Podcast
Questions and Answers
An ideal heat engine operates between temperatures of 1200 K and 300 K. What is its maximum possible efficiency?
An ideal heat engine operates between temperatures of 1200 K and 300 K. What is its maximum possible efficiency?
- 90%
- 25%
- 50%
- 75% (correct)
During welding, which of the following parameters has the most significant impact on the heat-affected zone (HAZ)?
During welding, which of the following parameters has the most significant impact on the heat-affected zone (HAZ)?
- Electrode diameter
- Arc voltage
- Welding speed (correct)
- Ambient temperature
Which of the following transmission system components is primarily responsible for allowing the engine to continue running when the vehicle is stopped?
Which of the following transmission system components is primarily responsible for allowing the engine to continue running when the vehicle is stopped?
- Gearbox
- Clutch (correct)
- Torque converter
- Differential
In a four-stroke internal combustion engine, which sequence of events occurs during the intake stroke?
In a four-stroke internal combustion engine, which sequence of events occurs during the intake stroke?
A mechanic is using a steel rule to measure the length of a component. What is the most important factor to consider for accurate measurement?
A mechanic is using a steel rule to measure the length of a component. What is the most important factor to consider for accurate measurement?
Which type of welding is most suitable for joining thick metal plates that require high strength and deep penetration?
Which type of welding is most suitable for joining thick metal plates that require high strength and deep penetration?
In basic fitting, what is the primary purpose of using a try square?
In basic fitting, what is the primary purpose of using a try square?
Which hand tool is best suited for cutting thin sheets of metal in a curved or irregular pattern?
Which hand tool is best suited for cutting thin sheets of metal in a curved or irregular pattern?
A vernier caliper is used to measure the outside diameter of a pipe. The main scale reading is 25 mm, and the vernier coincidence is at the 7th division. If the least count of the caliper is 0.02 mm, what is the outside diameter of the pipe?
A vernier caliper is used to measure the outside diameter of a pipe. The main scale reading is 25 mm, and the vernier coincidence is at the 7th division. If the least count of the caliper is 0.02 mm, what is the outside diameter of the pipe?
Why is it important to maintain proper lubrication in an internal combustion engine?
Why is it important to maintain proper lubrication in an internal combustion engine?
Flashcards
IC Engine
IC Engine
An internal combustion engine (IC engine) is a heat engine where the combustion of a fuel occurs with an oxidizer (usually air) in a combustion chamber that is an integral part of the working fluid flow circuit.
Transmission System
Transmission System
A system that transmits power from the engine to the wheels in a vehicle.
Welding
Welding
A process of joining materials (usually metals) by causing fusion, which is distinct from lower temperature metal-joining techniques such as brazing and soldering.
Measuring Instruments
Measuring Instruments
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Basic Fitting
Basic Fitting
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Hand Tools
Hand Tools
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Chisel
Chisel
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Pliers
Pliers
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Steel Rule
Steel Rule
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Study Notes
- Study notes for heat engines, internal combustion engines, transmission systems, basic fitting, hand tools, welding, and measuring instruments.
IC Engine (20 Marks)
- Focus on key concepts and problem-solving related to internal combustion engines.
Transmission System (5 Marks)
- Study fundamental principles and applications of various transmission systems.
Basic Fitting
- Understand basic fitting techniques and practices.
Hand Tools
- Familiarize yourself with hand tools like chisels, pliers, steel rules, and their uses.
Welding
- Grasp different welding processes, techniques, and applications.
Measuring Instruments
- Learn about various measuring instruments and their applications.
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