1.
Electrical pressure
Correct Answer
C. Voltage
Explanation
Voltage is the correct answer because it refers to the electrical pressure in a circuit. Voltage is the potential difference between two points in a circuit that causes the flow of electric current. It is measured in volts and represents the force that pushes the electrons through the circuit.
2.
Resistance in an electrical circuit
Correct Answer
C. Ohms
Explanation
Resistance in an electrical circuit is measured in ohms. Ohms is the unit of electrical resistance, which is the opposition to the flow of electric current in a circuit. It determines how much current will flow through a circuit for a given voltage. The higher the resistance, the lower the current flow. Ohms is a fundamental unit in electrical engineering and is used to calculate and design circuits for various applications.
3.
A nonflowing electrical charge
Correct Answer
C. Static discharge
Explanation
Static discharge refers to the sudden flow of electric charges between two objects that have built up static electricity. When objects become charged with static electricity, they can hold onto the charge until it is discharged. This discharge can occur when the objects come into contact with each other or when there is a conductive path between them. The sudden release of the stored electrical energy results in a static discharge. It is important to note that a static discharge is a nonflowing electrical charge, as it is a brief and temporary release of the accumulated static electricity.
4.
Connecting two object that conduct electricity with another conductor
Correct Answer
A. Bonding
Explanation
Bonding refers to the process of connecting two objects that conduct electricity with another conductor. This is done to ensure that there is a continuous flow of electrical current between the objects, preventing any potential buildup of static electricity. By bonding the objects, any static charges that may have accumulated can be safely discharged to the ground, reducing the risk of electrical hazards or damage.
5.
Connecting an object that conducts electricity to the ground with another conductor
Correct Answer
C. Grounding
Explanation
Grounding is the process of connecting an object that conducts electricity to the ground with another conductor. This is done to ensure the safety of the object and the people around it. By grounding an object, any excess electrical charge can be safely discharged into the ground, preventing the risk of electric shock or damage to the object. Grounding is commonly used in electrical systems, buildings, and appliances to protect against electrical faults and to maintain a stable electrical reference point.
6.
Most electrical fires are caused by static discharge
Correct Answer
B. False
7.
Currents of less than 200 milliamperes cannot cause death
Correct Answer
B. False
Explanation
Currents of less than 200 milliamperes can still cause death. While the severity of the injury may vary depending on factors such as the duration of exposure and the path the current takes through the body, it is possible for currents below 200 milliamperes to be fatal. It is important to remember that even low levels of electric current can disrupt the normal functioning of the heart and other vital organs, leading to serious injury or death.
8.
Maintaining a relative humidity of 60 to 70 percent greatly reduces the static electricity problems associated with manufacturing paper, cloth, and fiber
Correct Answer
A. True
Explanation
Maintaining a relative humidity of 60 to 70 percent helps to reduce static electricity problems in the manufacturing of paper, cloth, and fiber. This is because higher humidity levels can help to dissipate static charges and prevent them from building up. By keeping the humidity within this range, it creates a more favorable environment for manufacturing processes that involve these materials, reducing the risk of static electricity-related issues.
9.
Driveways between lumber stacks in an open-storage lumber yard should be a minimum of 20 feet wide.
Correct Answer
B. False
Explanation
Driveways between lumber stacks in an open-storage lumber yard should not necessarily be a minimum of 20 feet wide. The width of the driveways will depend on various factors such as the size of the lumber stacks, the type of equipment used for transportation, and the maneuverability required. It is possible that in some cases, driveways narrower than 20 feet may be sufficient for efficient movement of vehicles and equipment within the lumber yard.
10.
Incineration is effective in destroying medical, chemical, and biological wastes.
Correct Answer
A. True
Explanation
Incineration is a highly effective method for destroying medical, chemical, and biological wastes. The high temperatures reached during the process can effectively break down and destroy these types of hazardous wastes. Incineration also helps to reduce the volume of waste, making it a practical solution for waste management. Additionally, the process can generate energy through the combustion of the waste, making it a potentially sustainable option. Therefore, the statement is true.
11.
Making sure that incompatible products are kept away from each other in warehouses is a simple matter in most jurisdictions.
Correct Answer
B. False
Explanation
In most jurisdictions, making sure that incompatible products are kept away from each other in warehouses is not a simple matter. This implies that there are certain complexities or regulations in place that make it difficult to ensure the separation of incompatible products. Therefore, the statement is false.
12.
During warehouse inspections, fire inspectors should gather information about plant personnel's level of training.
Correct Answer
A. True
Explanation
During warehouse inspections, fire inspectors should gather information about plant personnel's level of training because it is crucial to ensure that all employees are adequately trained on fire safety protocols and procedures. This information is essential in assessing the overall preparedness of the plant in case of a fire emergency. Inspectors need to verify that employees have received proper training to prevent and respond to fire incidents effectively, reducing the risk of injuries or fatalities. Additionally, having well-trained personnel increases the likelihood of successful fire prevention and control measures, minimizing property damage and financial losses.
13.
Shop rags or towels stored in welding or cutting areas should be kept in approved metal containers with lids.
Correct Answer
B. False
Explanation
Shop rags or towels stored in welding or cutting areas should not be kept in approved metal containers with lids. This is because these containers can pose a fire hazard due to the potential for spontaneous combustion of the oily or greasy rags. Instead, these rags should be stored in approved fire-resistant containers or disposed of properly to prevent any accidents or fires.
14.
A hot work program should include a form that requires the person requesting the permit to ensure adherence to all fire prevention safeguards.
Correct Answer
B. False
Explanation
A hot work program should include a form that requires the person requesting the permit to ensure adherence to all fire prevention safeguards. This statement is false. While a hot work program may require a form to be filled out for permit requests, it is not necessary for the form to include a requirement for the person to ensure adherence to all fire prevention safeguards. The responsibility for adhering to fire prevention safeguards should lie with the person performing the hot work, not the person requesting the permit.
15.
The mechanical equipment in an HVAC system must be enclosed in a separate room with a minimum fire-resistance rating of one hour.
Correct Answer
A. True
Explanation
The mechanical equipment in an HVAC system must be enclosed in a separate room with a minimum fire-resistance rating of one hour to ensure safety. This requirement is necessary to prevent the spread of fire and protect the equipment from potential damage. By having a fire-resistant enclosure, any fire incidents can be contained within the room for a specified period, allowing time for evacuation and firefighting measures to be implemented. Therefore, it is essential to comply with this regulation to maintain a safe and secure HVAC system.
16.
Class 2 HVAC filters, when clean, will not contribute to a fire and will emit very small quantities of smoke when attacked by flames.
Correct Answer
B. False
Explanation
Class 2 HVAC filters, when clean, will not contribute to a fire and will emit very small quantities of smoke when attacked by flames. This statement is false. Class 2 HVAC filters, when clean, can still contribute to a fire and emit smoke when attacked by flames. Therefore, the correct answer is False.
17.
An active smoke control system may exhaust combustion products through the building's HVAC system.
Correct Answer
A. True
Explanation
An active smoke control system is designed to remove smoke and combustion products from a building in the event of a fire. One way this can be done is by exhausting the smoke through the building's HVAC (heating, ventilation, and air conditioning) system. This helps to prevent the spread of smoke and maintain a safe environment for occupants.
18.
Some types of heaters may be illegal in specific types of occupancies.
Correct Answer
A. True
Explanation
The statement suggests that certain types of heaters may not be allowed or permitted in certain types of buildings or spaces. This could be due to safety regulations or potential hazards associated with those specific heaters. Therefore, it is true that in specific occupancies, certain types of heaters may be illegal.
19.
The containers used in a dry-chemical fire protection system are basically the same as those used in portable fire extinguishers.
Correct Answer
A. True
Explanation
The statement is true because dry-chemical fire protection systems and portable fire extinguishers both use containers to store and dispense the fire suppressant material. These containers are designed to be portable and easy to handle, allowing them to be used in various fire protection scenarios. Therefore, the containers used in both systems are essentially the same.
20.
Wet chemical fire protection systems are recommended for electrical fires.
Correct Answer
B. False
Explanation
Wet chemical fire protection systems are not recommended for electrical fires because they can conduct electricity and potentially cause further damage or harm. Instead, dry chemical fire extinguishers or carbon dioxide (CO2) extinguishers are typically used to suppress electrical fires as they do not conduct electricity.
21.
The finishing area of an occupancy includes the interiors of the spray area's exhaust ducts.
Correct Answer
A. True
Explanation
The statement is true because the finishing area of an occupancy does include the interiors of the spray area's exhaust ducts. The finishing area refers to the space where the final touches and treatments are applied to a product or surface. In this case, the spray area's exhaust ducts are part of the finishing process as they help remove any fumes or particles generated during spraying. Therefore, the interiors of these ducts are considered part of the finishing area.
22.
Buildup of paint materials on walls of a spray booth can act as an insulator and render grounding equipment useless.
Correct Answer
A. True
Explanation
The buildup of paint materials on the walls of a spray booth can act as an insulator, preventing the grounding equipment from effectively discharging any static electricity that may be present. This can lead to a dangerous buildup of static electricity within the booth, increasing the risk of fire or explosion. Therefore, it is important to regularly clean and maintain the walls of a spray booth to prevent this buildup and ensure the grounding equipment remains effective.
23.
Dipping processes should be located in an egress area whenever possible.
Correct Answer
B. False
Explanation
The statement suggests that dipping processes should be located in an egress area whenever possible. However, this statement is false. Dipping processes should not be located in an egress area. Egress areas are designated for safe and efficient exit in case of emergencies. Placing dipping processes in these areas can obstruct the path to safety and increase the risk of accidents. Therefore, it is important to locate dipping processes in appropriate areas that do not interfere with egress routes.
24.
Any oil quenching tank over 150 gallons must have a bottom drain that will open automatically or manually in the event of a fire.
Correct Answer
B. False
Explanation
The statement is false because it states that any oil quenching tank over 150 gallons must have a bottom drain that will open automatically or manually in the event of a fire. This is not true as there may be other safety measures or requirements for oil quenching tanks over 150 gallons in the event of a fire, but having a bottom drain that opens automatically or manually is not a universal requirement.
25.
The first in a series of dust explosions is usually the most severe.
Correct Answer
B. False
Explanation
The statement "The first in a series of dust explosions is usually the most severe" is false. Dust explosions can occur in a series, but it is not necessarily the case that the first one is the most severe. The severity of a dust explosion depends on various factors such as the concentration of the dust, the presence of ignition sources, and the containment of the explosion. Each dust explosion in a series can have different levels of severity based on these factors.
26.
The dust hogger is the most common location of fires in woodworking operations.
Correct Answer
A. True
Explanation
The statement suggests that the dust hogger is the most common location of fires in woodworking operations. This means that fires are more likely to occur in the dust hogger compared to other areas in woodworking operations.
27.
Metal dusts present a considerably lower explosion hazard than grain dust or wood dust.
Correct Answer
B. False
Explanation
Metal dusts actually present a considerably higher explosion hazard compared to grain dust or wood dust. This is because metal dusts are often more reactive and have a lower ignition temperature, making them more prone to explosions. Additionally, metal dust particles are typically smaller and have a larger surface area, which increases the likelihood of a dust explosion. Therefore, the statement that metal dusts present a lower explosion hazard is incorrect.
28.
A fire inspector must actually visit a site proposed for open burning before issuing a permit.
Correct Answer
A. True
Explanation
In order to ensure the safety and compliance with regulations, a fire inspector is required to physically visit a site before granting a permit for open burning. This allows them to assess the area, evaluate potential risks, and determine if the proposed site meets the necessary criteria for safe burning. By visiting the site, the fire inspector can make an informed decision regarding the issuance of the permit, ensuring that proper precautions are taken to prevent any accidents or hazards.
29.
Fire in approved burn containers should not be within 50 feet of a structure.
Correct Answer
B. False
Explanation
The statement is false because fire in approved burn containers should be within 50 feet of a structure.
30.
Inside storage of tires should be in accordance with local code requirements or NFPA 231D.
Correct Answer
A. True
Explanation
The statement is true because it is important to store tires properly to ensure safety. Local code requirements or NFPA 231D provide guidelines for the safe storage of tires. Following these regulations helps prevent hazards such as fire, as tires can be highly flammable. Therefore, it is necessary to comply with local codes or NFPA 231D when storing tires.
31.
HPM's may be stored in specially designed rooms within the manufacturing building itself.
Correct Answer
A. True
Explanation
HPM stands for Hazardous Production Materials. The statement suggests that HPM's can be stored in specially designed rooms within the manufacturing building itself. This implies that the statement is true.
32.
Which of the following materials is NOT a good conductor?
Correct Answer
B. Glass
Explanation
Glass is not a good conductor of electricity because it is an insulator. Unlike copper and aluminum, which are metals and have free electrons that can easily move and carry electric charge, glass does not have free electrons and therefore cannot conduct electricity efficiently. Glass is often used as an insulating material to prevent the flow of electric current.
33.
What does I stand for in Ohm's Law (E=I.R)?
Correct Answer
B. Current
Explanation
In Ohm's Law (E=I.R), the letter "I" stands for current. Current refers to the flow of electric charge through a conductor or circuit. It is measured in amperes (A) and represents the rate at which charge moves past a given point in the circuit. In the equation, "I" represents the current, while "E" represents the voltage or electromotive force, and "R" represents the resistance.
34.
Which of the following characteristics of electricity corresponds to friction loss in a fire hose?
Correct Answer
C. Ohms
Explanation
Friction loss in a fire hose is similar to the concept of resistance in electricity. Ohms is the unit used to measure electrical resistance. When water flows through a fire hose, friction between the water and the walls of the hose causes a loss of pressure. Similarly, in electricity, the flow of current encounters resistance, which leads to a loss of voltage. Therefore, the characteristic of electricity that corresponds to friction loss in a fire hose is ohms.
35.
Why is battery recharging especially hazardous?
Correct Answer
C. Hydrogen gas produced during this operation can ignite explosively
Explanation
During battery recharging, hydrogen gas is produced as a byproduct. This hydrogen gas is highly flammable and can ignite explosively if exposed to a spark or flame. This makes battery recharging especially hazardous as it poses a risk of fire or explosion.
36.
When can static discharge occur?
Correct Answer
C. When there is no good electrical path between two materials
Explanation
Static discharge occurs when there is no good electrical path between two materials. In this scenario, an accumulation of static electricity can build up on one material and discharge to another material when they come into contact or are close together. This discharge can result in a sudden flow of electricity, causing a spark or a shock.
37.
Which means of ionizing the air to dissipate static charges is applicable to processes involving cotton, wool, or silk?
Correct Answer
A. High voltage device
Explanation
A high voltage device is applicable to processes involving cotton, wool, or silk for dissipating static charges. This is because high voltage devices generate a high electric field, which ionizes the air and allows the charges to be neutralized. Cotton, wool, and silk are natural fibers that can easily accumulate static charges, so using a high voltage device can effectively remove these charges and prevent any potential damage or hazards.
38.
For open yard storage, what is the maximum recommended height for stacks of wood in a lumberyard?
Correct Answer
C. 20 feet
Explanation
The maximum recommended height for stacks of wood in a lumberyard for open yard storage is 20 feet. This height limit is likely based on safety considerations such as preventing the stacks from collapsing or becoming unstable, as well as ensuring ease of access and maneuverability within the yard. It is important to adhere to this recommendation to maintain a safe and organized lumberyard environment.
39.
What are the maximum recommended dimensions for a driveway grid in an open-storage lumberyard?
Correct Answer
A. 50 feet by 150 feet
Explanation
The maximum recommended dimensions for a driveway grid in an open-storage lumberyard are 50 feet by 150 feet. This size allows for ample space to accommodate vehicles and equipment necessary for transporting and organizing lumber. It provides enough room for maneuverability and efficient movement within the lumberyard.
40.
What resource should a fire inspector consult for specific requirements for lumberyards?
Correct Answer
C. Local codes
Explanation
A fire inspector should consult local codes for specific requirements for lumberyards. Local codes are regulations and standards set by the local government that are specific to a particular area. These codes outline the specific requirements and guidelines that must be followed to ensure fire safety in lumberyards. By consulting local codes, the fire inspector can ensure that the lumberyard is complying with the necessary fire safety measures and regulations.
41.
What are the two main hazards associated with recycling plants?
Correct Answer
B. Hazardous processes and bulk storage of combustible materials
Explanation
Recycling plants involve hazardous processes such as sorting, shredding, and melting materials, which can pose risks to workers and the environment. These processes can release toxic fumes, dust, and chemicals, leading to potential health hazards. Additionally, recycling plants often store large quantities of combustible materials, such as paper, cardboard, and plastics, which can increase the risk of fire and explosions. Therefore, the two main hazards associated with recycling plants are hazardous processes and bulk storage of combustible materials.
42.
What is the fire inspector's primary concern at woodworking facilities?
Correct Answer
A. Dust fires
Explanation
The fire inspector's primary concern at woodworking facilities is dust fires. Woodworking facilities produce a significant amount of wood dust, which can accumulate and become a fire hazard. These dust fires can spread quickly and cause significant damage to the facility and potentially harm employees. Therefore, the fire inspector focuses on ensuring that proper measures are in place to mitigate the risk of dust fires, such as regular cleaning and maintenance, proper ventilation, and the use of fire-resistant materials.
43.
Small pieces of metal that wear off woodworking machinery during milling are called _____
Correct Answer
B. Tramp
Explanation
The correct answer is "tramp" because it refers to small pieces of metal that wear off woodworking machinery during milling. "Hot shots" and "butts" do not accurately describe this concept.
44.
How are metal pieces removed from wood dust or conveyors?
Correct Answer
C. Magnetism
Explanation
Metal pieces can be removed from wood dust or conveyors using magnetism. This is because metals are magnetic materials, and a magnet can attract and separate the metal pieces from the wood dust or conveyors. By using a magnet, the metal pieces can be easily collected and separated, making it an effective method for removing metal pieces from wood dust or conveyors.
45.
What is the most common cause of fires & explosions in industrial furnaces & ovens?
Correct Answer
B. Human error
Explanation
Human error is the most common cause of fires and explosions in industrial furnaces and ovens. This can include mistakes made during operation, maintenance, or troubleshooting of the equipment. Human error can lead to improper handling of flammable materials, failure to follow safety procedures, or negligence in monitoring and controlling the temperature and pressure levels. These errors can result in ignition of combustible materials, overheating, or other hazardous conditions that may lead to fires and explosions.
46.
Which of the following statements regarding hazards associated with ovens and furnaces is true?
Correct Answer
B. Ovens processing sufficient combustion materials to sustain a fire must be equipped with automatic sprinklers or water spray
Explanation
Ovens processing sufficient combustion materials to sustain a fire must be equipped with automatic sprinklers or water spray because this is a safety measure to prevent and control fires in these types of ovens. It is important to have these safety devices in place to minimize the risk of fire spreading and causing damage or harm.
47.
Which of the following is NOT typically included in regulations that control open burning?
Correct Answer
B. Fires used to cook food for human consumption
Explanation
Regulations that control open burning typically include restrictions on burning trash in barrels and campfires. However, fires used to cook food for human consumption are generally not included in these regulations. This is because cooking fires are usually small and controlled, posing less risk of spreading and causing harm to the environment. Additionally, cooking fires are often necessary for outdoor activities such as camping and picnics, making them exempt from open burning regulations.
48.
Which of the following statements is correct?
Correct Answer
C. Tar kettles should be no closer than 10 feet to exits or means of egress
Explanation
The correct statement is that tar kettles should be no closer than 10 feet to exits or means of egress. This means that tar kettles, which are used for heating and applying tar or asphalt, should be positioned at a safe distance from exits or pathways that lead to safety in case of an emergency. This is important to ensure the safety of individuals in the event of a fire or other hazardous situations.
49.
Which of the following is NOT a special concern regarding fires where tires are stored?
Correct Answer
A. Explosion potential
Explanation
The correct answer is explosion potential. This means that explosion potential is not a special concern regarding fires where tires are stored. This suggests that there are other concerns related to fires where tires are stored, such as flame intensity and toxic oil.
50.
Which of the following statements regarding tire storage operations is NOT true?
Correct Answer
C. High expansion foam is not effective for suppressing inside tire storage fires
Explanation
High expansion foam is not effective for suppressing inside tire storage fires. This means that high expansion foam is effective for suppressing inside tire storage fires.