Aircraft Power Plant And Engine Quiz
Questions and Answers
- 1.
After reviewing the aircraft/engine forms, where should you begin troubleshooting?
- A.
Discuss problem with other journeymen in the shop
- B.
Check each part of every system.
- C.
Examine the most complex unit.
- D.
Observe gauge indications.
Correct Answer
D. Observe gauge indications.Explanation
When troubleshooting an aircraft/engine, observing the gauge indications should be the first step. Gauge indications provide valuable information about the performance and health of various systems in the aircraft/engine. By carefully monitoring the gauge indications, any abnormal or out-of-spec readings can be identified, which can help in pinpointing the area or system that requires further investigation and troubleshooting. This initial observation of gauge indications helps in narrowing down the troubleshooting process and saves time by focusing on the specific area or system that may be causing the issue.Rate this question:
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- 2.
All of the options listed below are proper troubleshooting practices except...
- A.
Checking the applicable trouble areas
- B.
Understanding the function of each engine unit
- C.
Performing easy checks, then going to more difficult checks
- D.
Inspecting other areas after isolating the trouble between points
Correct Answer
D. Inspecting other areas after isolating the trouble between pointsExplanation
The correct answer is inspecting other areas after isolating the trouble between points. This is not a proper troubleshooting practice because once the trouble has been isolated between specific points, it is important to focus on those areas rather than inspecting other unrelated areas. Inspecting other areas can lead to wasted time and effort, and may not effectively solve the problem at hand. It is more efficient to concentrate on the identified trouble points and perform targeted checks and repairs in those areas.Rate this question:
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- 3.
Aircraft power plant and engine intermediate technical orders (TO) contain information on troubleshooting. This information is presented in the form of
- A.
Fix-it diagrams
- B.
Power plant charts
- C.
Mechanical drawings
- D.
Troubleshooting charts
Correct Answer
D. Troubleshooting chartsExplanation
The correct answer is troubleshooting charts. Aircraft power plant and engine intermediate technical orders (TO) provide information on troubleshooting, which is presented in the form of troubleshooting charts. These charts help technicians identify and resolve issues with the power plant and engine by providing step-by-step instructions and diagnostic flowcharts. They are a valuable resource for maintenance personnel to efficiently troubleshoot and rectify problems in the aircraft's power plant and engine systems.Rate this question:
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- 4.
To become an expert troubleshooter, you must
- A.
Be a 7-level
- B.
Have at least 5 years experience
- C.
Attend college courses in troubleshooting techniques
- D.
Understand the function of each unit within each system
Correct Answer
D. Understand the function of each unit within each systemExplanation
To become an expert troubleshooter, it is crucial to understand the function of each unit within each system. This knowledge allows the troubleshooter to identify and diagnose issues accurately, leading to effective troubleshooting and problem-solving. By understanding how each unit operates and interacts within a system, the troubleshooter can determine the root cause of the problem and apply appropriate solutions. This level of understanding is essential for becoming an expert troubleshooter and successfully resolving complex technical issues.Rate this question:
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- 5.
The F100-PW-220 engine monitoring system component that acquires faultdata from the digital electronic engine control (DEEC) and logs the faults with the time of their occurrence is the
- A.
Data collection unit (DCU)
- B.
Ground station unit (GSU)
- C.
Engine analyzer unit (EAU)
- D.
Engine diagnostic unit (EDU)
Correct Answer
D. Engine diagnostic unit (EDU)Explanation
The engine diagnostic unit (EDU) is responsible for acquiring fault data from the digital electronic engine control (DEEC) and logging the faults with the time of their occurrence. This unit is specifically designed for diagnosing and monitoring the engine's performance and detecting any faults or abnormalities. It plays a crucial role in analyzing the engine's health and providing valuable data for maintenance and troubleshooting purposes.Rate this question:
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- 6.
An understanding of trhe operating principles of engine instruments will help you decide
- A.
If an engine should be removed from an air craft
- B.
If the engine should be sent to test cell
- C.
The meanings of instrument readings
- D.
What tools are required for maintenance
Correct Answer
C. The meanings of instrument readingsExplanation
An understanding of the operating principles of engine instruments will help determine the meanings of instrument readings. By knowing how the instruments work and what they measure, one can interpret the readings accurately. This knowledge is crucial in assessing the engine's performance and identifying any potential issues or abnormalities. It enables informed decision-making regarding whether the engine should be removed from the aircraft or sent to a test cell for further examination. Additionally, understanding instrument readings aids in identifying the specific tools and maintenance procedures required to address any problems detected.Rate this question:
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- 7.
Most engine monitering gauges and instruments require some type of
- A.
Electrical valve to the indicator
- B.
Metal tubing for electron flow
- C.
Radio frequency transmitter
- D.
Transmitter and indicator
Correct Answer
D. Transmitter and indicatorExplanation
Most engine monitoring gauges and instruments require a transmitter and indicator. The transmitter collects data from various sensors and converts it into electrical signals. These signals are then transmitted to the indicator, which displays the information to the operator. This setup allows for real-time monitoring of engine parameters such as temperature, pressure, and fuel level. By using a transmitter and indicator, accurate and reliable readings can be obtained, ensuring the safe and efficient operation of the engine.Rate this question:
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- 8.
Which jet engine temperature is not measured?
- A.
Exhaust gas
- B.
Turbine inlet
- C.
Combustion inlet
- D.
Fan turbine inlet
Correct Answer
C. Combustion inletExplanation
The temperature of the combustion inlet is not measured in a jet engine.Rate this question:
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- 9.
A typical jet exhaust gas temperature (EGT) indicating system contains thermocouples, leads, an indicator, and
- A.
A resistor
- B.
A turbine inlet
- C.
A control valve
- D.
An exhaust duct
Correct Answer
A. A resistorExplanation
A typical jet exhaust gas temperature (EGT) indicating system contains thermocouples, leads, an indicator, and a resistor. The resistor is used to calibrate the EGT system and ensure accurate temperature readings. It helps to convert the electrical signals from the thermocouples into a measurable value on the indicator. The resistor plays a crucial role in the overall functionality of the EGT system by providing a reference point for temperature measurement.Rate this question:
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- 10.
The engine fuel-flow indicating system of most jet powered aircraft contains a fuel-flow
- A.
Transmitter and float valve
- B.
Control valve and a float valve
- C.
Transmitter and a fuel flow indicator
- D.
Control valve and a fuel flow indicator
Correct Answer
C. Transmitter and a fuel flow indicatorExplanation
The engine fuel-flow indicating system of most jet powered aircraft contains a transmitter and a fuel flow indicator. This system is responsible for measuring and displaying the rate at which fuel is flowing into the engine. The transmitter is used to convert the fuel flow data into an electrical signal, which is then sent to the fuel flow indicator. The fuel flow indicator, in turn, displays the fuel flow rate to the pilot or operator. This information is crucial for monitoring the engine's fuel consumption and ensuring optimal performance and efficiency.Rate this question:
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- 11.
The fuel system component of a jet engine that operates by using a water wheel concept is the
- A.
Fuel-flow transmitter
- B.
Fuel-flow indicator
- C.
Fuel-flow transmitter
- D.
Fuel remaining counter
Correct Answer
C. Fuel-flow transmitterExplanation
The fuel system component of a jet engine that operates by using a water wheel concept is the fuel-flow transmitter. This device measures the rate at which fuel is flowing through the engine and transmits this information to the fuel-flow indicator. The water wheel concept refers to the mechanism inside the transmitter that rotates in response to the flow of fuel, similar to how a water wheel rotates in response to the flow of water. This rotation is then converted into an electrical signal that can be used to display the fuel flow rate on the indicator.Rate this question:
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- 12.
The fue-flow indicator indicates the rate of fuel flow as
- A.
Pounds per hour
- B.
Gallons per hour
- C.
Pounds per minute
- D.
Gallons per second
Correct Answer
A. Pounds per hourExplanation
The fuel-flow indicator is used to measure the rate at which fuel is flowing. In this case, the indicator is measuring the rate in pounds per hour. This means that it is showing the amount of fuel being consumed in terms of weight (pounds) over a period of one hour. This measurement is commonly used in aviation to monitor fuel consumption and ensure efficient operation of the aircraft.Rate this question:
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- 13.
Two units that work together to indicate that the oil system is operating correctly are the oil pressure
- A.
Transmitter and indicator
- B.
Relief valve and indicator
- C.
Relief valve and transmitter
- D.
Synchronous unit and indicator
Correct Answer
A. Transmitter and indicatorExplanation
The oil pressure transmitter and indicator are two units that work together to indicate that the oil system is operating correctly. The oil pressure transmitter measures the pressure of the oil and sends the information to the indicator, which displays the pressure reading. This allows operators to monitor the oil pressure and ensure that it is within the desired range. If there is any issue with the oil system, such as low pressure or a blockage, it will be reflected in the readings on the indicator. Therefore, the transmitter and indicator are crucial in determining the proper functioning of the oil system.Rate this question:
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- 14.
The oil pressure indicator recieves an electrical signal from the
- A.
Gyro
- B.
Transmitter
- C.
Hydraulic unit
- D.
Synchronous unit
Correct Answer
B. TransmitterExplanation
The oil pressure indicator receives an electrical signal from the transmitter. This is because the transmitter is responsible for converting the oil pressure into an electrical signal that can be interpreted by the indicator. The transmitter measures the pressure and sends the corresponding electrical signal to the indicator, allowing it to display the accurate oil pressure reading.Rate this question:
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- 15.
The two primary units of the tachometer indicating system are the tachometer generator and tachometer
- A.
Indicator
- B.
Fuse panel
- C.
Transformer
- D.
Thermocouple
Correct Answer
A. IndicatorExplanation
The tachometer indicating system consists of two primary units: the tachometer generator and the tachometer indicator. The tachometer generator is responsible for generating electrical signals based on the rotational speed of the engine. These signals are then sent to the tachometer indicator, which is the device that displays the engine's rotational speed in revolutions per minute (RPM). Therefore, the correct answer is "indicator" as it is an essential component of the tachometer indicating system.Rate this question:
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- 16.
The N2 tachometer generator is usually driven from the tachometer drive located on the
- A.
Engine accessory section
- B.
Engine turbine section
- C.
Combustion case
- D.
Fuel control
Correct Answer
A. Engine accessory sectionExplanation
The N2 tachometer generator is typically driven from the tachometer drive located on the engine accessory section. This section of the engine houses various accessories such as the generator, starter, and hydraulic pump. By being driven from this section, the N2 tachometer generator can accurately measure the rotational speed of the engine's N2 turbine, which is important for monitoring engine performance and ensuring proper operation.Rate this question:
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- 17.
The tachometer indicator is
- A.
An electric direct-drive type instrument
- B.
An electric-magnetic-drag-type instrument
- C.
A mechanical direct-drive-type instrument
- D.
A mechanical-magnetic-drag-type instrument
Correct Answer
B. An electric-magnetic-drag-type instrumentExplanation
The tachometer indicator is an electric-magnetic-drag-type instrument. This means that it uses both electric and magnetic forces to measure the speed of rotation. The drag-type mechanism allows for accurate and precise readings by creating resistance against the rotation of the instrument. This type of tachometer indicator is commonly used in vehicles to measure the engine's revolutions per minute (RPM). It relies on the interaction between electrical and magnetic fields to provide the necessary data.Rate this question:
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- 18.
The exhaust nozzle position indicating system found on engines with afterburners is important because it
- A.
Helps the pilot determine engine power
- B.
Helps the pilot determine fuel consumption
- C.
Gives the pilot indications of electrical failures
- D.
Aids the pilot in selection of proper altitude levels
Correct Answer
A. Helps the pilot determine engine powerExplanation
The exhaust nozzle position indicating system helps the pilot determine engine power. This is because the position of the exhaust nozzle directly affects the thrust produced by the engine. By monitoring the position of the nozzle, the pilot can have a better understanding of the engine's power output.Rate this question:
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- 19.
On engines with afterburners, the possition of the exhaust nozzle is converted into an electrical signal by a
- A.
Rheostat
- B.
Rectifier
- C.
Transducer
- D.
Transformer
Correct Answer
C. TransducerExplanation
A transducer is a device that converts one form of energy into another. In the case of engines with afterburners, the position of the exhaust nozzle needs to be converted into an electrical signal. Therefore, a transducer would be the most appropriate device to perform this conversion. A rheostat is a variable resistor, a rectifier converts alternating current to direct current, and a transformer is used to transfer electrical energy between two or more circuits. None of these devices would be suitable for converting the position of the exhaust nozzle into an electrical signal.Rate this question:
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- 20.
One type of overheat detector unit used on aircraft engines consists of a hollow stainless steel tube that covers
- A.
One gold contact
- B.
Two silver contacts
- C.
Three bronze contacts
- D.
Four copper contacts
Correct Answer
B. Two silver contactsExplanation
The correct answer is two silver contacts. The overheat detector unit used on aircraft engines consists of a hollow stainless steel tube that covers two silver contacts. This design allows for efficient detection of overheating in the engine. The silver contacts are specifically chosen for their conductivity and ability to withstand high temperatures. The presence of two silver contacts ensures accurate detection and reliable functioning of the overheat detector unit.Rate this question:
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Current Version
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Mar 21, 2023Quiz Edited by
ProProfs Editorial Team -
May 08, 2011Quiz Created by
Duay337
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