How does a throttling device work? A throttling device is the generic name of any device or process that simply dissipates pressure energy by irreversibly converting it into thermal energy. … They merely convert pressure energy into thermal energy through dissipative viscous flow processes. Does a throttling valve increase pressure?…
How do thermos flasks keep drinks hot? There’s virtually no way heat can escape from a vacuum flask and a hot drink stored inside will stay steaming hot for several hours. … The sealed stopper stops heat getting in by convection; the vacuum stops conduction, and the metal lining between…
How does a Stirling engine work simple? The Stirling engine uses the temperature difference between its hot end and cold end to establish a cycle of a fixed mass of gas, heated and expanded, and cooled and compressed, thus converting thermal energy into mechanical energy. Why Stirling engines are not…
How does a star bus topology work? The star bus topology is an enactment of a spike-like hub distribution model in computer networks. … The information on the star bus topology flows via the hub before it reaches its destination node. Hence, the central hub manages the traffic flow between…
How is there conduction in a solar oven? Conduction – Conduction occurs when an object transfers heat to another object through direct contact. … In the solar oven, conduction occurs when the hot black construction paper comes into contact with the oven bag. Convection – In both the solar oven…
What are shaped charges used for? A shaped charge is an explosive charge shaped to focus the effect of the explosive’s energy. Different types of shaped charges are used for various purposes such as cutting and forming metal, initiating nuclear weapons, penetrating armor, or perforating wells in the oil and…
What does scintillation detector detect? Scintillation detectors are used for the determination of the high-energy part of the X-ray spectrum. In scintillation detectors the material of the detector is excited to luminescence (emission of visible or near-visible light photons) by the absorbed photons or particles. What type of radiation can…
How does a scintillation detector work? After absorbing a gamma ray, a scintillation crystal emits a pulse of light, usually in the visible spectrum. Various types of sensitive photo-detectors are closely coupled to the crystal so the tiny sparkles produced can be fed to the optical sensing part. What is…
Can schizophrenics draw a clock? Herrmann et al. (1999) found that patients with schizophrenia performed significantly more poorly on clock drawing (‘free-drawn’ and ‘pre-drawn’ clock, time setting at ’11:10′) and copy (time setting at ’11:10′) than healthy controls, even though they had similar scores on the MMSE. What does the…
Can people with schizophrenia draw a clock? Herrmann et al. (1999) found that patients with schizophrenia performed significantly more poorly on clock drawing (‘free-drawn’ and ‘pre-drawn’ clock, time setting at ’11:10′) and copy (time setting at ’11:10′) than healthy controls, even though they had similar scores on the MMSE. What…
What causes a reverse fault? Compressional stress, meaning rocks pushing into each other, creates a reverse fault. In this type of fault, the hanging wall and footwall are pushed together, and the hanging wall moves upward along the fault relative to the footwall. This is literally the ‘reverse’ of a…
How do reverse faults occur? Reverse faults are exactly the opposite of normal faults. If the hanging wall rises relative to the footwall, you have a reverse fault. Reverse faults occur in areas undergoing compression (squishing). … Since the beds indicate that the hanging wall has risen relative to the…
How could repeated playing of the game change the strategy each firm uses? In a repeated game, firms are more likely to charge a high price and receive high profits. … The dominant strategy for each firm is to set a low price. What is repeated game in oligopoly? The…
How a quadrupole mass spectrometer operates? A quadrupole mass analyzer consists of a set of four conducting rods arranged in parallel, with a space in the middle; the opposing pairs of rods are electrically connected to each other. … The field is generated when a radio frequency (RF) voltage is…
What is psychrometer and how does it work? A psychrometer is a device for measuring air humidity. It does so by measuring the temperature difference between a dry thermometer bulb and a wet thermometer bulb that has lost some moisture due to evaporation. A psychrometer tests both the dry and…
What is proximity sensor and how it works? Proximity Sensor includes all sensors that perform non-contact detection in comparison to sensors, such as limit switches, that detect objects by physically contacting them. Proximity Sensors convert information on the movement or presence of an object into an electrical signal. What is…
How does a protein kinase work? Protein kinases (PTKs) are enzymes that regulate the biological activity of proteins by phosphorylation of specific amino acids with ATP as the source of phosphate, thereby inducing a conformational change from an inactive to an active form of the protein. What are protein kinase…
How do you adjust a pressure reducing valve? Loosen the lock nut on the pressure reducing valve with a wrench and back it off by unscrewing it. Fit a socket wrench over the adjustment nut on the top of the valve. Turn the nut counterclockwise to reduce the pressure downstream…
How does pressure-control work? Pressure regulators reduce a supply (or inlet) pressure to a lower outlet pressure and work to maintain this outlet pressure despite fluctuations in the inlet pressure. The reduction of the inlet pressure to a lower outlet pressure is the key characteristic of pressure regulators. How does…
How do polytene chromosomes differ from other chromosomes? In which of the following ways do polytene chromosomes differ from other chromosomes? Polytene chromosomes are replicated but not separated. … In the formation of nucleosomes, one histone class, H1, is not directly involved, yet it does associate with DNA to form…
How do polymers decompose? Polymer biodegradation happens when a polymeric material is broken down by microorganisms (bacteria, fungi, algae) into natural elements such as water and carbon dioxide (Kawai, 1992). What are the causes of polymer degradation? In general, the effects of heat, light, air and water are the most…
How does a plant increase its biomass quizlet? How does a plant increase its biomass? A plant increases its biomass through the formation of new organic molecules. what is the function of the photosystem? The function is that it transforms light energy to chemical energy. How do plants gain biomass…
How do plants live on land? Plant adaptations to life on land include the development of many structures a water-repellent cuticle, stomata to regulate water evaporation, specialized cells to provide rigid support against gravity, specialized structures to collect sunlight, alternation of haploid and diploid generations, sexual organs, a … What…
How does a pile driver work science? When the ram strikes the anvil, the fuel is ignited, explodes, and forces the anvil down against the pile and the ram upward. The sequence repeats itself automatically, and the pile is driven into the ground by the ram impact and the explosion…
How do you use a piezometer? Deflections of the diaphragm are detected using a vibrating wire or a strain gauge and are converted to an equivalent pressure using a suitable calibration. The piezometer is inserted into a borehole and the annulus between the porous filter and the borehole is filled…