Estimate the cycle time and production of a 30-cubic-yard wheel tractor scraper carrying rated capacity, operating on a 4,500-foot level haul. The road flexes under load, has little maintenance, and is rutted. Material is 3,000 lb/BCY. The scrapers are push-loaded by one 385-horsepower, tracktype pusher tractor. How many scrapers can be served by this one pusher

What precautions should you take to prevent injuries when dealing with heavy loads?

Which from the following instrument is commonly used to detect the high pitch butzing sound in bearings? [clo4] a)-digital ultrasonic meter b)-infrared camera c)-spectroscopic d)-vibrometer

Acompressor compresses a gas, a pump compresses a liquid. for a given pressure ratio, why does it take more work to compress a gas in a compressor than a liquid in a pump? a)- for a given pressure ratio the average specific volume for a gas is much higher than the average specific volume for a liquid. b)- there is no difference. the only difference is the amount of heat generated (not work) c)- for a given pressure ratio the average volurge for a gas is much higher than the average volume for a liquid. d)-there is no difference