Question 1

According to kinetic theory of heat

Accepted Answer

A) temperature should rise during boiling 
B) temperature should fall during freezing 
C) at low temperature all bodies are in solid state 
D) at absolute zero there is absolutely no vibration ofmolecules 
A) temperature should rise during boiling 
B) temperature should fall during freezing 
C) at low temperature all bodies are in solid state 
D) at absolute zero there is absolutely no vibration ofmolecules D

Question 2

If all the variables of a stream are independent of time it is said to be in

Accepted Answer

A) steady flow 
B) unsteady flow 
C) uniform flow 
D) closed flow 
A) steady flow 
B) unsteady flow 
C) uniform flow 
D) closed flow A

Question 3

The unit of energy in SI units is

Accepted Answer

A) joule (j) 
B) joule metre (jm) 
C) watt (w) 
D) joule/metre (j/m) 
A) joule (j) 
B) joule metre (jm) 
C) watt (w) 
D) joule/metre (j/m) A

Question 4

A definite area or space where some thermodynamic process takes place is known as

Accepted Answer

A) thermodynamic system 
B) thermodynamic cycle 
C) thermodynamic process 
D) thermodynamic law 
A) thermodynamic system 
B) thermodynamic cycle 
C) thermodynamic process 
D) thermodynamic law

Question 5

The value of one bar (in SI units) is equal to

Accepted Answer

A) 100 n/m2 
B) 1000 n/m2 
C) 1×10? n/m2 
D) 1×10? n/m2 
A) 100 n/m2 
B) 1000 n/m2 
C) 1×10? n/m2 
D) 1×10? n/m2

Question 6

The temperature at which the volume of a gas becomes zero is called

Accepted Answer

A) absolute scale of temperature 
B) absolute zero temperature 
C) absolute temperature 
D) none of the above 
A) absolute scale of temperature 
B) absolute zero temperature 
C) absolute temperature 
D) none of the above

Question 7

Which of the following is the extensive property of a thermodynamic system

Accepted Answer

A) pressure 
B) volume 
C) temperature 
D) density 
A) pressure 
B) volume 
C) temperature 
D) density

Question 8

A control volume refers to

Accepted Answer

A) a fixed region in space 
B) a specified mass 
C) an isolated system 
D) a reversible process only 
A) a fixed region in space 
B) a specified mass 
C) an isolated system 
D) a reversible process only

Question 9

The process or systems that do not involve heat are called

Accepted Answer

A) isothermal processes 
B) equilibrium processes 
C) adiabatic processes 
D) steady processes 
A) isothermal processes 
B) equilibrium processes 
C) adiabatic processes 
D) steady processes

Question 10

An isolated system

Accepted Answer

A) is a specified region where transfer of energy and/or mass take place 
B) is a region of constant mass & only energy is allowed to cross the boundaries 
C) cannot transfer either energy or mass to or from the surroundings 
D) is one in which mass within the system is not necessarily constant 
A) is a specified region where transfer of energy and/or mass take place 
B) is a region of constant mass & only energy is allowed to cross the boundaries 
C) cannot transfer either energy or mass to or from the surroundings 
D) is one in which mass within the system is not necessarily constant

Question 11

The condition for the reversibility of a cycle is

Accepted Answer

A) the pressure & temperature of the working substance must not differ, appreciably, from those of 
B) all the processes, taking place in the cycle of operation, must be extremely slow 
C) the working parts of the engine must be friction free 
D) all of the above 
A) the pressure & temperature of the working substance must not differ, appreciably, from those of 
B) all the processes, taking place in the cycle of operation, must be extremely slow 
C) the working parts of the engine must be friction free 
D) all of the above

Question 12

A series of operations, which take place in a certain order & restore the initial condition is known as

Accepted Answer

A) reversible cycle 
B) irreversible cycle 
C) thermodynamic cycle 
D) none of the above 
A) reversible cycle 
B) irreversible cycle 
C) thermodynamic cycle 
D) none of the above

Question 13

Steady flow process requires that

Accepted Answer

A) conditions do not change with time at any point 
B) conditions are the same at adjacent points at anyinstant 
C) conditions change steadily with the time 
D) is constant 
A) conditions do not change with time at any point 
B) conditions are the same at adjacent points at anyinstant 
C) conditions change steadily with the time 
D) is constant

Question 14

Which of the following is correct?

Accepted Answer

A) absolute pressure= guage pressure+ atmosphericpressure 
B) guage pressure= absolute pressure + atmosphericpressure 
C) atmospheric pressure= absolute pressure+ guagepressure 
D) absolute pressure= guage pressure-atmospheric pressure 
A) absolute pressure= guage pressure+ atmosphericpressure 
B) guage pressure= absolute pressure + atmosphericpressure 
C) atmospheric pressure= absolute pressure+ guagepressure 
D) absolute pressure= guage pressure-atmospheric pressure

Question 15

A system comprising a single phase is called a

Accepted Answer

A) closed system 
B) open system 
C) isolated system 
D) homogeneous system 
A) closed system 
B) open system 
C) isolated system 
D) homogeneous system

Question 16

One watt is equal to

Accepted Answer

A) 1 nm/s 
B) 1n/min 
C) 10 n/s 
D) 100 nm/s 
A) 1 nm/s 
B) 1n/min 
C) 10 n/s 
D) 100 nm/s

Question 17

An open system is one in which

Accepted Answer

A) heat & work cross the boundary of the system, but the mass of the working substance does not 
B) mass of working substance crosses the boundary of the system but the heat & work do not 
C) both the heat & work as well as mass of the working substance cross the boundary of the system 
D) neither the heat & work nor the mass of the working substances cross the boundary of the system 
A) heat & work cross the boundary of the system, but the mass of the working substance does not 
B) mass of working substance crosses the boundary of the system but the heat & work do not 
C) both the heat & work as well as mass of the working substance cross the boundary of the system 
D) neither the heat & work nor the mass of the working substances cross the boundary of the system

Question 18

Which of the following is not a property of the system

Accepted Answer

A) temperature 
B) pressure 
C) specific volume 
D) heat 
A) temperature 
B) pressure 
C) specific volume 
D) heat

Question 19

One joule (J) is equal to

Accepted Answer

A) 1 nm 
B) knm 
C) 10 nm/s 
D) 10 knm/s 
A) 1 nm 
B) knm 
C) 10 nm/s 
D) 10 knm/s

Question 20

The first law of thermodynamics for steady flow

Accepted Answer

A) accounts for all energy entering & leaving a controlvolume 
B) is an energy balance for a specified mass of fluid 
C) is an expression of the conservation of linearmomentum 
D) is primarily concerned with heat transfer 
A) accounts for all energy entering & leaving a controlvolume 
B) is an energy balance for a specified mass of fluid 
C) is an expression of the conservation of linearmomentum 
D) is primarily concerned with heat transfer

According to kinetic theory of heat

If all the variables of a stream are independent of time it is said to be in

The unit of energy in SI units is

A definite area or space where some thermodynamic process takes place is known as

The value of one bar (in SI units) is equal to

The temperature at which the volume of a gas becomes zero is called

Which of the following is the extensive property of a thermodynamic system

A control volume refers to

The process or systems that do not involve heat are called

An isolated system

The condition for the reversibility of a cycle is

A series of operations, which take place in a certain order & restore the initial condition is known as

Steady flow process requires that

Which of the following is correct?

A system comprising a single phase is called a

One watt is equal to

An open system is one in which

Which of the following is not a property of the system

One joule (J) is equal to

The first law of thermodynamics for steady flow

Thermodynamics: Concepts and Laws

Thermodynamics and Entropy

Thermodynamics Laws, Processes, and Efficiency

Gas Laws and Thermodynamics

Thermodynamics and Gas Laws

Thermodynamics

Steam Power Plant and Rankine Cycle

Thermodynamics and Rankine Cycle

Energy and Thermodynamics

Concepts of Heat Transfer, Irreversibility, and Thermodynamic Properties

Thermodynamics and Heat Transfer

Thermodynamics and Entropy Principles

Thermodynamics and Properties of Substances

Rankine Cycle and Properties of Steam

Gas Laws and Properties

Thermodynamics and Gas Mixtures: Equations, Properties, and Applications

Thermodynamics and Temperature Scales

Thermodynamics and the Second Law: Efficiency, Entropy, and Exergy

Thermodynamics and Gas Properties

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Exam 1: Thermodynamics and Properties of Systems

According to kinetic theory of heat

If all the variables of a stream are independent of time it is said to be in

The unit of energy in SI units is

A definite area or space where some thermodynamic process takes place is known as

The value of one bar (in SI units) is equal to

The temperature at which the volume of a gas becomes zero is called

Which of the following is the extensive property of a thermodynamic system

A control volume refers to

The process or systems that do not involve heat are called

An isolated system

The condition for the reversibility of a cycle is

A series of operations, which take place in a certain order & restore the initial condition is known as

Steady flow process requires that

Which of the following is correct?

A system comprising a single phase is called a

One watt is equal to

An open system is one in which

Which of the following is not a property of the system

One joule (J) is equal to

The first law of thermodynamics for steady flow

Thermodynamics: Concepts and Laws

Thermodynamics and Entropy

Thermodynamics Laws, Processes, and Efficiency

Gas Laws and Thermodynamics

Thermodynamics and Gas Laws

Thermodynamics

Steam Power Plant and Rankine Cycle

Thermodynamics and Rankine Cycle

Energy and Thermodynamics

Concepts of Heat Transfer, Irreversibility, and Thermodynamic Properties

Thermodynamics and Heat Transfer

Thermodynamics and Entropy Principles

Thermodynamics and Properties of Substances

Rankine Cycle and Properties of Steam

Gas Laws and Properties

Thermodynamics and Gas Mixtures: Equations, Properties, and Applications

Thermodynamics and Temperature Scales

Thermodynamics and the Second Law: Efficiency, Entropy, and Exergy

Thermodynamics and Gas Properties

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