SI Units MCQs
SI Units MCQs
These SI Units multiple-choice questions and their answers will help you strengthen your grip on the subject of SI Units. You can prepare for an upcoming exam or job interview with these SI Units MCQs.
So scroll down and start answering.
1: Candela (Cd) is used to express
A. Power
B. Frequency.
C. Electric current intensity
D. Luminous intensity
2: The thickness of a micron, is
A. 10-12 m
B. 10-3 m
C. 10-6 m
D. 10-9 m
3: N-s/m2 is used in S.I. system for
A. Kinematic viscosity
B. Weight density.
C. Dynamic viscosity
D. Mass density
4: The basic quantity in the International system of units, is
A. Length and mass
B. All these
C. Mole and light intensity
D. Time and temperature
E. Electric current
5: One Netwon force equals
A. 102 dynes
B. 103 dynes
C. 104 dynes
D. 105 dynes
6: Intensity of electric current is expressed in
A. Volts
B. Joules.
C. Watts
D. Amperes
7: Joule or Newton metric is used for
A. Work
B. Torque
C. Energy
D. All these.
8: In S.I. system, the symbol for density is
A. Kg/m3
B. Kg
C. N/m3
D. M3/s
9: M2/s is used in S.I. system for
A. Kinematic viscosity
B. Power.
C. Surface tension
D. Pressure
10: Pick up the correct statement from the following:
A. In S.I. system, force is expressed in Newtons
B. In S.I. system, pressure is expressed in N/m2
C. In S.I. system, surface tension is expressed in Newton per metre
D. All these
E. In S.I. system, power is expressed in watts
11: 10-12, is called
A. Pica
B. Giga
C. None of these.
D. Mega
E. Terra
12: One Newton force produces an acceleration of
A. 1 cm/sec2 while acting on a body of 1 gm mass
B. 1 m/sec2 while acting on a body of 1 kg mass
C. 1 m/sec2 while acting on a body of 1 gm mass.
D. 1 cm/sec2 while acting on a body of 1 kg mass
13: The unit kg/m3 is used for
A. Pressure.
B. Volume
C. Density
D. Force
14: The intensity of pressure at a certain place is 1 kg (f)/m2, the intensity of pressur e in SI units will be
A. 0.07013 N/m2
B. 9.81 N/m2
C. 47.88 N/m2
D. 4.882 N/m2
15: 100 kN/m2 pressure is equal to
A. 1 mm Hg
B. 1 atm
C. 1 m bar
D. 1 bar
16: Pick the correct statement from the following:
A. The moment of inertia is expressed in mm4 if the area is in square millimetres and the length in millimetres
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. The units of moment of inertia of a plane area, depends upon the units of the area and the length
E. All these
17: The bar used for defining the standard metre at the International office of weights and measures at Sevres near Paris, is composed of
A. 60% platinum and 40% iridium
B. 90% platinum and 10% iridium
C. 70% platinum and 30% iridium
D. 50% platinum and 50% iridium
E. 80% platinum and 20% iridium
18: The SI unit of the force is
A. Joule
B. Newton
C. Erg
D. Kilogrames
19: One Newton is equivalent to
A. 0.97125 kgf
B. 0.10197 kgf
C. 9.80665 kgf
D. 0.20197 kgf
20: The fundamental units in S.I. System are:
A. Metre, kilogram, second
B. Foot, pound, second
C. Kilometre, kilogram, minute
D. None of these.
E. Centimetre, gram, second
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