BT-203 (GS) – Basic Mechanical Engineering
• Attempt any five questions.
• All questions carry equal marks.
a)Unit 1What is the necessity of Alloying? What are alloy steels, and how do they differ from carbon steels?
What is the necessity of Alloying? What are alloy steels, and how do they differ from carbon steels?
b)Unit 1What is the purpose of hardness testing in materials and how it is performed?
What is the purpose of hardness testing in materials and how it is performed?
a)Unit 1Write in detail classification of cast irons along their applications.
Write in detail classification of cast irons along their applications.
b)Unit 2Explain the working principles of Drilling machine and different parts of it indicating with line diagram.
Explain the working principles of Drilling machine and different parts of it indicating with line diagram.
a)Unit 2Give in detail the flow chart followed in preparation of sand casting.
Give in detail the flow chart followed in preparation of sand casting.
b)Unit 2Write short notes on:
i) Vernier caliper,
ii) Micrometer,
iii) Dial gauge.
Write short notes on:
i) Vernier caliper,
ii) Micrometer,
iii) Dial gauge.
a)Unit 3Explain how hydraulic turbines convert fluid energy into mechanical energy. Discuss the types of hydraulic turbines and their applications.
Explain how hydraulic turbines convert fluid energy into mechanical energy. Discuss the types of hydraulic turbines and their applications.
b)Unit 3Define and distinguish between:
i) Uniform flow and non-uniform flow,
ii) Laminar and turbulent flow,
iii) Newtonian and Non-Newtonian flow.
Define and distinguish between:
i) Uniform flow and non-uniform flow,
ii) Laminar and turbulent flow,
iii) Newtonian and Non-Newtonian flow.
a)Unit 3State Newton's law of viscosity and explain its significance. Describe how viscosity is related to shear stress and shear rate in Newtonian fluids.
State Newton's law of viscosity and explain its significance. Describe how viscosity is related to shear stress and shear rate in Newtonian fluids.
b)Unit 4Differentiate between boiler mountings and accessories. Discuss the role of boiler accessories in enhancing efficiency and safety in boiler systems.
Differentiate between boiler mountings and accessories. Discuss the role of boiler accessories in enhancing efficiency and safety in boiler systems.
a)Unit 4Define thermodynamic system and explain open, close and isolated systems.
Define thermodynamic system and explain open, close and isolated systems.
b)Unit 4What does the First Law of Thermodynamics state, and how does it relate to the conservation of energy?
What does the First Law of Thermodynamics state, and how does it relate to the conservation of energy?
a)Unit 5With a neat sketch, explain the working of Diesel and derive the expression for thermal efficiency.
With a neat sketch, explain the working of Diesel and derive the expression for thermal efficiency.
b)Unit 5Write about the various processes involved in Dual cycle with P-V and T-S diagrams.
Write about the various processes involved in Dual cycle with P-V and T-S diagrams.
a)Unit 5Explain the working of a 4 stroke diesel engine with neat sketch.
Explain the working of a 4 stroke diesel engine with neat sketch.
b)Unit 1Explain in detail Classification of engineering material along their applications.
Explain in detail Classification of engineering material along their applications.