that is actually dissipated in the load and is measured in watts
Which one of the following is at a relatively high value when a centrifugal pump operates at shutoff head
Available net positive suction head
A neutron that possesses the same kinetic energy as its surroundings is called a _______ neutron.
The density of seawater is 64.3 ibm per cubic foot. What is the pressure in PSIA 75 feet below the surface of the ocean?
35 feet below sea level is 1 atmosphere or 14.7 PSIA.
70 feet would be 2 atmospheres or 29.4
75 feet would be 33.5 plus the atmosphere above sea level which is another 14.7
The main reason for keeping condensate out of the steam lines is to
prevent water/steam hammer
To equal the heat transfer capabilities of a counter-flow heat exchanger a parallel flow heat exchanger must
have more heat transfer area
Which one of the following operations will cause a decrease in available net positive suction head for a centrifugal pump?
throttling open the pump discharge valve.
Phase of the reactor coolant at the core exit, inside the reactor vessel
During normal plant operation at power a crack in the shell of the main condenser that results in a decreased condenser vacuum.
higher absolute pressure
The condition where two phases of a substance coexist at a given temp & pressure is called
Condensate depression is a term that describes the
amount of condensate sub-cooling in the condenser hotwell
Mass contained in a unit volume of a substance
Delayed neutron Fraction
# of fission neutrons born as delayed neutrons/# of neutrons born from fission
An operator should never attempt to manually engage the motor on a motor operated valve whose motor is operating because it might damage the________
Worm gear pinion
If the pressure sensed by a bourdon tube increases the curvature of the detector will ______ because of the greatest force being applied to the ______ curve of the detector
If the steam pressure input to a density compensated steam flow instrument fails high, the indicated flow rate will__________
increase, because the density input had increased
Which one of the following types of radiation upon entering an ion chamber radiation detector will result in the greatest pulse size
Geiger-Muller tube radiation detector are able to ______
make use of gas amplification
The level in an OPEN tank is monitored by a differential pressure transmitter using ambient pressure for a reference. The tank and transmitter are both located within the aux buidling.
If a large exhaust fan is started, lowering the air pressure in the building indicated level will ________
not be affected.
Open tank and open reference would have the same change when the atmosphere changed
A reactor is classified as subcritical when Keff is _______ and the reactor does not have a self supporting _______
less than 1, chain reaction
The purpose of a demineralizerl is to _______
reduce conductivity and corrosion and wear products
Ammonia, NH3, is a result of the use of what scavenging agent during reactor operations at high tempatures
Which of the following methods is NOT used to remove dissolved oxygen from reactor water
Which chemical reaction represents the reduction step of the oxidation reduction process
H2O+ + e- >>> H + H2O
Gas binding in a centrifugal pump is a condition in which the pump
Volute is filled with steam or air
Identify three types of bulk defects commonly found in structural materials
crack, gas space, inclusion
The stress at which a pre-determined amount of permanent deformation of a material occurs is called the
The work required to deform one cubic inch of material until it fractures