Chemical Process Calculation Multiple Choice Questions & Answers (MCQs) focuses on “System of Units”.
1. Below given statement is
Fundamental dimensions are those that can`t be measured independently
a) True
b) False
c) Not a standard definition
d) None of the mentioned
Answer: b
Clarification: Fundamental dimensions are those that can be measured independently.
2. ________ dimensions are those that can be developed in terms of fundamental dimensions.
a) Fundamental
b) Derived
c) Unit
d) None of the mentioned
Answer: b
Clarification: Derived dimensions are those that can be developed in terms of fundamental dimensions.
3. Below given statements are
A. Fundamental units are not those that can be measured independently
B. Derived units are those that can be developed in terms of fundamental units
The number of true statement is/are
a) 0
b) 1
c) 2
d) None of the mentioned
Answer: b
Clarification: Fundamental units are not those that can be measured independently.
4. _________ are the general expression of a characteristics of measurement.
a) Units
b) Dimensions
c) Neither unit nor dimension
d) None of the mentioned
Answer: b
Clarification: Dimensions are the general expression of a characteristics of measurement.
5. ___________ are the means of explicitly expressing the dimensions.
a) Units
b) Dimensions
c) Significant figures
d) None of the mentioned
Answer: a
Clarification: Units are the means of explicitly expressing the dimensions.
6. Which one is not a dimension?
a) Length
b) Mass
c) Time
d) Kelvin
Answer: d
Clarification: Kelvin is a unit, not dimension.
7. Which one is a unit?
a) Feet
b) Second
c) Square meter
d) All of the mentioned
Answer: d
Clarification: All are the units of length, time and area respectively.
8. When quantities with units are added or subtracted, they need to be expressed in the ______ unit.
a) Different
b) Same
c) Derived
d) Fundamental
Answer: b
Clarification: When quantities with units are added or subtracted, they need to be expressed in the same unit.
9. Jule/Kg.Kelvin is a
a) SI unit
b) AE unit
c) Neither SI nor AE unit
d) None of the mentioned
Answer: a
Clarification: Jule/Kg.Kelvin is a SI unit of heat capacity.
10. _________ should not be used in symbols for compound units.
a) Parentheses
b) Hyphens
c) Exponents
d) None of the mentioned
Answer: b
Clarification: Hyphens should not be used in symbols for compound units.