SPECIAL JOB AND MAINTENANCE - Practice Mode
1) Which mandrel is manufactured in order to reduce the number of mandrel?
Correct Answer: Stepped mandrel
2) Which mandrels is NOT used in between lathe centres?
Correct Answer: Taper Shank mandrels
Explanation:
The specific gravity of a solid is the ratio of its density to the density of a reference material, typically water. To find the specific gravity of a solid if its density is known, you can divide its density by the density of water.
The density of water at 4 degree Celsius is 1 g/cm^3, so to find the specific gravity of the solid with a density of 19.5 g/cm^3: 19.5 g/cm^3 (density of solid) / 1 g/cm^3 (density of water) = 19.5 (specific gravity)
Therefore, the specific gravity of the solid is 19.5.
3) Which mandrel is used for machining similar part where internal diameter vary slightly?
Correct Answer: Expansion stud mandrel
4) What is the name of chuck that hardend steel sleeve having slits cut partly?
Correct Answer: Collect chuck