0000EST 120121904

Module-III
10 a) What is HVAC system? Explain any three types of HVAC system. (4)
b) What is pile foundation? List out the classification of piles based on its
function. (0)
OR
11 a) List out the different floor covering materials. Explain the properties of any
two. (4)
b) Draw the plan and elevation of one brick thick wall with English bond (6)
‏د د د‎
PART 11: BASIC MECHANICAL ENGINEERING
Max. Marks: 50 Duration:90 min
PARTA
Answer all questions, each carries 4 marks.

12 Sketch the P-V and T-S diagram of diesel cycle and list the processes (4)
13 Define (i) Brake thermal efficiency (ii) Indicated thermal efficiency (4)
(iii) Mechanical efficiency and (iv) Volumetric efficiency of an IC engine.

14 Explain heating and Dehumidification process. Also show the process in (4)

psychrometric chart.
15 Describe the working of a single plate clutch. (4)
16 List down the typical applications of the following processes. (4)
Casting, Forging, Rolling and Extrusion.
PART ‏تا‎
‎Answer one full question from each module, each question carries 10 marks
Module-IV
17 In an air standard Diesel cycle, the compression ratio is 16 and at the (10)
beginning of compression the temperature is 15°C and the pressure is
0.1MPa. Heat is added until the temperature at the end of constant pressure
process is 1480°C.Calculate (1)The cut off ratio(2)The heat supplied per kg
of air(3)The cycle efficiency
OR
18 a) Explain the working of 2 stroke SI engine with neat sketches. (7)
b) Explain the fuel system for petrol engines. (3)

Page 2 of 3