# Online Civil Engineering Test - SI Units Test Loading Test...

Instruction:

• This is a FREE online test. DO NOT pay money to anyone to attend this test.
• Total number of questions : 20.
• Time alloted : 30 minutes.
• Each question carry 1 mark, no negative marks.
• DO NOT refresh the page.
• All the best :-).

1.

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. 2.

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.
 power E.
 all the above. 3.

SI unit for the surface tension, is

A.
 kg/m3 B.
 kg/m2 C.
 kg/m D.
 N/m 4.

In S.I. system, the symbol for density is

A.
 N/m3 B.
 kg/m3 C.
 m3/s D.
 kg 5.

The thickness of a micron, is

A.
 10-3 m B.
 10-6 m C.
 10-9 m D.
 10-12 m 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.
 The moment of inertia is expressed in mm4 if the area is in square millimetres and the length in millimetres E.
 All the above. 7.

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 8.

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 E.
 I α1/2 9.

In SI units, moment is expressed as

A.
 kg-m B.
 kg-cm C.
 kg-mm D.
 all the above. 10.

Angular acceleration is expressed as

A.
 m/s2 B.
 w/s2 C.
 rad/s2 D.
 rad/s 11.

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. 12.

Hertz (Hz) is used to express

A.
 Luminous intensity B.
 electric current intensity C.
 power D.
 frequency. 13.

Candela (Cd) is used to express

A.
 luminous intensity B.
 electric current intensity C.
 power D.
 frequency. 14.

The unit kg/m3 is used for

A.
 force B.
 density C.
 volume D.
 pressure. 15.

The fundamental units in S.I. System are :

A.
 Centimetre, gram, second B.
 Foot, pound, second C.
 Metre, kilogram, second D.
 Kilometre, kilogram, minute E.
 None of these. 16.

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

A.
 Surface tension B.
 Kinematic viscosity C.
 Pressure D.
 Power. 17.

The S.I. unit of Modulus of elasticity is

A.
 Newton/m2 B.
 Newton/cm2 C.
 Newton/mm2 D.
 all the above. 18.

Joule or Newton metric is used for

A.
 Work B.
 Torque C.
 Energy D.
 All the above. 19.

In SI system, the unit of temperature, is

A.
 Degree centigrade B.
 Degree Celsius C.
 Kelvin D.
 Degree Fahrenheit. 20.

Basic unit of thermodynamic temperature, is

A.
 degree fahrenheit B.
 degree centigrade C.
 degree kelvin D.
 degree absolute. 