The Duty Rating Refers to the Number of Consecutive Seconds

Multiple Choice

The duty rating refers to the number of consecutive seconds a machine can be operated before it overheats,and the duty cycle refers to the portion of every minute that the dental machine can be used without overheating.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true,the second is false.
D) The first statement is false,the second is true.