Reference no: EM131392560
Referring to Problem 1.7D,
(a) Sketch a tub hay grinder and label a guarding device, power source, point of operation, and danger zone.
(b) List general methods used to guard known tub grinder hazards.
(c) Write a paragraph explaining the procedure of lockout/tagout for the tractor and tub hay grinder.
(d) Develop a warning sign/label(s) that could be applied to the tub grinder shields (guards) on the tub grinder.
(e) Sketch a device that could be used to "immediately" stop a rotating hammer mill if the tractor PTO is "turned off."
Problem 1.7D
An incident occurred on a cattle ranch that resulted in an injury to the operator of a tub grinder. The tub grinder was being used to grind hay bales. The grinder was powered from a tractor by means of (i) hydraulic fluid pressure (that powered a hydraulic motor that turned the tub) and (ii) a power take off (PTO) shaft that powers a spinning hammer mill that rotates to "grind" the hay bale. The discharge spout of the tub grinder became clogged during operation. The operator exited the cab of the tractor, "turning off" the tractor PTO while leaving the tractor engine running. He walked to the tub grinder spout area, removed pins and opened the tub grinder shields (guards). The operator reached into the unguarded opening and at some point his right hand contacted the still rotating hammer mill of the tub grinder. At issue are (a) whether the tub grinder contained proper warnings, (b) whether the tub grinder hammer mill was properly guarded, and (c) whether the hammer mill should be allowed to "coast down" to a stop, or the hammer mill should stop rotating immediately once the tractor PTO is "turned off." Search the OSHA regulations https://www.osha.gov and specifically review the regulations 29 CFR 1910.212, General requirement for all machines, 29 CFR 1910.147, The control of hazardous energy (lockout/tagout), and 29 CFR 1910.145, Specifications for accident prevention signs and tags. Write several paragraphs explaining how each regulation would apply to a tub grinder.
|
How each regulation would apply to a tub grinder
: Specifications for accident prevention signs and tags. Write several paragraphs explaining how each regulation would apply to a tub grinder.
|
|
Using total cost curves-use economic terminology
: For a french bakery in the short run, explain, in words and using total cost curves (TFC, TVC, TC) what would happen to the firms total costs if the bakery decides to install a new ceiling fan in the kitchen, other things remaining constant. -please ..
|
|
Are supermarkets good for consumer welfare
: Are Supermarkets good for consumer welfare? Assume supermarkets are an oligopoly, how would they compare with local market in terms of consumer welfare? Give any other examples why supermarkets are good/bad for consumer welfare.
|
|
Calculate the bellows deflection for a pressure of 20 psi
: The bellows, diaphragm, and Bourdon tube pressure sensors all exhibit secondorder time response.- Calculate the bellows deflection for a pressure of 20 psi and the natural frequency of oscillation.
|
|
List general methods used to guard known tub grinder hazards
: The control of hazardous energy (lockout/tagout), and 29 CFR 1910.145, Specifications for accident prevention signs and tags. Write several paragraphs explaining how each regulation would apply to a tub grinder.
|
|
The competitive equilibrium for an exchange economy
: Consider the competitive equilibrium for an exchange economy. If the endowment of each person increases by 10% for each good, everyone is better off at the new competitive equilibrium since everyone consumes more of each good.
|
|
Human capital analysis of this potential investment
: Suppose you are about to complete a bachelor’s degree in your chosen major and are considering investing in a law degree. Explain the data you would need and the methods of analysis you would use in order to conduct a human capital analysis of this p..
|
|
What conveyor speed is needed to get a flow
: A grain conveyor system finds the weight on a 1.0-m platform to be 258 N. What conveyor speed is needed to get a flow of 5200 kg/h?
|
|
Advantages of open market operations
: All of the following are advantages of open market operations (OMO), EXCEPT: Intermediate targets of monetary policy are: A business is considering buying a machine with an upfront cost of $10,000, but with an annual revenue stream of $2,000. In orde..
|