Tool Identification and Use Questions and Answers Flashcards
6 cards from real MECHANICAL APTITUDE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Tool Identification and Use Questions and Answers flashcards as text
What is the purpose of a center punch?
Answer: To create a starting dimple for drilling
A center punch creates a small indentation (dimple) in metal that guides a drill bit to start cutting at the exact desired location. Without a center punch mark, the drill bit tends to wander on smooth surfaces.
What type of saw blade is designed to cut metal?
Answer: Hacksaw blade
A hacksaw blade is designed specifically for cutting metal. It has fine, hardened teeth (14-32 teeth per inch) set in a frame under tension. The fine tooth pitch prevents teeth from straddling the workpiece and ensures smooth metal cutting.
What is a dial indicator used to measure?
Answer: Small linear displacements and runout
A dial indicator (or dial test indicator) measures small linear displacements with high precision, typically 0.01 mm or 0.001 inch per graduation. It is commonly used to check runout (wobble), alignment, flatness, and concentricity of rotating parts.
What is the function of a reamer?
Answer: To enlarge and smooth a pre-drilled hole to precise size
A reamer is a precision cutting tool used to slightly enlarge a drilled hole to an exact size with a smooth, accurate finish. Drilled holes often have rough surfaces and slight size variations; reaming corrects both.
What safety equipment should always be worn when using a bench grinder?
Answer: Safety glasses or face shield
Safety glasses or a face shield are essential when using a bench grinder because the grinding wheel throws off hot sparks, metal fragments, and abrasive particles at high speed. These can cause serious eye injuries in an instant.
What is a thread pitch gauge used for?
Answer: Identifying the number of threads per unit length
A thread pitch gauge (or screw pitch gauge) is a set of thin metal blades, each with teeth of a specific pitch. By matching a blade's teeth to an existing thread, you can quickly identify the thread pitch (metric) or threads per inch (Imperial).