CM 411 Package deal Exam Questions With Complete Solutions Rated A+

Assume that you have a 120 volt circuit with 2 lights (of equal resistance) connected in a series. What is the voltage across each light? - CORRECT ANSWER-60 Assume that you have a 120 volt circuit with 2 lights (of equal resistance) connected in parallel. What is the voltage across each light? -...

12,000 - CORRECT ANSWER-A ton of cooling is equal to _______ BTU/hr 50% - CORRECT ANSWER-Comfort is usually attained at normal cooling and heating temperatures with a relative humidity of about Circulation - CORRECT ANSWER-is the movement of air air pollutant source, poor ventilation, unant...

If you have a circuit with a 9-volt battery and 3 lights (of equal resistance) connected in series. What is the voltage across each light? - CORRECT ANSWER-3 V If you have a circuit with a 9-volt battery and 3 lights (of equal resistance) connected in parallel. What is the voltage across each lig...

A_____is an electrical device containing fuses or circuit breakers for protecting the individual circuits of a residence and serves as a means of disconnecting the entire residence from the distribution system - CORRECT ANSWER-Service Panel A(n)____is an electric device that uses electromagnetism...

What is an electrical unit that measures - CORRECT ANSWER-Power Ohms is an electrical unit that measures - CORRECT ANSWER-Resistance Ohm's Law establishes the relationship between: - CORRECT ANSWER-Voltage, current, and resistance The power formula is useful when determining expected _____...

Current - CORRECT ANSWER-A flow of electric charge. Amperes - CORRECT ANSWER-the unit for measuring electrical current; the abbreviation is amp. Conductor - CORRECT ANSWER-A material that allows heat and electricity to pass through it. Insulator - CORRECT ANSWER-A material that does not all...

The differences for standard bathroom and ADA compliance bathroom are all except for - CORRECT ANSWER-Labeling "ADA compliance" on all fixtures DFU stands for - CORRECT ANSWER-Drainage fixture unit The typical drainage slope for sanitary piping is 1/4 inch per - CORRECT ANSWER-1 foot PVC ...

What type of lighting fixture would you specify if you wanted the longest lamp life? - CORRECT ANSWER-Mercury Vapor What type of lighting fixture would you specify if you wanted the best overall combination of cost, efficiency, color rendition, and life? - CORRECT ANSWER-Fluorescent What term ...

A building may have: - CORRECT ANSWER-One system ground at the service only Types of grounds include: - CORRECT ANSWER-A copper ground rod; a metal cold water pipe; or a UFER ground Locations where a GFCI is required by code include: - CORRECT ANSWER-Bathrooms and Outdoors Which is capable ...

3 volts - CORRECT ANSWER-Assume that you have a circuit with a 9 volt battery and 3 lights (of equal resistance connected in series). What is the voltage across each light? 9 volts - CORRECT ANSWER-Assume that you have a circuit with a 9 volt and 3 lights connected in parallel. What is the voltag...

A pre-requisite for a cost estimate is - CORRECT ANSWER-Scope definition Mechanical bid solicitation may come from - CORRECT ANSWER-Any of the above Who would typically program the building control system? - CORRECT ANSWER-automation contractor Where could you find the piping insulation typ...

The pressure of the atmosphere on the mercury in the open dish prevents mercury in the tube from ___ - CORRECT ANSWER-Running out Heat flows from the hot __ to the __ condensing medium operating refrigeration system - CORRECT ANSWER-refrigerant vapor; cold The second digit in a two-digit refri...

Which is not an element for "comfort" - CORRECT ANSWER-Noise Normal Ventilation for a building is - CORRECT ANSWER-20 CFM per person Comfort for heating and cooling is usually attained with a relative humidity of - CORRECT ANSWER-50% Water flow is typically expressed in which units? - COR...

A. plumbarius - CORRECT ANSWER-An individual who worked in the sanitary field in ancient Rome was called a(n) A. plumbarius B. electrician C. field worker D. none of the above C. amber - CORRECT ANSWER-The word electricity is derived from the Greek word for_______. A. lumen B. ferrite C. a...