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.Management Sciences
Category: Heat and Thermodynamics
The area enclosed by the curve ABCDA for a Carnot heat engine represents the work done by Carnot engine_______________?
A. at any instant
B. averagely
C. during its operation
D. during one cycle
Boyles law helds for ideal gases in________________?
A. isochoric processes
B. isobaric processes
C. isothermal processes
D. adiabatic processes
The size of one degree of Celsius is equal to_________________?
A. One degree of Fahrenheit scale
B. 1.8 degrees of Fahrenheit scale
C. 3.2 degrees of Fahrenheit scale
D. 2.12 degrees of Fahrenheit scale
The performance of a refrigerator is described by________________?
A. efficiency
B. coefficient of performance
C. both A and B
D. not described
Metabolism is the name of a process in which energy transformation takes place within______________?
A. Heat engine
B. Human body
C. Atmosphere
D. Laboratory
Triple point of water is_____________________?
A. 273°C at 6.11 Kpa
B. 273K at 61.6 Kpa
C. 273.16°C at 0.611 Kpa
D. 273.16K at 750 Kpa
Adiabatic process is also called______________?
A. Heat exchange process
B. Heating process
C. Isentropic process
D. All of the above
According to Pascals law the pressure of gas in a vessel is_____________?
A. Different in different direction
B. Same in all direction
C. Same only along opposite directions
D. Same only along normal directions
In a clinical thermometer the mercury in the capillary tube does not contract once removed from the patient because_______________?
A. Mercury takes a long time to contract
B. The amount of mercury use is very small
C. The capillary tube has a small constriction near the bulb
D. The capillary tube is very narrow
The pressure exerted by a column of mercury 76cm high and at 0°C is called_______________?
A. 1 atmosphere
B. 1 Newton per square meter
C. 1 Pascal
D. data is insufficient
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