HESS 234 Lecture Notes - Lecture 2: Freezing Rain, Jackknifing

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joeybigelow9999

4 Jan 2023

School

University of the Cumberlands

Department

Health Science

Course

HESS 234

Professor

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Document Summary

Hess 234: chapter 2 responding to an emergency. Study questions (page 24) name: list the emergency action steps. Answer the following questions 2 5 based on the scenario below. Rain has been falling steadily, and is now beginning to freeze. Suddenly the tractor-trailer that you can see in the distance ahead of you begins to sway and slide, then jackknifes and crashes onto its left side. Drivers put on their brakes and swerve, and by some miracle everyone close by manages to avoid crashing into the fallen truck or each other. You pull onto the median and stop a safe distance behind the truck: list the possible dangers to be aware of at the scene of this emergency. Downed power lines, traffic, fire, dangerous fumes, freezing rain, broken glass, metal. Shards, spilled fuel: describe the actions you should take if you determine that the scene is unsafe.

Related Questions

John, a healthy twenty-eight year old electrical engineer, was driving home from work one evening when he experienced sudden stabbing pain in his right pectoral and right lateral axillary regions. He began to feel out of breath and both his respiratory rate and heart rate increased dramatically. As luck would have it, John passed a hospital each day on his way home and was able to get himself to the hospital’s emergency room.

The emergency room physician listened to John's breathing with a stethoscope and requested blood gas analysis and a chest x-ray. John answered a few of the doctor's questions. The doctor noted that John had no history of respiratory problems but was a heavy smoker.

After viewing the chest radiograph, the doctor informed John that he had experienced a spontaneous pneumothorax, or what is commonly called a collapsed lung. The doctor explained that a hole had opened in John's right lung and that this hole had allowed air to leak into the cavity surrounding the lung.

Then, as a result of the lung's own elastic nature, the lung had collapsed. The doctor said he could not be certain of the cause of the pneumothorax, but smoking cigarettes had certainly increased the likelihood of it happening. He told John he was fortunate the pneumothorax was small, which meant that relatively little air had escaped from the lung into the surrounding cavity, and it should heal on its own.

He instructed John to quit smoking, avoid high altitudes, flying in non-pressurized aircraft, and scuba diving. He also had John make an appointment for a re-check and another chest x-ray.

Case Background

The pneumothorax decreases the efficiency of the respiratory system, which in turn results in decreased blood oxygen concentration, increased respiratory rate, and increased heart rate. If the pneumothorax is small, the air that escapes into the pleural cavity can be reabsorbed into the lung once the opening has sealed shut. If the pneumothorax is large, a needle or chest tube may have to be inserted into the pleural cavity to draw the air out and allow for the re-expansion of the lung.

Questions

1. Define the following terms and explain how they may have been affected by John’s spontaneous pneumothorax.

a. Visceral pleura

b. Parietal pleura

c. Pleural cavity

2. As a result of a pneumothorax, the lung tissues recoil, and the lung collapses. Explain how recoil and collapse are prevented in a healthy lung?

3. How does elastic recoil function in breathing?

4. Why was John instructed to avoid high altitudes and flying in non-pressurized aircraft?

sanggavi0907

Grade 9 Science – Lab Safety & Equipment Woksheet

Part A: Highlight ‘T’ for TRUE OR ‘F’ for FALSE for each of the following questions. (K - 35)

1. T F Broken glassware should be swept up immediately and placed in the garbage bin.
2. T F Eyeglasses or contact lenses are an acceptable substitute for googles during an experiment.
3. T F If you arrive at class to find a spilled liquid on your desk, you should assume it is water and wipe
it up with paper towels.
4. T F Students with long hair must tie it back when using Bunsen burners.
5. T F If you take too much of the chemicals needed for an experiment, put it back into the container you
got it from.
6. T F Class B fires are those related to electrical equipment.
7. T F Discard all solid waste by rinsing it down the sink.
8. T F You may consume food and drinks during a lab, as long as it is kept at a safe distance from
chemicals.
9. T F If asked to detect the odour of a chemical in the lab, the student should inhale a deep breath of the
chemical.
10. T F If your clothing were to catch on fire, your first step should be to STOP, DROP and ROLL.
11. T F When using a fire extinguisher, aim at the top of the fire. The chemical in the extinguisher will
fall and put out the flames.
12. T F When heating chemicals in a test tube, heat from the bottom up, aiming the test tube at the
ceiling, and keep the test tube still.
13. T F It is ok to take off my safety goggles if it’s just for a second while I write something down.
14. T F If any chemical makes contact with your eye, wash it immediately at the eyewash station for
fifteen minutes. If you should spill chemicals on your skin, place the affected area under water
immediately.
15. T F Always read through each activity before you begin.
16. T F If you are unsure about any part of the procedure for an experiment, you should figure it out
yourself. Asking the teacher for clarification will result in a lower mark due to lack of preparation.
17. T F It is acceptable to sit during very long experiments.
18. T F It is ok if I don’t know where the lab safety equipment is since I can just ask someone later.
19. T F Be sure to tell your teacher about any accident, broken equipment, or injury that occurs during
class; no matter how minor.
20. T F When working with chemicals, keep pens and pencils away from your mouth.
21. T F In warmer months, it is acceptable to wear sandals during an experiment.
22. T F Determine whether your equipment is cool enough to disassemble by placing the back of your
hand near it.
23. T F Loose-fitting, long-sleeved shirts should be worn during experiments to protect your arms from
burns and chemical splashes.
24. T F If you must retrieve materials during a lab, it is acceptable to leave your Bunsen burner unattended
as long as it is set to a yellow flame.
25. T F To avoid an injury when heating materials, always place a stopper or tight-fitting lid on the
container being heated.
26. T F If a student uses the last of the chemicals in an experiment, it is their responsibility to go into the
storeroom to retrieve an additional quantity of that chemical.
27. T F Always leave your work area clean and dry before leaving the lab and make sure equipment and
glassware is returned clean to its proper place.
28. T F Horseplay is O.K. during a lab as long as no one is getting hurt.
29. T F It is never advisable to place a thermometer in an open flame.
30. T F To cool hot glassware, run cold water over it.
31. T F Class A fires can be extinguished with water.
32. T F Class D fires must be extinguished with water.
33. T F Keep equipment away from the edge of the lab bench.
34. T F If your eye itches while you are working with chemicals, you should rub it with your hands.
35. T F WHMIS stands for warning hazardous materials information symbols.

jhonny

Dear Hardikmaths3,

the last few questions I post, you keep saying 1. Can you please confirm the following questions?

You are building a chatbot for a restaurant by using the Bot Framework Composer.

Users must be able to browse available meal combinations and select the one they want.

You need to ensure that the users can use the chatbot to browse images, prices, and descriptions of the food and select a meal combination.

What feature should you include?

Select only one answer.

1. TextCard

2. carousel

3. SuggestedAction

4. cardReceipt card

Answer:

You plan to use Text Analytics to detect the language of reviews.

You need to route the reviews that are multi-lingual to a human translator.

Which field in the JSON response should you use to filter records?

Select only one answer.

1. score

2. errors

3. statistics

4. name

Answer:

You have an application that performs Speech to Text services for users by using the Speech SDK.

You need to add the ability to perform Text to Speech in the application.

Besides the text, which other values should you include in your queries?

Select only one answer.

1. the pronunciation

2. the voice

3. a keyword

$. the phrase list

the answer:

You build an application that uses Language Understanding.

You need to ensure that the application support speech inputs by using the Speech service.

What should you configure for Language Understanding?

Select only one answer.

1. Enable the Speech priming setting during model publishing.

2. Add additional utterances to the intents in the model before publishing.

3. Set the endpoint URL parameter verbose to true.

4. Enable the Normalize punctuation setting on the application.

mmyint1234

HESS 234 Lecture Notes - Lecture 2: Freezing Rain, Jackknifing

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