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Questions in engineering

[Answered] The purpose of a reheat coil when dehumidifying is to A. dry the moisture out of the air. B. prevent the air from freezing. C. regenerate the evaporator coil. D. decrease the relative humidity by increasing the air temperature.

[Answered] A front-wheel drive vehicle has a broken condenser line. What other vehicle component may also be defective that could have caused the condenser line to break? A) Shock absorbers B) AC compressor drive belt C) Cooling fan D) Engine mounts

[Answered] Which of the following is true about using accessories, such as earmuffs, while wearing a hard hat? A. They should only be worn in restricted areas B. They must be installed by a qualified person C. They must not interfere with the fit of the hard hat D. They will decrease the level of protection provided by the hard hat

[Answered] The door used to control interior temperature is called the A. recirculation B. temperature-blend C. outside (fresh) air D. mode door.

[Answered] Explain fault finding principles and techniques for alternating and direct current main supply circuits.

[Answered] Environmental sustainability and human health considerations play important roles in decisions that engineers make as they create and design products. A. False B. True

[Answered] Select the best answer for the question. What's needed to calculate the CFM required to provide a given number of air changes in a building? A. Floor area, ceiling height, and fan horsepower B. The floor area, ceiling height, and an enthalpy chart C. The floor area and ceiling height D. A psychrometric chart and an enthalpy chart

[Answered] Which statement describes the purpose of tags when locking and tagging out? A. They communicate danger and warn workers not to start, energize, operate, or close that equipment. B. They identify that a piece of equipment will not operate due to repairs or maintenance. C. All of the above

[Answered] Select the best answer for the question. 17. Which of the following is similar to a refrigeration-cycle dehumidifier? A. A gas-fired furnace with an integrated compressor B. An evaporative air conditioner C. A commercial freezer with an automatic defrost cycle D. A window unit with a single airflow over both the evaporator and condenser

[Answered] In situations where excavation operations endanger the stability of nearby buildings, walls, or other structures, what must be included as part of your employer's excavation plan? A. Support systems B. Mineral analyses C. Structural blueprints D. Contingency plans