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.Management Sciences
Category: Measurements
The number of categories in which physical quantities are divided is_____________?
A. 1
B. 2
C. 3
D. 4
Random errors can be reduced by_______________?
A. Taking zero correction
B. Comparing the instrument with another more accurate one
C. Taking mean of several measurements
D. All methods explained in A, B and C
The unit of force is _________ and its symbol is ______________ Which is the correct pair ?
A. Newton, n
B. Newton, N
C. newton, n
D. newton, N
In multiplication and division of measurement______________?
A. Percentage uncertainties are added
B. Absolute uncertainties are added
C. Percentage uncertainties are divided
D. Absolute uncertainties are divided
In scientific notation, numbers are expressed in________________?
A. Power of ten
B. Powers of two
C. Reciprocal
D. Decimal
Dimensional analysis is helpful for__________________?
A. Deriving a possible formula
B. Checking the homogeneity of a physical equation
C. Verification of laws
D. Only A and B are correct
The error in measurement may occur due to_________________?
A. The inexperience of a person
B. The faulty apprentice
C. Inappropriate method
D. Due to all reasons in A, B and C
Which one is the derived quantity in SI units _____________?
A. Electric current
B. Electric charge
C. Plane angle
D. Amount of substance
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