The value of wool fleece is largely determined by the amount of clean wool that it produces
Indicate whether the statement is true or false.
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When lifting heavy objects you should:
A. Use your leg muscles. B. Use your back muscles C. Ask for help if you are not certain you can handle the size or weight of the object D. Both A and C
Leverage is a mechanical principle used to increase force
Indicate whether the statement is true or false
Two technicians are discussing which lubricants are used in a limited-slip differential. Technician A says to use SAE 80W-140. Technician B says that most vehicle manufacturers usually specify SAE 80W-90 be used with or without special limited-slip additives. Which technician is correct?
A) Technician A B) Technician B C) Both technicians D) Neither technician
Why do solenoid-type valves pose a problem for some types of burners?
A) Solenoids create too much pressure when closing. B) Solenoids' seal is not strong. C) Solenoids open and close too quickly. D) Solenoids open and close too slowly.