1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
irakobra [83]
4 years ago
15

A negative pressure respirator brings fresh air to you through a hoseA) TrueB)False​

Engineering
2 answers:
madreJ [45]4 years ago
8 0

Answer:FALSE

Explanation: A negative pressure respirator is a respiratory system which is known to have a low air pressure inside the mask when compared to the air pressure on the outside during Inhalation.

Most of the personal protective equipment (PPE) which are in use in various industries are examples of Negative pressure respirator device,any leak or damage done to the device will allow the inflows of harmful and toxic Air into the person's respiratory system. AIR SUPPLY SYSTEMS ARE KNOWN TO SUPPLY FRESH UNCONTAMINATED AIR THROUGH AIR STORED INSIDE COMPRESSED CYLINDERS OR OTHER SOURCES AVAILABLE.

Elenna [48]4 years ago
8 0

Answer:

False

Explanation:

Any tight-fitting respirator in which the air pressure inside the face-piece is negative during inhalation with respect to the ambient air pressure outside the respirator is known to be a negative pressure respirator . An example of a negative pressure respirator is the disposable N95 filtering face-piece respirator.

Therefore, a negative pressure respirator brings fresh air to you through a face-piece, not through a hose.

You might be interested in
State five applications of thermochromic materials
rusak2 [61]

Explanation:

The end-use industries of thermochromic materials include packaging, printing & coating, medical, textile, industrial, and others. Printing & coating is the fastest-growing end-use industry of thermochromic materials owing to a significant increase in the demand for thermal paper for POS systems. The use of thermochromic materials is gaining momentum for interactive packaging that encourages consumers to take a product off the shelf and use it.

8 0
3 years ago
A square-thread power screw is used to raise or lower the basketball board in a gym, the weight of which is W = 100kg. See the f
KIM [24]

Answer:

power = 49.95 W

and it is self locking screw

Explanation:

given data

weight W = 100 kg = 1000 N

diameter d = 20mm

pitch p = 2mm

friction coefficient of steel f = 0.1

Gravity constant is g = 10 N/kg

solution

we know T is

T = w tan(α + φ ) \frac{dm}{2}     ...................1

here dm is = do - 0.5 P

dm = 20 - 1

dm = 19 mm

and

tan(α) = \frac{L}{\pi dm}      ...............2

here lead L = n × p

so tan(α) = \frac{2\times 2}{\pi 19}

α = 3.83°  

and

f = 0.1

so tanφ = 0.1

so that φ = 5.71°

and  now we will put all value in equation 1 we get

T = 1000 × tan(3.83 + 5.71 ) \frac{19\times 10^{-3}}{2}  

T = 1.59 Nm

so

power = \frac{2\pi N \ T }{60}     .................3

put here value

power = \frac{2\pi \times 300\times 1.59}{60}

power = 49.95 W

and

as φ > α

so it is self locking screw

 

8 0
3 years ago
Think of one example where someone would need to calculate the net force on a person at the waater park
ValentinkaMS [17]
Well Bob would need to calculate to net force of someone going down a water slide. Since the person is going down the slide, the person will go faster, depending on their mass/weight and the gravitational pull.
7 0
3 years ago
3. In the text, we described a multithreaded file server, showing why it is better than a single-threaded server and a finite-st
NemiM [27]

Answer and Explanation:

• 1 thread awaits the incoming request

• 1 thread responds to the request

• 1 thread reads the hard disk

A multithreaded file server is better than a single-threaded server and a finite-state machine server because it provides better response compared to the rest and can make use of the shared Web data.

Yes, there are circumstances in which a single-threaded server might be better. If it is designed such that:

- the server is completely CPU bound, such that multiple threads isn't needed. But it would account for some complexity that aren't needed.

An example is, the assistance number of a telephone directory (e.g 7771414) for an community of say, one million people. Consider that each name and telephone number record is sixty-four characters, the whole database takes 64 MB, and can be easily stored in the server's memory in order to provide quick lookup.

NOTE:

Multiple threads lead to operation slow down and no support for Kernel threads.

4 0
3 years ago
Even though the content of many alcohol blends doesn’t affect engine drive ability using gasoline with alcohol in warm weather m
Alchen [17]
Even though the content of many alcohol blends doesn't affect engine driveability, using gasoline with alcohol in warm weather may cause: decrease in fuel economy.

Mark brainliest
s
3 0
2 years ago
Other questions:
  • A furnace wall consisting of 0.25 m of fire clay brick, 0.20 m of kaolin, and a 0.10‐m outer layer of masonry brick is exposed t
    8·1 answer
  • A coal-burning power plant generates electrical power at a rate of 650 megawatts (MW), or 6.50 × 108 J/s. The plant has an overa
    12·1 answer
  • Write a program that asks the user to input a vector of integers of arbitrary length. Then, using a for-end loop the program exa
    13·1 answer
  • The rainfall rate in a certain city is 20 inches per year over an infiltration area that covers 33000 acres. Twenty percent of t
    6·1 answer
  • How do people eat with there noses shut
    12·2 answers
  • How can you do this 5.2.4: Rating?
    5·1 answer
  • Determine the minimum required wire radius assuming a factor of safety of 3 and a yield strength of 1500 MPa.
    15·1 answer
  • Which of the following is not caused by alcohol?
    10·2 answers
  • The ratio between the modulating signal voltage and the carrier voltage is called?.
    10·1 answer
  • Part A Identify the zero-force members in the truss. (Figure 1) (Hint: Use both visual inspection and analysis.) Check all that
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!