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MCQs

Total Questions : 109 | Page 6 of 11 pages
Question 51.


The basic quantity in the International system of units, is



  1.    length and mass
  2.    time and temperature
  3.    mole and light intensity
  4.    electric current
  5.    all the above.
 Discuss Question
Answer: Option E. -> all the above.


Question 52.


SI unit for the surface tension, is



  1.    kg/m3
  2.    kg/m2
  3.    kg/m
  4.    N/m
 Discuss Question
Answer: Option D. -> N/m


Question 53.

To convert the units of M.K.S. to units of S.I., a factor 9.80665 is used for


  1.    mass
  2.    force
  3.    work energy
  4.    power
  5.    all the above.
 Discuss Question
Answer: Option E. -> all the above.


Question 54.


1 kg wt in gravitational unit equals



  1.    8.9 N in SI system
  2.    9.8 N in SI system
  3.    4.5 N in SI system
  4.    5.4 N in SI system.
 Discuss Question
Answer: Option B. -> 9.8 N in SI system


Question 55. Hertz (Hz) is used to express
  1.    Luminous intensity
  2.    electric current intensity
  3.    power
  4.    frequency.
 Discuss Question
Answer: Option D. -> frequency.
Answer: (d).frequency.
Question 56. The bar used for defining the standard metre at the International office of weights and measures at Sevres near Paris, is composed of
  1.    50% platinum and 50% iridium
  2.    60% platinum and 40% iridium
  3.    70% platinum and 30% iridium
  4.    90% platinum and 10% iridium
 Discuss Question
Answer: Option D. -> 90% platinum and 10% iridium
Answer: (d).90% platinum and 10% iridium
Question 57. The fundamental units in S.I. System are :
  1.    Centimetre, gram, second
  2.    Foot, pound, second
  3.    Metre, kilogram, second
  4.    Kilometre, kilogram, minute
 Discuss Question
Answer: Option C. -> Metre, kilogram, second
Answer: (c).Metre, kilogram, second
Question 58. The unit kg/m³ is used for
  1.    force
  2.    density
  3.    volume
  4.    pressure.
 Discuss Question
Answer: Option B. -> density
Answer: (b).density
Question 59. Candela (Cd) is used to express
  1.    luminous intensity
  2.    electric current intensity
  3.    power
  4.    frequency.
 Discuss Question
Answer: Option A. -> luminous intensity
Answer: (a).luminous intensity
Question 60. 1 kg wt in gravitational unit equals
  1.    8.9 N in SI system
  2.    9.8 N in SI system
  3.    4.5 N in SI system
  4.    5.4 N in SI system.
 Discuss Question
Answer: Option B. -> 9.8 N in SI system
Answer: (b).9.8 N in SI system

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