1. Name of the instrument to measure atomspheric pressure ?
Barometer
Barograph
Bolometer
Callipers
Answer: Option A
Explanation:
Barograph - Recordings of atmospheric pressure,
Bolometer - Used to measure heat radiation,
Callipers - Used to measure inner and outer diameters of bodies.
2. Which instrument is used to measure altitudes in aircraft's ?
Audiometer
Ammeter
Altimeter
Anemometer
Answer: Option C
Explanation:
Ammeter - Measures strength of electric current.
Audiometer - Measures intensity of sound.
Anemometer - Measures force and velocity of wind and directions.
3. Which is true
In a static liquid at same horizontal level, pressure is more at centre
In a static liquid at same horizontal level, pressure is less at centre.
In a static liquid at same horizontal level, pressure is same at all points
In a static liquid at same horizontal level, pressure is different at all points
Answer: Option C
4. Which instrument is used to record physical happenings at a distant place ?
Thermostat
Tonometer
Telemeter
Transponder
Answer: Option C
Explanation:
Thermostat - is used to regulate the temperature at a particular point.
Tonometer - is used to measure the pitch of a sound,
Transponder - is used to receive a signal and transmit a reply immediately.
5. Which instrument is used in submarine to see the objects above sea level ?
Pykometer
Polygraph
Photometer
Periscope
Answer: Option D
Explanation:
Pykometer - used to determine the density and coefficient of expansion of liquids,
Polygraph - used to record changes in heartbeat, blood-pressure and respiration,
Photometer - used to compare luminous intensity of the source of light.