- 770°C
- 910°C
- 1050°C
- Below recrystallization temperature
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The temperature at which a gas, when subjected to Joule-Thomson expansion, neither cools or heats up, is termed as the __________ temperature. Above this temperature the gas heats up on throttling and below this the gas cools down.?
Answer: Option 3 Let'
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The C.O.P. of an absorption type refrigerator is given by (where T₁ = Temperature at which the working substance receives heat, T₂ = Temperature of cooling water, and T₃ = Evaporator temperature)?
Answer: Option 2 The C.O.P. of an absorption type refrigerator is given by [T₃ (T₁ - T₂)]/ [T₁ (T₂ - T₃)] (where T₁ = Temperature at which the working substance...
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Microphone is a device which transforms the?
Answer: Option 1 Microphone is a device which transforms the sound signal into current signal.
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The transition temperature at which all the ferromagnetic materials become paramagnetic materials is termed as the 'Curie temperature'. Its value for cobalt is __________ °C.?
Answer: Option 2 Let'
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The temperature at which ferromagnetic material can no longer be magnetised by the outside forces, is termed as the?
Answer: Option 2 Let'
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Critical solution temperature (or the con-solute temperature) for partially miscible liquids (e.g., phenol-water) is the minimum temperature at which?
Answer: Option 1 Critical solution temperature is that temperature at which the complete miscibility or a homogeneous mixture is formed. Sometimes the temperature has to be raised from the existing...
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In OSI model, which of the following layer transforms information from machine format into that understandable by user?
Answer: Option 2 Let'
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Which is the subset that transforms web content into secure modules that can be safely hosted on a web page?
Answer: Option 4 Caja is Google’s open-source secure subset. Caja (Spanish for “box”) defines two language subsets. Cajita (“little box”) is a narrow subset like that used by ADsafe and...
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Which of the following are true with regard to temperature control of the atmosphere of a given place I. The major temperature contrasts on earth's surface are between land masses and oceans II. During night, the water surface cools more rapidly than the land surface III. Temperature generally decreases with latitude on either side of the equator IV. Temperature rises to a maximum during summer and falls to a minimum during winter?
Answer: Option 1 The following are true with regard to temperature control of the atmosphere of a given place are The major temperature contrasts on earth's surface are between land...
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