Casting, Forming and Welding I Practice Test 9

1. In the case of steel castings, the salvaging operations are costlier than the conversion operations.

2. Residual stresses can also be calculated the same way as the stresses due to the external loads is calculated.

3. In electric arc wire spray process, the atomizing air pressure is the only significant variable for controlling the surface layers.

4. Analysis of frictional concept at the interface is very important and necessary for the increase in casting speed.

5. Predominant resistance in mould of casting system generally produces castings of brittle nature.

6. The heat transfer through the interface of metal and mould is always considered as of convection mode.

7. Inspection of quality in a unit casting is much easier and beneficial, rather than inspecting it by separating the entire casting.

8. A large size of riser should be placed on the casting system to compensate the solid shrinkage of the casting.

9. Which of the following parts of castings are mostly salvaged with defective cast cooling bumps?

10. Without knowing the conditions or details about the castings, salvaging can even destroy or damage the whole casting.