OHST Practice Exam

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Prepare for the OHST Exam. Use diverse question formats and detailed explanations to enhance your study experience. Ace your certification!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is the standard distance maintained for a tool rest from a grinding wheel to ensure safety?

1/8 inch
1/4 inch
1/2 inch
1 inch

The correct answer is: 1/4 inch

Maintaining a standard distance of 1/4 inch between the tool rest and the grinding wheel is critical for ensuring safety during grinding operations. This specific gap allows for proper clearance while minimizing the risk of the tool hitting the wheel. A distance that is too great may not provide proper support for the workpiece, resulting in stability issues and an increased risk of injury. Conversely, if the distance is set too close, there is a heightened risk of accidental contact, leading to potential tool damage, wheel breakage, or injury to the operator. The 1/4 inch standard strikes a balance, promoting both effective grinding and safety by preventing the workpiece from being drawn into the grinding wheel.