The correct answer is [A] Space travel, surgery, and magnetic resonance. Cryogenics, the study of extremely low temperatures, finds diverse applications. In space travel, cryogenic fuels like liquid hydrogen and oxygen power rockets efficiently. Surgery benefits from cryogenic techniques, such as crRead more
The correct answer is [A] Space travel, surgery, and magnetic resonance. Cryogenics, the study of extremely low temperatures, finds diverse applications. In space travel, cryogenic fuels like liquid hydrogen and oxygen power rockets efficiently. Surgery benefits from cryogenic techniques, such as cryotherapy, where low temperatures are used to freeze and remove abnormal tissues. Magnetic resonance imaging (MRI) relies on superconducting magnets cooled by cryogens to generate the strong magnetic fields necessary for imaging the body’s internal structures with high resolution. These magnets must be kept at extremely low temperatures to maintain superconductivity. Thus, cryogenics plays a crucial role in enabling space exploration, improving medical treatments, and advancing imaging technologies. The other options [B] Surgery, Magnetic Propulsion and Telemetry, [C] In space travel, surgery, and telemetry, and [D] In space travel, magnetic attraction, and telemetry, do not accurately reflect the primary applications of cryogenics.
The correct answer is [D] – 196 °C. Cryogenic testing is conducted at extremely low temperatures, typically around -196 °C. These temperatures are necessary for evaluating the performance and behavior of materials and components under extreme cold conditions. Cryogenic testing is essential for varioRead more
The correct answer is [D] – 196 °C. Cryogenic testing is conducted at extremely low temperatures, typically around -196 °C. These temperatures are necessary for evaluating the performance and behavior of materials and components under extreme cold conditions. Cryogenic testing is essential for various applications, including aerospace, superconductivity research, and medical technology, where materials must withstand and function reliably in ultra-low temperature environments. By subjecting materials to cryogenic temperatures, engineers and researchers can assess their thermal properties, structural integrity, and suitability for use in cryogenic systems. This testing ensures that materials and components can operate safely and effectively in the demanding conditions of space exploration, particle accelerators, and other cryogenic environments, contributing to advancements in science, technology, and engineering.
The correct answer is [C] In rocket technology. Cryogenic engines are utilized in rocket propulsion systems. These engines employ extremely low temperatures, typically below -150°C, to store and handle propellants like liquid hydrogen or liquid oxygen. The cryogenic temperatures allow for higher fueRead more
The correct answer is [C] In rocket technology. Cryogenic engines are utilized in rocket propulsion systems. These engines employ extremely low temperatures, typically below -150°C, to store and handle propellants like liquid hydrogen or liquid oxygen. The cryogenic temperatures allow for higher fuel densities and efficiencies, resulting in greater thrust and payload capacity for rockets. This technology is crucial for launching spacecraft into orbit and beyond, as it provides the necessary propulsion power for space exploration missions. While cryogenic temperatures are also utilized in research on superconductivity, submarine propulsion typically relies on nuclear or conventional engines, and frost-free refrigerators utilize different cooling mechanisms. Therefore, cryogenic engines find their primary application in rocket technology, facilitating space exploration and enabling advancements in satellite deployment, interplanetary travel, and scientific research in space.
The correct answer is [A] The specific heat of water is high. Water's high specific heat allows it to absorb a significant amount of heat from the engine, effectively cooling it. This property makes water an efficient coolant for radiators in motor vehicles, helping to maintain engine temperatures wRead more
The correct answer is [A] The specific heat of water is high. Water’s high specific heat allows it to absorb a significant amount of heat from the engine, effectively cooling it. This property makes water an efficient coolant for radiators in motor vehicles, helping to maintain engine temperatures within safe operating limits. Additionally, water is readily available and cost-effective, contributing to its widespread use as a coolant. While its density and availability at low temperatures may also play a role in its utility as a coolant, it is primarily the high specific heat capacity of water that makes it an ideal choice for cooling engines, ensuring optimal performance and preventing overheating.
The correct answer is [C] The specific heat capacity of water is very high. Water has a high specific heat capacity, approximately 4.18 J/g°C, compared to most other substances. This means it can absorb and store a large amount of heat energy without experiencing a significant increase in temperaturRead more
The correct answer is [C] The specific heat capacity of water is very high. Water has a high specific heat capacity, approximately 4.18 J/g°C, compared to most other substances. This means it can absorb and store a large amount of heat energy without experiencing a significant increase in temperature. Sea water’s high specific heat capacity results in a slower rate of temperature change compared to land during the day. Land has a lower specific heat capacity, so it heats up faster in response to solar radiation. Conversely, sea water retains more heat energy, moderating its temperature changes. This difference in specific heat capacities between land and sea is a key factor in creating regional climate variations, influencing weather patterns, and regulating Earth’s overall temperature distribution.
Application of low temperatures (Cryogenics) is in
The correct answer is [A] Space travel, surgery, and magnetic resonance. Cryogenics, the study of extremely low temperatures, finds diverse applications. In space travel, cryogenic fuels like liquid hydrogen and oxygen power rockets efficiently. Surgery benefits from cryogenic techniques, such as crRead more
The correct answer is [A] Space travel, surgery, and magnetic resonance. Cryogenics, the study of extremely low temperatures, finds diverse applications. In space travel, cryogenic fuels like liquid hydrogen and oxygen power rockets efficiently. Surgery benefits from cryogenic techniques, such as cryotherapy, where low temperatures are used to freeze and remove abnormal tissues. Magnetic resonance imaging (MRI) relies on superconducting magnets cooled by cryogens to generate the strong magnetic fields necessary for imaging the body’s internal structures with high resolution. These magnets must be kept at extremely low temperatures to maintain superconductivity. Thus, cryogenics plays a crucial role in enabling space exploration, improving medical treatments, and advancing imaging technologies. The other options [B] Surgery, Magnetic Propulsion and Telemetry, [C] In space travel, surgery, and telemetry, and [D] In space travel, magnetic attraction, and telemetry, do not accurately reflect the primary applications of cryogenics.
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The correct answer is [D] – 196 °C. Cryogenic testing is conducted at extremely low temperatures, typically around -196 °C. These temperatures are necessary for evaluating the performance and behavior of materials and components under extreme cold conditions. Cryogenic testing is essential for varioRead more
The correct answer is [D] – 196 °C. Cryogenic testing is conducted at extremely low temperatures, typically around -196 °C. These temperatures are necessary for evaluating the performance and behavior of materials and components under extreme cold conditions. Cryogenic testing is essential for various applications, including aerospace, superconductivity research, and medical technology, where materials must withstand and function reliably in ultra-low temperature environments. By subjecting materials to cryogenic temperatures, engineers and researchers can assess their thermal properties, structural integrity, and suitability for use in cryogenic systems. This testing ensures that materials and components can operate safely and effectively in the demanding conditions of space exploration, particle accelerators, and other cryogenic environments, contributing to advancements in science, technology, and engineering.
See lessCryogenic engines are used
The correct answer is [C] In rocket technology. Cryogenic engines are utilized in rocket propulsion systems. These engines employ extremely low temperatures, typically below -150°C, to store and handle propellants like liquid hydrogen or liquid oxygen. The cryogenic temperatures allow for higher fueRead more
The correct answer is [C] In rocket technology. Cryogenic engines are utilized in rocket propulsion systems. These engines employ extremely low temperatures, typically below -150°C, to store and handle propellants like liquid hydrogen or liquid oxygen. The cryogenic temperatures allow for higher fuel densities and efficiencies, resulting in greater thrust and payload capacity for rockets. This technology is crucial for launching spacecraft into orbit and beyond, as it provides the necessary propulsion power for space exploration missions. While cryogenic temperatures are also utilized in research on superconductivity, submarine propulsion typically relies on nuclear or conventional engines, and frost-free refrigerators utilize different cooling mechanisms. Therefore, cryogenic engines find their primary application in rocket technology, facilitating space exploration and enabling advancements in satellite deployment, interplanetary travel, and scientific research in space.
See lessWater is used to cool the radiator of a motor vehicle because
The correct answer is [A] The specific heat of water is high. Water's high specific heat allows it to absorb a significant amount of heat from the engine, effectively cooling it. This property makes water an efficient coolant for radiators in motor vehicles, helping to maintain engine temperatures wRead more
The correct answer is [A] The specific heat of water is high. Water’s high specific heat allows it to absorb a significant amount of heat from the engine, effectively cooling it. This property makes water an efficient coolant for radiators in motor vehicles, helping to maintain engine temperatures within safe operating limits. Additionally, water is readily available and cost-effective, contributing to its widespread use as a coolant. While its density and availability at low temperatures may also play a role in its utility as a coolant, it is primarily the high specific heat capacity of water that makes it an ideal choice for cooling engines, ensuring optimal performance and preventing overheating.
See lessDuring the day, the earth gets heated much faster than the sea water, because
The correct answer is [C] The specific heat capacity of water is very high. Water has a high specific heat capacity, approximately 4.18 J/g°C, compared to most other substances. This means it can absorb and store a large amount of heat energy without experiencing a significant increase in temperaturRead more
The correct answer is [C] The specific heat capacity of water is very high. Water has a high specific heat capacity, approximately 4.18 J/g°C, compared to most other substances. This means it can absorb and store a large amount of heat energy without experiencing a significant increase in temperature. Sea water’s high specific heat capacity results in a slower rate of temperature change compared to land during the day. Land has a lower specific heat capacity, so it heats up faster in response to solar radiation. Conversely, sea water retains more heat energy, moderating its temperature changes. This difference in specific heat capacities between land and sea is a key factor in creating regional climate variations, influencing weather patterns, and regulating Earth’s overall temperature distribution.
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