42. __________It is usually best to delegate responsibility for an entire task, project, or function to one person. Delegation by task is the easiest approach and a good place to start if you're new to this. Delegating by project represents a higher level of delegation. It increases the scope of the delegation assignment and generally requires a staff member who can handle a wide range of responsibilities. Managers with many direct reports may choose to delegate assignments by function. (A) Delegation has many advantages, as well as some disadvantages. (B) There are signs that you should do more delegating or more effective delegating. (C) Delegation implies that managers lose control of their projects and abdicate their responsibilities. (D) Delegation can be carried out in several ways.

44. __________ The most frequent cause is an air mixture that is too rich; that is, the fuel-air ratio is greater than 10:1. The second most frequent cause is oil in the fuel in concentrations greater than 60 cc per gallon of fuel. The result of such heavy concentrations of oil is seen in the dense blue exhaust smoke. A third, and somewhat less frequent, cause is the speed of the engine itself. The lower the speed, the greater the density of smoke from oil burning in the combustion chambers. (A) Research into the causes of excessive smoke in the exhaust systems of small internal combustion engines shows that there are several factors responsible. (B) Research into excessive smoke in the exhaust systems of small internal combustion engines shows no significant correlation between amounts of smoke and the following three pollutants. (C) Research into excessive smoke in the exhaust systems of small internal combustion engines shows three main causes: a too thin air mixture, a low concentration of oil in the fuel, and fast engine speed. (D) Based on research, excessive smoke results in three major kinds of pollution: a too thin air mixture, a low concentration of oil in the fuel, and fast engine speed.

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