Cams and followers (AQA GCSE Design and Technology): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What type of motion do cams convert rotary motion into?
What type of motion do cams convert rotary motion into?
Reciprocating motion
What movement pattern does a pear-shaped cam create?
What movement pattern does a pear-shaped cam create?
Stable for half rotation, then rises/falls
In car engines, what do pear-shaped cams control?
In car engines, what do pear-shaped cams control?
Valve timing
What is the key feature of an eccentric cam?
What is the key feature of an eccentric cam?
Mounted off-centre on its shaft
What movement pattern does a drop (snail) cam produce?
What movement pattern does a drop (snail) cam produce?
Gradual rise then sudden drop
What does 'dwell' mean in cam movement?
What does 'dwell' mean in cam movement?
Follower remains stationary
What is the 'stroke' in a cam system?
What is the 'stroke' in a cam system?
Total range from highest to lowest
What is the main advantage of a flat follower?
What is the main advantage of a flat follower?
Can handle heavy loads effectively
What is a critical limitation of knife edge followers?
What is a critical limitation of knife edge followers?
High stress causes rapid wear
What key advantage do roller followers provide?
What key advantage do roller followers provide?
Much less friction than sliding types
Which follower type is best for high-speed applications?
Which follower type is best for high-speed applications?
Roller follower
What percentage of motion-converting devices use cam systems?
What percentage of motion-converting devices use cam systems?
Over 80%