Appropriate switches for belt sanders are:
a) Positive on/off switches
b) Momentary contact on/off switches
c) Constant pressure switch
d) None of the above
Answer: a) Positive on/off switches
A belt sander is something that usually has on/off switches, whereby each switch has constant pressure switches, for safe and convenient operation while at work. The provision of the positive center makes the sanding tool coming on or off only with a deliberate switch action, and this tends to mitigate against the possibility of the tool being inadvertently started up or shut down. The constant pressure switches are best for this purpose, as they require the person to maintain pressure as long as they wish to, and the moment its released, the sander stops. These switch types are one of an important safety feature for belt sanders, they guard against the abrasive belt runs accidentally and may be a certain case of injuries or damage to them. MBEP (two blades system) is mainly used as a safety feature on belt sanders to eliminate the possibility of accidental operation of the machine.
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