dataset update

astro-mcqa.csv

@@ -185,3 +185,22 @@ final_mass = payload_mass + structure_mass = 5,000 + 10,000  + 100,000/2 = 65,00
 
  ΔV = g0 * Isp * ln(115,000 / 65,000) = 2519 m/s",True,3cd7b8d6-030b-491f-a92a-85afac24d921
 "What Delta V can be achieve by the second stage of a rocket, after first stage has been jettisoned and under the following assumptions?","['6910 m/s', '7910 m/s', '8910 m/s', '9910 m/s']","[0, 1, 0, 0]",,True,493d3084-22a2-475c-8227-aeba4bae1c27
+What does ECLSS refer to in astronautics?,"['Engineering Calibration and Logistics Support Services', 'Extra-terrestrial Colonization and Landing Systems', 'Electrical Circuitry and Load Support Systems', 'Environmental Control and Life Support System']","[0, 0, 0, 1]",,True,e9c6d3d7-c413-49b8-9877-4f95294d4b70
+"Which of the following environmental control requirements are in general specific to human spaceflight, hence not applicable to unmanned satellite missions?","['Atmospheric Pressure Control', 'Temperature Control', 'Waste Disposal', 'Water and Food']","[1, 0, 1, 1]",,True,326efd57-822c-45e9-a16e-707e7389f102
+Which of the following is true about ECLSS Closed Loop System in comparison to Open-Loop ECLSS?,"['They are reliable because there are a few moving parts', 'Resource scale linearly with flight duration', 'They require less resupply', 'They are more complex and more expensive', 'Recycling equipment can increase the launch mass']","[0, 0, 1, 1, 1]",,True,e1058454-feef-4ace-9213-a4ebdffc01ca
+What is the primary driver to choose between a closed-loop or an open-loop ECLSS?,"['Spacecraft Size', 'Crew Size', 'Mission Duration', 'Launcher reliability']","[0, 0, 1, 0]","Due to the additional mass from recycling equipement, open-loop ECLSS are more interesting for short-term missions. There is a crossover point in the mission duration after which the initial investment of bringing with you recycling equipment becomes more interesting (in terms of total mass) due to the recycled matter.",True,c90f0fdc-9909-403e-892b-5e0e24bfcd1c
+Which of the following recycling is represent the more mass savings using a closed loop ECLSS?,"['Food production from wastes', 'Oxygen recovery from CO2', 'Water recycling', 'Leaks prevention']","[0, 0, 1, 0]",Recycling water is by far the most important source of mass saving,True,74a14b36-92c8-4971-b30e-7beaf23cb073
+Which of the following are the most import source of water consumption on-board ISS missions?,"['Drinking water', 'Food preparation water', 'Clothes wash water']","[1, 0, 0]",Clothes are not washed onboard the ISS otherwise it would consume too much water. Food preparation water is usually half of drinking water requirements.,True,ae4ace16-3c61-48db-8670-78a4d51ee9da
+"Assuming there are 3 sources of independent errors on the knowledge of the volume of a given reservoir. These independent errors are 0.1 L, 0.2 L and 0.5 L. Which is the combined errors of these 3 sources of errors?","['0.30 L', '0.50 L', '0.55 L', '0.80 L']","[0, 0, 1, 0]",If the errors are independent the combined error is given by the square root of the sum of individual error squared. sqrt(0.1ˆ2 + 0.2ˆ2 + 0.5ˆ2) = 0.547. L,True,b3098ceb-1287-4387-a56b-399b5a34ca53
+"What is the formula used to combined errors (e1, e2, e3) which are depend from each other? Assume that all errors are given in absolute values.","['error = e1 + e2 + e3', 'error = e1ˆ2 + e2ˆ2 + e3ˆ2', 'error = max(e1, e2, e3)', 'error = sqrt(e1 + e2 + e3)', 'error = sqrt(e1ˆ2 + e2ˆ2 + e3ˆ2)']","[1, 0, 0, 0, 0]",,True,09f6c3fa-76f5-4d6b-97f0-aab965ae525b
+How do you usually compute a risk score in aerospace risk management?,"['Division of severity by probability of occurrence', 'Summation of individual risk severity', 'Average probability of occurrence of all risks', 'Multiplication of probability of occurrence by risk']","[0, 0, 0, 1]",,True,b9ccd97e-47bc-4acd-979b-85027aefc4ec
+What is usually true when talking about spacecraft active redundancy systems?,"['Often used in non-critical application', 'Often used in critical application', 'Suitable for digital systems but not for mechanical systems', 'Requires manual switching to backup components upon failure', 'No action is needed to ensure the service continuity after the failure']","[0, 1, 0, 0, 1]",,True,223e2e5e-34c6-4d14-9158-2122edc90d01
+What are trade trees in astronautics?,"['A catalog of spacecraft components traded on international markets', 'A new class algorithms for optimizing fuel consumption during space missions', 'Mathematical models for predicting the trajectory of celestial bodies', 'A hierarchical decomposition of decisions to make the most important decisions first']","[0, 0, 0, 1]",,True,5b7a8008-b65d-44c0-99c8-7acb5ac6a59d
+Which of the following best describe push broom scanning technique for electro-optical instruments?,"['Scanning a single detector element on the ground in the cross-track direction', 'Scanning covering a full swath width using a linear arrangement of detector elements', 'Scanning using a 2-dimensional array of detector element']","[0, 1, 0]",,True,4cea1cab-95b0-430e-91c3-13a4a67ba123
+True of false: Active RF systems can be used in satellite observation payload to observe emission of the highest energy photons from astrophysical objects (including Sun and supernovae)?,"['True', 'False']","[0, 1]","False because, the capability to observe emission of the highest energy photons from astrophysical objects (including Sun and supernovae) is usually provided by gamma ray payloads while active RF system like radars and synthetic aperture radars (SARs) are used for RF imagery of precipitation in clouds, surface wakes on the ocean and detailed topography of Earth and other planetary solid surfaces.",True,81c196de-f705-44da-875d-10df8dc84c1b
+Which of the following was the first known SAR in space?,"['CALIPSO', 'ICESAT', 'SEASAT', 'TRMM']","[0, 0, 1, 0]",SEASAT launched in 1978 is the first known SAR in space and operated in L-band .,True,a7800b29-9996-40ff-9b1f-f6a35588d522
+Which of the following aberrations can be fully corrected by Doublet/Schmidt optical systems?,"['Lateral Chromatic', 'Length Chromatic', 'Astigmatism', 'Curvature of Field', 'Spherical']","[1, 1, 0, 0, 1]",,True,1e3d4af8-4eaf-4730-8155-fb1a9cab4ecf
+Which of the following reflective optical system is analogous to the Tele-optic refractive optical system?,"['Lens Doublet', 'Schmidt', 'Cassegrain', 'TMA (Three-mirror anastigmatic)']","[0, 0, 1, 0]",,True,c68460d2-8cd8-4f88-a407-6cc47d3af00d
+Which of the following best describe a spherical aberration?,"[""when a sharp image is formed on a focal surface which isn't flat"", 'when light from the periphery of a spherical lens or mirror is focused nearer the element than light from the center', 'when an otherwise sharp image is distorted in shape, such as when straight light on the surface being viewed appear curved on the focal plane', 'dispersion of the light due to the refractive index of a lens being a function of the wavelength']","[0, 1, 0, 0]",,True,881245b2-6dfa-4b39-93fa-454b10919ef7
+"Assuming you are calculating parameters for a passive optical sensor, what would be the sensor dynamic range DR (with respect to cold space) assuming that the number of photocarriers available Ne = 7.3e6 (evaluated for an ideal detector) and number of read-out noise electrons is Nr = 5000?","['DR = Neˆ2 / Nr = 1.07e10', 'DR = Ne / Nr = 1460', 'DR = sqrt(Ne) / Nr = 0.54']","[0, 1, 0]",,True,6a6dcec7-6109-4832-8981-f221e2f9e28e
+Which type of satellite sensor should you select for you AOCS if you need an accuracy of 0.1 deg and have string mass constraint?,"['Sun Sensor', 'Star Sensor', 'Magnetometer']","[1, 0, 0]",Sun sensors have a typical accuracy of 0.005 def to 3 deg with mass varying from 0.1 to 2 kg which is accurate but weight less than star sensors. Magnetometers are not accurate enough for this performance requirements,True,b5555ff7-242f-4fe4-8734-7148627758e7