What is HVAC cop? COP stands for Coefficient Of Performance and indicates the efficiency of heating and cooling machines. The COP is defined by the ratio heat dissipation and electrical power intake. It’s like the efficiency of the machine, but higher than 100%. It could be less than 100% for a machine not working properly. […]
Which bearing material is best suited for hard journals?
Which bearing material is best suited for hard journals? Polytetrafluoroethylene (PTFE), commonly known as Teflon, is a thermoplastic polymer material whose high chemical inertness, self-lubricating property, and low friction coefficient makes it a suitable material for rolling-element bearing cages, journal, and sliding bearings, among others. What are plain bearings made of? Metal-polymer plain bearings consist […]
What are the main features of a separatory funnel that makes it suitable for extraction?
What are the main features of a separatory funnel that makes it suitable for extraction? A separatory funnel (sep funnel) is used to separate immiscible liquids. When two immiscible liquids are placed in a separatory funnel, two layers are seen. The denser solvent will be the bottom layer. Most halogenated solvents are denser than water, […]
Which part of a construction plan shows the plan view of the foundations of a building?
Which part of a construction plan shows the plan view of the foundations of a building? The foundation plan is a plan view drawing, in section, showing the location and size of footings, piers, columns, foundation walls, and supporting beams. What does an architectural drawing contain? Architectural drawings are made according to a set of […]
What is considered Mother Nature?
What is considered Mother Nature? Mother Nature (sometimes known as Mother Earth or the Earth Mother) is a personification of nature that focuses on the life-giving and nurturing aspects of nature by embodying it, in the form of the mother. Why do we say Mother Nature? ‘Mother Nature’ is a way of personifying nature, and […]
What is nominal torque gearbox?
What is nominal torque gearbox? The most common torque and often the most important is the nominal torque. This is the torque that can transmit a gearbox for a long time without any interruption. This torque is also called RMS torque (Root Mean Square) and can be calculated using the formula listed in our catalogues. […]
What is the density of an object with a mass of 60 g and a volume of 2 cm 3?
Is a circuit conductor between the service equipment and the branch circuit overcurrent device?
Is a circuit conductor between the service equipment and the branch circuit overcurrent device? All circuit conductors between the load side of the service equipment and the line side of the final branch circuit overcurrent device are feeder conductors. Is the circuit conductors between the final overcurrent device and the outlets? The conductors between the […]
How do you find the slope of a canal?
How do you find the slope of a canal? Calculate the channel slope. Using the formula, slope equals change in elevation divided by ground distance. For example, if the ground distance is 11/16 or 0.69 inches and the scale factor is 1 inch equals 2,000 feet per inch, this equals 1,380 feet. The channel slope […]
What are the ways an employer can protect workers from falls?
What are the ways an employer can protect workers from falls? There are a number of ways employers can protect workers from falls, including through the use of conventional means such as guardrail systems, safety net systems and personal fall protection systems, the adoption of safe work practices, and the provision of appropriate training. What […]