For which purpose ‘Seismograph’ is used?
- (A) For predicting earthquakes
- (B) For recording earthquakes
- (C) For detecting and measuring earthquakes
- (D) For measure the power and magnitude of earthquakes
- (C) For detecting and measuring earthquakes
Which instrument is used to measure humidity in air?
- (A) Hydrometer
- (B) Hygrometer
- (C) Odometer
- (D) Speedometer
- (B) Hygrometer
Which device is used to measure the specific gravity of a liquid?
- (A) Tachometer
- (B) Manometer
- (C) Hydrometer
- (D) Barometer
- (C) Hydrometer
The instrument which measures very high temperature is called:
- (A) Thermometer
- (B) Hygrometer
- (C) Chronometer
- (D) Pyrometer
- (D) Pyrometer
‘Lactometer’ is an instrument for measuring:
- (A) Speed of sound
- (B) Humidity in the air
- (C) Density of milk
- (D) Thickness of yogurt
- (C) Density of milk
The instrument used to detect the nature of charge is:
- (A) Stroboscope
- (B) Electroscope
- (C) Spectroscope
- (D) Microscope
- (B) Electroscope
‘Sphygmomanometer’ is an instrument used to measure _______.
- (A) Humidity in the air
- (B) Blood pressure
- (C) Purity of milk
- (D) Thickness of water
- (B) Blood pressure
Capacitors are used to store:
- (A) Current
- (B) Voltage
- (C) Charge
- (D) Resistance
- (C) Charge
The instrument used to examine stomach is:
- (A) Periscope
- (B) Gastroscope
- (C) Bronchoscope
- (D) Cystoscope
- (B) Gastroscope
‘Ripple tank’ is a device used to study the characteristics of:
- (A) Mechanical waves
- (B) Sound waves
- (C) Radio waves
- (D) Electrical waves
- (A) Mechanical waves