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MCQs

Total Questions : 3147 | Page 311 of 315 pages
Question 3101. Euler’s dimensionless number relates the following__________________?
  1.    inertial force and gravity
  2.    viscous force and inertial force
  3.    viscous force and buoyancy force
  4.    pressure force and inertial force
  5.    pressure force and viscous force
 Discuss Question
Answer: Option D. -> pressure force and inertial force
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3102. The speed of sound in a ideal gas varies directly as its__________________?
  1.    pressure
  2.    temperature
  3.    density
  4.    modulus of elasticity
  5.    absolute temperature
 Discuss Question
Answer: Option E. -> absolute temperature
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3103. Piezometer is used to measure_____________________?
  1.    pressure in pipe, channels etc
  2.    atmospheric pressure
  3.    very low pressures
  4.    difference of pressure between two points
  5.    flow
 Discuss Question
Answer: Option C. -> very low pressures
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3104. Pressure of the order of 10″‘ torr can be measured by__________________?
  1.    Bourdon tube
  2.    Pirani Gauge
  3.    micro-manometer
  4.    ionisastion gauge
  5.    McLeod gauge
 Discuss Question
Answer: Option D. -> ionisastion gauge
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3105. Newton’s law of viscosity is a relationship between____________________?
  1.    shear stress anctthejiate of angular distortion
  2.    shear stress and viscosity
  3.    shear stress, velocity and viscosity
  4.    pressure, velocity and viscosity
  5.    shear stress, pressure and rate of angular distortion
 Discuss Question
Answer: Option A. -> shear stress anctthejiate of angular distortion
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3106. The continuity equation is connected with__________________?
  1.    viscous/unviscous fluids
  2.    compressibility of fluids
  3.    conservation of mass
  4.    steady/unsteady flow
  5.    open channel/pipe flow
 Discuss Question
Answer: Option C. -> conservation of mass
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3107. An odd shaped body weighing 7.5 kg and occupying 0.01 m3 volume will be completely submerged in a fluid having specific gravity of__________________?
  1.    1
  2.    1.2
  3.    0.8
  4.    0.75
  5.    1.25
 Discuss Question
Answer: Option D. -> 0.75
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3108. Which of the following instrument can be used for measuring speed of a submarine moving in deep sea__________________?
  1.    Venturimeter
  2.    Orifice plate
  3.    hot wire anemometer
  4.    rotameter
  5.    pitot tube
 Discuss Question
Answer: Option E. -> pitot tube
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3109. Mercury is often used in barometer because____________________?
  1.    it is the best liquid
  2.    the height of barometer will be less
  3.    its vapour pressure is so low that it may be neglected
  4.    both B. and C.
  5.    it moves easily
 Discuss Question
Answer: Option D. -> both B. and C.
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3110. The process of diffusion of one liquid into the other through a semi-permeable membrane is called_______________________?
  1.    viscosity
  2.    osmosis
  3.    surface tension
  4.    cohesion
  5.    diffusivity
 Discuss Question
Answer: Option B. -> osmosis
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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