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Free download in PDF SI Unit Objective Type Questions & Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
(21)
Basic unit of thermodynamic temperature, is
[A]
degree fahrenheit
[B]
degree centigrade
[C]
degree kelvin
[D]
degree absolute
(22)
N-s/m2 is used in S.I. system for
[A]
Kinematic viscosity
[B]
Dynamic viscosity
[C]
Mass density
[D]
Weight density.
Answer: Dynamic viscosity
(23)
In SI system, the unit of temperature, is
[A]
Degree centigrade
[B]
Degree Celsius
[C]
Kelvin
[D]
Degree Fahrenheit
(24)
The SI unit of the force is
[A]
Newton
[B]
Kilogrames
[C]
Joule
[D]
Erg
(25)
In S.I. system, symbol for the specific weight is
[A]
kg/m3
[B]
N/m3
[C]
N/m2
[D]
none of these
(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
(27)
Joule or Newton metric is used for
[A]
Work
[B]
Torque
[C]
Energy
[D]
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
(29)
The S.I. unit of Modulus of elasticity is
[A]
Newton/m2
[B]
Newton/cm2
[C]
Newton/mm2
[D]
all the above.
(30)
m2/s is used in S.I. system for
[A]
Surface tension
[B]
Kinematic viscosity
[C]
Pressure
[D]
Power.
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
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
Answer: Metre, kilogram, second
33
The unit kg/m3 is used for
[A]
force
[B]
density
[C]
volume
[D]
pressure
34
Candela (Cd) is used to express
[A]
luminous intensity
[B]
electric current intensity
[C]
power
[D]
frequency.
Answer: luminous intensity
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