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Match List 1 with List 2 and select the correct answer from the codes given below: List-1 List-2 A. ….is a device to measure intensity of radiation emitted from a body  1. Transducer B. …. Is an instrument which measures humidity directly  2. Reluctance C. A …. Is a device which converts the energy from one form to another  3. Hygrometer D. Transducer which makes use of air gap change is referred as….type 4. Radiation pyrometer

Match List 1 with List 2 and select the correct answer from the codes given below: List-1 List-2 A. ….is a device to measure intensity of radiation emitted from a body  1. Transducer B. …. Is an instrument which measures humidity directly  2. Reluctance C. A …. Is a device which converts the energy from one form to another  3. Hygrometer D. Transducer which makes use of air gap change is referred as….type 4. Radiation pyrometer Correct Answer A - 4, B - 3, C - 1, B - 2

Transducer:​

  • Active transducers are those which do not require any power source for their operation.
  • They work on the energy conversion principle.
  • They produce an electrical signal proportional to the input (physical quantity).
  • Piezoelectric, thermocouple, and photovoltaic cell transducers all are active transducers.

 

Hygrometer:

  • A hygrometer is an instrument used to measure relative humidity.
  • Humidity is the measure of the amount of moisture in the air.
  • A psychrometer is an example of a hygrometer.
    ​

Radiation pyrometer:

  • The main theory behind a radiation pyrometer is that the temperature is measured through the naturally emitted heat radiation by the body. This heat is known to be a function of its temperature.
  • The radiation pyrometer has an optical system including a lens, a mirror, and an adjustable eyepiece.
  • The heat energy emitted from the hot body is passed on to the optical lens, which collects it and is focused on the detector with the help of the mirror and eyepiece arrangement.
  • Thus, the heat energy is converted to its corresponding electrical signal by the detector and is sent to the output temperature display device.
  • The temperature of the sun is measured by using a radiation pyrometer.


A transducer that makes use of air gap change is referred to as Reluctance type

Related Questions

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being traded in China and Tibet. At that time, I was not a Buddhist; I wrote to the Dalai Lama asking him to say that this is harmful and he wrote back to say, “We
will stop this.” He used very strong words during the Kalachakra in 2006, when he said, If he sees people wearing fur and skins, he doesnt feel like living. This sent
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A passage is given with five questions following it. Read the passage carefully and select the best answer to each question out of the given fouralternatives. Teaching about compassion and empathy in schools can help deal with problems of climate change and environmental degradation,” says Barbara Maas, secretary,
Standing Committee for Environment and Conservation, International Buddhist Confederation (IBC). She was in New Delhi to participate in the IBCs governing
council meeting, December 10-11, 2017. “We started an awareness campaign in the year 2005-2006 with H H The Dalai Lama when we learnt that tiger skins were
being traded in China and Tibet. At that time, I was not a Buddhist; I wrote to the Dalai Lama asking him to say that this is harmful and he wrote back to say, “We
will stop this.” He used very strong words during the Kalachakra in 2006, when he said, If he sees people wearing fur and skins, he doesnt feel like living. This sent
huge shock waves in the Himalayan community. Within six months, in Lhasa, people ripped the fur trim of their tubba, the traditional Tibetan dress. The messenger was ideal and the audience was receptive,” says Maas who is a conservationist. She has studied the battered foxs behavioral ecology in Serengeti,Africa. She heads the endangered species conservation at the Nature and Biodiversity Conservation Union (NABU) International Foundation for Nature, Berlin. “I metSamdhong Rinpoche, The Karmapa, HH the Dalai Lama and Geshe Lhakdor and I thought, if by being a Buddhist, you become like this, I am going for it, “says Maas, who led the IBC initiative for including the Buddhist perspective to the global discourse on climate change by presenting the statement, The Time to Act is Now: aBuddhist Declaration on Climate Change, at COP21 in Paris. “It was for the first time in the history of Buddhism that leaders of different sanghas came together to take a stand on anything! The statement lists a couple ofimportant things: the first is that we amass things that we dont need; there is overpopulation; we need to live with contentment and deal with each other and theenvironment with love and compassion,” elaborates Maas. She is an ardent advocate of a vegan diet because “consuming meat and milk globally contributes more toclimate change than all "transport in the world.” Turning vegetarian or vegan usually requires complete change of perspective before one gives up eating their favorite food. What are the Buddhist ways to bringabout this kind of change at the individual level? “To change our behavior, Buddhism is an ideal vehicle; it made me a more contented person,” says Maas, who grewup in Germany, as a sausage chomping, meat-loving individual. She says, “If I can change, so can anybody”. According to the passage, what do you infer from ''The messenger was ideal and the audience was receptive''?
Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.
Modern civilization is completely dependent on energy, which has therefore to be abundant and also economical. About 85% of the world's energy is supplied by oil, coal and natural gas while nuclear, hydro, wind and solar power and biomass supply the rest. Coal, nuclear and hydro are used primarily to generate electricity while natural gas is widely used for heating. Biomass is used both for heating and cooking. The wind and solar power is the future's hope as they are sustainable energy sources. Oil powers almost all machines that move and that makes oil uniquely versatile. Oil powered airplanes carry 500 people across the widest oceans at nearly the speed of sound. Oil powered machines produce and transport food. Oil powered machines are ubiquitous. Clearly, we live in the age of oil but it is drawing to a close. According to data available if oil production remains constant until it's gone, there is enough to last 42 years. Oil wells will produce less as they become depleted, which will make it impossible to keep production constant. Similarly natural gas and coal will last another 61 years and 133 years respectively. Naturally, as they become scarce, they become expensive, leading to a worldwide energy crisis. If we are to survive on this planet, we have to make a transition to sustainable energy sources. The transition may be willy-nilly or planned - the choice is ours. The dawning era of limited and expensive energy will be very difficult for everyone on earth but will be even more difficult if it is not anticipated. It is of utmost importance that the public and policymakers understand the global energy crisis and act in tandem to ensure that the species 'homo sapiens' does not become extinct. Biomass is an energy source used in