In which heat treatment process, the specimen should be cooled in water or oil A: Tempering B: Annealing C: Quenching D: Case hardening

(The specific heat of water is 4190 J/Kg·K) You have a 200 g<br/>cup of water at 100 °C, too hot to drink. If you cool it by<br/>adding 100 gm of water at 10 °C, the water is cooled to (). A: 70°C B: 30°C C: 50°C D: 60°C

Mercury freezes if it is cooled to＿.

On condition that the liquid is cooled still,_will turn to a solid.

The crankcase can not be opened （）the parts have been cooled down.

Water-cooled oil coolers can be used in high-pressure applications such as those found in oil refineries and chemical processing plants.

Cooled air is ______ throughout the building. (U4-B) A: gone B: circulated C: chilled D: frozen

The best irrigation water is river water, pond water and lake water A: 正确 B: 错误

What water is used in the production of injection A: pure water B: purified water C: water for injection D: sterile water for injection

According to the distribution of oil, gas and water, the water at the edge of containing edge is called (). A: External water B: Bottom water C: Edge water D: Edge bottom water