What will help keep an engine cool in hot weather?
a. Making sure the engine has the right amount of oil.
b. Avoiding high-speed driving.
c. Proper V-belt tightness.
d. All of the above.
d. All of the above.
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Clay soil should never be rolled because of potential compaction
Indicate whether the statement is true or false
A small strip-mining coal company is trying to decide whether it should purchase or lease a new clamshell. If purchased, the “shell” will cost $150,000 and is expected to have a $65,000 salvage value after 6 years. Alternatively, the company can lease a clamshell for only $20,000 per year, but the lease payment will have to be made at the beginning of each year. If the clamshell is purchased, it will be leased to other strip-mining companies whenever possible, an activity that is expected to yield revenues of $12,000 per year. If the company’s MARR is 15% per year, should the clamshell be purchased or leased on the basis of a future worth analysis? Assume the annual M&O cost is the same for both options.
What will be an ideal response?
PVC, CPVC, and ABS should not be used for compressed gases because they may shatter suddenly if the pipe fails.
Answer the following statement true (T) or false (F)
On a geothermal heat pump, it is possible for scale to build up inside the refrigerant lines.
Answer the following statement true (T) or false (F)