ECAT/ECAT Physics Measurements Mcqs Questions Sample Test,Sample questions

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Question: 
  Number of significant figures in 0.0173 are

1.three

2.four

3.five

4.two

Posted Date:-2021-08-31 09:52:05

Question: 
  Steradian is the SI unit of

1.plane angle

2.solid angle

3.both plane angle and solid angle

4.neither plane angle nor solid angle

Posted Date:-2021-08-31 09:52:05

Question: 
  The unmber of significant figures in the length of a bar 6200mm measured by meter rod are

1.four

2.three

3.two

4.none of these

Posted Date:-2021-08-31 09:52:05

Question: 
  Unit of G is?

1.Nm2Kg2

2.Nm2Kg

3.Nm2Kg-2

4.none

Posted Date:-2021-08-31 09:52:05

Question: 
  Which of the following is not a correct representation method for prefixes

1.1mm

2.10km

3.1000um

4.both (a) and (b)

Posted Date:-2021-08-31 09:52:05

Question: 
 1024 can be written in scientific notation as

1.1.024x103

2.2 Raised to power 10

3.0.000976

4.1/0.00097

Posted Date:-2021-08-31 09:52:05

Question: 
 An ideal standard of measurement of a base quantity has characteristics

1.accessible

2.invariable

3.transportable

4.only a and b are correct

Posted Date:-2021-08-31 09:52:05

Question: 
 Dimensional analysis is helpful for

1.deriving a possible formula

2.checking the homogeneity of a physical equation

3.verification of laws

4.only a and b are correct

Posted Date:-2021-08-31 09:52:05

Question: 
 How many types of units are in SI?

1.one

2.two

3.three

4.four

Posted Date:-2021-08-31 09:52:05

Question: 
 In any measurement the significant figures are

1.all accurately known and all doubtful digits

2.only accurately known digits

3.only doubtful digits

4.all accurately known digits and the first doubuful digit

Posted Date:-2021-08-31 09:52:05

Question: 
 In multiplication and division of measurement

1.percentage uncertainties are added

2.absolute uncertainties are added

3.percentage uncertainties are divided

4.absolute uncertainties are divided

Posted Date:-2021-08-31 09:52:05

Question: 
 In scientific notation numbers are expressed in

1.power of ten

2.powers of two

3.reciprocal

4.decimal

Posted Date:-2021-08-31 09:52:05

Question: 
 One pico stands for

1.10 raised to power -15

2.10 raised to power -12

3.10 raised to power -9

4.10 raised to power -6

Posted Date:-2021-08-31 09:52:05

Question: 
 The dimension of force is

1.MLT-1

2.MLT-2

3.ML-1T

4.ML-1T-2

Posted Date:-2021-08-31 09:52:05

Question: 
 The error in measurement may occur due to

1.inexperience of a person

2.the faulty apparantus

3.inappropriate method

4.due to all reasons in a b and c

Posted Date:-2021-08-31 09:52:05

Question: 
 The number 76.85 is rounded off upto two significant figures as

1.76.8

2.77

3.76.9

4.none of these

Posted Date:-2021-08-31 09:52:05

Question: 
 The uncertainty in a measurement may occur due to

1.limitation of an instrument

2.natural variation of the object to be measured

3.inadequate of technique

4.all given in a b and c

Posted Date:-2021-08-31 09:52:05

Question: 
 To reduce the uncertainty in the timing experiment

1.highly precise instrument

2.conduct at room temperature

3.count more number of vibration

4.both a and c

Posted Date:-2021-08-31 09:52:05

Question: 
 Which one is the dimensionally correct equation?

1.f=vt

2.S=Vit+1/2at2

3.V=St

4.V=f/t

Posted Date:-2021-08-31 09:52:05

Question: 
A digit zero in a measurement

1.may be significant may not significant

2.always significant

3.always insignificantsig

4.significant only if left to a significant figure

Posted Date:-2021-08-31 09:52:05

Question: 
Absolute uncertainty in a measurement depends upon

1.magnitude of the measurement

2.least count of the instrument

3.percentage error in the measurement

4.all of a b and c

Posted Date:-2021-08-31 09:52:05

Question: 
How many main frontiers of fundamental science?

1.1

2.2

3.3

4.4

Posted Date:-2021-08-31 09:52:05

Question: 
ML-1 T-2 is the dimension of

1.force

2.pressure

3.momentum

4.energy

Posted Date:-2021-08-31 09:52:05

Question: 
One light year is equal to

1.9.5x1015m

2.9.5x1015sec

3.9.5x1015Km

4.9.5x1015cm

Posted Date:-2021-08-31 09:52:05

Question: 
Preftix deca represents

1.10 Raised to power 1

2.10 Raised to power 2

3.10 Raised to power 3

4.10 Raised to power -1

Posted Date:-2021-08-31 09:52:05

Question: 
Random errors can be reduced by

1.taking zero correction

2.comparing the instrument with another more accurate one

3.taking mean of several measurement

4.all methods explained in a b and c

Posted Date:-2021-08-31 09:52:05

Question: 
SI unit of coefficient of viscosity is

1.Kg.m.S-1

2.Kg m-1.S-1

3.Kg.m.S

4.Kg-1.m-1.S-1

Posted Date:-2021-08-31 09:52:05

Question: 
Smaller the least count of the instrument more is the measurement

1.accurate

2.precise

3.accurate and precise

4.none of these

Posted Date:-2021-08-31 09:52:05

Question: 
The number of categories in which physical quantities are divided are

1.one

2.two

3.three

4.four

Posted Date:-2021-08-31 09:52:05

Question: 
The number of significant figures in 5.400 are

1.three

2.five

3.two

4.none

Posted Date:-2021-08-31 09:52:05

Question: 
The unit of force is _________ and its symbol is __________. Which is the correct pair?

1.Newton n

2.Newton N

3.newton n

4.newton N

Posted Date:-2021-08-31 09:52:05

Question: 
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?

1.only (i)

2.only (ii)

3.only (iii)

4.both (i) and (ii)

Posted Date:-2021-08-31 09:52:05

Question: 
Total uncertainty in result obtained from the subtraction of two measurement is equal to

1.sum of their absolute uncertainties

2.difference of their absolute uncertainties

3.verification of laws

4.division of their absolute uncertainties

Posted Date:-2021-08-31 09:52:05

Question: 
Which branch of science plays an important role in the development of technology and engineering?

1.chemistry

2.physics

3.geology

4.biology

Posted Date:-2021-08-31 09:52:05

Question: 
Which equation is not dimensionally correct?

1.E=mc2

2.Vf=Vi+at

3.S=Vt2

4.S=1/2at2

Posted Date:-2021-08-31 09:52:05

Question: 
Which one is not a branch of physical sciences?

1.chemistry

2.astronomy

3.geology

4.biology

Posted Date:-2021-08-31 09:52:05

Question: 
Which one is the correct representation of the unit of pressure?

1.Newton/Meter2

2.newton/meter2

3.Newton/meter2

4.newton/Meter2

Posted Date:-2021-08-31 09:52:05

Question: 
Which one is the derived quantity in SI units?

1.electric current

2.electric charge

3.plane angle

4.amount of substance

Posted Date:-2021-08-31 09:52:05

Question: 
Which one is the highest power multiple?

1.giga

2.beta

3.mega

4.deca

Posted Date:-2021-08-31 09:52:05

Question: 
Zero error of the instrument is a type of

1.random error

2.personal error

3.systematic error

4.classified error

Posted Date:-2021-08-31 09:52:05

Posted on by R4R Team

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