What is one disadvantage of a retractable roof greenhouse?
What will be an ideal response?
A single covering is used on the greenhouse that looses more heat than
double roof coverings.
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____ drawings are helpful in the interpretation of prints and the assembly of parts.
A. Assembly B. Usage C. Subassembly D. Building
What is plastigage used for measuring?
A. crankshaft endplay B. big end side play C. bearing clearance D. flywheel runout
Which tool is used to measure U-Joint working angles?
A) Dial indicator B) Micrometer C) Vernier caliper D) None of these are correct
What type of compressors are most commonly used in rooftop packaged units?
A) Semihermetic scroll or semihermetic rotary compressors B) Open-type centrifugal and open-type screw compressors C) Hermetic reciprocating or hermetic scroll compressors D) Hermetic rotary and hermetic centrifugal compressors