A
bench vice has following type of threads
एक बेंच वाइस में निम्नलिखित प्रकार के चूड़ी होते हैं
Metric
Buttress
Acme
Square
Buttress
Buttress threads are used in a bench vice because of the greater force requirement.
Hence, the correct option is (B).
&Key Points:-
●Buttress
thread is used where, the transmission of power in only one direction is
required.
●The
force in buttress threads is transmitted almost parallel to the axis.
●This
thread units the advantage of both square and V-threads.
●It
has a low frictional resistance characteristics of the square thread and have
the same strength as that of V-thread.
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