1.The instrument used to convert AC to DC current
A. Electric motor
B. Recifier
C. Microphone
D. Dynamo
Ans: rectifier
1. Which
instrument is used to measure pressure?
A. Ammeter
B.manometer
C. lactometer
D. Saccharimeter
Ans: B.manometer
2.
The instrument used for measuring the
density or relative density of liquids?
A. Hygrometer
B.Hydrometer
C.Multimeter
D.Fathometer
Ans:
3.Which
instrument regulates the resistance or current in a circuit?
A.Volta cell
B. Sonometer
C.Rheostat
D. Generator
Ans: C.Rheostat
3.
Name the instrument used in aeroplanes to measure height
A. barometer
B.altimeter
C.pedometer
D.multimeter
Ans: B.altimeter
4.
The instrument used to measure the intensity of electric current
A. sonometer
B.voltmeter
C.Galvanometer
D.Ammeter
Ans: D.Ammeter
5.Instrument
used to measure the pressure of gases
A. Manometer
B.Calorimeter
C.perimeter
D.Galvanometer
Ans: A. Manometer
6.
The instrument to test the purity of milk
A.Barometer
B.Odometer
C.Manometer
D.Lactometer
Ans: D.Lactometer
7.
Hygrometer is used to measure
A. temperature
B.pressure
C.humidity
D.specific gravity
Ans: C.humidity
8.
The use of Galvanometer
A. To measure the insetnsity of sound
B.to measure the depth of
water
C.to measure the electric current
D.to measure the speed of
vehicle
Ans: C.to measure
the electric current
9. Which instrument is used
to measure atmospheric humidity?
A. Hygrometer
B.Hydrometer
C.Lactometer
D.barometer
Ans: A.
Hygrometer
10.The instrument used to measure the growth of plant is
A.Durometer
B.auxanometer
C.potometer
D.cryometer
Ans:B.auxanometer