What is the ozone layer?
What will be an ideal response?
A concentration of ozone molecules in the stratosphere.
You might also like to view...
An existing steady state refrigerator has been operating using the vapor-compression cycle for some months, with a C.O.P. of 3.1. Today the rate at which work is being added to the compressor is the same, but QC has decreased. Which of the following statements must be true?
A. QH must be smaller in magnitude than normal. B. QH must be larger in magnitude than normal. C. The compressor efficiency is lower than normal. D. The new C.O.P must be higher. E. None of these statements can be true.
For circuits supplying loads consisting of motor-operated utilization equipment (fastened in place with a motor larger than 1.8 hp) in combination with other loads, the total calculated load must be based on ____% of the largest motor load plus the sum of the other loads.
A. 50 B. 75 C. 100 D. 125
Because projected economic conditions and stability of employment in a given area are subject to change, these considerations are of little value in researching the market being evaluated as a possible location for starting a new business
A. True B. False
The accuracy between an external and an internal thread is specified in trade handbooks and manufacturer's tables as a ____.
A. thread fit B. thread form C. thread class D. thread code