1.  Which instrument is used to measure depth of ocean?

a

  Fluxmeter

b

 Endoscope

c

 Fathometer

d

 Galvanometer

Answer & Explanation
Answer : Option C

2.  'Farad' is the unit of

a

  Resistance

b

 Inductance

c

 Capacitance

d

 Conductance

Answer & Explanation
Answer : Option C

3.  A device used for converting A. C. into D.-

a

  Dynamo

b

 Rectifier

c

 Transformer

d

 Induction coil

Answer & Explanation
Answer : Option B

4.  Which instrument is used to record changes in heartbeat, blood-pressure and respiration

a

  Periscope

b

 Polygraph

c

 Pykometer

d

 Photometer

Answer & Explanation
Answer : Option B

5.  Which instrument is used to measure curvature of spherical objects?

a

  Sextant

b

 Spherometer

c

 Spectroscope

d

 Spectrometer

Answer & Explanation
Answer : Option B

6.  The unit of noise pollution (level) is -

a

  ppm

b

 decibel

c

 decimal

d

 None of these

Answer & Explanation
Answer : Option B

7.  Which instrument is used to measure the pitch of a sound?

a

  Telemeter

b

 Tonometer

c

 Thermostat

d

 Transponder

Answer & Explanation
Answer : Option B

8.  Which unit we use to express Nuclear sizes?

a

  Tesla

b

 Fermi

c

 Newton

d

 None of above

Answer & Explanation
Answer : Option B

9.  Which instrument is used to view two dimensional pictures?

a

  Streoscope

b

 Tachometer

c

 Stroboscope

d

 Tangent Galvanometer

Answer & Explanation
Answer : Option A

10.  The SI unit of ' mass ' is

a

  Kg

b

 Dyne

c

 Joule

d

 Newton

Answer & Explanation
Answer : Option A

11.  Which instrument is used to measure level of humidity?

a

  Hygrometer

b

 Hygroscope

c

 Hypsometer

d

 Hydrophone

Answer & Explanation
Answer : Option A

12.  What is unit of Astronomical distance?

a

  light year

b

 angstrom

c

 weber

d

 lux

Answer & Explanation
Answer : Option A

13.  Which instrument is used to measure changes in volume of substances?

a

  Cyclotron

b

 Dyanamo

c

 Dilatometer

d

 Electroscope

Answer & Explanation
Answer : Option C

14.  Which instrument is used to longitude of a vessel at sea?

a

  Colorimeter

b

 Commutator

c

 Chronometer

d

 Cathetometer

Answer & Explanation
Answer : Option C

15.  The equivalent of one Dobson unit is

a

  0.1 m

b

 0.01 m

c

 0.1 mm

d

 0.01 mm

Answer & Explanation
Answer : Option D

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