What is the effect of global warming on agriculture? Climate change can affect agriculture in a variety of ways. Beyond a certain range of temperatures, warming tends to reduce yields because crops speed through their develop- ment, producing less grain in the process. And higher tem- peratures also interfere with the ability of plants to […]
What are the different types of mounting?
What are the different types of mounting? Types of Mounting Methods Plate Type. Holes for mounting a caster are provided on the mounting base. Screw-in Type. Since a thread is provided on the stem, mount a caster by screwing the caster on the stem. Insertion Type(Rubber Pipe Type) Angle Type. Dedicated wrenches for mounting casters. […]
What does coping saw mean?
What does coping saw mean? : a handsaw with a very narrow blade held under tension in a U-shaped frame and used especially for cutting curves in wood. What is the difference between a coping saw and a hacksaw? Usage. The coping saw blade is installed with the teeth pointing towards the handle. Unlike a […]
What is the effect of compression ratio on efficiency of Otto cycle?
What is the effect of compression ratio on efficiency of Otto cycle? As the compression ratio increases, the fuel mixture is sufficiently compressed thereby increasing the thermal efficiency, so that less fuel is required to produce the same amount of energy. Fuel consumption is reduced at higher compression ratios between 8 and 9. What is […]
Why the COP for heat pump is more than the COP of refrigeration?
What is point point control?
What is point point control? The point-to-point (PTP) control system is many times referred to as the positioning system. The primary function of the PTP control system is to move a tool from one point location to another specified point, generally to do hole operations such as drilling, boring, reaming, tapping and punching. What is […]
What happens when energy is added to ice?
What happens when energy is added to ice? Changing states of matter and energy When heat (a form of energy) is added, the ice melts into liquid water. If heat is removed from water vapour, the gas cools down and it condenses back into liquid water. Continue to cool the water (by removing heat), and […]
Does a heat engine that has a thermal efficiency of 100 percent?
Does a heat engine that has a thermal efficiency of 100 percent? Heat engines often operate at around 30% to 50% efficiency, due to practical limitations. It is impossible for heat engines to achieve 100% thermal efficiency () according to the Second law of thermodynamics. Does a heat pump violate the second law of thermodynamics? […]
What is the speed of the jet stream winds?
What is the speed of the jet stream winds? 129 to 225 kilometers per hour Who invented jet stream? Heinrich Seilkopf Why is the jet stream weakening? Climate scientists have hypothesized that the jet stream will gradually weaken as a result of global warming. Trends such as Arctic sea ice decline, reduced snow cover, evapotranspiration […]
What is the first step of the design process?
What is the first step of the design process? Discovery is the first step of the design process, where teams work together to develop an understanding of the problem they are trying to solve, and define the path they will take to explore solutions. It culminates in the communication of a vision – a concise […]