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45 Cards in this Set
- Front
- Back
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The term churn refers to a pump that is
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running but all discharges are closed
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Which of the following fire pumps is driven by an electric motor installed on top of the pump?
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Vertically mounted split-case pump
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Which of the following parts of the controller for electric drivers provides overcurrent protection by opening if too many amps are being drawn?
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Circuit breaker
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A flow test of the pump assembly is required
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annually
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Primary performance criteria standards for fire pump testing are contained in
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NFPA 20
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What is the purpose of a speed governor on a steam turbine controller?
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Maintain the rated speed for the maximum pump load
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Why are there so may indicating valves in a fire pump installation?
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provide the ability to isolate components
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Which of the following statements about diesel engines is most accurate?
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They are usually more expensive than electric drivers
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If a manufacturer's reccomendations are not available for a preventative maintenance program, adopt a program that adheres to
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NFPA 25
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Fire pump units that are located outdoorsor in buildings other than the building being protected must be located at least
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50 feet away from the protected building
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Which of the following parts of the controller for electric drivers indicates when power is available to the pump control panel?
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Pilot lamp
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Only qualified personnel should service the pump controller because of
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high-voltage wiring
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Which of the following statements about vertical-shaft turbine pumps is most accurate?
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The shaft can be water lubricated or oil lubricated
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On a diesel engine the tachometer indicates the
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revolutions per minute (rpm) of the engine
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Which of the following parts of the controller for electric drivers is used to shut off the motor after the situation has returned to normal?
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Running period timer
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Which of the following types of pump drivers is the least acceptable for use with modern fire pumps?
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gasoline engines
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Which of the following statements about electric motors is most accurate?
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They require a relatively small amount of maintenance
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Which of the following components has the purpose of preventing pressures from reaching levels that are high enough to damage system piping or fittings?
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Relief valve
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Indoor fire pump units must be
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seperated from all other areas of the building by fire rated construction
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Which of the following components is used to prevent false starts and maintain constant pressure on the fire protection system?
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Pressure maintenance pump
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Which of the following fire pumps is most likely to use a well or underground storage tank as a water source?
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Vertical-shaft turbine pump
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The only suitable application for steam turbines is when an uninterrupted supply of steam is available
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in sufficient quantities and at sufficient pressure
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If the pump room is not constantly attended, alarm signals should be
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transmitted to a constantly attended location
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A diesel engine is required to have an adjustable governor to maintain engine speed within a
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10 percent range
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Which of the following fire pumps is a variation of the horizontal split-case design and is a single-stage pump that has a centerline suction and discharge?
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End suction pumps
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On a diesel engine controller if the pump is the sole supply to standpipes or sprinkler systems, the automatic start controller should
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be wired for manual shutdown
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Which of the following statements about diesel fuel is most accurate?
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Diesel fuel is not as volatile as gasoline
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Aboveground pipe must be constructed of
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steel
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At minimum, how long should diesel engines be operated?
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30 minutes
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At a minimum, how often should pumps be operated?
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weekly
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The battery charger for a diesel engine must be capable of fully recharging the batteries within
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24 hours
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The casing for the shaft and impeller can be seperated exposing the shaft, bearing, and impeller in
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split-case pumps
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Which of the following parts of the controller for electric drivers turns on the fire pump if the water pressure on the system drops below the switch setting?
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Pressure switch
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More modern pump installations
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are equiped with a metering device for testing
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What is the purpose of a pressure maintenance pump?
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Prevent false starts
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Which of the following fire pumps is most likely to be commonly installed in all occupancy types?
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Horizontal split-case pump
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Which of the following statements about horiozontal split-case pumps is most accurate?
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horizontal split-case pumps are the most common of the split-case pumps
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When pumps require only a single gauge, it will be located
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on the discharge line
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When operating against a closed system, or at churn, a pump must not develop more than
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140 percent of its rated pressure
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Which of the following fire pumps is a single-stage pump designed to fit into the intake/discharge line and has operating pressures up to 165 psi?
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Vertical inline pump
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Which of the following statements about piping is most accurate?
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Larger piping reduces the frictions loss and increases the pressure available at the pump
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All current-carrying parts of a controller for an electric motor-driven pump should be at least
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12 inches off the floor
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No standard fire pump is permitted to have a pressure rating less than
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40 psi
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The most common means of starting diesel engines for fire pumps are
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batteries
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What is the purpose of the strainer on a vertical-shaft turbine pump?
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Keep out fish, snails, leaves and other objects
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