic principle of turbine? Classify various types of turbines according to type of energy, direction of flow head and specific speed.
a)Unit 2Explain working of a thermocouple and radiation pyrometer with neat sketches.
Explain working of a thermocouple and radiation pyrometer with neat sketches.
b)Unit 3The water is flowing through a pipe having diameters 25cm and 10cm at section 1 and 2 respectively the rate of flow of water through the pipe is 30lit/sec. Section 1 is 10m above the ground and section 2 is 2m above the ground. If pressure at section 1 is 40N/cm², find the pressure at section 2.
The water is flowing through a pipe having diameters 25cm and 10cm at section 1 and 2 respectively the rate of flow of water through the pipe is 30lit/sec. Section 1 is 10m above the ground and section 2 is 2m above the ground. If pressure at section 1 is 40N/cm², find the pressure at section 2.
a)Unit 3Describe the construction and working principle of the pelton wheel?
Describe the construction and working principle of the pelton wheel?
b)Unit 4What is constant volume process? Derive expressions for the work done, change in internal energy heat transfer and change in enthalpy.
What is constant volume process? Derive expressions for the work done, change in internal energy heat transfer and change in enthalpy.
a)Unit 4Define internal energy and prove that energy is a property of a system?
Define internal energy and prove that energy is a property of a system?
b)Unit 4State the first law of thermodynamics for a closed system undergoing a cyclic process and non-cyclic process.
State the first law of thermodynamics for a closed system undergoing a cyclic process and non-cyclic process.
a)Unit 5Explain the structure and working of two stroke diesel engine with a neat sketch?
Explain the structure and working of two stroke diesel engine with a neat sketch?
b)Unit 5With the help of a neat sketch describe the construction and working of a steam engine?
With the help of a neat sketch describe the construction and working of a steam engine?
Unit 3/4/2/5Write short note on any three:
i) Newton's law of viscosity
ii) Zeroth law of thermodynamics
iii) Micrometer
iv) Centrifugal compressor
Write short note on any three:
i) Newton's law of viscosity
ii) Zeroth law of thermodynamics
iii) Micrometer
iv) Centrifugal compressor