Scribd
Upload
71 views2 pages

Aerospace Questions

This document contains summaries of two exam papers for engineering students: 1. An Aerospace Engineering exam covering topics like atmospheric temperature variations with altitude, drag calculations, high lift devices, and aircraft performance calculations. Questions assess various course outcomes related to aerodynamics and aircraft design. 2. A Design of Machine Elements exam covering failure theories, stress analysis, bolt and shaft design, stress concentration reduction methods, and plate thickness calculations. Questions assess outcomes involving materials properties, stress analysis, and mechanical component design principles. Both exams contain multiple choice questions worth 20 marks each to assess students' understanding of key aerospace and mechanical design concepts through practical calculations and applications of engineering fundamentals.

Uploaded by

anon_866893001
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
71 views2 pages

Aerospace Questions

This document contains summaries of two exam papers for engineering students: 1. An Aerospace Engineering exam covering topics like atmospheric temperature variations with altitude, drag calculations, high lift devices, and aircraft performance calculations. Questions assess various course outcomes related to aerodynamics and aircraft design. 2. A Design of Machine Elements exam covering failure theories, stress analysis, bolt and shaft design, stress concentration reduction methods, and plate thickness calculations. Questions assess outcomes involving materials properties, stress analysis, and mechanical component design principles. Both exams contain multiple choice questions worth 20 marks each to assess students' understanding of key aerospace and mechanical design concepts through practical calculations and applications of engineering fundamentals.

Uploaded by

anon_866893001
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
You are on page 1/ 2

Sree Chithra Thirunal College of Engineering

First series test – Sep 2019


Aerospace Engineering (S7 M)
Time: 2 hr. Max. marks: 100
Question No: 1 2 3 4 5 6 7 8

C.O. 1 2 2,3 2 2 1,2,3 3 1, 3

(Answer any five full questions)


(5X20=100)
1. (a) Explain why atmospheric temperature is decreasing with increase in altitude.
(b) Calculate the pressure, temperature and density at 12km altitude.
2. Using the method of dimensional analysis derive the expression of Drag
3. (a) Summarize wave drag?
(b) Explain the terms critical Mach number drag divergence Mach number.
(c) Draw and explain drag polar?
4. Explain induced drag related to a finite wing? Derive the expression for it.
5. Summarize high lift devices? Explain different types with diagrams.
6. Calculate the total drag developed when an air craft (A380) of mass 420ton flies at
300km/h. The density altitude is 5km and the coefficient of parasite drag is 0.002.
The Oswald efficiency factor for the flight is 0.85, span 79.8m, wing area 210m2.
7. Derive the condition for minimum power required for a level unaccelerated flight.
8. Calculate the Thrust and Power requirements of the flight mentioned in Question 6,
when it is executing a level unaccelerated flight.
Sree Chithra Thirunal College of Engineering
First series test – Sep 2019
Design of Machine Elements I (S7 M)
Time: 2 hr. Max. marks: 100
Question No: 1 2 3 4 5 6

C.O. 1,2 1 2,3 1 1 2,1

(Answer any five full questions, Use of approved Design data hand book is permitted)
(5X20=100)
1. (a) Explain different theories of failure.
(b) Classify different engineering materials and explain their relevant properties.
2. Calculate the maximum stress induced at points A and B for the structural member
of 10mm thickness shown in the following figure:
10kN
500mm
A

20kN
100mm

3. Design a bolt subjected to an axial tensile load of 16kN and shear load of 10kN. Use
common theories of failure.
4. What is stress concentration? Define stress concentration factor? Explain some
methods to reduce stress concentration.
5. Find the diameter of a rod subjected to a torque varying between 100Nm(Clockwise)
and 240Nm(Anticlockwise). Take the rod material as C 50 steel and factor of safety
as 2.5
6. Calculate the thickness of a plate required to take an axial load varying between 8kN
and 18kN. The plate is having a hole of 40mm diameter at it’s centre. The width of
the plate is 120mm

You might also like