A two-story building is 60 X 40 with 10-foot ceilings. The ceiling consists of plaster and lath, over which 1/2" insulation has been laid. What is the expected BTUH loss with a temp differential of 25 degrees?

Fill in the blank(s) with the appropriate word(s).


15,600 BtuH

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La herramienta para concreto que se muestra en la Figura 2 es _____.



a. una aplanadora mecánica
b. una canteadora
c. un fratás
d. una llana

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The upper radiator hose collapses when the engine cools. What is the most likely cause?

A) A defective upper radiator hose B) The spring is missing from the upper radiator hose which is used to keep it from collapsing C) A defective thermostat D) A defective pressure cap

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If the period of a square wave is 22 ms, what is its frequency?

A) 22 kHz B) 45.5 kHz C) 45.5 Hz D) 22 Hz

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Drawing includes ____________________ (rapid, freehand drawings) as well as more exacting depiction such as that required for technical work.

Fill in the blank(s) with the appropriate word(s).

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