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3 years ago

Explain active and passive fire protection system.

1 answer:

7 0

Answer:The following are differences that present in the active fire protection system (AFP)and passive fire protection system(PFP):-

Passive fire protection system is for the prevention from the smoke and fire whereas active protect system tends to end the fire.
PFP does it work more efficiently as compared with AFP, which sometimes fails to achieve the aim.
PFP uses equipment and tools such as dampers, fire resistance wall floors etc whereas AFP uses the tools like fire extinguisher , sprinklers etc.

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1 year ago

Which of the following types of protection is an employer required to pay for?

77julia77 [94]

Answer:

Hearing protection would be your answer!

Explanation:

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4 years ago

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Answer:

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3 years ago

What are the chemical properties of metals

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Answer:

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4 years ago

A 10.2 mm diameter steel circular rod is subjected to a tensile load that reduces its cross- sectional area to 52.7 mm^2. Determ

VMariaS [17]

Answer:

The percentage ductility is 35.5%.

Explanation:

Ductility is the ability of being deform under applied load. Ductility can measure by percentage elongation and percentage reduction in area. Here, percentage reduction in area method is taken to measure the ductility.

Step1

Given:

Diameter of shaft is 10.2 mm.

Final area of the shaft is 52.7 mm².

Calculation:

Step2

Initial area is calculated as follows:

$A=\frac{\pi d^{2}}{4}$

$A=\frac{\pi\times(10.2)^{2}}{4}$

A = 81.713 mm².

Step3

Percentage ductility is calculated as follows:

$D=\frac{A_{i}-A_{f}}{A_{i}}\times100$

$D=\frac{81.713-52.7}{81.713}\times100$

D = 35.5%.

Thus, the percentage ductility is 35.5%.

5 0

3 years ago