Good ventilation is important when working around refrigeration equipment because modern refrigerants ____.
A. are toxic and can poison you
B. have an unpleasant odor
C. are heavier than air and may displace the oxygen around you
D. Both a and c.
Answer: C
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hat is the benefit of a helical gear over a spur gear?
What will be an ideal response?
Steering pull to the right occurs only when braking. The most likely cause of this problem is:
A. Excessive positive camber on the left-front wheel B. Excessive positive caster on the right-front wheel C. Excessive toe-out on the right-front wheel D. A loose strut rod bushing on the right-front suspension
The purpose of a welded joint is to join parts together so that the ____.
A. weld does not interfere with the sliding B. least amount of scrap is produced C. the thickness of the joint will be acceptable D. completed weldment can withstand the stresses
Suppose that the own-price elasticity for Ragu spaghetti sauce is -1.25. Which of the following is (are) true?
A) The demand for Ragu spaghetti sauce is unitary elastic. B) A 4% increase in price leads to a 5% decrease in quantity demanded. C) A 10% decrease in price leads to an 8% increase in quantity demanded. D) None of the above.