Difficulty: Easy
Correct Answer: forward stroke
Explanation:
Introduction / Context:
A hand hacksaw is a basic shop tool for cutting metals. The orientation of the teeth determines whether cutting occurs on the push (forward) or pull (return) stroke. Proper setup reduces effort, improves accuracy, and extends blade life.
Given Data / Assumptions:
Concept / Approach:
In the usual configuration, hacksaw teeth point forward (away from the handle). The blade therefore cuts on the forward (push) stroke when the operator drives the teeth into the work. The return stroke lifts pressure to avoid dulling and to clear chips. Some specialised frames or user preferences can reverse the blade for pull cutting, but that is not the common workshop practice.
Step-by-Step Solution:
Check tooth direction: points forward.Apply feed pressure on forward stroke; relax on return.Thus, cutting action is on the forward stroke.
Verification / Alternative check:
Observation of chip formation and sound confirms that the blade bites during the push stroke while the return stroke is largely idle.
Why Other Options Are Wrong:
Common Pitfalls:
Over-pressing on the return stroke causes blade chatter and premature tooth wear. Maintain light pressure while returning.
Final Answer:
forward stroke
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