1.A system in which one or more than one conditions vary with time is called
a) Open system
b) Closed system
c) Steady state system
d) Unsteady state system
Explanation: A system in which one or more than one conditions vary with time is called Unsteady state system.
2. Unsteady state system is also known as
a) Open system
b) Closed system
c) Transient system
d) None of the mentioned
Explanation: Unsteady state system is also known as transient system.
3. A ____________ is one in which material enters and leaves the system without interruption.
a) Continuous process
b) Batch process
c) Semi-batch process
d) None of the mentioned
Explanation: A continuous is one in which material enters and leaves the system without interruption.
4. ______________is a process in which material is neither added nor removed from a process during operation.
a) Continuous process
b) Batch process
c) Semi-batch process
d) None of the mentioned
Explanation: Batch process is a process in which material is neither added nor removed from a process during operation
5. Soup preparation is an example of _______where nothing is added in between the process.
a) Continuous process
b) Batch process
c) Semi-batch process
d) None of the mentioned
Explanation: Batch process treats a fixed amount of material.
6. A process in which material enters the system but product is not removed during operation is called
a) Continuous process
b) Batch process
c) Semi-batch process
d) None of the mentioned
Explanation: A process in which material enters the system but product is not removed during operation is called semi-batch process.
7. The depletion of a component in a system due to chemical reaction is _________
a) Consumption
b) Degradation
c) Decomposition
d) None of the mentioned
Explanation: The depletion of a component in a system due to chemical reaction is consumption.
8.Find out the incorrect statement
a) Accumulation for a process can be negative
b) Accumulation for a process can be positive
c) Accumulation for a process can be zero
d) None of the mentioned
Explanation: Accumulation for a process can be negative, positive and zero.
9.A volatile solid material is placed in a tube and vacuum is created inside the tube. If the tube is heated and the solid vaporizes the weight of the material + tube will
a) Decrease
b) Increase
c) Remains same
d) None of the mentioned
Explanation: Apply mass conservation.
10. The following statement is
If the overall flows in and out for over a time period for several batches are considered, and local batches ignore, the process can be treated as continuous.
a) False
b) True
c) Depends on the process
d) None of the mentioned
Explanation: Over a time period for several batches, a process behaves like a continuous process if local batches are neglected.