How do you calculate the diametral pitch of a bevel gear? The Diametral Pitch (DP) is the number of teeth per inch of diameter of the pitch circle. The units of DP are inverse inches (1/in). The Diametral Pitch (DP) is equal to π divided by the Circular Pitch (CP). What is Dedendum formula? Explanation: […]
What are the 4 acceptable thawing methods?
What are the 4 acceptable thawing methods? There are four acceptable methods for thawing food: in a refrigerator, under cold running water, in a microwave, or as part of the cooking process. How is defrosting done? The defrost mechanism in a refrigerator heats the cooling element (evaporator coil) for a short period of time and […]
What is SAE 1020 steel?
What is SAE 1020 steel? AISI 1020 has low hardenability properties and is a low tensile carbon steel with a Brinell hardness of 119 – 235, and a tensile strength of 410-790 MPa. It has high machinability, high strength, high ductility and good weldability. It is normally used in turned and polished or a cold […]
What is a process in which the system remains infinitesimally close to an equilibrium state at all times?
What is a process in which the system remains infinitesimally close to an equilibrium state at all times? 2.8 QUASI-STATIC PROCESS If a process is carried out in such a way that at every instant, (intermediate states-‘a’, ‘b’, ‘c’, ‘d’) the system remains infinitesimally close to thermodynamic equilibrium state, then such a process is called […]
What is a boundary layer in aviation?
What is entropy in thermodynamics?
What is entropy in thermodynamics? Entropy, the measure of a system’s thermal energy per unit temperature that is unavailable for doing useful work. Because work is obtained from ordered molecular motion, the amount of entropy is also a measure of the molecular disorder, or randomness, of a system. Can entropy increase in a closed system? […]
What does analogRead return?
What does analogRead return? The microcontroller of the board has a circuit inside called an analog-to-digital converter or ADC that reads this changing voltage and converts it to a number between 0 and 1023. In between, analogRead() returns a number between 0 and 1023 that is proportional to the amount of voltage being applied to […]
What are the different modes of heat transfer explain?
What are the different modes of heat transfer explain? Heat flows across temperature differences. There are three modes of heat transfer: conduction, radiation, and convection. Conduction and radiation are fundamental physical mechanisms, while convection is really conduction as affected by fluid flow. What is the difference between conduction and convection name one medium in each […]
What does annealing temperature depend on?
What does annealing temperature depend on? The annealing temperature of a standard PCR protocol is either 55°C [2, 3] or 60°C [4]. The chosen temperature depends on the strand-melting temperature of the primers and the desired specificity. For greater stringency higher temperatures are recommended [2]. Why do different primers require different annealing temperatures? In lower […]
Why is it necessary to wear masks during the COVID-19 pandemic?
Why is it necessary to wear masks during the COVID-19 pandemic? Masks are recommended as a simple barrier to help prevent respiratory droplets from traveling into the air and onto other people when the person wearing the mask coughs, sneezes, talks, or raises their voice. This is called source control. If everyone wears a mask […]