Drilling Machine Quiz

How is the spindle speed adjusted in a drilling machine?

• changing drill bits

• loosening the table

• shifting the belt on stepped pulleys

• adjusting the spindle manually

Which part rotates only when the motor is running and the belt is properly tensioned across the pulleys?

• Hand feed

• Guard

• Spindle

• Table clamp

When using the hand feed mechanism improperly, what issue is most likely to occur?

• Drill bit misalignment due to pulley speed

• Excessive feed causing bit breakage or workpiece damage

• Chuck disengagement during high-speed rotation

• Table misleveling leading to vibration

Which part controls the maximum depth the drill bit can penetrate into the material?

• Chuck

• Hand feed

• Depth adjustment

• Work table clamp

Which of the following combinations results in the slowest spindle speed in a step pulley system?

• Small motor pulley, small spindle pulley

• Large motor pulley, large spindle pulley

• Small motor pulley, large spindle pulley

• Large motor pulley, small spindle pulley

When comparing a punching machine and a drilling machine, which statement is true regarding material thickness?

• Punching machines are generally better for very thick materials due to their shearing action.

• Drilling machines are limited to thinner materials, similar to punching machines.

• Drilling machines are more versatile for a wider range of material thicknesses, while punching excels on thinner materials.

• Both machines have the same limitations when it comes to material thickness.

An EDM (Electrical Discharge Machining) machine would be the preferred choice over a drilling machine when:

• Speed is the absolute highest priority for creating simple holes in soft materials.

• The material to be machined is very hard and electrically conductive.

• Only simple cylindrical holes are needed.

• The primary goal is to enlarge an existing hole with high precision.

What is the primary function of a boring machine in relation to creating holes?

• To create the initial hole from a solid material.

• To quickly cut simple holes in thin sheet metal.

• To enlarge existing holes with high precision and improve their internal finish.

• To engrave complex designs onto a material's surface.

What is the primary function of a drilling machine?

• To weld metal parts together

• To create cylindrical holes by removing metal

• To polish metal surfaces

• To cut metal sheets into shapes

Who is credited with patenting the radial arm drill press?

• Arthur James Arnot

• Thomas Edison

• James Nasmyth

• Nikola Tesla