Hazard Recognition

Which of the following statements is true?

Explosions of steam systems can destroy buildings and cause fatalities

Which of the following statements is correct?

NOT (It is impossible to anticipate process hazards because they are unique for every material)

Which of the following is NOT a physical condition that can lead to process hazards?

NOT (none of the above)

In April, 2003, at a plant located in Louisville, Kentucky, a tank that was used in the manufacture of food-grade caramel coloring was overheated, which caused.....

NOT A resulu of exposing the caramel coloring chemical to air at elevated temperatures

Which of the following materials can explode if present as a dust in air?

NOT ALL of the choices NOT JUST -coal -wood zirconiumn powder dry

Which of the following is NOT a hazard associated with the operations of a process

NOT Hazards related to the size of the system (like a storage tank)

Some measures of toxicity are:

NOT all of the choices

True or False: A hazard is a property that makes an object or situation dangerous

True

True or False: Chemical exposure can occur as a result of cuts in the skin

True

True or False: If a flammable gas is accidentally released in a confined area, the consequence can be more severe than if the flammable gases are not confined

True

True or False: In a process where 50% acetic acid solution could accidentally come in contact with ethylene glycol, hazards that should be given carful consideration including the possibility of polymerization, heat generation and pressure build-up

True

Read the scenario below. What is/ are the appropriate action(s) to recommend if you encounter this situation? (A building surrounds process equipment in a chemical plant. Workers ........)

-Immediately bring the problem.... -Install instrumentation to detect an accidental release....

Based on the NIOSH Handbook, what are the most common correct statements below about acetic acid

-It is incompatible with strong oxidizers -It can affect the respiratory system -It has a NIOSH REL of 10 ppm

In 1984, an LPG release at an LPG terminal in Mexico City

-Killed 600 people -injured thousands of people -destroyed the terminal

The upper flammable limit (UFL) of methane in air is approximately

15%

Dry ice (frozen carbon dioxide) is placed inside a closed, airtight container. As it warms up, the dry ice sublimes. The container explodes a few hours later. This is an example of:

A hazard associated with the physical properties of carbon dioxide

Conditions that could pose hazards if there is an accidental release include

ALL of the Options

Properties which make a material dangerous include

ALL of the options

Ways members of the public can be exposed to hazards in a chemical plant are____?

ALL of the options

People inside buildings are in danger of being killed or injured from:

All of the above

Physical properties that appear on an SDS related to flammability include:

Auto-ignition temperature, flammable limits, flash point

Physical conditions which could be the principle or initiating cause of an explosion or chemical release include which of the following?

Both 'A' and 'B'

True or False: Because it is safe to store 10 kg (22lbs) of ammonium nitrate in a home, it is reasonable to conclude that there are no hazards associated with storing 30 tonnes of ammonium nitrate

False

True or False: Chemical accidents almost always have a single cause, which can be related to the hazardous properties of the materials, the physical conditions in the process, and the quantity of the material present

False

True or False: Physical conditions (temperature) contributed to the release of LPG at the Longford facility in 1998. However, the flammability of LPG did not have a significant impact on the consequences of the release

False

True or False: Physical conditions which could be the principle or initiating cause of an explosion or chemical release include a chemical reaction between acetic acid and sodium hydroxide

False

True or False: Everything you need to know about process hazards can be found in Bretherick's "Handbook of Reactive Chemicals Hazards" and Sax's "Dangerous Properties of Industrial Materials."

False- You have to consult......

You have been asked to complete an emergency response form for the local fire department....

Flammables, carcinogens, corrosives, and reactive solids

If an explosion takes place nearby, fatalities inside buildings can result from:

Flying debris, shattered glass, and building collapse

Which of the following statements is NOT correct?

In some cases, it is acceptable for workers to enter a confined space for a very short amount of time without protective equipment if they have support nearby

You have to make a decision between storing a large amount of flammable liquid or a large quantity of a potential explosive material( but not both). What would you do?

Minimize the storage requirements for either the flammable liquid or the explosive material

If an SDS for a material your company buys from another company is missing from your company's files, the most appropriate action for you to take is to:

NOT (Create a new SDS from the information contained....)

Acute exposure to a toxic substance:

NOT (Is by definition, short and without any long-terms health effects

Using the computer icon and book icon, review available information on silane (silicon tetrahydride)

NOT JUST -It is incompatible with water -It is pyrophoric

If the designers and builders of the West Fertilizer ammonium nitrate storage facility had had sufficient flexibility to make changes when the facility as build....

NOT JUST -The ammonium nitrate storage bun could have been made wider but shorter so that the same amount was stored -Less ammonium nitrate could have bee stored at the facility NOT JUST -Less ammonium nitrate could have bee stored at the facility -The ammonium nitrate could have been mixed with fuel oil to lower the potential for an explosion

Who is principally responsible for determining safe limits for chronic exposure to materials?

Not (NIOSH and OSHA) NOT (company doctors and physicians ...)

You are working in a plant where vinyl acetate is used. Vinyl acetate is delivered to the plant. You are asked to figure....

Obtain an SDS (either an electronic or paper copy) from the company that supplies vinyl acetate to your facility...

Which of the following building could be vulnerable to the effects of an accidental release, depending on their location?

Temporary buildings, permanent buildings, offsite buildings(lie residences) and offices buildings

In 1919, a tank containing 8700 cubic meters of molasses, an innocuouc material, broke apart and molasses flooded the streets of boston....

The amount of a material contained in a vessel or tank had an effect on the consequences of the spill and the potential for danger

The LD50 is:

The dose which causes 50% of the laboratory animals exposed to a material to die

True or False: Physical conditions which could be the principal or initiating cause of an explosion or chemical release including high temperature and hydraulic shock

True

True or False: Process hazards should be of concern to both the nearby community and the plant personnel

True

True or False: SDS usually information on exposure controls, fire-fighting measures, physical and chemical properties

True

True or False: SDSs may not always disclose all of the hazards of a chemical

True

True or False: Storing large quantities of toxic or flammable materials can result in fatalities among members of the public

True

True or False: The ammonium nitrate explosion in West, Texas in April 2013 is one example where the fatalities could have been reduced or eliminated if the public was located further away from the site of the incident

True

True or False: Theoretically, a vapor cloud explosion involving the entire contents of a home LPG tank could break windows up to 0.2 km away....

True

One of your colleagues has an idea that will reduce your company's plant operational costs. If the idea is implemented, there will now be a small chance that chlorine and anhydrous ammonia.......

You strongly recommend that the idea requires further study because of the reacivity of these two chemicals and the possiblity....

True or False: Chemical engineers are primarily concerned with process integrity, economics, and efficiency. It is the responsibility of other engineers to worry about process safety.

false

True or False: Only materials which are flammable, toxic, or reactive can cause serious accidents

false

True or False: Operating electrical devices near equipment that contains flammable gases or liquids is never safe because of the danger of ignition of the gases or liquids

false

Based on the NIOSH handbook, carbon dioxide___.

has an IDLH of 40,000ppm

True or False: Potential ignition sources include any piece of equipment that is electrified or generates heat

true