List five administrative hazard control activities.
Fill in the blank(s) with the appropriate word(s).
Training, housekeeping, permit system, audits, HAZOPs, investigations, fugitive emissions monitoring, inspections, investigations
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When selecting jobs to be analyzed, you should be guided by the following factors including ______.
a. project schedule b. subcontractor experience c. multiple employee exposure d. indirect medical costs
A dc, separately excited motor is driven by a full-wave, SCR, ac/dc converter. The voltage on the ac side is 120 V (rms). The field constant of the motor K? = 3 Vs. At a load torque of 300 Nm and triggering angle of 40o , the motor speed is 100 rpm, and the armature current is continuous.
a. The polarities of the terminal voltage of the motor (armature voltage) are reversed, and the triggering angle is simultaneously changed. Assume that the load torque is also reversed and is equal to 300 Nm. Calculate the triggering angle that stops the motor and keeps it at the holding position. Assume that the current is still continuous. b. Sketch the speed-torque characteristics and indicate the steady state operating points before and after polarity reversal.
To correct the wasteful and unnecessary use of potable water in buildings, which form(s) of water flow must be changed?
A) Water that flows into the building B) Water that flows out of the building C) All of the above D) Water that falls onto the site
Convert the following speed limits from miles per hour (mph) to kilometers per hour (km/h), and from feet per second (ft/s) to meters per second (m/s). Think about the relative magnitude of values as you go from mph to ft/s, and as you go from km/h to m/s. You may use Excel to solve this problem.
