New CFPS Exam Simulator & CFPS Sample Questions Pdf
New CFPS Exam Simulator & CFPS Sample Questions Pdf
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CFPS practice exam will provide you with wholehearted service throughout your entire learning process. This means that unlike other products, the end of your payment means the end of the entire transaction our NFPA CFPS Learning Materials will provide you with perfect services until you have successfully passed the Certified Fire Protection Specialist (CFPS) CFPS exam.
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CFPS Sample Questions Pdf, Free CFPS Sample
By keeping minimizing weak points and maiming strong points, our NFPA CFPS exam materials are nearly perfect for you to choose. As a brand now, many companies strive to get our Certified Fire Protection Specialist (CFPS) CFPS practice materials to help their staffs achieve more certifications for our quality and accuracy.
NFPA Certified Fire Protection Specialist (CFPS) Sample Questions (Q83-Q88):
NEW QUESTION # 83
A multistage centrifugal fire pump is defined as
- A. a pump installed on more than one floor or one building.
- B. being able to operate with a diesel, steam or electric driver.
- C. having two or more impellers on one shaft as a single unit.
- D. requiring more than one input location connection.
Answer: C
Explanation:
Explanation
Fire pump
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A multistage centrifugal fire pump is defined as having two or more impellers on one shaft as a single unit. A multistage centrifugal pump is a type of centrifugal pump that uses multiple impellers to increase the pressure and flow of water.Each impeller acts like a single-stage pump within a chain of pumps, and the water passes through each impeller in series, gaining pressure and velocity at each stage1.A multistage centrifugal fire pump is used to provide high-pressure water for fire protection systems, especially in high-rise buildings or large industrial facilities2.A multistage centrifugal fire pump can be driven by an electric motor, a diesel engine, or a steam turbine3.References:
Our Guide to Multistage Centrifugal Pumps | C&B Equipment
Fire Pump Types | NFPA
NFPA 20: Changes to the fire pump standard - Consulting
NEW QUESTION # 84
The most common method of measuring flow in an open steam discharging from an orifice is by direct measurement of the velocity head using a:
- A. Pitot tube
- B. Bernoulli dial
- C. Flow meter
- D. Flow valve
Answer: A
Explanation:
Flow tubes are somewhat similar to venturi tubes except that they do not have the entrance cone. They have a tapered throat, but the exit is elongated and smooth. The distance between the front face and the tip is approximately one-half the pipe diameter. Pressure taps are located about one-half pipe diameter downstream and one pipe diameter upstream. (Back to Meter Types Table) Flow Nozzles, at high velocities, can handle approximately 60 percent greater liquid flow than orifice plates having the same pressure drop. Liquids with suspended solids can also be metered. However, use of the units is not recommended for highly viscous liquids or those containing large amounts of sticky solids.
Pitot tubes sense two pressures simultaneously, impact and static. The impact unit consists of a tube with one end bent at right angles toward the flow direction. The static tube's end is closed, but a small slot is located in the side of the unit. The tubes can be mounted separately in a pipe or combined in a single casing. Pitot tubes are generally installed by welding a coupling on a pipe and inserting the probe through the coupling. Use of most pitot tubes is limited to single point measurements. The units are susceptible to plugging by foreign material in the liquid. Advantages of pitot tubes are low cost, absence of moving parts, easy installation, and minimum pressure drop.
Elbow tap meters operate on the principle that when liquid travels in a circular path, centrifugal force is exerted along the outer edges. Thus, when liquid flows through a pipe elbow, the force on the elbow's interior surface is proportional to the density of the liquid times the square of its velocity. In addition, the force is inversely proportional to the elbow's radius.
NEW QUESTION # 85
Water supply, power distribution, and transportation are examples of ________ targets.
- A. ecoterrorism
- B. symbolic
- C. civilian
- D. infrastructure
Answer: D
NEW QUESTION # 86
When evaluating the hydraulic properties of water for fire protection system, what is the measurement of a fluid's resistance to flow?
- A. Pressure
- B. Velocity
- C. Density
- D. Viscosity
Answer: D
Explanation:
Explanation
The measurement of a fluid's resistance to flow is calledviscosity.Viscosity is the property of a fluid that describes how easily it can deform or move when subjected to a shear stress, such as the force exerted by a pipe wall or a pump1. A fluid with high viscosity, such as honey, resists flow and requires more pressure to overcome the friction between its layers.A fluid with low viscosity, such as water, flows easily and has less frictional resistance2.Viscosity affects the hydraulic properties of water for fire protection systems, such as the flow rate, pressure loss, and pump power3. Viscosity is usually expressed in units of pascal-second (Pa s) or centipoise (cP) for liquids, and is dependent on the temperature and composition of the fluid.References:
Viscosity | Definition, Facts, Formula, Units, & Examples
Viscosity - The Physics Hypertextbook
Fire Pump Types | NFPA
[12.4: Viscosity and Laminar Flow; Poiseuille's Law]
NEW QUESTION # 87
Between 1980-1998, the largest number of church structure fires in the U.S. was caused by which of the following?
- A. Cooking equipment
- B. Heating and HVAC equipment
- C. Smoking materials
- D. Incendiary or suspicious
Answer: B
NEW QUESTION # 88
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