Mechanical/Electrical Systems Sample Test

Here are some sample test questions for Mechanical & Electrical Systems. The answers are highlighted in orange.

Questions:
	1. Which of the following does NOT cause corrosion in water pipes? (A) Acidity (B) Hydrogen (C) Oxygen (D) Conductivity Click here for answer 2. At what temperature would the domestic hot-water-tank thermostat be set? (A) 105º F [40.6º C] (B) 110º F [43.3º C] (C) 115º F [46.1º C] (D) 140º F [60.0º C] Click here for answer 3. The CRI (Color Rendering Index) of a light is a measure of how closely light approximates daylight of the same color temperature. A CRI of 90 represents a source that would be described as (A) poor (B) fair (C) good (D) excellent Click here for answer 4. Which of the following is NOT usable information available from Sun charts? (A) Sun position in a Sun path (B) Times of day during Sun pass (C) Seasonal Sun paths (D) Temperature at any point in time Click here for answer 5. In buildings, dbA measurements are acoustic measurements (A) that are matched to the low-frequency sound-level response of the human ear (B) that indicate the strength of acoustic waves reflected from space surfaces (C) of the coupling that occurs between the air and the structure (D) of the dissipation of structure-bone noise Click here for answer 6. Which of the following is NOT an instantaneous heat gain to the occupied space? (A) Thermal transmission (B) Occupancy (C) Lighting (D) Electrical office equipment Click here for answer 7. Which of the following are true of evaporative cooling? I. It removes sensible heat II. It removes latent heat III. It operates best in a warm dry climate (A) I and II only (B) I and III only (C) II and III only (D) I, II, III Click here for answer 8. Exterior wall-glass material and area affect all of the following except (A) heating load (B) cooling load (C) shade control requirements (D) skin air leakage Click here for answer 9. Smoke-control requirements for a high-rise building must include all of the following EXCEPT (A) pressurized exit stairwill(s) (B) fire-floor smoke exhaust (C) smoke-control system (D) local firehose cabinets Click here for answer 10. Thomas Edison demonstrated the incandescent lamp in 1879. He also developed all of the equipment to replace gas streetlighting with electric lighting. In 1882, he make his first demonstration installation in (A) London (B) Los Angeles (C) Paris (D) New York Click here for answer

	That’s the end of this group of 10 questions.

Answers:
	The answers are highlighted in orange.

	1. Which of the following does NOT cause corrosion in water pipes? (A) Acidity (B) Hydrogen (C) Oxygen (D) Conductivity Click here to return to question 2. At what temperature would the domestic hot-water-tank thermostat be set? (A) 105º F [40.6º C] (B) 110º F [43.3º C] (C) 115º F [46.1º C] (D) 140º F [60.0º C] Click here to return to question 3. The CRI (Color Rendering Index) of a light is a measure of how closely light approximates daylight of the same color temperature. A CRI of 90 represents a source that would be described as (A) poor (B) fair (C) good (D) excellent Click here to return to question 4. Which of the following is NOT usable information available from Sun charts? (A) Sun position in a Sun path (B) Times of day during Sun pass (C) Seasonal Sun paths (D) Temperature at any point in time Click here to return to question 5. In buildings, dbA measurements are acoustic measurements (A) that are matched to the low-frequency sound-level response of the human ear (B) that indicate the strength of acoustic waves reflected from space surfaces (C) of the coupling that occurs between the air and the structure (D) of the dissipation of structure-bone noise Click here to return to question 6. Which of the following is NOT an instantaneous heat gain to the occupied space? (A) Thermal transmission (B) Occupancy (C) Lighting (D) Electrical office equipment Click here to return to question 7. Which of the following are true of evaporative cooling? I. It removes sensible heat II. It removes latent heat III. It operates best in a warm dry climate (A) I and II only (B) I and III only (C) II and III only (D) I, II, III Click here to return to question 8. Exterior wall-glass material and area affect all of the following except (A) heating load (B) cooling load (C) shade control requirements (D) skin air leakage Click here to return to question 9. Smoke-control requirements for a high-rise building must include all of the following EXCEPT (A) pressurized exit stairwill(s) (B) fire-floor smoke exhaust (C) smoke-control system (D) local firehose cabinets Click here to return to question 10. Thomas Esison demonstrated the incandescent lamp in 1879. He also developed all of the equipment to replace gas streetlighting with electric lighting. In 1882, he make his first demonstration installation in (A) London (B) Los Angeles (C) Paris (D) New York Click here to return to question