Describe how detector tubes reveal the presence and quantity of a specific gas.
What will be an ideal response?
The tube is calibrated in PPM or percent levels with marked increments on the side. The inside of the tube is filled with a material specific to the gas being tested and will change color as gas contacts the material. The length of color change along the scale reveals the amount of gas being tested for.
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Federal law prohibits feeding _____ to swine, including companion pigs
a. pumpkin b. human food c. pig slop d. dog food
The condensing temperature has to be higher than the ambient air temperature because:
a. Heat goes to cold; the heat in the condenser must transfer to the ambient air. b. The compressor is designed to only raise temperatures, not lower them. c. To allow for a safety factor in case the condenser gets dirty.
Rack and pinion steering gears and linkages are less compact compared to recirculating ball steering gears and parallelogram steering linkages.
Answer the following statement true (T) or false (F)
In bidirectional line switched ring, protection switching occurs at the ________ level of the network
Fill in the blank(s) with correct word