A solution that can accept more solute is said to be:

For a solution to conduct electricity, it must _______________.

Nitrogen is hazardous because it is _____________.

Comparing two solutions with pH's of 2 and 4; these solutions are __________ and the solution with apH of 4 __________ than the solution with a pH of 2.

When diluting acids you should always add the _________ to the __________ to prevent uncontrolled chemical reactions.

A base is defined as a substance that yields __________ ions when dissolved in water and has a pH_________ than 7.

CO2 is used for __________

__________ is a measure of a material's ability to conduct an electrical current.

The concentration of a solution may be defined as the amount of __________ per unit volume of__________.

Strainers remove __________, ion exchangers remove __________, and filters remove __________from the process stream.

Unwanted ions that have been removed can be released from the demineralizer if the __________ of the liquid flowing through the demineralizer becomes too high.

Which one of the following does not have to be removed from service for cleaning?

When the delta P (differential pressure) becomes excessive, __________ are replaced while__________ are cleaned.

Mesh size is used when describing __________ and micron ratings are used when describing__________.

Why is radiation dose a concern when processing contaminated water through a demineralizer?

The number of active ion exchange sites available per unit volume of ion exchange resin is known as the__________

__________ is the process that removes undesirable ions that were removed from the process water during a service run by the resin and replaces them with desirable ions.

A/An __________ demineralizer is one that has the same concentration of a specific ion on the influent and effluent.

Organic and iron fouling in a demineralizer __________.

The area where hydrogen gas is produced is the __________.

Formation of a uniform layer of metal oxide on the surface of a metal that reduces the base metal thickness at a predictable rate is called __________.

Local corrosion is of concern because of __________.

General corrosion is accelerated by __________.

__________ forms a very tenacious, protective layer on the surface of steel or iron.

__________ is also know a red iron oxide.

The use of corrosion inhibitors, like Potassium Chromate, is a form of __________ to minimize corrosion.

Refining a metal results in the metal being in a/an __________ state, making it susceptible to corrosion.

Which of the following will reduce general corrosion rates?

What is not a basic condition required to promote corrosion?

Which of the following lists chemicals added to the reactor coolant system of a PWR?

Which of the following lists chemicals added to the secondary system for chemistry control?

Hydrazine is used in the primary and secondary systems to __________.

Boric acid is used to __________.

The chemicals present in the secondary system that control pH are:

Flow accelerated corrosion is controlled in part by the addition of __________ to the condensate system.

The secondary chemistry control program primarily aimed at __________.

__________ and __________ are the primary sources of impurities in the secondary system water.

Which type of piping is corrosion resistant and used when the production of corrosion products is a concern, as in systems that may come in contact with the reactor?

Which of the following valve types is best suited for throttling?

Which of the following valve types provides very fine throttling characteristics?

Throttling a gate valve can result in __________.

Relief valves exhibit __________ but not __________.

In comparison to a globe valve, a gate valve has a __________ pressure drop when fully open and is the __________ choice for throttling.

A pneumatic operator uses __________.

A __________ valve is used to control the direction of flow in a system.

Which of the following is used to connect equipment and transport fluids?

Which one of the following describes the function of a safety valve?

Heat addition that results in a change in temperature is called ______________.

The number of degrees a liquid is below its boiling point is called _____________.

A fluid that contains both liquid and vapor is called a __________________.

A vapor 5 degrees above its boiling point is a _______________.

The mass of liquid divided by the mass of the mixture is the __________________.

Which of the following will increase plant efficiency?

Using feedwater heaters _________ plant efficiency because ____________.

The primary reason for using moisture separator reheaters is to:

An air in-­leakage path to the condenser develops. Compared to conditions with no air in-­leakage, plant efficiency is now _____________.

Thermodynamic efficiency is calculated as _____________.

Two methods of improving plant efficiency are ___________ and ___________.

An increase in condenser vacuum results in ___________ turbine work and ____________ plant efficiency.

Plant efficiency is reduced by ____________.

__________ is used in both the primary and secondary system to savenge oxygen, __________ and__________ are primarily responsible for controlling the pH of the condensate system.

Failure to control secondary chemistry is most likely to result in __________.

A nuclear power plant is operating at 80% of rated power with 5 degrees of condensate depression inthe main condenser. If the condensate depression decreases to 2 degrees, steam cycle efficiency will__________ and the probability of condensate pump cavitation will __________.

A __________ valve exhibits significant accumulation and a __________ valve exhibits blowdown.

A __________ is used to prevent leakage when the __________ needs replacement.

A __________ can be used for throttling while a __________ should not be used for throttling

A bourdon tube pressure detector is located inside containment. Which of the following will have the most significant immediate effect on the accuracy of indicated pressure from the detector?

In flow measurement circuits, a square root extractor is used to convert _______ to ________ .

A level detection system uses a wet reference leg to supply a signal to a D/P cell. If the equalizing valve for the D/P cell is opened, level indication wil

There are three separate circuits measuring temperature in a system. All use the same type of RTD assensors and the same type of circuitry for indication. Two of the indications show that temperature is480°F and the third shows a temperature of 450°F. The most likely cause for this is __________.

A temperature measuring circuit using a thermocouple relies on the principle that ________ .

Compared to thermocouples, resistance temperature detectors are:

Which type of pressure detector senses pressure by the axial deflection of a metallic plate?

Tank level is being monitored by two differential pressure detectors. Detector 1 was calibrated at 180°F and detector 2 was calibrated at 90°F. Current liquid temperature in the tank is 150°F.Given these conditions, __________.

The part of a centrifugal pump that prevents high pressure discharge water from leaking to the low pressure suction side of the pump is the _______________.

The absolute pressure at the suction of a pump minus the vapor pressure of the fluid is____________.

A pump is started and fails to build discharge pressure. Motor current is below normal operating current. Which of the following conditions is indicated?

Impeller damage and pump vibration are common results of ____________.

Which of the following conditions is indicated by overheating of the pump and high discharge pressure?

Operating a pump with the maximum flowrate and lowest discharge head is called ___________.

Which of the following would reduce the likelihood of cavitation?

The conversion of kinetic energy to Pv energy occurs in what part of the pump?

Why should you always start a PD pump with the discharge valve open?

The most common method for varying flow in most systems with centrifugal pumps is by____________.

The reduction in flow that occurs near the shutoff head of a positive displacement pump is referred to as _________ and is the result of_________________.

A centrifugal pump is started and the following indications are observed:

Oscillating flow

Oscillating discharge pressure

Oscillating amps

This indicates that the pump is experiencing ____________.

A counter flow heat exchanger is more efficient because ___________________.

In a ___________ heat exchanger the hot fluid mixes with the cold fluid.

In a ____________ heat exchanger, different fluids are on the tube side and shell side of the heat exchanger.

The inlet tube side flow in a U-­tube heat exchanger is separated from the outlet tube side flow by the use of a __________.

The __________ forms a casing around the region where heat transfer occurs.

Thermal shock occurs when the __________ of the fluid in a system __________ increases or decreases causing a differential expansion or contraction of the metal.

lbm/hr are the units used for ___________________.

The property of a fluid that measures its resistance to flow is called ______________.

___________ flow exhibits s parabolic velocity profile and ___________ flow exhibits a relatively flat velocity profile.

Energy expressed in feet is commonly called ____________.

The loss of pressure due to fluid friction is called __________ and can be reduced by increasing____________.

In a piping system, head loss undergoes a __________ change for a given change in velocity.

A pressure surge that develops in a piping system as a result of suddenly changing flow is categorized as______________.

When water hammer occurs in a piping system, __________ is being converted into ___________ .

Mass flow rate is equal to volumetric flow rate multiplied by:

During a loss of coolant accident, which one of the following heat transfer mechanisms provides the most core cooling when fuel elements are not in contact with the coolant?

Heat is transferred from the fuel into the cladding by ______________.

A plant is operating at 60% power. Which one of the following is the primary heat transfer mechanism responsible for the transfer of heat from the surface of the steam generator tubes to the feedwater?

Radiation heat transfer from the fuel is not an acceptable means of cooling the fuel because_____________.

__________ can be defined as the measure of heat input per unit time from the core to the reactor coolant system.

To increase the rate of conduction heat transfer, you should __________ the temperature difference or __________ the thickness of the material.

The difference between the set point in an automatic controller and the steady state value of the measured parameter is called:

In an automatic flow controller, the range of values around the set point of a measured variable where no action occurs is called:

An automatic flow controller is being used to position a valve in a cooling water system. A signal from the valve proportional to valve position is returned to the controller. This signal is referred to as:

The level in a tank is controlled by an automatic level controller. Level is initially at the setpoint when a drain valve opens. When level decreases to 5% below the setpoint the level controller opens a makeup supply valve. After a few minutes level is 5% above the setpoint and the makeup valve closes. With the drain valve still open, level continues to oscillate 5% above and below the setpoint. The controller in this system uses primarily __________ control.

A valve controller is designed to ensure that the valve goes fully closed when a signal is received to initiate valve movement to close the valve. What feature of the controller is designed to make this happen?

In order to position a large valve to control steam flow to a turbine, a device called a ______ is used between the controller for the valve and the valve operator.

Rotor bowing in the main turbine is prevented by using __________.

The __________ is/are used to absorb and limit axial movement of the turbine shaft.

The purpose of a steam turbine is to convert __________ energy into __________ energy.

According to the __________ principle of steam turbine operation, stationary nozzles convert some of the steam's thermal energy into kinetic energy, which is then converted into mechanical energy in the form of movement of the turbine wheel and rotor.

Which one of the following turbine components is responsible for supporting the bearing for the rotor?

Some symptoms of __________ are noise and excessive vibration.

In a __________ turbine, the nozzles are attached to the rotor disk and the steam expands in the moving nozzles converting the steam's thermal energy into kinetic energy and producing a force. This force causes rotation in the opposite direction of the steam jet.

It is better to monitor __________ display during a plant transient because __________.

A device with 4 inputs that has a "true" output when at least 3 of the 4 inputs are "true" is a/an__________.

_________ interlocks determine the proper sequence of placing equipment into operation by permitting equipment to start only when requirements are met.

__________ displays provide very accurate indication of measurements by eliminating the need to interpolate between meter indications.

__________ is a measure of a fluids ability to resist flow.

Which of the following does NOT affect lubrication?

__________ fittings are used where the retention of the lubricant at the bearing surface would be difficult.

A Circulation Lubrication System ...

Which one of the following is NOT a type of lubricant?

Sampling oil can reveal:

__________ friction offers the most resistance to motion.

One purpose of lubrication is to:

The purpose of refrigeration is __________.

A refrigeration ton is a measure of __________.

If heat is added to a system at saturation conditions, __________ (Assume: System remains at saturation conditions).

The amount of heat that must be added or removed from a system to change the phase of the system from liquid to vapor or from vapor to liquid is known as __________ heat.

In a basic refrigeration cycle, the __________ picks up heat in the __________ where it is converted to a warm vapor.

Motor overload, low refrigerant suction pressure, and __________ are common causes of a refrigerant compressor trip.

A high crankcase oil temperature in a compressor can be caused by __________.

Isolating the air flow through an air handling system is best accomplished by the use of __________blade dampers

Removing undesirable elements from recirculated air is the purpose of _______________.

Which type of fan blade is used for industrial, dust ­laden gas flow?

_____________ removes gases and vapors from recirculated air.

The primary function of ____________ is to keep rain and snow from entering the building.

In a packaged heat pump system operating in the heating mode, the __________ acts as the condenser and the ____________ acts as the evaporator.

Which one of the following is not a common method of controlling ventilation fan output?

A detector that is used as a source range nuclear instrument and who's output changes significantly as applied voltage is changed operates in the __________ region of the Gas Filled Detector Characteristic curve.

Which system provides indications and alarms when general radiation levels in the plant become too high?

A detector is operating in the Geiger­-Mueller region of the Gas-­Filled Detector Characteristic Curve. Its output __________.

Which type of detector is used to monitor the core during operation in the power range?

In the __________ region of the Gas=­Filled Detector Characteristic Curve the voltage is not sufficient to collect all of the primary ions formed.

Which type of radiation detector would be the best to use to determine the presence or absence of radiation?

Information regarding the power distribution in the reactor core is obtained from __________.

Which component in a scintillation radiation detector provides an electrical signal proportional to the light intensity at the component?

Which statement describes the ex-­core neutron monitoring system?

Neutron sensitive detectors are installed in wells next to the reactor vessel to detect neutrons that do not escape from the core.

During paralleling operations of the main generator to the grid, closing the generator output breaker with the generator voltage slightly lower than grid voltage and with generator frequency slightly higher than grid frequency will result in:

In an AC induction motor, a voltage is applied to the __________, creating a rotating magnetic field, which induces a voltage in the __________.

Which one of the following describes the motor current indications that would be observed during the start of a large AC motor­​driven centrifugal pump with a closed discharge valve?

The number of starts for an electric motor in a given period of time should be limited because overheating of the __________ can occur due to the _________ counter electromotive force produced at low rotor speeds.

Closing the output breaker of the main generator with the frequency of the generator 0.1 Hz higher than grid frequency will result in the generator...

In the main generator, a DC current is applied to the __________ windings located __________.

What is the benefit of using a three­phase AC generator instead of a single­phase generator?

__________ describes the effect of the magnetic field produced by the current flow in the armature windings in the main generator, which can offset, aid, or oppose the rotor field.

A main generator is connected to the grid. Which one of the following conditions will exist on the generator if it is operating underexcited?

With regards to the power triangle, what kind of power in an AC circuit is associated with the expansion and contraction of magnetic and electrostatic fields?

Which one of the following should be performed to completely de­energize a circuit breaker including its control and indication power?

A molded case circuit breaker has tripped due to overload. In order to close this circuit breaker, the breaker handle must be moved from the.....

When a typical 4160 volt breaker is racked to the "Test" position, control power is __________ the breaker and the breaker is __________ the load.

High voltage electrical disconnects are used to ....

While remotely investigating the condition of a typical normally-­open motor control center (MCC) feederbreaker, an operator observes the following indications:

Green breaker position indicating light is out.

Red breaker position indicating light is lit.

Alternate MCC feeder breaker green position indicating light is lit.

MCC voltmeter indicates 480 VAC.MCC ammeter indicates zero amperes.

Based on these indications, the operator should report that the feeder breaker is __________ and racked _________.

A thermal overload device for a large motor protects the motor from...

A relay scheme that must be reset manually after all other protective relay input signals are reset is:

A relay that compares the input and output of a transformer is:

The relationship between a transformer's primary and secondary voltages is determined by the:

Which components isolate the transformer's connections from its grounded casing?

When the customer increases load, the increased transformer secondary current flow causes the effect of the primary winding CEMF to be __________, causing __________ generator current to flow.

Which type of transformer loss comes from dissipating the heat produced by current flow through the transformer windings?

Why are transformer cores often laminated and insulated?

Which one of the following is NOT an alarm typically associated with a main distribution transformer?

Which type of transformer is used in circuits for voltage measurement and indication?

In an electrical transformer, the __________ winding is attached to the power source, while the__________ winding is attached to the load.

Fission products that have large microscopic cross sections for absorption of thermal neutrons are called:

Following a reactor shutdown from 100% power, peak samarium will occur ______.

Following a refueling reactor power is returned to 100% power. Equilibrium samarium will be reached in __________.

Equilibrium samarium at 50% power is _____________ equilibrium value at 100% power.

Following a reactor trip from sustained power operation the Xenon­135 removal process consists primarily of:

Following a two week shutdown, a reactor is taken critical and ramped to full power in 6 hours.  How long will it take to achieve an equilibrium xenon condition after the reactor reaches full power?

A reactor trip has occurred following two months of operation at steady state 100% power. How soon after the trip will the reactor be considered xenon­-free?

As reactor coolant boron concentration is reduced the differential boron worth (pcm/ppm) becomes:

Differential boron worth becomes more negative as:

Differential boron worth becomes __________ as moderator temperature increases because a 1 ppm increase at higher temperature adds __________ boron atoms to the core.

Which one of the following has the smallest microscopic cross section for absorption of a thermal neutron in an operating reactor?

The __________ coefficient is the amount of reactivity added by a unit increase in the dissolved neutron poison concentration.

To compensate for the __________ reactivity added by fuel burnup over core life, the boron concentration must be __________ in the reactor coolant system.

Due to the __________ boron concentration at EOL, a significantly __________ amount of water must be removed to cause the same ppm decrease as would be needed at BOL.

As core age increases, the differential boron worth becomes more __________ because of __________.

Which one of the following isotopes is the most significant contributor to resonance capture of neutrons in the reactor core at the beginning of core life?

Which one of the following will cause the Doppler Coefficient to become more negative?

Which one of the following will directly result in a less negative fuel temperature coefficient? (Consider only the effect of the change in the listed parameters.)

For the same power level, as the core ages the fuel temperature coefficient becomes __________ negative because __________.

On a power increase, power defect __________ reactivity.

The __________ coefficient of reactivity is defined as the amount of reactivity added by a unit increase in fuel temperature.

Changes in neutron absorption cross section at specific non­thermal neutron energies resulting in the capture of a neutron at those specific non­thermal neutron energies is known as __________.

Under which one of the following conditions is the moderator temperature coefficient the MOST negative?

The reactor has operated at steady­state 100% power for six months. Compared to six months ago, the current moderator temperature coefficient is:

Assume that the core is undermoderated at the end of cycle (EOC). Which one of the following correctly describes the effect of a boric acid addition to the moderator?

A reactivity coefficient can be determined by:

Flux redistribution is a shift in neutron flux distribution throughout the core, due to changes in __________ and __________.