_________ study insects to better understand the control of insects that attack animals as well as crops.
Fill in the blank(s) with the appropriate word(s).
Entomologists
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Which of the following statements is LEAST-Likely true?
A. Friction occurs between the piston rings and cylinder walls. B. Low-tension piston rings were introduced in the mid-1980s to improve fuel economy. C. Compression rings account for about 60% of the total drag on a cylinder wall, and the oil ring accounts for 20%. D. Cast iron rings are used in re-ring jobs when the cylinder walls have not been re-bored.
Technician A says that it is a good idea to recommend replacing upper strut bearings when replacing MacPherson struts. Technician B says that all MacPherson struts can be serviced by replacing the cartridge inside the strut assembly. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
The amount of power consumed is directly related to the amount of work done. If we can reduce the amount of work required to heat or cool a structure, we will __________.
A. generate power B. maximize power C. save power D. waste power
Open-collector circuits are especially well suited for high speed switching circuits
Indicate whether the statement is true or false