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Questions in engineering

[Free] A conduit run is installed along a ceiling and must be supported every 8-2/3 feet. If the total run is 34-2/3 feet, how many supports are required?

[Free] 31.) Adding more refrigerant than necessary can cause system damage and decrease system performance. True False

[Free] What should the operator of a stand-on vessel do when encountering a giveaway whistle?

[Free] Cordless hammer drills typically use batteries in the _______ range.

[Free] Which SAE standard covers recommended service procedures for the containment of HFC-134a (R-134a)? A. SAE J639 B. SAE J2064 C. SAE J2211 D. SAE J2845

[Free] What is the main purpose of system performance verification in an AV project? A) To design the initial layout of the AV system. B) To simplify the training process for users. C) To ensure all components meet design specifications and function correctly. D) To select the cheapest equipment for the project.

[Free] Which of the following would you close in the event of a blackout? A. The cooling water supply to engine coolers B. The steam supply to fuel oil heaters C. The engine room exhaust vents D. The steam supply to tank heating

[Free] The most commonly used metric prefixes in the automotive industry are:

[Free] In RCC work, if the adhesion of the concrete to steel is not perfect within elastic limits, then: (a) Steel will be overstressed (b) Steel reinforcement may break (c) Concrete will be overstressed (d) Steel will bear more stress than concrete

[Free] Which part may have grooves caused by heat and friction?