a) study of the relationship between heat and other forms of energy
b) study of the conversion of chemical energy to other forms of energy
c) study of the relationship between mechanical energy to other forms of energy
d) study of the conversion of mechanical energy to other forms of energy
Q.2.
Which of the following is a branch of thermodynamics?
a) Equilibrium thermodynamics
b) Classical thermodynamics
c) Chemical thermodynamics
d) All of the mentioned
Q.3.
Which of the following is a thermodynamics law?
a) Zeroth law of thermodynamics
b) Faraday’s Law of thermodynamics
c) Ideal Gas Law of thermodynamics
d) Boyle’s Law of thermodynamics
Q.4.
Heat does not spontaneously flow from a colder body to a hotter one. Which of the following thermodynamics law states this?
a) Zeroth law of thermodynamics
b) First law of thermodynamics
c) Second law of thermodynamics
d) Third law of thermodynamics
Q.5.
Which of the following is an application of thermodynamics?
a) Refrigerators
b) Gas compressors
c) Power plants
d) All of the mentioned
Q.6.
Which of the following is a type of thermodynamic system?
a) Open system
b) Closed system
c) Thermally isolated system
d) All of the mentioned
Q.7.
Which of the following occurs without a change in the internal energy?
a) Isochoric process
b) Isenthalpic process
c) Steady-state process
d) Isenthalpic process
Q.8.
Which of the following thermodynamic law gives the concept of enthalpy?
a) First law of thermodynamics
b) Second law of thermodynamics
c) Third law of thermodynamics
d) Fourth law of thermodynamics
Q.9.
What is the value of the absolute thermodynamic temperature scale?
a) 3K
b) 0K
c) 1K
d) 4K
Q.10.
Which of the following follows the Carnot theorem?
a) Heat engines
b) Gas turbine engines
c) Gas compressors
d) All of the mentioned
Q.11.
If a piston/cylinder with a cross-sectional size of 0.m2 is resting on the stops, what should the water pressure be to lift the piston with an outside pressure ofkPa?
a) 218kPa
b) 168kPa
c) 198kPa
d) 318kPa
Q.12.
At 100°C, a sealed rigid vessel with a volume of 1 m3 and 2 kg of water has a volume of 1 mThe vessel has now been warmed up. What pressure should a safety pressure valve be adjusted to achieve a maximum temperature of 200°C if one is installed?
a) 431.3 kPa
b) 231.3 kPa
c) 831.3 kPa
d) 131.3 kPa
Q.13.
When the diver is 8 meters below the surface, the pressure gauge on his air tank readskPa. The gauge pressure will be 0 at what depth?
a) 44.118 m
b) 24.118 m
c) 34.118 m
d) None of the mentioned
Q.14.
Which of the following is the standard fixed point of thermometry?
a) The steam point
b) The triple point of water
c) The ice point
d) All of the mentioned
Q.15.
Which of the following is chosen as the standard thermometric substance?
a) Liquid
b) Solid
c) Gas
d) None of the mentioned
Q.16.
What is the magnitude of mechanical work?
a) product of the force and distance travelled perpendicular to the force
b) product of the force and distance travelled parallel to the force
c) sum of the force and distance travelled perpendicular to the force
d) sum of the force and distance travelled parallel to the force
Q.17.
Which of the following gives the Mechanical efficiency of the engine?
a) IP/BP
b) 1/(BP*IP)
c) (BP*IP)
d) BP/IP
Q.18.
Which of the following type of motion does Shaft uses to do work?
a) vertical motion
b) horizontal motion
c) rotational motion
d) none of the mentioned
Q.19.
A refrigerator with a 2 kW motor for powering the compressor giveskJ of cooling to the refrigerated space duringminutes of operation in a thermally insulated kitchen. Calculate the change in internal energy of the kitchen if the condenser coil behind the refrigerator rejectskJ of heat to the kitchen over the same time period.
a) 3600 kJ
b) 2400 kJ
c) 4800 kJ
d) none of the mentioned
Q.20.
At 15°C, a steel pot with a 5 mm thick bottom is filled with liquid water (conductivityW/m K). The pot has acm radius and is now placed on a stove with a heat transmission ofW. Calculate the temperature on the bottom of the outer pot assuming the inner surface is 15°C.
a) 15.8°C
b) 16.8°C
c) 18.8°C
d) 19.8°C
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