Screwing, Bolts, Nuts & Locking (Junior Cert Engineering): Quizzes
📚Quizzes
Practise the questions
13 questions from this quiz
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Practise the questions
13 questions from this quiz
What is the pitch of a screw thread?
What is the pitch of a screw thread?
Distance between adjacent thread points
What is the crest of a screw thread?
What is the crest of a screw thread?
Top surface of the thread ridge
What is the thread angle of ISO Metric threads?
What is the thread angle of ISO Metric threads?
60 degrees
What characteristic defines buttress threads?
What characteristic defines buttress threads?
Handle thrust in one direction only
Which threads are stronger overall?
Which threads are stronger overall?
Coarse threads
What materials are dies made from?
What materials are dies made from?
High carbon steel or high-speed steel
How should a circular split die be positioned when starting to cut threads?
How should a circular split die be positioned when starting to cut threads?
Chamfered side down
What causes 'drunken' (crooked) threads when screwing?
What causes 'drunken' (crooked) threads when screwing?
Die not started square with material
Why are grub screws safe for revolving shafts?
Why are grub screws safe for revolving shafts?
Can be screwed below surface level
What advantage do self-tapping screws provide?
What advantage do self-tapping screws provide?
Eliminate need for pre-tapping holes
What type of holes do bolts pass through?
What type of holes do bolts pass through?
Clearance holes in both parts
How do nylon insert lock nuts prevent loosening?
How do nylon insert lock nuts prevent loosening?
Nylon collar grips the bolt thread
What is the alternative name for split pins?
What is the alternative name for split pins?
Cotter pins