TEST YOUR ICY INTELLECT
QUESTIONS FROM THE ICE BUCKET
QUESTION:
Which temperature is colder: -40 Celsius or -40 Fahrenheit?
ANSWER:
Both temperatures are equal. The Celsius and Fahrenheit scales meet at -40 degrees; they are the exact same temperature because that is the precise point where both scales intersect.
QUESTION:
In which year was the first successful demonstration of refrigeration using compressed ammonia?
ANSWER:
The first successful demonstration of refrigeration using compressed ammonia was in 1856 by Australian inventor James Harrison.
QUESTION:
Which ice rink has the fastest ice in the world and where is it?
ANSWER:
The fastest ice on Earth can be found at the Utah Olympic Oval in Kearns, UT, at an elevation of 4,528 feet. Every current speed skating world record has been set on this ice, making it unmatched anywhere else on the planet.
QUESTION:
Compare 10 PSIA and 10 PSIG:
Which indicates a higher pressure?
ANSWER:
10 PSIG. At standard atmospheric conditions, 0 PSIG = 14.7 PSIA (at sea level). So, 10 PSIG = 24.7 PSIA (10+14.7). 10 PSIA is essentially a vacuum. So, 10 PSIG is greater.
QUESTION:
How many BTU’S does it take to raise one pound of water 1°F?
ANSWER:
It takes 1 BTU to raise the temperature of one pound of water by 1°F. A BTU (British Thermal Unit). This measurement is commonly used in the heating and cooling industries to quantify the energy needed to heat or cool substances, particularly water.
QUESTION:
What type of EPA certification is required to work with ammonia refrigeration systems?
ANSWER:
None! Ammonia Refrigeration is exempt, but other types of refrigeration require EPA 608 Type II
QUESTION:
What are the three primary methods through which heat is transferred?
ANSWER:
The three primary methods of heat transfer are:
conduction
convection
radiation