Correct option is A
A
bench vice is a commonly used work-holding device in workshops, and for
general-purpose use, it is typically fixed at a height of
around 106 cm (approximately 42 inches). This height is chosen to ensure
comfortable working conditions, allowing users to
clamp and machine workpieces efficiently without excessive bending or reaching.
A properly positioned vice helps in
reducing operator fatigue, ensuring
better control and accuracy while working. If the vice is
too low (e.g., 80 cm), it causes back strain, while if it is
too high (e.g., 150 cm), it makes applying force difficult. The
106 cm height ensures optimal ergonomics, making it ideal for
metalworking, woodworking, and general maintenance tasks.