SI Units problems
- 1. The basic quantity in the International system of units, is
Options- A. length and mass
- B. time and temperature
- C. mole and light intensity
- D. electric current
- E. all the above. Discuss
Correct Answer: all the above.
- 2. 10-12, is called
Options- A. Terra
- B. pico
- C. Giga
- D. Mega
- E. None of these. Discuss
Correct Answer: pico
- 3. The solid angles are measured in
Options- A. degrees
- B. grades
- C. radians
- D. steradians. Discuss
Correct Answer: steradians.
- 4. In SI units, moment is expressed as
Options- A. kg-m
- B. kg-cm
- C. kg-mm
- D. all the above. Discuss
Correct Answer: all the above.
- 5. The S.I. unit of Modulus of elasticity is
Options- A. Newton/m2
- B. Newton/cm2
- C. Newton/mm2
- D. all the above. Discuss
Correct Answer: all the above.
- 6. To convert the units of M.K.S. to units of S.I., a factor 9.80665 is used for
Options- A. mass
- B. force
- C. work energy
- D. power
- E. all the above. Discuss
Correct Answer: all the above.
- 7. Pick up the correct statement from the following:
Options- 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. Discuss
Correct Answer: All the above.
- 8. The intensity of pressure at a certain place is 1 kg (f)/m2, the intensity of pressur e in SI units will be
Options- A. 47.88 N/m2
- B. 9.81 N/m2
- C. 4.882 N/m2
- D. 0.07013 N/m2 Discuss
Correct Answer: 9.81 N/m2
- 9. In S.I. system, the symbol for density is
Options- A. N/m3
- B. kg/m3
- C. m3/s
- D. kg Discuss
Correct Answer: kg/m3
- 10. 100 kN/m2 pressure is equal to
Options- A. 1 atm
- B. 1 bar
- C. 1 m bar
- D. 1 mm Hg Discuss
Correct Answer: 1 bar
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