Twin-tower enthalpy recovery loops are used mainly for _____
a. steam system heat recovery
b. comfort air conditioning
c. increased heat wheel capacity
d. desiccant dehumidification
b
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Mr. Chen owns and operates a farm. His net earnings from selfemployment were $41,572. He is required to file Schedule SE (social security tax) with his income tax. He paid $1,600 quarterly on his estimated taxes to cover the social security tax. His social security tax rate is 15.3 percent.
a. How much was his social security tax? b. What was the estimated social security tax he paid? c. What was the difference between the estimated tax and the actual tax, using a positive or negative number?
A CAT III certified DMM should be used whenever measuring high-voltage circuits or components. The CAT III rating relates to _________
A) High voltage B) High energy C) High electrical resistance D) Both A and B
A smoothly operating engine depends on ________
A) Compression levels below 100 psi (700 kPa) on most cylinders B) Cylinder compression levels above 100 psi (700 kPa) and within 70 PSI (500 kPa) of each other C) High compression on most cylinders D) Equal compression between cylinders
A vehicle equipped with a coil spring front suspension and a leaf spring rear suspension "dog tracks" while driving on a straight, level road. Technician A says that a broken center bolt could be the cause. Technician B says defective rear shock absorbers could be the cause. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B