Question 1. How can the height of a person who is six feet tall, be expressed (approximately) in nanometre?
(A) 181 × 107 nm
(B) 183 × 107 nm
(C) 234 × 106 nm
(D) 183 × 106 nm
Question 2. A nanometre is equal to?
(A) 10–9 cm
(B) 10–8 cm
(C) 10–7 cm
(D) 10–6 cm
Question 3. Ampere is the unit of?
(C) Electric current
Question 4. Megawatt is the measuring unit of power which is?
(A) Lost in transmission
Question 5. Which one of the following SI unit is not correctly matched?
(A) Pressure – Dyne
(B) Mass – kg
(C) Force – Newton
(D) Work – Joule
Question 6. Which one of the following is not correctly matched?
(A) Light year – Unit of measuring time
(B) Angstrom – Unit of wavelength of light
(C) Nautical mile – Unit of distance used in navigation
(D) Knot – Measure of speed of ship
Question 7. How many watts are there in a horsepower?
Question 8. ‘Joule’ is related to energy in the same way as ‘Pascal’ is related to?
Question 9. One micron is equal to?
(A) 1/10,000 mm
(B) 1/1000 mm
(C) 1/100 mm
(D) 1/10 mm
Question 10. One micron represents a length of?
(A) 1 m
(B) 1 mm
(C) 10–4 cm
(D) 10–6 cm
Question 11. Which unit of measurement is multiplied by 0.39 to convert it to ‘inches’?
Question 12. PARSEC is the unit of?
(A) Magnetic force
(B) Light intensity
Question 13. A parsec, a unit of distance used to measure the distance related to the stars in the sky, is equal to?
(A) 3.05 light years
(B) 4.50 light years
(C) 3.25 light years
(D) 4.25 light years
Question 14. ‘Light Year’ is?
(A) The time in which a spacecraft reaches Moon from the Earth
(B) The time which Sun rays take to reach the Earth
(C) The distance travelled by light in one year
(D) The year in which February has 29 days
Question 15. Which one of the following is the unit of measure of the thickness of the ozone layer of the atmosphere?
Question 16. Light year is the unit of?
(A) Intensity of light
(B) Speed of light
Question 17. The unit of the force is?
Question 18. The unit of power is?
Question 19. The SI unit of electrical resistance of conductor is?
Question 20. The unit of work is?