Download PDF
Free download in PDF SI Unit Multiple Choice Questions(MCQs) & 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.
(1)
One Newton force produces an acceleration of
[A]
1 cm/sec2 while acting on a body of 1 gm mass
[B]
1 cm/sec2 while acting on a body of 1 kg mass
[C]
1 m/sec2 while acting on a body of 1 kg mass
[D]
1 m/sec2 while acting on a body of 1 gm mass.
Answer: 1 m/sec2 while acting on a body of 1 kg mass
(2)
Angular acceleration is expressed as
[A]
m/s2
[B]
w/s2
[C]
rad/s2
[D]
rad/s
(3)
In SI units, moment is expressed as
[A]
kg-m
[B]
kg-cm
[C]
kg-mm
[D]
all the above
(4)
If α is the angular acceleration of a body of moment of inertia I, the torque is
[A]
I2 α
[B]
I α
[C]
I/α
[D]
I2/α
(5)
The intensity of pressure at a certain place is 1 kg (f)/m2, the intensity of pressur e in SI units will be
[A]
47.88 N/m2
[B]
9.81 N/m2
[C]
4.882 N/m2
[D]
0.07013 N/m2
(6)
Pick up the correct statement from the following:
[A]
The units of moment of inertia of a plane area, depends upon the units of the area and the length
[B]
The moment of inertia is expressed in m4 if the area is in square metres and the length is also in metres
[C]
The moment of inertia is expressed in cm4 if the area is in square centimetres and the length in centimetres
[D]
All the above
(7)
10-12, is called
[A]
Terra
[B]
pico
[C]
Giga
[D]
Mega
(8)
The solid angles are measured in
[A]
degrees
[B]
grades
[C]
radians
[D]
steradians.
(9)
100 kN/m2 pressure is equal to
[A]
1 atm
[B]
1 bar
[C]
1 m bar
[D]
1 mm Hg
(10)
Pick up the correct statement from the following:
[A]
In S.I. system, pressure is expressed in N/m2
[B]
In S.I. system, surface tension is expressed in Newton per metre
[C]
In S.I. system, force is expressed in Newtons
[D]
All the above
(11)
The fundamental units in S.I. system, are the same as that of
View Answer Discuss in Forum Workspace Report
[A]
C.G.S. units
[B]
F.P.S. units
[C]
M.K.S. units
[D]
None of these.
(12)
The thickness of a micron, is
[A]
10-3 m
[B]
10-6 m
[C]
10-9 m
[D]
10-12 m
(13)
Pick up the correct statement from the following:
[A]
1 N force = 0.10197 kgf
[B]
1 kgf = 9.80665 N
[C]
1 atm = 101.325 kN/m2
[D]
All the above
(14)
In S.I. system, the symbol for density is
[A]
N/m3
[B]
kg/m3
[C]
m3/s
[D]
kg
(15)
Intensity of electric current is expressed in
[A]
volts
[B]
watts
[C]
amperes
[D]
joules.
(16)
The basic quantity in the International system of units, is
[A]
length and mass
[B]
time and temperature
[C]
mole and light intensity
[D]
all the above
(17)
SI unit for the surface tension, is
[A]
kg/m3
[B]
kg/m2
[C]
kg/m
[D]
N/m
(18)
To convert the units of M.K.S. to units of S.I., a factor 9.80665 is used for
[A]
mass
[B]
force
[C]
work energy
[D]
all the above
(19)
1 kg wt in gravitational unit equals
[A]
8.9 N in SI system
[B]
9.8 N in SI system
[C]
4.5 N in SI system
[D]
5.4 N in SI system.
Answer: 9.8 N in SI system
(20)
Hertz (Hz) is used to express
[A]
frequency
[B]
power
[C]
Luminous intensity
[D]
electric current intensity
Take Mock Tests