How do you read a screw thread callout? Here are the five steps to interpreting thread callout: Look at the numbers in the callout. Understand the first number in the callout – This indicates the major diameter. Understand the second number in the callout – This indicates the distance between threads. Read the length – […]
What is refrigerator in thermodynamics?
What is refrigerator in thermodynamics? A refrigerator is a device which is designed to remove heat from a space that is at lower temperature than its surroundings. The same device can be used to heat a volume that is at higher temperature than the surroundings. In this case the device is called a Heat Pump. […]
How much work is required to lift a 10 Newton?
What is the weight of a glider with a mass of 5.3 grams?
What is laser and its principle?
What is laser and its principle? The principle of laser amplification is stimulated emission. If the gain is larger than the losses, the power of the light in the laser resonator rises very rapidly, starting e.g. with low levels of light from fluorescence. What is the full meaning of laser? light amplification by stimulated emission […]
How often do you need to replace car batteries?
How often do you need to replace car batteries? After three years, it’s normally time to install a replacement. After four or five years, most car batteries will be almost completely unreliable. Old car batteries can present a number of safety and reliability issues. Luckily, it’s easy to identify if your car’s battery is nearing […]
What are the factors influencing the ideal Brayton cycle efficiency?
What are the factors influencing the ideal Brayton cycle efficiency? Key factors affecting the Brayton cycle efficiency includes the turbine inlet temperature, compressor and turbine adiabatic efficiencies, recuperator effectiveness and cycle fractional pressure loss. Which gas turbine is used in aircraft? Turbofans What is meant by gas turbine? A gas turbine is a combustion engine […]
How do you calculate the amount of heat lost?
What is a screen scheme?
What is a screen scheme? A ‘screen scheme’ allows you to choose which screen will be shown to a Jira user when they perform a particular issue operation. There are three issue operations for which you can choose a screen: Create issue — the screen that is shown when an issue is being created. What […]
Can the COP of a refrigerator be greater than 1?
Can the COP of a refrigerator be greater than 1? COP of refriegeration is always greater than one. The coefficient of performance (COP) of refrigeration is always more than 1. COP is the ratio of heat extracted from the refrigerator to the work done on the refrigerant. It is also called by the name Theoretical […]