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Measuring Devices and Scales

📆 September 19, 2024

Measuring Devices and Scales

Total Questions: 52

51. The instrument used for measuring angular distances in vertical plane (elevation) and the horizontal plane (azimuth) is : [Chhattisgarh P.C.S. (PRE) 2020]

Correct Answer: (d) Theodolite
Solution:Theodolite is an optional instrument that is used for measuring angular distance between designated visible points in the horizontal and vertical planes.

52. consider the following actions : [I.A.S. (PRE) 2023]

1.Detection of a car crash/collision which results in the deployment of airbags almost instantaneously.
2.Detection of accidental free fall of a laptop towards the ground which results in the immediate turning off of the drive .
3.Detection of the tilt of the smartphone which result in the rotation of the display between portraits and landscapes mode.
In how many of the above actions is the function of accelerometer required ?

Correct Answer: (c) All three
Solution:An accelerometer is a device that measure the vibration. or acceleration of motion of a structure.one of the most common uses for ,mems accelerator is in airbags deployment system in the automobile.In this case the accelerometer are used to detect the rapid negative acceleration of the vehicle to determine when a collision has occurred and the severity of the collision.A free-fall sensor is an accelerator used to detect if a system has been dropped and is falling .It can then apply safety measure such as turning of and parking and head of hard to prevent a head crash and result a data loss upon impact.Hence the all the three statement are correct.
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