Is NTP and STP same? STP is the standard temperature and pressure and NTP is the normal temperature and pressure. As per IUPAC, the STP value of temperature and pressure for gas is 273.15 K and 0.987 atm respectively. The NTP value of temperature and pressure is 293.15 K and 1atm. What is the value […]
What are the four main parts of a solar photovoltaic cell?
What are the four main parts of a solar photovoltaic cell? Photovoltaic systems generally consist of six individual components: the solar PV array, a charge controller, a battery bank, an inverter, a utility meter, and an electric grid. The correct installation of all of these components determines how efficient the solar panels are./span> Why only […]
What is 2/4 shell-and-tube heat exchanger?
What is 2/4 shell-and-tube heat exchanger? Most shell-and-tube heat exchangers are either 1, 2, or 4 pass designs on the tube side. This refers to the number of times the fluid in the tubes passes through the fluid in the shell. Two and four pass designs are common because the fluid can enter and exit […]
What is rear view in drawing?
What is low temperature refrigeration?
What is low temperature refrigeration? Low temperature refrigeration is defined as those applications requiring evaporator temperatures in the range of -20 oF down to -250 oF. The vast majority of installations would be at temperature above -125 oF., however systems down to -250 oF are covered. What are the approximate temperature ranges for low medium […]
What is the name of the procedure that scientists often follow to solve problems?
What is the name of the procedure that scientists often follow to solve problems? At the core of biology and other sciences lies a problem-solving approach called the scientific method. What process do scientist use as a way to perform research with defined steps that include experiments and careful observation? The scientific method is a […]
Which of the following is a dimensionless number?
Which of the following is a dimensionless number? All pure numbers are dimensionless quantities, for example 1, i, π, e, and φ. Units of number such as the dozen, gross, googol, and Avogadro’s number may also be considered dimensionless. What is meant by dimensionless number? A number representing a property of a physical system, but […]
What is the correct posture for sitting at a computer?
What is the correct posture for sitting at a computer? The correct sitting position remains almost the same. Your arms should be resting parallel to the floor, your legs should be in the same position and your feet should still be flat. Your back should be against the chair, and your shoulders should be back […]
What is the main advantage of the ranch style home?
What is the main advantage of the ranch style home? Here are some of the advantages of a ranch-style home: Larger living space: The lack of staircases frees more square footage for living area. Easier access to the great outdoors: Ranch-style homes were developed with easy access to the yard in mind. What are the […]
What are the advantages of closed loop circuits over open loop circuits?
What are the advantages of closed loop circuits over open loop circuits? Closed-loop control systems have many advantages over open-loop systems. One advantage is the fact that the use of feedback makes the system response relatively insensitive to external disturbances and internal variations in system parameters such as temperature. What are the advantages of open […]