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Multiple Choice Questions on SI Units

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The Following Section consists of Multiple Choice Questions on SI Units.

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SI Units MCQ

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Question 1 of 20

1. Question
1 points
1 kg wt in gravitational unit equals
- 8.9 N in SI system
- 9.8 N in SI system
- 4.5 N in SI system
- 5.4 N in SI system.
Correct

Incorrect
Question 2 of 20

2. Question
1 points
To convert the units of M.K.S. to units of S.I., a factor 9.80665 is used for
- force
- work energy
- power
- all
Correct

Incorrect
Question 3 of 20

3. Question
1 points
SI unit for the surface tension, is
- kg/m
- kg/m²
- kg/m³
- N/m
Correct

Incorrect
Question 4 of 20

4. Question
1 points
The basic quantity in the International system of units, is
- time and temperature
- mole and light intensity
- electric current
- all
Correct

Incorrect
Question 5 of 20

5. Question
1 points
Intensity of electric current is expressed in
- volts
- amperes
- watts
- joules
Correct

Incorrect
Question 6 of 20

6. Question
1 points
One Netwon force equals
- 10⁵ dynes
- 10³ dynes
- 10⁴ dynes
- 10² dynes
Correct

Incorrect
Question 7 of 20

7. Question
1 points
In S.I. system, the symbol for density is
- N/m³
- m³/s
- kg/m³
- kg
Correct

Incorrect
Question 8 of 20

8. Question
1 points
Pick up the correct statement from the following:
- 1 N force = 0.10197 kgf
- 1 kgf = 9.80665 N
- 1 atm = 101.325 kN/m²
- All
Correct

Incorrect
Question 9 of 20

9. Question
1 points
The fundamental units in S.I. system, are the same as that of
- C.G.S. units
- F.P.S. units
- M.K.S. units
- None of these.
Correct

Incorrect
Question 10 of 20

10. Question
1 points
The thickness of a micron, is
- 10^-3 m
- 10^-6 m
- 10^-9 m
- 10^-12 m
Correct

Incorrect
Question 11 of 20

11. Question
1 points
Pick up the correct statement from the following:
- In S.I. system, surface tension is expressed in Newton per metre
- In S.I. system, force is expressed in Newtons
- In S.I. system, power is expressed in watts
- all
Correct

Incorrect
Question 12 of 20

12. Question
1 points
100 kN/m² pressure is equal to
- 1 atm
- 1 bar
- 1 m bar
- 1 mm Hg
Correct

Incorrect
Question 13 of 20

13. Question
1 points
One Newton force produces an acceleration of
- 1 cm/sec² while acting on a body of 1 gm mass
- 1 cm/sec² while acting on a body of 1 kg mass
- 1 m/sec² while acting on a body of 1 kg mass
- 1 m/sec² while acting on a body of 1 gm mass.
Correct

Incorrect
Question 14 of 20

14. Question
1 points
Angular acceleration is expressed as
- m/s²
- rad/s²
- w/s²
- rad/s
Correct

Incorrect
Question 15 of 20

15. Question
1 points
In SI units, moment is expressed as
- kg-m
- kg-cm
- kg-mm
- all
Correct

Incorrect
Question 16 of 20

16. Question
1 points
If α is the angular acceleration of a body of moment of inertia I, the torque is
- I² α
- I α
- I/α
- I²/α
Correct

Incorrect
Question 17 of 20

17. Question
1 points
The intensity of pressure at a certain place is 1 kg (f)/m², the intensity of pressur e in SI units will be
- 47.88 N/m²
- 9.81 N/m²
- 4.882 N/m²
- 0.07013 N/m²
Correct

Incorrect
Question 18 of 20

18. Question
1 points
Pick up the correct statement from the following:
- The moment of inertia is expressed in m4 if the area is in square metres and the length is also in metres
- The moment of inertia is expressed in cm4 if the area is in square centimetres and the length in centimetres
- The moment of inertia is expressed in mm4 if the area is in square millimetres and the length in millimetres
- all
Correct

Incorrect
Question 19 of 20

19. Question
1 points
10^-12, is called
- Terra
- pica
- Giga
- Mega
Correct

Incorrect
Question 20 of 20

20. Question
1 points
The solid angles are measured in
- degrees
- radians
- grades
- steradians
Correct

Incorrect

Time limit: 0

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SI Units MCQ 2

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Question 1 of 15

1. Question
1 points
Hertz (H^z) is used to express
- Luminous intensity
- electric current intensity
- power
- frequency.
Correct

Incorrect
Question 2 of 15

2. Question
1 points
Candela (Cd) is used to express
- luminous intensity
- electric current intensity
- power
- frequency.
Correct

Incorrect
Question 3 of 15

3. Question
1 points
The unit kg/m³ is used for
- force
- volume
- density
- pressure
Correct

Incorrect
Question 4 of 15

4. Question
1 points
The fundamental units in S.I. System are :
- Centimetre, gram, second
- Foot, pound, second
- Metre, kilogram, second
- Kilometre, kilogram, minute
Correct

Incorrect
Question 5 of 15

5. Question
1 points
The bar used for defining the standard metre at the International office of weights and measures at Sevres near Paris, is composed of
- 60% platinum and 40% iridium
- 70% platinum and 30% iridium
- 80% platinum and 20% iridium
- 90% platinum and 10% iridium
Correct

Incorrect
Question 6 of 15

6. Question
1 points
m²/s is used in S.I. system for
- Surface tension
- Kinematic viscosity
- Pressure
- Power.
Correct

Incorrect
Question 7 of 15

7. Question
1 points
The S.I. unit of Modulus of elasticity is
- Newton/m²
- Newton/cm²
- Newton/mm²
- all
Correct

Incorrect
Question 8 of 15

8. Question
1 points
One Newton is equivalent to
- 0.10197 kgf
- 0.20197 kgf
- 9.80665 kgf
- 0.97125 kgf
Correct

Incorrect
Question 9 of 15

9. Question
1 points
Joule or Newton metric is used for
- Work
- Torque
- Energy
- all
Correct

Incorrect
Question 10 of 15

10. Question
1 points
Stress in SI units is expressed in
- kg per sq mm
- Newton per sq mm
- Newton per sq cm
- Newton per sq m
Correct

Incorrect
Question 11 of 15

11. Question
1 points
In S.I. system, symbol for the specific weight is
- kg/m³
- N/m³
- N/m²
- none of these.
Correct

Incorrect
Question 12 of 15

12. Question
1 points
The SI unit of the force is
- Newton
- Joule
- Kilogrames
- Erg
Correct

Incorrect
Question 13 of 15

13. Question
1 points
In SI system, the unit of temperature, is
- Degree centigrade
- Degree Celsius
- Kelvin
- Degree Fahrenheit.
Correct

Incorrect
Question 14 of 15

14. Question
1 points
N-s/m² is used in S.I. system for
- Kinematic viscosity
- Dynamic viscosity
- Mass density
- Weight density.
Correct

Incorrect
Question 15 of 15

15. Question
1 points
Basic unit of thermodynamic temperature, is
- degree fahrenheit
- degree centigrade
- degree kelvin
- degree absolute.
Correct

Incorrect

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