Category: Engineering

What is known as the efficiency of doing work? By working efficiently, more can be produced with the same amount of input (resources)(1). In short, achieving more for lower costs, a higher return and less pressure. Efficiency means ‘doing things in the right way’. 2. Two sorts of efficiency are often referred to, namely static […]

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 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? The back view can also be referred to as the rear view. To produce an accurate drawing of an object, it is seldom necessary to show all six views. A working drawing typically shows three views of an object, which is sufficient to describe its shape and give all […]

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? 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 […]

Why does deformation occur along plate boundaries? Crustal Deformation Processes As the plates move, the crust deforms dominantly along the plate margins. Therefore, temperature and pressure control deformation processes. Ductile rocks tend to bend, fold, stretch, or flow due to compressional or extensional forces. Brittle rocks, on the other hand, tend to break. What force […]

How can I reduce my stress concentration? These include: Avoiding sharp corners and only using rounded corners with maximum radii. Sanding and polishing surfaces to remove any notches or defects that occur during forming and processing. Lowering the stiffness of straight load-bearing segments. Placing notches and threads in low-stress areas. How do you calculate stress […]

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? 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 […]