Physics: Units and Measurements MCQ Quiz 1

units and measurements mcq
Quiz Set12

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

View Answer
(B) 183 × 107 nm

Question 2. A nanometre is equal to?

(A) 10–9 cm

(B) 10–8 cm

(C) 10–7 cm

(D) 10–6 cm

View Answer
(C) 10–7 cm

Question 3. Ampere is the unit of?

(A) Power

(B) Resistance

(C) Electric current

(D) Voltage

View Answer
(C) Electric current

Question 4. Megawatt is the measuring unit of power which is?

(A) Lost in transmission

(B) Saved

(C) Consumed

(D) Generated

View Answer
(D) Generated

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

View Answer
(A) Pressure – Dyne

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

View Answer
(A) Light year – Unit of measuring time

Question 7. How many watts are there in a horsepower? 

(A) 748

(B) 746

(C) 750

(D) 1000

View Answer
(B) 746 

Question 8. ‘Joule’ is related to energy in the same way as ‘Pascal’ is related to?

(A) Purity

(B) Density

(C) Pressure

(D) Mass

View Answer
(C) Pressure

Question 9. One micron is equal to?

(A) 1/10,000 mm

(B) 1/1000 mm

(C) 1/100 mm

(D) 1/10 mm

View Answer
(B) 1/1000 mm

Question 10. One micron represents a length of?

(A) 1 m

(B) 1 mm

(C) 10–4 cm

(D) 10–6 cm

View Answer
(C) 10–4 cm

Question 11. Which unit of measurement is multiplied by 0.39 to convert it to ‘inches’?

(A) Decimetre

(B) Metre

(C) Centimetre

(D) Millimetre

View Answer
(C) Centimetre

Question 12. PARSEC is the unit of?

(A) Magnetic force

(B) Light intensity

(C) Time

(D) Distance

View Answer
(D) Distance

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

View Answer
(C) 3.25 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

View Answer
(C) The distance travelled by light in one year

Question 15. Which one of the following is the unit of measure of the thickness of the ozone layer of the atmosphere?

(A) Maxwell

(B) Poise

(C) Dobson

(D) Knot

View Answer
(C) Dobson

Question 16. Light year is the unit of?

(A) Intensity of light

(B) Speed of light

(C) Time

(D) Distance

View Answer
(D) Distance

Question 17. The unit of the force is?

(A) Rutherford

(B) Newton

(C) Fermi

(D) Faraday

View Answer
(B) Newton

Question 18. The unit of power is?

(A) Neutrons

(B) Watt

(C) Volts

(D) Hertz

View Answer
(B) Watt 

Question 19. The SI unit of electrical resistance of conductor is?

(A) Ohm-metre

(B) Ampere

(C) Volts

(D) Faraday

View Answer
(A) Ohm-metre

Question 20. The unit of work is?

(A) Dyne

(B) Watt

(C) Neutron

(D) Joule

View Answer
(D) Joule 
Quiz Set12