Question : A tachometer is a device used to measure
Option 1: gravitational pull
Option 2: speed of rotation
Option 3: surface tension
Option 4: dispersive power
Latest: SSC CGL 2024 final Result Out | SSC CGL preparation tips to crack the exam
Don't Miss: SSC CGL Tier 1 Scorecard 2024 Released | SSC CGL complete guide
Suggested: Month-wise Current Affairs | Upcoming Government Exams
Correct Answer: speed of rotation
Solution : The correct answer is tachometer
A tachometer is an instrument designed to measure the rotation speed of a shaft or disk. Tachometers generally measure rotations per minute (RPM) though some models also serve as rate meters and/or totalizers.
tachometer, device for indicating the angular (rotary) speed of a rotating shaft. The term is usually restricted to mechanical or electrical instruments that indicate instantaneous values of speed in revolutions per minute, rather than devices that count the number of revolutions in a measured time interval and indicate only average values for the interval.
Mechanical tachometers utilize the fact that the centrifugal on a rotating mass depends on the speed of rotation and can be used to stretch or compress a mechanical spring.
Final answer is tachometer
Candidates can download this ebook to know all about SSC CGL.
Admit Card | Eligibility | Application | Selection Process | Preparation Tips | Result | Answer Key
Question : Which of the following statements is not correct about surface tension?
Option 1: Surface tension is typically measured in dynes cm.
Option 2: The shape of the water drop is spherical due to surface tension.
Option 3: At room temperature, the surface tension of water is less than ethyl alcohol.
Option 4: The cohesive forces between liquid molecules are responsible for the phenomenon known as surface tension.
Question : Name the process by which bubbles from liquid are formed?
Option 1: Effervescence
Option 2: Surface tension
Option 3: Surface energy
Option 4: Degasification
Question : Intensity of gravitational field of earth is maximum at
Option 1: Poles
Option 2: Equator
Option 3: Centre of earth
Option 4: Surface
Question : Soap bubble attains spherical shape due to _____.
Option 1: inertia
Option 2: pressure
Option 4: viscosity
Question : Which of the following devices is used to measure humidity?
Option 1: Hydrometer
Option 2: Hygrometer
Option 3: Psychrometer
Option 4: Anemometer
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile