Description : What is the basic technique used to stabilize a satellite? A. Gravity-forward motion balance B. Spin C. Thruster control D. Solar panel orientation 62. The jet thrusters are usually
Last Answer : B. Spin
Description : Satellite engine uses A. jet propulsion B. ion propulsion system C. liquid fuel D. solar jet
Last Answer : B. ion propulsion system
Description : Satellite engine use A. liquid fuel B. jet propulsion C. ion propulsion system D. solar jet
Last Answer : C. ion propulsion system
Description : What good would a fighter jet escort for this commercial airliner do?
Last Answer : Publicity, putting the fear of God into anyone else who might behave the same way in the future, and an excuse to slap the idiots with the biggest fine they can possibly imagine.
Description : Can a commercial jet fly into space?
Last Answer : No, commercial jets are not built to travel through our atmosphere and into space. It would either freeze up or burn into cinders.
Description : What is the name of the lady in the brand power commercial for swiffer wet jet?
Last Answer : Need answer
Description : You are flying between Chicago and San Francisco on a commercial jet. The pilot comes on the public address system and announces that the plane's cruising altitude is 40,000 feet. At this altitude are you in the: w) troposphere x) stratosphere y) ozonosphere z) chemosphere
Last Answer : ANSWER: X -- STRATOSPHERE
Description : What foods or vitamins are protect the body against radiation exposure?
Last Answer : Calcium. I’ve heard that radiation causes bone loss.
Description : What are The best way to protect against the effects of exposure to radiation?
Last Answer : Radiation
Description : Biological shield is provided in a nuclear power reactor to protect the __________ from radiation damage. (A) Fuel elements (B) Operating personnels (C) Walls of the reactor (D) None of these
Last Answer : (B) Operating personnels
Description : Thermal shield is used in high powered nuclear reactors to (A) Protect the walls of the reactor from radiation damage B) Absorb the fast neutrons (C) Slow down the secondary neutrons (D) Protect the fuel element from coming in contact with the coolant
Last Answer : (A) Protect the walls of the reactor from radiation damage
Description : Thermal shield used in high powered nuclear reactor to protect the walls of the reactor from radiation damage is made of (A) Concrete (B) Steel (C) Zircaloy (D) Graphite
Last Answer : (B) Steel
Description : How to Protect Solar Panels from Birds?
Last Answer : you cant set up bird mesh, install roof spikes, invest plastic predator, keep your yard/ garden clean, and of course maintain your home solar panel
Description : How do you protect your solar panels from damage from pigeons?
Last Answer : You can try sticking about 6 inches long spikes in between the solar cells. Spikes are thin so it will not block radiation. And it will be long enough to avoid pigeons from resting on solar panel.
Description : Intellectual Property Rights (IPR) protect the use of of information and idea that are of a)Ethical value b)Social value c)Moral value d) commercial value
Last Answer : d) commercial value
Description : Which affects global climate more, human activity or solar radiation?
Last Answer : answer:Solar radiation in that we would not have a climate without it. But solar radiation has been constant for billions of years. Human activity is altering the climate from the baseline created by solar radiation.
Description : Of the total incident solar radiation the proportion of PAR is:
Last Answer : Of the total incident solar radiation the proportion of PAR is: A. More than `80%` B. About `70%` C. About `60%` D. Less than `50%`
Description : Why is it important that some solar radiation hitting earth returns to space?
Description : What location on Earth receives roughly the same amount of solar radiation year-round?
Last Answer : Feel Free to Answer
Description : Why does the solar eclipse produce radiation?
Last Answer : What is the answer ?
Description : Some areas of the Earth receive more solar radiation than others. Which of the following results from the Sun's uneven heating of the Earth?
Last Answer : climate
Description : Total incoming solar radiation is measured by
Last Answer : Ans. Pyranometer
Description : What is the wavelength of visible solar radiation?
Last Answer : Ans. 0.39-0.7 nm
Description : An average % of solar radiation reaching to the earth
Last Answer : Ans. 50
Description : Which of the following crop geometry ensures uniform solar radiation availability to crop?
Last Answer : Ans.Square
Description : The tail of a comet always points away from the sun due to (a) force of repulsion (b) centrifugal force (c) solar radiation and solar wind (d) an unknown reason
Last Answer : Ans:(c)
Description : The increasing amount of CO2 in the atmosphere is slowly raising its temperature because it absorbs (a) the infrared part of the solar radiation (b) the ultraviolet part of the solar radiation (c) all the solar radiations (d) the water vapour of the air
Last Answer : Ans:(a)
Description : Solar energy is received by the earth through – (1) conduction (2) radiation (3) convection (4) refraction
Last Answer : (2) radiation Explanation: In physics, radiation is a process in which energetic particles or energetic, waves travel through vacuum, or through mattercontaining media that are not required for ... Earth receives 174 petawatts (PW) of incoming solar radiation (insolation) at the upper atmosphere.
Description : The solar radiation coming to Earth is called – (1) Radiant energy (2) Insolation (3) Sunshine (4) Terrestrial radiation
Last Answer : (2) Insolation Explanation: Insolation is the solar radiation that reaches the earth's surface. It is measured by the amount of solar energy received per square centimetre per minute. Insolation affects ... the rays of sunlight, the insolation is reduced in proportion to the cosine of the angle.
Description : In which of the following layer of atmosphere the absorption and scattering of the solar ultraviolet radiation takes place? (1) Troposphere (2) Stratosphere (3) Mesosphere (4) Thermosphere
Last Answer : (2) Stratosphere Explanation: Solar ultraviolet radiation undergoes absorption and scattering as it passes through the stratospheric layer of the earth's atmosphere. The ozone layer, a region of Earth's ... result, no UV radiation at wavelengths shorter than 290 nm reaches the surface of the earth.
Description : Green House Effect' means (1) Pollution in houses in tropical region (2) Prevention of ultraviolet radiation by the ozone layer (3) Trapping of solar energy due to atmospheric gases (4) Damage to green painted buildings
Last Answer : (3) Trapping of solar energy due to atmospheric gases Explanation: The greenhouse effect occurs when Earth's atmosphere traps solar radiation because of the presence of certain gases, causing the ... , nitrous oxide (N2O) and other gases, ac-cording to the Environmental Protection Agency (EPA
Description : Ozone layer in the upper parts of the atmosphere serves as a protective shield against harmful (1) solar ultraviolet radiation (2) solar infrared radiation (3) CO2 in the air (4) SO2 in the air
Last Answer : (1) solar ultraviolet radiation Explanation: Ozone layer serves as a protective shield against harmful solar ultraviolet radiation.
Description : Knot is a measure of – (1) The speed of ship (2) The curvature of spherical objects (3) Solar radiation (4) Intensity of earthquake shock
Last Answer : (1) The speed of ship Explanation: The knot (pronounced not) is a unit of speed equal to one nautical mile (1.852 km) per hour, approximately 1.151 mph. There is no standard abbreviation but km is commonly used. The knot is a non-SI unit accepted for use with the International System of Units (SI).
Description : The word 'insulation' means – (1) matters which insulate (2) incoming solar radiation (3) insoluble matters (4) None of the above
Last Answer : (2) incoming solar radiation Explanation: Insolation is the solar radiation that reaches the earth's surface. It is measured by the amount of solar energy received per square centimeter per minute. Insolation affects temperature. The more the insolation, the higher is the temperature.
Description : Knot is a measure of – (1) Unit of speed (2) the curvature of spherical objects (3) solar radiation (4) intensiry of earthquake shock
Last Answer : (1) Unit of speed Explanation: The Knot is a unit of speed equal to one nautical mile per hour. The ISO standerd symbol for the knot is Kn.
Description : Pycnometer is an instrument used to measure the – (1) Density (2) Intensity of solar radiation (3) Intensity of earthquake (4) High temperatures
Last Answer : (1) Density Explanation: A gas pycnometer is a laboratory device used for measuring the density - or more accurately the volume - of solids, be they regularly shaped, porous or non-porous, ... , employing some method of has displacement and the volume-pressure relationship known as Boyle's Law.
Description : The device which is used to store the heat generated by radiation of solar energy is called
Last Answer : solar collector.
Description : Of the total incident solar radiation the proportion of PAR is (a) about 70% (b) about 60% (c) less than 50% (d) more than 80%.
Last Answer : (c) less than 50%
Description : The concept of chemical evolution is based on (a) interaction of water, air and clay under intense heat (b) effect of solar radiation on chemicals (c) possible origin of life by combination of chemicals under suitable environmental conditions (d) crystallisation of chemicals.
Last Answer : (c) possible origin of life by combination of chemicals under suitable environmental conditions
Description : Hygrometer is used to measure a. Pressure b. Humidity c. Wind speed d. Solar radiation
Last Answer : Humidity
Description : What is the essential growth of and quantities development of fruits? a. Humidity b. Wind c. Solar Radiation d. Temperature e. Water
Last Answer : d. Temperature
Description : Higher concentration of CO2 in atmosphere (A) Allows visible solar radiation (ultraviolet) of short wave-length to pass through (B) Reflects and absorbs the longer wavelength (infra-red) radiations (C) Prevents solar heat being ... in 'heat trap' i.e., global warming (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Pick out the wrong statement. (A) Biological oxygen demand (B.O.D.) value of a sewerage sample is always lower than its chemical oxygen demand (C.O.D.) value (B) Environmental pollution by ... in but does not allow the short wavelength infra red radiation to escape out of the earth's atmosphere
Last Answer : (D) The characteristic of a green house body is that it allows the long wavelength incoming solar radiation to come in but does not allow the short wavelength infra red radiation to escape out of the earth's atmosphere
Description : Pick out the wrong statement pertaining to 'green house' for the plants. (A) 'Green house' (made of glass) allows visible sunlight (i.e., short wavelength solar radiation like ultra-violet rays) ... ' thereby warming up the earth's surface (D) 'Green house' is colder than the outside atmosphere
Last Answer : (D) 'Green house' is colder than the outside atmosphere
Description : A 'body' which allows the short wavelength incoming solar radiation to enter in, but does not allow long wave length outgoing infra red radiation to escape out is called the (A) Global warming (B) Green house (C) Atmospheric effect (D) Ionosphere
Last Answer : (B) Green house
Description : Direct solar radiation is measured with — instrument.(Agriculture MCQ) a. Pyranometer b. Pyrheliometer c. Photometer d. Altimeter
Last Answer : b. Pyrheliometer
Description : Infrared thermometer is used to measure — a. Atmospheric temperature b. Solar radiation c. Crop canopy temperature d. Soil temperature
Last Answer : c. Crop canopy temperature
Description : A thin, flat & square plate measuring 2 m 2 m is freely hanging in ambient air at 25°C. It is exposed to the solar radiation falling on one side of the plate at the rate of 500 W/m2. The plate temperature will ... heat transfer co-efficient is __________ W/m2 °C. (A) 50 (B) 100 (C) 150 (D) 200
Last Answer : (B) 100
Description : Which one of the following statements is correct? (A) During the day, earth reflects solar radiation (B) During the day, earth reflects both solar radiations the emission from its surface (C) During the night, earth emits radiation from its surface (D) All of these
Last Answer : Answer: Option D