Capacity & power requirement for an air compressor working at high altitude compared to sea-level will be

ANS:B - less

The capacity and power requirement for an air compressor working at high altitude compared to sea level will generally be less. This is primarily due to the lower air density at higher altitudes. At higher elevations, the air pressure and density decrease, which means that there are fewer air molecules available for compression. As a result, the compressor does not need to work as hard to compress the air to the desired pressure, leading to lower power requirements. However, it's essential to consider other factors such as temperature and humidity, which can vary depending on the specific location and climatic conditions at high altitudes. In some cases, the decrease in air density may be offset by other factors, but in general, air compressors operating at higher altitudes tend to have lower capacity and power requirements compared to those at sea level.