Q.1

The thickness of a micron, is

  • 10-3 m
  • 10-6 m
  • 10-9 m
  • 10-12 m
Q.2

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

  • Surface tension
  • Kinematic viscosity
  • Pressure
  • Power.
Q.3

The S.I. unit of Modulus of elasticity is

  • Newton/m2
  • Newton/cm2
  • Newton/mm2
  • all the above.
Q.4

One Netwon force equals

  • 105 dynes
  • 104 dynes
  • 103 dynes
  • 102 dynes
Q.5

The intensity of pressure at a certain place is 1 kg (f)/m2, the intensity of pressur e in SI units will be

  • 47.88 N/m2
  • 9.81 N/m2
  • 4.882 N/m2
  • 0.07013 N/m2
Q.6

Pick up the correct statement from the following:

  • In S.I. system, pressure is expressed in N/m2
  • In S.I. system, surface tension is expressed in Newton per metre
  • In S.I. system, force is expressed in Newtons
  • In S.I. system, power is expressed in watts
  • All the above.
Q.7

In S.I. system, symbol for the specific weight is

  • kg/m3
  • N/m3
  • N/m2
  • none of these.
Q.8

One Newton is equivalent to

  • 0.10197 kgf
  • 0.20197 kgf
  • 9.80665 kgf
  • 0.97125 kgf
Q.9

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

  • N/m3
  • kg/m3
  • m3/s
  • kg
Q.10

If α is the angular acceleration of a body of moment of inertia I, the torque is

  • I2 α
  • I α
  • I/α
  • I2/α
  • I α1/2
Q.11

kN/m2 pressure is equal to

  • 1 atm
  • 1 bar
  • 1 m bar
  • 1 mm Hg
Q.12

The SI unit of the force is

  • Newton
  • Kilogrames
  • Joule
  • Erg
Q.13

Joule or Newton metric is used for

  • Work
  • Torque
  • Energy
  • All the above.
Q.14

Pick up the correct statement from the following:

  • 1 N force = 0.10197 kgf
  • 1 kgf = 9.80665 N
  • 1 kgf/cm2 = 98.0665 kN/m2
  • 1 atm = 101.325 kN/m2
  • All the above.
Q.15

Hertz (Hz) is used to express

  • Luminous intensity
  • electric current intensity
  • power
  • frequency.
Q.16

In SI units, moment is expressed as

  • kg-m
  • kg-cm
  • kg-mm
  • all the above.
Q.17

1 kg wt in gravitational unit equals

  • 8.9 N in SI system
  • 9.8 N in SI system
  • 4.5 N in SI system
  • 5.4 N in SI system.
Q.18

The solid angles are measured in

  • degrees
  • grades
  • radians
  • steradians.
Q.19

In SI system, the unit of temperature, is

  • Degree centigrade
  • Degree Celsius
  • Kelvin
  • Degree Fahrenheit.
Q.20

Stress in SI units is expressed in

  • kg per sq cm
  • kg per sq mm
  • Newton per sq mm
  • Newton per sq cm
  • Newton per sq m
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