What are the safety precautions needed when using a radial arm saw?
What will be an ideal response?
Wear a face shield; unplug or lock the switch in the off position when making adjustments; pull the
saw toward the user—never push away; always have guards in place; and always keep at least one
hand on the saw when operating.
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Express three hundred fourteen thousandths as a decimal fraction.
What will be an ideal response?
Answer the following statement(s) true (T) or false (F)
1. Many power equipment engines, such as lawnmowers, use a manual throttle control. 2. A manual throttle control system is an engine speed control system in which the operator sets the engine speed by positioning the carburetor throttle valve in a particular position. 3. The engine in an air vane governor control system speeds up when it comes to a heavy load, such as when a mower cuts through high grass. 4. When the engine is running in a centrifugal governor control system, the rotating camshaft causes the governor gear to rotate. 5. In a centrifugal governor control system with a throttle cable, increasing governor spring tension causes a lower governed speed.
The accompanying data show spot speeds collected at a section of highway located in a residential area before and after an increase in speed enforcement activities. Using the student’s t test, determine whether there was a statistically significant difference in the average speeds at a significance level of ? = 0.05 (the 95% confidence level). Also report, for both the before and after cases, the mean speed, standard deviation, 85th percentile speed, and percentage of traffic exceeding the posted speed limit of 30 mi/h.
An OSHA approved air nozzle limits pressure at the outlet to ________
A) 30 PSI B) 30 or 60 PSI, depending on the air supply C) 110 PSI D) None of these