Core Knowledge and Fundamentals Flashcards

In the context of quality control, what does 'Six Sigma' primarily aim to reduce?

Answer: Defects and process variation

Six Sigma is a data-driven methodology aimed at reducing defects and process variation to near-zero levels.

Which type of screw drive requires a cross-shaped driver with a tapered tip?

Answer: Phillips

A Phillips head screw has a cross-shaped recess that accepts the tapered cross tip of a Phillips screwdriver.

What is the correct way to measure the diameter of a cylinder using a micrometer?

Answer: Measure at multiple points along the length and rotation

Measuring at multiple points along the length and at different rotational positions detects taper, out-of-round, and other dimensional variations.

What does ISO stand for in the context of international standards?

Answer: International Organization for Standardization

ISO stands for International Organization for Standardization, the body that publishes international standards across industries.

In a series electrical circuit, what happens to the total resistance when more resistors are added?

Answer: Total resistance increases

In a series circuit, total resistance equals the sum of all individual resistances, so adding more increases the total.

Which type of file cut is best suited for rapid material removal on soft metals?

Answer: Double cut

A double-cut file has two sets of crossing teeth that remove material faster, making it ideal for rapid stock removal.

What is the purpose of a pilot hole when drilling into hard materials?

Answer: To guide the larger drill bit and reduce stress

A pilot hole guides the larger drill bit accurately and reduces the lateral force and stress on the bit, preventing wandering and breakage.