The ratio of how much light is produced by a lamp (in lumens) to how much energy is consumed by the lamp (in watts) is known as
a. efficacy
b. efficiency
c. illumination cost
d. energy cost
a. efficacy
You might also like to view...
When the public water supply is inadequate to serve firefighting needs, alternative water sources are needed. Which of the following might be considered? Select all that apply.
A) A storage tank with a 15-minute supply. B) A lake. C) A well with sufficient capacity.
Our natural resources, such as our forests, water, iron, coal, and oil, helped build our industrial greatness
Indicate whether the statement is true or false
Which mode of operation results in a richer air-fuel mixture near the spark plug?
A) Stoichiometric B) Knock protection C) Homogeneous D) Stratified
Status word S:13 contains the ________
A) Un-rounded quotient for DIV instruction B) Most significant word of the 32-bit value of the MUL instruction C) Least significant word of the 32-bit value of the MUL instruction D) None of the above