Square threads are used for transmitting motion or power. Eg. screw jack, vice handles, cross-slide and compound slide, activating screwed shafts.
20) Which one of the following threads, is used on mechanical jack ?
Answer is:
Square
Explanation:
Related Fasteners MCQ with Answers
Answer is:
Castle nut
Explanation:
Castle nut is having raised height and slots on the raised portion.
Answer is:
'V' threads
Explanation:
"v" threads are used for general fastening purposes.
Answer is:
Slackness of nuts due to vibration
Explanation:
Spring washers are available with a single or a double coil. These are placed under a nut in the assembly as washers. The stiff resistance offered by the washer against the surface of the nuts serves to prevent loosening.
Answer is:
locking the nuts
Explanation:
Tab washers can be used for locking the nuts which are located near an edge or corner.