2nd Class Power Engineering 2A2 Practice Exam

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• What is a constant volume process referred to as?
• What design consideration is NOT mentioned as important for a plant’s corrosion strategy?
• What process is described by the repetitive creation and destruction of surface films on metals?
• What does spheroidizing primarily achieve in the treatment of steel?
• What type of groundbed is installed 100 meters from the protected area?
• What is the most common type of concentration cell corrosion called?
• Which of the following factors increases the creep tendency of materials?
• What is a disadvantage of using an impressed current system?
• Which of the following represents one of the five points on a graph illustrating nominal stress and strain?
• Which method is used to control filming amines in a system?
• Which examination technique is NOT used in magnetic particle examination?
• What does the equation h=Δu + pv represent in boiler systems?
• What is the basic principle behind magnetic particle inspection?
• Which of the following best describes a gas cycle heat engine?
• What material primarily demonstrates allotropy based on temperature changes?
• In what pH range do bacteria grow fastest, contributing to MIC?
• Which type of atmospheric corrosion occurs at a relative humidity of 70% or higher?
• What type of joint would be mostly likely used in construction to join two pieces of metal at a right angle?
• What is a technique used for leak detection that involves a dye?
• What is a disadvantage of sacrificial anodes?
• What initiates a crack formation in hydrogen stress corrosion cracking?
• Stress Corrosion Cracking (SCC) is characterized by:
• What pH level is necessary to maintain the magnetite layer?
• Ultimate tensile strength is characterized by what key feature during testing?
• What term describes the increase in entropy due to friction and heat losses in a heat engine?
• Which statement is true regarding alloy corrosion?
• Which of the following is a condition required to produce galvanic corrosion?
• What does the ideal gas law represent?
• In the electromotive series, which metal is the cathode?
• Which term describes metals that are generally good conductors of heat and electricity?
• What is one of the three basic atomic arrangements that metals can take?
• Which type of steel cannot undergo magnetic particle inspection?
• What are the seven methods of non-destructive evaluation (NDE)?
• How does hydrogen sulphide affect metals in high strength alloys?
• What is a key advantage of using sacrificial anodes?
• What does polymorphism in metals refer to?
• What happens to temperature during an adiabatic compression process?
• Localized corrosion is best described as:
• What is a disadvantage of electrical resistance probes?
• How does the efficiency of actual heat engines compare to ideal efficiency?
• What is the approximate dew point for sulphur gases in flue gas?
• What are the two commonly recognized types of impact testing?
• What is an isobaric process?
• What is the range of a throttling calorimeter?
• What is the main characteristic of the Brinell Hardness Test?
• Which condition is NOT a factor that promotes pitting?
• What is proof stress often described as?
• What is the relationship between stress and cross-sectional area during a tensile test?
• What distinguishes the Vickers Hardness Test from others?
• Which type of corrosion is characterized by an external current flowing through water or soil?
• Which process involves introducing both carbon and nitrogen to increase hardness?
• In localized corrosion, why is it difficult to predict and control?
• What is a necessary condition for microbiologically influenced corrosion (MIC) to exist?
• What does the term "isentropic" refer to in the context of heat engines?
• Which is a factor that can affect the results of liquid penetrant testing?
• Which indentation tool is used in the Rockwell B test?
• What does the term 'mechanically connected' refer to in galvanic corrosion?
• Which of the following is a way that corrosion inhibitors function?
• How is heat rejected in the Rankine cycle typically accomplished?
• What primarily causes stray current corrosion?
• What is another name for a proof test?
• What material properties does case hardening primarily aim to enhance?
• Which of the following is NOT a common anodic inhibitor?
• What is the general formula for efficiency in the Rankine cycle?
• What components are used to define the equation for change in entropy involving enthalpy?
• What are the required units for gas law calculations?
• When selecting metal for pressure piping, which factor is least likely to be considered?
• What is the purpose of a proof test?
• What effect does quenching have on a metal?
• What does a bevel groove shape most commonly serve as?
• In the Charpy impact test, how is the specimen held?
• Which of the following processes occurs in a gas cycle?
• What does the rate of galvanic corrosion depend on?
• What is an important factor for the occurrence of caustic stress cracking in metals?
• What does electrochemistry in the context of corrosion mainly involve?
• What type of information do welding symbols provide?
• What best defines a perfect gas?
• What characterizes a reduction reaction?
• What does the first law of thermodynamics state?
• Which point on the stress-strain curve marks the maximum stress before failure?
• What does under-deposit corrosion develop from?
• What is the primary definition of corrosion?
• Which of the following is a leak testing method?
• What concentration range is typically maintained for neutralizing amines?
• How are corrosion coupons handled before testing?
• When is the Knoop test primarily utilized?
• Which factor increases the severity of galvanic corrosion?
• What is deposition corrosion primarily associated with?
• In a vapour cycle heat engine, which is the most common working fluid?
• What are the common methods of destructive testing?
• The emissivity of a body is the ratio of what?
• What is the main purpose of hardening steel?
• Which of the following statements is true regarding the Rankine cycle?
• What is a polytropic process?
• What differentiates engineering strain from true strain?
• What role does temperature play in the quenching process for hardened steel?
• What does plastic strain refer to?
• What condition is necessary for caustic embrittlement to occur in metals?
• What is the role of cooling rate in the iron-carbon equilibrium of steel?
• What occurs in an adiabatic process?
• What is the role of hydrogen probes in corrosion monitoring?
• How is liquid penetrant inspection performed?
• Flow Accelerated Corrosion primarily occurs due to what type of flow condition?
• What is critical about the use of gloves when handling corrosion coupons?
• When are groove welds typically used?
• What is the primary method of corrosion monitoring?
• What does case hardening achieve in metal processing?
• Which type of probe can measure corrosion in gas systems?
• What is entropy in thermodynamic terms?
• What do neutralizing amines react with to increase pH?
• How is enthalpy defined in thermodynamics?
• According to Dalton's Law, how is the total pressure of a mixture of gases determined?
• Which atomic structure is associated with high ductility and good thermal conductivity?
• What does a plug or slot weld involve?
• What occurs when metals react chemically with the environment?
• What can contribute to the development of weld defects?
• What are the two general forms of corrosion?
• How is the shape of the specimen for a tensile test determined?
• What is the effect of energy transfer on the potential of energy to do work?
• Which of the following best describes cathodic reactions?
• What is the term for the thickness of a weld when the root extends beyond the material surface?
• What is one method of leak testing that involves the use of gas?
• What is the minimum illumination requirement for effective remote examination?
• Why is microbial corrosion particularly challenging to control?
• What is one characteristic of a very noble metal in terms of corrosion?
• In an impressed current system, which terminal of the DC power source is the protected structure connected to?
• How do dissolved solids in water affect corrosion processes?
• What is a primary characteristic of a redox reaction?
• What is the term for the bottom edge of a weld or the deepest point of a weld?
• Which type of metallurgy focuses on the extraction and purification of metals from ores?
• What process can be used to enhance the properties of metals through structural modification?
• What do dimensional discontinuities refer to?
• What increases the rate of chloride stress corrosion cracking?
• How do cathodic inhibitors function?
• What is the specific heat of a substance?
• What is the primary function of carburizing in case hardening?
• What external factors contribute to corrosion in industrial environments?
• Which of the following is NOT a basic joint type in welding?
• What is the name of the mechanism used in a tensile test?
• What limits the effectiveness of liquid penetrant tests?
• How does temperature affect the entropy of a substance?
• What is one of the main advantages of the Vickers Hardness Test?
• What is a unique characteristic of the Scarf groove shape?
• What is the ASME standard that covers Non-Destructive Examination (NDE)?
• How does nitriding differ from carburizing?
• Which of the following is one of the main methods of cathodic protection?
• What is the study of the structure of metals known as?
• Which compounds found in fuel are most commonly responsible for causing corrosion?
• What type of carbon steel has the highest carbon content?
• What initiates hydrogen stress cracking?
• Which type of steel typically undergoes an increased risk of brittleness during the annealing process?
• What can bacteria do to accelerate corrosion mechanisms?
• What is another term for selective leaching?
• What defines a black body radiator?
• The Otto cycle is primarily associated with which type of heat engine?
• How is true strain best defined?
• Which element is a common factor for chloride stress corrosion cracking?
• In what manner are the pressures exerted on metals typically altered by their grain size?
• Which property is most directly affected by welding defects?
• What does the term "root opening" refer to in welding?
• What is the primary goal of the normalizing process in steel?
• What is the passive layer of corrosion on the boiler known as?
• What is the main function of a calorimeter?
• What is hardness a measurement of?
• According to the second law of thermodynamics, what must be done to transfer heat from a cooler system to a hotter one?
• How long should the penetrant dwell time last for effective inspection?
• What are structural discontinuities in welding?
• Which type of bacteria does not require oxygen to grow?
• How does hydrogen blistering occur?
• Which of the following is NOT a common hardness test?
• What happens to the tensile strength of a metal when its grain size is reduced?
• Why is Cp always greater than Cv?
• What principle do galvanic probe meters operate on?
• Which cycle specifies heat addition occurs at constant pressure?
• What is a primary feature of filming amines?
• Which of the following describes martensite?
• What is the main function of anodic inhibitors?
• How can weld discontinuities be classified?
• What type of defects pose a higher potential for failure in welding?
• Which condition is likely to increase soil corrosiveness?
• Which type of weld is used when the strength of the joint is not crucial?
• What is essential for a successful ultrasonic test?
• What is a fillet weld characterized by?
• What is one example of a standard groove shape used in welding?
• What is the definition of creep in solid materials?
• Which leak testing method is noted for being very sensitive and precise?
• What is pitting characterized by?
• What is a common characteristic of anaerobic bacteria?
• What role do internal flaws play in ultrasonic testing?
• How does salt increase the corrosion rate of metals?
• What is the primary characteristic of the Carnot cycle?
• What best describes elastic strain?
• Which process refers to the loss of electrons?
• Which attribute is primarily lowered as a consequence of quenching?
• What is remote examination in visual inspections?
• What is galvanic corrosion also known as?
• Which engineering principle involves comparing actual performance to ideal performance in heat engines?
• What is the goal of tempering quenched steels?
• During acidic fluid conditions, what happens to hydrogen ions in relation to the metal surface?
• Which role does an electrolyte play in a corrosion process?
• What is the approximate thickness of the magnetite layers in a boiler?
• What is the function of the boiler in the Rankine cycle?
• Which of the following is NOT a form of Stress Corrosion Cracking (SCC)?
• What property allows metals to be easily shaped and drawn into wires?
• What must be avoided to prevent interference with corrosion testing?
• What are corrosion coupons designed to do?
• At what temperature is steel typically heated for an annealing process?
• What is the distinction of a corrosion cell?
• Which annealing process is used to reduce internal stresses without reaching the austenite transformation temperature?
• Which leak testing method utilizes a vacuum?
• What is the primary function of corrosion probes/meters?
• Why is normalizing important for carbon steels containing less than 0.8% carbon?
• What is the approximate temperature increase during the normalizing process compared to the upper transition temperature?
• What occurs during oxygen pitting?
• What does the equation for change in entropy, Δs = ΔQ/T, represent?
• Which of the following is an advantage of an impressed current system?
• Which groove shape is specifically designed for providing a V-shaped joint?
• What kind of analysis does mechanical metallurgy involve?
• What is essential for sulphide stress corrosion cracking to occur?
• What procedure is recommended after removing a coupon from a rack?
• What best describes hydrogen embrittlement?
• How effective is visual identification in spotting weld imperfections?
• What is another name for a box weld?
• What factor contributes to the reduction of efficiency in heat engines?
• Selective leaching can make an alloy:
• What is the purpose of the Flare bevel groove shape?
• What loads are generally used in the Rockwell C test?
• What is the definition of facultative bacteria?
• What is the anode in an electrochemical cell?
• What are the two most common materials used for sacrificial anodes?
• What is the carbon content limit for carbon steels?
• What type of bacteria can influence corrosion in metals?
• Which type of groundbed is used when horizontal space is limited?
• What is a characteristic of separating calorimeters?