Engineering Thermodynamics The expansion ratio (r) is the ratio of (where v1 = Volume at the beginning of expansion, and v2 = Volume at the end of expansion) v1/v2 v2/v1 (v1 + v2)/v1 (v1 + v2)/v2 v1/v2 v2/v1 (v1 + v2)/v1 (v1 + v2)/v2 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Absolute zero pressure will occur When molecular momentum of the system becomes zero At sea level Under vacuum conditions At a temperature of 273°K When molecular momentum of the system becomes zero At sea level Under vacuum conditions At a temperature of 273°K ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The door of a running refrigerator inside a room was left open. Which of the following statements is correct? The room will be gradually warmed up The room will be cooled to the temperature inside the refrigerator The room will be cooled very slightly The temperature of the air in room will remain unaffected The room will be gradually warmed up The room will be cooled to the temperature inside the refrigerator The room will be cooled very slightly The temperature of the air in room will remain unaffected ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The ___ is obtained when carbonization of coal is carried out at 500° to 700° C. Bituminous coal Pulverized coal Soft coal Hard coal Bituminous coal Pulverized coal Soft coal Hard coal ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The value of 1 mm of Hg is equal to 13.33 N/m2 1.333 N/m2 133.3 N/m2 1333 N/m2 13.33 N/m2 1.333 N/m2 133.3 N/m2 1333 N/m2 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics A process of heating crude oil to a high temperature under a very high pressure to increase the yield of lighter distillates, is known as Fractional distillation Full distillation Carbonization Cracking Fractional distillation Full distillation Carbonization Cracking ANSWER DOWNLOAD EXAMIANS APP
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