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Design and Technology
What does PCB stand for?
Printed circuit board
Printed circuit base
Programmable circuit board
Which type of production system involves making a small quantity of a product before switching to the next product?
What does CAM stand for?
Which of the following is a disadvantage of CAM machines?
When making a large quantity of products, every product is the same.
They can make freeform shapes, such as the tracks on a PCB.
The machining speeds are typically lower than manual machines.
Which of the following processes can be used with thermosetting polymers?
What does CNC stand for?
Computer number control
Computer numerical control
Central numerical control
In a vacuum-forming mould, what is the reason for the draft angle?
To stop the product being stuck in the mould.
To allow air to escape from under the plastic.
To allow overlaps in the shape of the product.
What does CIM stand for?
Pick and place machines, used to assemble components on circuit boards, are an example of which of the following?
Which rapid-prototyping process uses a laser to scan a bath of liquid resin?
Selective laser sintering