Entry Test MCQ :: Measurements

 

NOTE :ANSWERS ARE PRESENT AFTER 10 MCQs

1.	Which one is not a branch of physical sciences?
	A. chemistry B. astronomy C. geology D. biology

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2.	Which branch of science plays an important role in the development of technology and engineering?
	A. chemistry B. physics C. geology D. biology

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3.	The number of categories in which physical quantities are divided are
	A. one B. two C. three D. four

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4.	How many types of units are in SI?
	A. one B. two C. three D. four

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5.	In scientific notation numbers are expressed in
	A. power of ten B. powers of two C. reciprocal D. decimal

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6.	1024 can be written in scientific notation as
	A. 1.024x103 B. 2 Raised to power 10 C. 0.000976 D. 1/0.00097

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7.	Preftix deca represents
	A. 10 Raised to power 1 B. 10 Raised to power 2 C. 10 Raised to power 3 D. 10 Raised to power -1

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8.	The error in measurement may occur due to
	A. inexperience of a person B. the faulty apparantus C. inappropriate method D. due to all reasons in a, b and c

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9.	The uncertainty in a measurement may occur due to
	A. limitation of an instrument B. natural variation of the object to be measured C. inadequate of technique D. all given in a , b and c

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10.	Random errors can be reduced by
	A. taking zero correction B. comparing the instrument with another more accurate one C. taking mean of several measurement D. all methods explained in a, b and c

ANSWERS OF ABOVE TEN MCQs
1.(D) 2.(B) 3.(B) 4.(C) 5.(A) 6.(A) 7.(A) 8.(D) 9.(D) 10.(C)

11.	In any measurement the significant figures are
	A. all accurately known and all doubtful digits B. only accurately known digits C. only doubtful digits D. all accurately known digits and the first doubuful digit

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12.	A digit zero in a measurement
	A. may be significant may not significant B. always significant C. always insignificantsig D. significant only if left to a significant figure

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13.	Number of significant figures in 0.0173 are
	A. three B. four C. five D. two

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14.	Smaller the least count of the instrument more is the measurement
	A. accurate B. precise C. accurate and precise D. none of these

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15.	The dimension of force is
	A. MLT-1 B. MLT-2 C. ML-1T D. ML-1T-2

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16.	ML-1 T-2 is the dimension of
	A. force B. pressure C. momentum D. energy

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17.	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

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18.	Which equation is not dimensionally correct?
	A. E=mc2 B. Vf=Vi+at C. S=Vt2 D. S=1/2at2

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19.	SI unit of coefficient of viscosity is
	A. Kg.m.S-1 B. Kg m-1.S-1 C. Kg.m.S D. Kg-1.m-1.S-1

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20.	Three students measured length of a needle with meter rod and recorded as : (i) 0.2145m (ii) 0.21m (iii) 0.214m Which one is correct record?
	A. only (i) B. only (ii) C. only (iii) D. both (i) and (ii) ANSWERS OF ABOVE TEN MCQs 11.(D) 12.(A) 13.(A) 14.(B) 15.(B) 16.(B) 17.(D) 18.(C) 19.(B) 20.(C)