15. Joule or Newton metric is used for
A. Work
B. Torque
C. Energy
D. All the above.
16. 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.
17. Hertz (Hz) is used to express
A. Luminous intensity
B. electric current intensity
C. power
D. frequency.
18. Candela (Cd) is used to express
A. luminous intensity
B. electric current intensity
C. power
D. frequency.
19. The solid angles are measured in
A. degrees
B. grades
C. radians
D. steradians.
20. Angular acceleration is expressed as,
A. m/s
B. w/s2
C. rad/s2
D. racl/s
21. N-s/m2 is used in S.I. system for
A. Kinematic viscosity
B. Dynamic viscosity
C. Mass density
D. Weight density
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