# Thermodynamics objective questions and answers pdf

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## Top Thermodynamics Objective Type Questions And Answers

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## Thermodynamics MCQ - Multiple Choice Question and Answer

The safety valve at superheater as compared to drum safety valve setting is set at a higher value b lower value c same value d any value e none answwers the above. The volumetirc dpf of a compressor is calculated on the basis of a volume of air inhaled at working conditions b volume of air inhaled at N. Skip to content Thermodynamics Multiple choice Questions :- 1. Duplex feed pumps are used in small steam boilers.

The ideal efficiency of simple gas turbine cycle depends on a pressure ratio b maximum cycle temperature c minimum cycle temperature d all of the above e none of the above! Coke is produced by a pulverising coal in inert atmosphere b heating wood in a limited supply of air at temperatures below GC c strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel d binding the pulverised coal into brick-etts e enriching carbon in the coal. The size of the reactor is said to be critical when a chain reaction can be initiated b it becomes uncontrollable c it explodes d it produces no power e it produces tremendous power! Electrical Engineering Quiz.

The students those are preparing for the Govt. Which of the following variables controls the physical properties of a perfect gas. Which of the following laws is applicable for the behavior of a perfect gas.

Ans: b. Leave a Reply Cancel reply Your email address will not be published! Propulsive efficiency is defined as ratio of a qjestions power and fuel energy b engine output and propulsive power c propulsive power and fuel input d thrust power and propulsive power e none of the above. At very low temperature, the melting and boiling temperatures become equal.

Question 6: Which of the following is NOT the heat engine thermodynamicw. A closed system is one in which a mass does not cross boundaries of the system, though energy may do so b mass crosses the boundary but not the energy c neither mass nor energy crosses the boundaries of the system d both energy and mass cross the boundaries of the system e thermodynamic reactions take place. Method of governing used in diesel engine is a quantity governing b quality governing c combined governing d partial governing e nit and miss governing. Surging phenomenon in centrifugal com-pressor depends on objedtive mass flow rate b pressure ratio c change in load d stagnation pressure at the outlet e all of the above.

Which of the following variables controls the physical properties of a perfect Ans: c 8! Which of the following engines can work on very lean mixture a S. Actual compression curve is a same as isothermal b same as thetmodynamics c better than isothermal and adiabatic d in between isothermal and adiabatic e none of the above.

Total answerw of a substance is also known as a internal energy b entropy c thermal capacity d enthalpy e thermal conductance. For an irreversible gas turbine cycle, the efficiency and work ratio both depend on a pressure ratio alone b maximum cycle temperature alone c minimum cycle temperature alone d both pressure ratio and maximum cycle temperature e none of the above. Locomotive boiler is of the following type a multitubular b horizontal c internally fired d mobile e all of the above.

Plutonium is produced a as basic raw material b by neutron irradiation of Uz c by neutron irradiation of throium d artificially e in high capacity furnace. C engines is a higher b lower c same d depends on on odier considerations e unpredictable. So, these are the questions cover from Thermodynamics Topic. Surging phenomenon in centrifugal com-pressor depends on a mass flow rate b pressure ratio c change in load d stagnation pressure at the outlet e all of objecfive above. The function of a fuel pump in a petrol pump is to a inject fuel in cylinder b pcf fuel when carburettor fails c pump fuel so that it reaches carburettor to improve thermal efficiency d does not exist.

Fundamentals 2. Which of the following laws is applicable for the behavior of a perfect gas A. The unit of temperature in S. The unit of mass in S. The unit of time in S.

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Stoichiometric quantity of air is the a air present in atmosphere at NTP conditions b air required for complete combustion of fuel with no excess air c air required for optimum combustion so as to have reasonable excess air d air required to convert CO into C02 e air required to form an explosive mixture. Kelvin Planck's law deals with a conservation objectice heat b conservation of work c conversion of heat into work d conversion fo work into heat e conservation of mass. Milan Rout? For the same size and weight, a two stroke engine as compared to four stroke engine will generate power a about twice b about 0.

A petrol engine can also work on such a lean ratio provided a it is properly designed b best quality fuel is used c can not work as it is impossible d flywheel size is proper objecgive engine cooling is stopped. Solid injection in I. A diesel engine as compared to petrol engine both running ar rated load is a more efficient answeers less efficient c equally efficient d unperdictable e other tjermodynamics will decide it. Pick up the wrong statement a large gas turbines employ axial flow compressors b axial flow compressors are more stable than centrifugal type compressors but not as efficient c axial flow compressors have high capacity and efficiency d axial flow compressors have instability region of operation e centrifugal compressors are used mainly on low flow pressure ratio gas turbines.

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