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Latest ICAR AIEEA UG PCA Exam Question (Objective Questions), MCQ in English

Subjects : Physics, Chemistry, Agriculture

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Physics

Question 1Single Answer
Temperature can be expressed as derived quantity in terms of
  1. A
    length and mass
  2. B
    mass and time
  3. C
    length, mass and time
  4. D
    None of these
Question 2Single Answer
Electron volt is a unit of
  1. A
    potential difference
  2. B
    charge
  3. C
    energy
  4. D
    capacity
Question 3Single Answer
Dimensions of impulse are
  1. A
    [MLT –1]
  2. B
    [MLT²]
  3. C
    [MT–2]
  4. D
    [ML–1T–3]
Question 4Single Answer
Potential is measured in
  1. A
    joule/coulomb
  2. B
    watt/coulomb
  3. C
    newton–second
  4. D
    None of these
Question 5Single Answer
One Nanometer is equal to
  1. A
    10–9m
  2. B
    10–6m
  3. C
    10–10m
  4. D
    10–3m
Question 6Single Answer
Maxwell is the unit of
  1. A
    magnetic susceptibility
  2. B
    intensity of Magnetisation
  3. C
    magnetic Flux
  4. D
    magnetic Permeability
Question 7Single Answer
Which of the following is derived physical quantity ?
  1. A
    Mass
  2. B
    Velocity
  3. C
    Length
  4. D
    Time
Question 8Single Answer
What are the units of magnetic permeability ?
  1. A
    Wb A–1 m–1
  2. B
    Wb–1 Am
  3. C
    Wb A m–1
  4. D
    Wb A–1 m
Question 9Single Answer
The dimensions of pressure gradient are
  1. A
    [ML–2 T–2]
  2. B
    [ML–2 T–1]
  3. C
    [ML–1 T–1]
  4. D
    [ML–1 T–2]
Question 10Single Answer
The dimensions of Rydberg's constant are
  1. A
    [M0L–1T]
  2. B
    [MLT–1]
  3. C
    [M0 L–1T0]
  4. D
    [ML0 T2]
Question 11Single Answer
'Farad' is the unit of
  1. A
    resistance
  2. B
    conductance
  3. C
    capacitance
  4. D
    inductance
Question 12Single Answer
S.I. unit of surface tension is
  1. A
    degree/cm
  2. B
    N/m
  3. C
    N/m²
  4. D
    Nm
Question 13Single Answer
Which one of the following pairs does not have the same dimension ?
  1. A
    Potential energy and Kinetic energy
  2. B
    Density and specific gravity
  3. C
    Focal length and height
  4. D
    Gravitational force and frictional force
Question 14Single Answer
Which one of the following physical quantity has the same unit as that of pressure ?
  1. A
    Angular momentum
  2. B
    Stress
  3. C
    Strain
  4. D
    Work
Question 15Single Answer
The symbol of SI unit of inductance is H. It stands for
  1. A
    Holm
  2. B
    Halogen
  3. C
    Henry
  4. D
    Hertz
Question 16Single Answer
Light year is a measure of
  1. A
    time
  2. B
    distance
  3. C
    total amount of light falling on the Earth in a year
  4. D
    average intensity of light falling on the Earth in a year
Question 17Single Answer
Which one of the following is not a dimension less quantity ?
  1. A
    Strain
  2. B
    Relative density
  3. C
    Frequency
  4. D
    Angle
Question 18Single Answer
The dimensions of universal gas constant are
  1. A
    [L² M¹ T–2 K–1]
  2. B
    [L¹ M² T–2 K–1]
  3. C
    [L¹ M¹ T–2 K–1]
  4. D
    [L² M² T–2 K–1]
Question 19Single Answer
The dimensions of magnetic moment are
  1. A
    [L²A¹]
  2. B
    [L²A–1]
  3. C
    [L²/A³]
  4. D
    [LA²]
Question 20Single Answer
The dimensions of Wien's constant are
  1. A
    [ML0TK]
  2. B
    [M0LT0K]
  3. C
    [M0L0TK]
  4. D
    [MLTK]
Question 21Single Answer
The dimensional formula of wave number is
  1. A
    [M0L0T–1]
  2. B
    [M0L–1T0]
  3. C
    [M–1 L–1 T0]
  4. D
    [M0 L0 T0]
Question 22Single Answer
The dimensional of Hubble ‘s wave number is
  1. A
    [T–1]
  2. B
    [M0L0T–2]
  3. C
    [MLT4]
  4. D
    [MT–1]
Question 23Single Answer
The dimensions of solar constant is
  1. A
    [M0L0T0]
  2. B
    [MLT–2]
  3. C
    [ML²T–2]
  4. D
    MT–3
Question 24Single Answer
The dimensional formula for entropy is
  1. A
    [MLT–2K¹]
  2. B
    [ML2 T-2]
  3. C
    [ML²T–2K–1]
  4. D
    [ML²T–2K]
Question 25Single Answer
Dimension of specific heat are
  1. A
    [ML² T–2 K]
  2. B
    [ML² T–2 K–1]
  3. C
    [ML²T²K–1]
  4. D
    [L²T–2K–2]
Question 26Single Answer
The physical quantity which has the dimensional formula [M¹T–3] is
  1. A
    surface tension
  2. B
    solar constant
  3. C
    density
  4. D
    compressibility
Question 27Single Answer
Which one of the following elements is used as a timekeeper in atomic clocks ?
  1. A
    Potassium
  2. B
    Caesium
  3. C
    Calcium
  4. D
    Magnesium
Question 28Single Answer
Which one of the following is the value of one nanometer ?
  1. A
    10–7 cm
  2. B
    10–6 cm
  3. C
    10–4 cm
  4. D
    10–3 cm
Question 29Single Answer
What is the unit of pressure ?
  1. A
    Newton/sq. meter
  2. B
    Newton–meter
  3. C
    Newton
  4. D
    Newton/meter
Question 30Single Answer
The unit of pressure is
  1. A
    kg/cm²
  2. B
    kg/cm
  3. C
    kg/mm
  4. D
    kg/cm3
Question 31Single Answer
Which one of the following quantities doe not have unit ?
  1. A
    Stress
  2. B
    Force
  3. C
    Strain
  4. D
    Pressure
Question 32Single Answer
Dimensional formula for thermal conductivity is here K denotes the temperature:
  1. A
    MLT–2K
  2. B
    MLT–2K–2
  3. C
    MLT–3K
  4. D
    MLT–3K–1
Question 33Single Answer
Which of the following is the unit of molar gas constant ?
  1. A
    JK–1 mol–1
  2. B
    Joule
  3. C
    JK–1
  4. D
    J mol–1
Question 34Single Answer
Density of liquid is 16.8 g cm–3. Its value in the International System of Units is
  1. A
    16.8 kgm–3
  2. B
    168 kgm–3
  3. C
    1680 kgm–3
  4. D
    16800 kgm–3
Question 35Single Answer
The dimensional formula of couple is
  1. A
    [ML² T–2]
  2. B
    [MLT²]
  3. C
    [ML–1T–3]
  4. D
    [ML–2T–2]
Question 36Single Answer
Subtract 0.2 J from 7.26 J and express the result with correct number of significant figures.
  1. A
    7.1 J
  2. B
    7.06 J
  3. C
    7.0 J
  4. D
    7 J
Question 37Single Answer
Multiply 107.88 by 0610 and express the result with correct number of significant figures.
  1. A
    65.8068
  2. B
    65.807
  3. C
    65.81
  4. D
    65.8
Question 38Single Answer
When 97.52 is divided by 2.54, the correct result is
  1. A
    38.3937
  2. B
    38.394
  3. C
    38.39
  4. D
    38.4
Question 39Single Answer
Which of the following is the most accurate ?
  1. A
    200.0m
  2. B
    20 × 10¹ m
  3. C
    2×10²m
  4. D
    data is inadequate
Question 40Single Answer
The area of a square is 5.29 cm². The area of 7 such square taking into account the significant figures is:
  1. A
    37cm²
  2. B
    37.030 cm²
  3. C
    37.03 cm²
  4. D
    37.0 cm²
Question 41Single Answer
The SI unit of coeffient of mutual inductance of a coil is
  1. A
    henry
  2. B
    volt
  3. C
    farad
  4. D
    weber
Question 42Single Answer
The S.I. unit of pole strength is
  1. A
    Am²
  2. B
    Am
  3. C
    Am–1
  4. D
    Am–2
Question 43Single Answer
Which is dimensionless ?
  1. A
    Force/acceleration
  2. B
    Velocity/accerleration
  3. C
    Volume/area
  4. D
    Energy/work
Question 44Single Answer
The expression [ML–1T–2] does not represent
  1. A
    pressure
  2. B
    power
  3. C
    Stress
  4. D
    Young's modulus
Question 45Single Answer
The dimensional formul of current density is
  1. A
    [M0L–2T–1Q]
  2. B
    [M0L2T1Q–1]
  3. C
    [MLT–1Q]
  4. D
    [ML–2T–1Q²]
Question 46Single Answer
Match the List – I with List – II
List - I                  List - II
(Units)        (Physical quantity)
A. Watt                 1. Electric charge
B. Tesla               2. Power
C. Coulomb       3. Luminous intensity
D. Candela        4. Magnetic field
Select the correct answer from the codes given below :
  1. A
    A B C D
    1 4  1  3
  2. B
    1 2  3 4
  3. C
    1 2  4  3
  4. D
    2 4 3   1
Question 47Single Answer
Match the List – I with List – II
List - I                            List - II
(Physical quantity)    (Units)
A. Power                    1. kg ms–1
B. Energy                   2. kg m²s–1
C. Momentum          3. Nm–2
D. Pressure              4. kW
                                    5. kWh
Select the correct answer from the codes given below :
  1. A
    A B C D
    4 5 1  3
  2. B
    4 5 1 2
  3. C
    5 4 1 2
  4. D
    5 4 2 3
Question 48Single Answer
What is the correct sequence in which the lengths of the following units increase ?
(1) Angstrom
(2) Micron
(3) Nanometer
Select the correct answer from the codes given below :
  1. A
    1, 2, 3
  2. B
    3, 1, 2
  3. C
    1, 3, 2
  4. D
    2, 3, 1
Question 49Single Answer
Match the List – I with List – II
List - I                                   List - II
(Physical quantitiy)           (Units)
A. Density                         1. [MLT–2]
B. Force                            2. [ML–3]
C. Energy                         3. [MLT–1]
D. Momentum                 4. [ML2T–2]
Select the correct answer from the codes given below :
  1. A
    A B C D
    3 2  4  1
  2. B
    1 2 3 4
  3. C
    2 1 4 3
  4. D
    3 2 1 4
Question 50Single Answer
Match the List – I with List – II
List - I                              List - II
(Physical quanitity)      (Units)
A. Solid angle            1. pascal
B. Impulse                  2. Steradian
C. Viscosity                3. Newton–second
D. Pressure               4. Pascal–second
Select the correct answer from the codes given below :
  1. A
    A B C D
    2 4  3 1
  2. B
    2 3 4 1
  3. C
    1 4 3 2
  4. D
    1 3 4 2
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