Which piece of equipment shears off sections of soil and flips them over?
a. chisel plow c. cultivator
b. moldboard plow d. disk plow
B
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An electrical resistance heater is placed inside a hollow cylinder. The heater has a surface temperature of 500°F, while the inside of the cylinder is maintained at 80°F. If the surface area of the heater is 1.25 ft2, and the emissivity of the heater is 0.90, what is the net rate of radiation heat transfer from the heater?
Given: Ts = 500°F = 960 R; Tsurr = 80°F = 540 R; A = 1.25 ft2; ?= 0.90 What will be an ideal response?
The nominal dimension of a masonry unit whose actual dimension equals 7-5/8 in. is ______.
A) 7-3/4 in. B) 7 in. C) 7-1/4 in. D) 7-1/2 in. E) none of the above.
Which of the following statements is incorrect?
A) All planning is based on long-term organizational goals. B) You should always consider your core competencies when planning. C) Short-range planning helps you to adjust when unexpected events occur. D) Tactical planning is commonly the source for your annual goals and objectives.
What components on an oil furnace should be changed annually?
A) The fuel line filter B) The fuel line filter, nozzle, ignition transformer and electrodes C) The fuel line filter and the nozzle D) The fuel line filter, nozzle and electrodes