The higher heating value (HHV) of a fuel is which of the following?

A) Heat from adiabatic combustion initially at 100°C and cooling combustion products to 25°C.
B) Heat from combustion initially at 100°C with 10% excess air and cooling the flue gas to 100°C.
C) Heat by stoichiometric combustion initially at 25°C and cooling combustion products to 25°C.


C) Heat by stoichiometric combustion initially at 25°C and cooling combustion products to 25°C.

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____ is often a problem when an area’s configuration has limited openings.

a. Sunlight b. Lighting c. Heat d. Ventilation

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Measures of Central Tendency is most closely described as:

a. most frequent measure in a distribution. b. a characteristic of a sample c. descriptive measures that indicate the dispersion of a set of values. d. a quantitative measure of the chances for a particular outcome or outcomes.

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Before planting, does tillage prepare a weed-free seedbed that greatly simplifies weed control during

the growing season?

Indicate by YES (Y) or NO (N).

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Which tool is used to measure U-Joint working angles?

A) Vernier caliper B) Dial indicator C) Micrometer D) None of these is correct.

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