Is a steel deck made of cold-formed steel or structural steel?
What will be an ideal response?
Cold-formed steel.
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A telescopic gauge can be used to measure ________
A) Cylinder bore taper B) Housing bore out of round C) Camshaft bearing out of round D) Any of these
Technician A says that both R-12 and R-134a refrigerants are lighter than air when in a gaseous state. Technician B says that using an electronic leak detector is not always the best way of sourcing a leak because its sensitivity can make identifying the location difficult. Who is correct?
a.Technician A only b.Technician B only c.Both A and B d.Neither A nor B
Answer the following statement(s) true (T) or false (F)
1. A 1° temperature difference in Celsius is equal to a 1° temperature difference in Kelvin. 2. Heat flows naturally from a hot object to a cold objects. 3. The energy content of food is typically expressed in Calories, which is equal to 1000 calories. 4. Thermal conductivity is a property of materials that shows how good the material is in transferring thermal energy (heat) from a high-temperature region to a low-temperature region within the material. 5. The R-value or R-factor of a material provides a measure of resistance to heat flow: The higher the value, the less resistance to heat flow the material offers.
Which item is not mentioned in the SAE J2099 standard of refrigerant purity?
A. Moisture B. Sludge C. Refrigerant oil D. Air (non-condensable gas)