Multiple choice question for engineering

Set 1

1. Volume of a system is
a) Intensive property
b) Extensive property
c) Neither intensive nor Extensive
d) None of the mentioned

Answer

Answer: b [Reason:] Volume of a system depends on the amount of it present in the system.

2. A system that is open to interchange of mass with the surrounding is called
a) Open System
b) Closed System
c) Bounded System
d) None of the mentioned

Answer

Answer: a [Reason:] A system that is open to interchange of mass with the surrounding is called Open System.

3. A flow system is also known as
a) Open System
b) Closed System
c) Bounded System
d) None of the mentioned

Answer

Answer: a [Reason:] A flow system is also known as Open System.

4. A part of a system that is physically distinct and macroscopically homogeneous of fixed or variable composition is known as
a) Concentration
b) State
c) Phase
d) None of the mentioned

Answer

Answer: c [Reason:] A part of a system that is physically distinct and macroscopically homogeneous of fixed or variable composition is known as phase.

5. Which one is an example of _______ phase.
a) Solid
b) Liquid
c) Gas
d) All of the mentioned

Answer

Answer: d [Reason:] All Solid, Liquid and Gas are the example of a phase.

6. Observable characteristic of a system is called
a) Phase
b) Property
c) State
d) None of the mentioned

Answer

Answer: b [Reason:] Observable characteristic of a system is called Property.

7. Which one is an example of a property?
a) Pressure
b) Temperature
c) Volume
d) All of the mentioned

Answer

Answer: d [Reason:] Temperature, Pressure and Volume. are the observable characteristic of a system.

8. Sate of a system is specified by
a) Temperature
b) Pressure
c) Volume
d) All of the mentioned

Answer

Answer: d [Reason:] Ate of a system is specified by T, P, V etc.

9. The properties of a system are invariant in a state, called
a) Transition state
b) Steady state
c) Unsteady state
d) None of the mentioned

Answer

Answer: b [Reason:] The properties of a system are invariant in a state, that is called Steady state.

10. If the accumulation in a system is zero, the state of the system is
a) Transition state
b) Steady state
c) Unsteady state
d) None of the mentioned

Answer

Answer: b [Reason:] If the accumulation in a system is zero, the state of the system is Steady state.

Set 2

1. Volume of a system is
a) Intensive property
b) Extensive property
c) Neither intensive nor Extensive
d) None of the mentioned

Answer

Answer: b [Reason:] Volume of a system depends on the amount of it present in the system.

2. A system that is open to interchange of mass with the surrounding is called
a) Open System
b) Closed System
c) Bounded System
d) None of the mentioned

Answer

Answer: a [Reason:] A system that is open to interchange of mass with the surrounding is called Open System.

3. A flow system is also known as
a) Open System
b) Closed System
c) Bounded System
d) None of the mentioned

Answer

Answer: a [Reason:] A flow system is also known as Open System.

4. A part of a system that is physically distinct and macroscopically homogeneous of fixed or variable composition is known as
a) Concentration
b) State
c) Phase
d) None of the mentioned

Answer

Answer: c [Reason:] A part of a system that is physically distinct and macroscopically homogeneous of fixed or variable composition is known as phase.

5. Which one is an example of _______ phase.
a) Solid
b) Liquid
c) Gas
d) All of the mentioned

Answer

Answer: d [Reason:] All Solid, Liquid and Gas are the example of a phase.

6. Observable characteristic of a system is called
a) Phase
b) Property
c) State
d) None of the mentioned

Answer

Answer: b [Reason:] Observable characteristic of a system is called Property.

7. Which one is an example of a property?
a) Pressure
b) Temperature
c) Volume
d) All of the mentioned

Answer

Answer: d [Reason:] Temperature, Pressure and Volume. are the observable characteristic of a system.

8. Sate of a system is specified by
a) Temperature
b) Pressure
c) Volume
d) All of the mentioned

Answer

Answer: d [Reason:] Ate of a system is specified by T, P, V etc.

9. The properties of a system are invariant in a state, called
a) Transition state
b) Steady state
c) Unsteady state
d) None of the mentioned

Answer

Answer: b [Reason:] The properties of a system are invariant in a state, that is called Steady state.

10. If the accumulation in a system is zero, the state of the system is
a) Transition state
b) Steady state
c) Unsteady state
d) None of the mentioned

Answer

Answer: b [Reason:] If the accumulation in a system is zero, the state of the system is Steady state.

Set 3

1. Everything outside a system boundary is
a) Surrounding
b) Boundary line
c) Open system
d) Closed system

Answer

Answer: a [Reason:] Everything outside a system boundary is Surrounding.

2. The quantity of matter or region of space chosen for study is called
a) Boundary
b) Surrounding
c) System
d) None of the mentioned

Answer

Answer: c [Reason:] The quantity of matter or region of space chosen for study is called System.

3. System is enclosed by
a) Boundary
b) Surrounding
c) Layers
d) None of the mentioned

Answer

Answer: a [Reason:] A system is enclosed by Boundary.

4. A system that is not in steady state is in a state that is
a) Transient state
b) Unsteady state
c) Both a and b
d) Neither a nor b

Answer

Answer: c [Reason:] A system that is not in steady state is in a state that is Transient state or Unsteady state.

5. Unsteady state is also known as Transient state, the statement is
a) True
b) False
c) Applicable for some systems
d) None of the mentioned

Answer

Answer: a [Reason:] Unsteady state is also known as Transient state.

6. A system that does not exchange heat with the surroundings during a process is
a) Adiabatic system
b) Isobaric system
c) Isochoric system
d) Isothermal system

Answer

Answer: a [Reason:] A system that does not exchange heat with the surroundings during a process is Adiabatic system.

7. Adiabatic system is a perfectly insulated system. The statement is
a) True
b) False
c) Applicable for some systems
d) None of the mentioned

Answer

Answer: a [Reason:] Adiabatic system is a perfectly insulated system.

8. A system in which the pressure is constant during a process is
a) Adiabatic system
b) Isobaric system
c) Isochoric system
d) Isothermal system

Answer

Answer: b [Reason:] A system in which the pressure is constant during a process is an Isobaric system.

9. A system in which the volume is invariant during a process is
a) Adiabatic system
b) Isobaric system
c) Isochoric system
d) Isothermal system

Answer

Answer: c [Reason:] A system in which the volume is invariant during a process is an Isochoric system.

10. A system in which the temperature is invariant during a process is
a) Adiabatic system
b) Isobaric system
c) Isochoric system
d) Isothermal system

Answer

Answer: d [Reason:] A system in which the temperature is invariant during a process is an Isothermal system.

Set 4

1. Everything outside a system boundary is
a) Surrounding
b) Boundary line
c) Open system
d) Closed system

Answer

Answer: a [Reason:] Everything outside a system boundary is Surrounding.

2. The quantity of matter or region of space chosen for study is called
a) Boundary
b) Surrounding
c) System
d) None of the mentioned

Answer

Answer: c [Reason:] The quantity of matter or region of space chosen for study is called System.

3. System is enclosed by
a) Boundary
b) Surrounding
c) Layers
d) None of the mentioned

Answer

Answer: a [Reason:] A system is enclosed by Boundary.

4. A system that is not in steady state is in a state that is
a) Transient state
b) Unsteady state
c) Both a and b
d) Neither a nor b

Answer

Answer: c [Reason:] A system that is not in steady state is in a state that is Transient state or Unsteady state.

5. Unsteady state is also known as Transient state, the statement is
a) True
b) False
c) Applicable for some systems
d) None of the mentioned

Answer

Answer: a [Reason:] Unsteady state is also known as Transient state.

6. A system that does not exchange heat with the surroundings during a process is
a) Adiabatic system
b) Isobaric system
c) Isochoric system
d) Isothermal system

Answer

Answer: a [Reason:] A system that does not exchange heat with the surroundings during a process is Adiabatic system.

7. Adiabatic system is a perfectly insulated system. The statement is
a) True
b) False
c) Applicable for some systems
d) None of the mentioned

Answer

Answer: a [Reason:] Adiabatic system is a perfectly insulated system.

8. A system in which the pressure is constant during a process is
a) Adiabatic system
b) Isobaric system
c) Isochoric system
d) Isothermal system

Answer

Answer: b [Reason:] A system in which the pressure is constant during a process is an Isobaric system.

9. A system in which the volume is invariant during a process is
a) Adiabatic system
b) Isobaric system
c) Isochoric system
d) Isothermal system

Answer

Answer: c [Reason:] A system in which the volume is invariant during a process is an Isochoric system.

10. A system in which the temperature is invariant during a process is
a) Adiabatic system
b) Isobaric system
c) Isochoric system
d) Isothermal system

Answer

Answer: d [Reason:] A system in which the temperature is invariant during a process is an Isothermal system.

Set 5

1. The energy of a system plus surrounding can neither be created nor destroyed, Is the law of
a) Conservation of Mass
b) Conservation of Energy
c) Conservation of Momentum
d) None of the mentioned

Answer

Answer: b [Reason:] The Conservation of Energy states that the energy of a system plus surrounding can neither be created nor destroyed.

2. For an unsteady state closed system , energy balance is
a) U+25B3E = U+25B3(U + PE + KE)
b) U+25B3E = U+25B3(U + PE – KE)
c) U+25B3E = U+25B3(U – PE -KE)
d) None of the mentioned

Answer

Answer: a [Reason:] U+25B3E = U+25B3(U + PE + KE).

3. A general energy balance
a) U+25B3E = W + Q
b) U+25B3E = W – Q
c) U+25B3E = -W + Q
d) None of the mentioned

Answer

Answer: a [Reason:] U+25B3E = W + Q.

4. For a steady state closed system
a) U+25B3E > 0
b) U+25B3E < 0
c) U+25B3E = 0
d) None of the mentioned

Answer

Answer: c [Reason:] For a steady state closed system, U+25B3E = 0.

5. For a steady state closed system
a) U+25B3U > 0
b) U+25B3U < 0
c) U+25B3U = 0
d) None of the mentioned

Answer

Answer: c [Reason:] For a steady state closed system, U+25B3U = 0.

6. For a steady state closed system
a) Q + W > 0
b) Q + W < 0
c) Q + W = 0
d) None of the mentioned

Answer

Answer: c [Reason:] For a steady state closed system, U+25B3E = 0.

7. For an open system, energy balance is
a) U+25B3E = Q + W – U+25B3(H + KE + PE)
b) U+25B3E = Q + W + U+25B3(H + KE + PE)
c) U+25B3E = Q + W – U+25B3(H – KE + PE)
d) None of the mentioned

Answer

Answer: a [Reason:] For an open system, U+25B3E = Q + W – U+25B3(H + KE + PE).

8. Evaporator that concentrates a solute is an example of
a) Open, steady state process
b) Open, unsteady state process
c) Closed, steady state process
d) None of the mentioned

Answer

Answer: a [Reason:] Evaporator that concentrates a solute is Open, steady state process.

9. Turbine is an example of
a) Open, steady state process
b) Open, unsteady state process
c) Closed, steady state process
d) None of the mentioned

Answer

Answer: a [Reason:] Turbine is Open, steady state process.

10. Batch Distillation is an example of
a) Open, steady state process
b) Open, unsteady state process
c) Closed, steady state process
d) None of the mentioned

Answer

Answer: b [Reason:] Batch Distillation is Open, unsteady state process.