SI Unit Objective Type Questions & Answers

Questions

21 Basic unit of thermodynamic temperature, is

A degree fahrenheit

B degree centigrade

C degree kelvin

D degree absolute

View Answer

Answer: degree kelvin

22 N-s/m2 is used in S.I. system for

A Kinematic viscosity

B Dynamic viscosity

C Mass density

D Weight density.

View Answer

Answer: Dynamic viscosity

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23 In SI system, the unit of temperature, is

A Degree centigrade

B Degree Celsius

C Kelvin

D Degree Fahrenheit

View Answer

Answer: Kelvin

24 The SI unit of the force is

A Newton

B Kilogrames

C Joule

D Erg

View Answer

Answer: Newton

25 In S.I. system, symbol for the specific weight is

A kg/m3

B N/m3

C N/m2

D none of these

View Answer

Answer: N/m3

26 Stress in SI units is expressed in

A kg per sq cm

B kg per sq mm

C Newton per sq mm

D Newton per sq m

View Answer

Answer: Newton per sq m

27 Joule or Newton metric is used for

A Work

B Torque

C Energy

D All the above

View Answer

Answer: All the above

28 One Newton is equivalent to

A 0.10197 kgf

B 0.20197 kgf

C 9.80665 kgf

D 0.97125 kgf

View Answer

Answer: 0.10197 kgf

29 The S.I. unit of Modulus of elasticity is

A Newton/m2

B Newton/cm2

C Newton/mm2

D all the above.

View Answer

Answer: all the above.

30 m2/s is used in S.I. system for

A Surface tension

B Kinematic viscosity

C Pressure

D Power.

View Answer

Answer: Kinematic viscosity

31 The bar used for defining the standard metre at the International office of weights and measures at Sevres near Paris, is composed of

A 50% platinum and 50% iridium

B 60% platinum and 40% iridium

C 80% platinum and 20% iridium

D 90% platinum and 10% iridium

View Answer

Answer: 90% platinum and 10% iridium

32 The fundamental units in S.I. System are :

A Centimetre, gram, second

B Foot, pound, second

C Metre, kilogram, second

D Kilometre, kilogram, minute

View Answer

Answer: Metre, kilogram, second

33 The unit kg/m3 is used for

A force

B density

C volume

D pressure

View Answer

Answer: density

34 Candela (Cd) is used to express

A luminous intensity

B electric current intensity

C power

D frequency.

View Answer

Answer: luminous intensity

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