cameroon gce intermediate level material technology and workshop processes 2
cameroon gce intermediate level material technology and workshop processes 2
a. Define the following with respect to workshop processes (1 markx5)
| i. ii. iii. iv. |
Normalizing Annealing. Hardening. Tempering |
v. Case hardening
b. Give one example each of vehicle parts, that are made from the above processes. (0.5 markx5)
c. List five reasons for heat treating metals. (0.5 markx5)
2. A mild steel engine bolt when correctly tightened provides a tensile load of 3Kn. The bolt is 300mm long and
has a diameter of 15mm. Calculate the stress on the material. How much will the bolt extend? For mild steel
E=200×109N/m2=200GN/m2.
(5mks+5mks=10marks)
kemmoue driscol
November 8, 2022
past question needed