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Calculate the efficiency of a transformer given the following characteristics: input voltage = 120 V, input amperage = 4.3 A, output voltage = 36 V, and output amperage = 6.5 A. What is the approximate efficiency of the transformer? 

24. through 28.You have Hydraulic System Drive Cylinder with a radius of 1.5 inchesDriven Cylinder with a radius of 3.75 inchesEffort on the Drive of 22 lbs.What is the Drive Area?

If you have a Electric Motor that is rate as a 150 hp motor, but the motor runs on 480 Volt and draws 223 Amps. How efficient is the motor?

If one sheet of 7/16” 4’ x 8’ OSB weighs exactly 29.75 lbs. each for an exact total of 624.75 lbs and you have to move 21 sheet 25 feet in 10 minutes, how much horsepower would you create?

Calculate the Mechanical Advantage of a First Class Lever with the total length of the lever 6 feet long and the effort side measuring 59 inches. What is the MA?

Calculate the number of teeth on a chain and sprocket with the given information:Drive runs at 3330 rpmDriven spins at 1500 rpm and has 40 teeth. How many teeth does the Drive have?

A block and tackle system is advertised to develop a 75.25:1 IMA, but after you buy it you measure the AMA at only 70.65:1. What percentage of loss has occurred due to friction in the system? __________% 

You have a compound machine that uses a pulley system and an incline plane. The pulley system has a 4:1 mechanical advantage and the incline plan has a mechanical advantage of 7:1.What is the mechanical advantage of the compound machine?

What is the biggest difference between hydraulic and pneumatic systems?

Which of the following is a device that measures the force a rotating shaft produces so torque can be calculated?