Joining Methods is one of 8 topics in the Grade 10 Mechanical Technology CAPS syllabus, covered across 3 lessons on Study Vault. Below are real practice questions from this topic with full worked answers.
Sample practice questions
Easy
1. What is the key structural difference between a bolt and a stud?
A stud has no head and is threaded at both ends, while a bolt has a head and one threaded end
A bolt has no head at all
A stud is never used with a nut
A bolt and a stud are identical fasteners with different names
Answer: A stud has no head and is threaded at both ends, while a bolt has a head and one threaded end — A stud has no head and is threaded at both ends, with one end fitted permanently into a tapped hole, while a bolt has a head at one end and an external thread along its shaft.
Easy
2. What is the purpose of a locking device such as a locknut or spring washer on a bolted joint?
To prevent the joint from gradually loosening due to vibration or repeated loading
To increase the diameter of the bolt
To replace the need for a nut entirely
To make the joint permanently unremovable
Answer: To prevent the joint from gradually loosening due to vibration or repeated loading — Locking devices such as a locknut or spring washer are used to keep a threaded joint tight despite vibration or repeated loading, which can otherwise gradually loosen it.
Medium
3. Name the fastener that is internally threaded and engages a bolt's or stud's thread to complete the clamping action.
Answer: a nut — A nut is the internally threaded fastener that engages a bolt's or stud's thread to complete the clamping action.
