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goblinko [34]
3 years ago
15

Read through the paragraph on personal protective equipment on page 2 and fill in the blanks using the list of words below. Each

word is used only once.
Sewers
Ear defenders
Replaces
Drop
Hazards
Dust mask
Hands
Employer
Safety boots
85db
Protect
Falling objects
Tread
Helmet
Gauntlets
Responsibility
Noise
PPE

I have just started a new job, and it is the responsibility of my ____________________ to supply the correct PPE for me to wear. PPE is designed to ___________________ me against workplace _____________________ . When we go on site I need good strong ______________ _____________________ to protect my feet from things like dampness, in case I ____________ something on my foot and also in case I _____________________ on an up-turned nail. My boss always asks me to use safety gloves to protect my ______________________. In fact, once I had to wear arm-length ____________________ when we were working on some _______________ |On site I also have to wear a safety ____________________ all the time. This is a good thing because it protects my head from any ___________________ ________________________. Working with other trades, such the carpenters, can be hazardous because they make lots of ______________________ with their power tools. If the noise is above ____________________ we have to use ______________ ______________________, otherwise my hearing could be damaged. Because of all the sawdust they create when they are cutting wood, they regularly have to wear a _____________ ___________________, which stops them breathing in the dust.

I have to look after all the ______________________ my boss gives me, as it is my ______________________. If something gets broken, he _______________________ it for me as he does not want to get in to trouble with the HSE.
Engineering
1 answer:
omeli [17]3 years ago
3 0

Answer:

BESUE THE 35

Explanation:

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I'm 50s I be sliding on them crabs and we be posting 5 inta a Snapple

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2 years ago
A(n) ___ is an electric device that uses electromagnetism to change (step up or step down) AC voltage from one level to another.
Pie

Answer:

A transformer is an electric device that uses electromagnetism to change voltage from one level to another or to isolate one voltage from another.

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5 0
3 years ago
A plate clutch is used to connect a motor shaft running at 1500rpm to shaft 1. The motor is rated at 4 hp. Using a service facto
vazorg [7]

Answer:

(M_t)_{rated}=61.11lb-in

Explanation:

speed of motor (N)=1500 rpm

power=4 hp = 4 \times 0.7457 =2.9828 KW

service factor(k)= 2.75

now,

KW=\frac{2\pi n M_t}{60 \times 10^6} \\2.9828=\frac{2\pi \times 1500 M_t}{60 \times 10^6}\\M_t=\frac{2.9828\times 60 \times 10^6}{2\pi \times 1500 }

M_t= 18,989.09 \ N-mm= 168.06 lb-in

torque rating

(M_t)_{design}=k_s\times (M_t)_{rated}\\168.06= 2.75\times (M_t)_{rated}\\(M_t)_{rated}=\frac{168.06}{2.75} \\(M_t)_{rated}=61.11lb-in

4 0
4 years ago
A 900 kg car is accelerated from a speed of 10 m/s to 30 m/s. An estimated heat loss of 20 BTU's occurs during the acceleration.
Strike441 [17]

Answer:

Work = 651,1011 kJ

Explanation:

Let´s take the car as a system in order to apply the first law of thermodynamics as follows:

E_{in}- E_{out}=E_{system,final}- E_{system,initial}

Where

E_{in}- E_{out}=(Q_{in}-Q_{out})_{heat}+(W_{in}-W_{out})_{work}+(Em_{in}-Em_{out})_{mass}

And considering that there is no mass transfer and that the only energy flows that interact with the system are the heat losses and the work needed to move the car we have:

E_{in}- E_{out}=-Q_{out}+W_{in}

Regarding the energy system we have the following:

E_{system,final}- E_{system,initial}=(U_{f}-U_{i})_{internal}+(1/2m(V^2_{f}-V^2_{i}))_{kinetic}+(mg(h_{f}-h_{i}))_{potential}

By doing the calculations we have:

E_{system,final}- E_{system,initial}=[0,1*900]_{internal}+[0,5*900(30^2-10^2)/1000)_{kinetic}+(900*10*(20-0)/1000)_{potential}\\E_{system,final}- E_{system,initial}=90+360+180=630kJ

Consider that in the previous calculation, the kinetic and potential energy terms were divided by 1.000 to change the units from J to kJ.

Finally, the work needed to move the car under the required conditions is calculated as follows:

W_{in}=Q_{out}+E_{system,final}- E_{system,initial}\\W_{in}=21,1011+630=651,1011kJ

Consider that in the previous calculation, the heat loss was changed previously from BTU to kJ.

4 0
3 years ago
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