The hazard control class which is used along with other controls to protect workers as much as possible from hazards that cannot be eliminated is the Administrative Controls. Thus, the correct option for this question is C.
What are the other classes of hazard control?The other classes of hazard control are as follows:
Elimination control.Substitution control.Engineering Controls.Administrative Controls.The elimination control physically eliminates the hazard. While substitution control replaces the hazard from one form to another. But the administrative control alters the way through which people work along with other controls.
Therefore, administrative control is hazard control which is significantly utilized along with other controls to protect workers as much as possible from hazards that cannot be eliminated. Thus, the correct option for this question is C.
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A motor and pulley system is used to lift a 30 kg mass 20 m vertically in no more than 10 s. If the efficiency of the motor is 0.98, the minimum input power is ____ W.
The power input is obtained as 6000 W
What is the power input?
We know that the power is defined as the rate of doing work. The rate has to do with the timed rate thus if we divide the work done by the time taken to do the work, that is how we obtain the the power that is expended.
Now;
We have the work done as = 30 kg * 9.8 m/s^2 * 20 m = 5880 J
Energy expended = 5880 J/ 10 s = 588 W
We know that the efficiency is obtained from;
E = Power output/ Power input * 100/1
0.98 = 588 W/ Power input * 100/1
0.98 = 58800/Power input
Power input = 58800/0.98
Power input =6000 W
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is it necessary to check on the condition of your tools.
Answer:
yes because then you know wether or not to start prparing for your next tools that you need to get
What are primary reasons for being trained on cleaning, storage, and maintenance of tools and equipment?
O Work safer
O Save money on tools
O Work more efficiently
O All of the above