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Unit and measurements part 2

16. The SI unit of electric current is 

(A) metre

(B) volt

(C) ohm

(D) ampere 

17. The quantity which have magnitude but no direction  is known as 

(A) vector

(B) scalar 

(C) real

(D) None of these

18 The formula of density is mass 

(a) mass x volume 

(b) mass /Volume

(c) volume / mass

(d) mass x velocity 

19 Which of the following is a vector quantity? 

(a) Speed  

(b) Work 

(c) Volume

(d) Displacement 

20 Which of the following instrument measures blood pressure? 

(a) Spherometer  

(b) Anemometer

(c) Sphygmomanometer

(d) Ammeter  

21 Which of the following device is best suited for measuring the temperature inside metallurgical furnaces?

(a) Pyrometer 

(b) Thermocouple 

(c) Thermometer 

(d) Thermistor  

22 The device which is used to measure humidity? (a) Hydrometer 

(b) Hygrometer 

(c) Psychometer 

(d) Anemometer 

23 Which of the following device is used to measure depth of ocean? 

(a) Hydrometer 

(b) Spectrometer 

(c) Fathometer 

(d) Anemometer 

24 Galvanometer is used to measure... . 

(a) rain density

(b) distance 

(c) electricity 

(d) temperature  

25 Which one of the following is incorrect? 

(a) Work-joule 

(b) Power-watt

(c) Capacitance-coulomb 

(d) Velocity-ms –¹

26 Match the list I with List II and select the correct answer using the codes given below  

LIST I.                                                      LAST II 

A. Acceleration.                           1. Joule

B. Force.                                        2. Newton second

C. Work done.                              3. Newton

D. Impulse.                                   4. Metre per second 

        A    B    C    D                                       A   B   C   D  

A).                                                          B).

C).                                                          D).

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