Oilers/Plant Tenders (HHC) Civil Service Practice Exam

Which factor least affects the time required to cut off a 1" diameter rod, 6" long?

1. Type of cutting tool used

2. Length of the rod

3. Experience of the worker

4. Speed of the cutting machine

The correct answer is: Length of the rod

The length of the rod has relatively less impact on the time required to cut a 1" diameter rod, 6" long compared to the other factors listed. This is because the cutting process involves more critical variables such as the type of cutting tool being used, which can significantly influence cutting speed and efficiency. The characteristics of the tool, like sharpness and material, directly affect how quickly it can penetrate and cut through the material. Additionally, the experience of the worker plays a vital role in determining how efficiently and effectively they can operate both the tool and machine. A more experienced worker can anticipate challenges and utilize the equipment to its full potential, which can markedly decrease cutting time. The speed of the cutting machine also bears significant relevance. A faster machine can reduce the overall cutting time, assuming the tool and material are compatible with such speeds. In contrast, the specific length of the rod in this case does not vary enough to create a substantial difference in cutting time when all rods being cut are uniform in size. The diameter and the material properties are more influential aspects of the cutting process than the 6-inch length itself.