What is the primary purpose of a jig in workshop practice?
A Measure dimensions
B Cut material
C Hold the tool
D Hold the workpiece
A jig is a tool used to hold and guide the workpiece during machining operations, ensuring accuracy and consistency. It stabilizes the part, especially during drilling or milling, to ensure precise placement and alignment.
What does threading refer to in workshop practice?
A Creating helical grooves
B Shaping metal
C Joining parts
D Cutting flat surfaces
Threading is the process of cutting helical grooves on the surface of a workpiece, typically used to create internal or external threads for screws and bolts. It is a crucial operation in creating fastening mechanisms.
What is a common material used for making jigs?
A Aluminum
B Wood
C Steel
D Plastic
Jigs are commonly made from steel because of its strength, durability, and resistance to wear. Steel ensures that jigs can withstand the forces applied during machining without deforming, maintaining accuracy over time.
What is the function of a fixture in workshop practice?
A Measure dimensions
B Hold the workpiece
C Cut material
D Hold the tool
A fixture is used to securely hold a workpiece in place during machining operations. Unlike a jig, which also guides the tool, a fixture primarily focuses on holding the part steady for accurate and repeatable machining.
Which type of lathe operation is used to reduce the diameter of a workpiece?
A Turning
B Boring
C Grinding
D Drilling
Turning is a lathe operation used to reduce the diameter of a workpiece. The workpiece rotates while a cutting tool removes material from the surface, producing cylindrical shapes and precise dimensions, such as shafts and rods.
What is the purpose of a carpenter’s square?
A Drilling holes
B Shaping wood
C Measuring angles
D Cutting material
A carpenter’s square is used to measure and mark right angles, typically in woodworking. It helps ensure accuracy when assembling parts or cutting materials, ensuring that joints are square and correctly aligned.
What type of cutting tool is typically used for creating internal threads?
A End mill
B Drill bit
C Saw blade
D Tap
A tap is used for cutting internal threads inside a hole. It allows bolts or screws to be securely threaded into the workpiece. Tapping is a common operation in mechanical manufacturing for creating fastening points.
What is the purpose of a crosscut saw in carpentry?
A Cutting curves
B Cutting across the grain
C Cutting along the grain
D Polishing wood
A crosscut saw is designed for cutting wood across the grain. The teeth of the saw are arranged to make clean cuts perpendicular to the wood’s grain, allowing for accurate and smooth cutting of boards and beams.
Which type of lathe operation involves creating a smooth, flat surface?
A Drilling
B Turning
C Facing
D Boring
Facing is a lathe operation where the cutting tool removes material from the end of a workpiece to create a smooth, flat surface. It is commonly used to prepare the surface for further operations or to square off the end.
What is the purpose of a die in die making?
A Shaping material
B Measuring parts
C Holding the workpiece
D Cutting material
A die is a specialized tool used in manufacturing to shape material, often metal, by applying high force. Dies are used in processes such as stamping, forging, and molding to produce specific shapes in mass production.
What is the function of a thread gauge?
A To measure angles
B To check tool sharpness
C To measure workpiece diameter
D To measure thread pitch
A thread gauge is used to measure the pitch or size of threads on a workpiece. It helps verify whether the threads are properly cut and match the desired specifications for bolts, screws, and other threaded components.
What is a common tool used for jointing wood in carpentry?
A Joints
B Saws
C Clamps
D Screws
Clamps are commonly used in carpentry to hold pieces of wood together during the jointing process. They ensure that the parts stay aligned while the glue or fasteners set, providing a secure bond for the joint.
What type of cutting tool is commonly used for shaping wood in carpentry?
A Drill
B Saw
C Hammer
D File
A saw is commonly used in carpentry to cut wood. It is available in different types, such as hand saws, circular saws, and jigsaws, depending on the nature of the cut (straight or curved) required for the project.
What is a common method used to join metal parts in workshop practice?
A Welding
B Drilling
C Turning
D Cutting
Welding is the process of joining two metal parts by heating their edges until they melt and fuse together. It is widely used in various industries to create strong, permanent bonds between metal components for structural integrity.
What is the function of a dowel in carpentry?
A To fasten wood pieces
B To measure wood dimensions
C To join metal parts
D To drill holes
A dowel is a cylindrical rod, usually made of wood, used to align and join wood pieces together. It is inserted into holes drilled into the wood parts to create a strong, invisible joint, typically used in furniture making and cabinetry.