|
Q 1 a ) |
Define machine design. |
2 |
|
Q 1 b ) |
Give the composition of |
2 |
|
Q 1b)(ii)
|
2) Define : a) Ductility b) Toughness c) Creep |
8 |
|
Q 1 c ) |
State four types of loads acting on machine elements |
2 |
|
Q 1 d ) |
What do you mean by creep? |
2 |
|
Q 1 e ) |
Define Ergonomics. |
2 |
|
Q 1 n ) |
Draw stress – strain diagram for brittle material. |
2 |
|
Q 2 b ) |
State the theories of elastic failure. Explain maximum normal stress theory and maximum shear stress theory with equations. |
8 |
|
Q 2c)(i)
|
(i) State and describe in brief about four ergonomic considerations in the designing of machine elements. |
8 |
|
Q 3a)(i)
|
Explain with neat sketches only (i) Methods of reducing stress concentration in cylindrical members with shoulders. |
4 |
|
Q 3 c ) |
Define stress concentration. What are the causes of stress concentration? State any four methods of reducing stress concentration with neat sketches. |
8 |
|
Q 6b)(i)
|
Identyfiy the metrial and its compotion |
8 |
