A. inertial force and gravity
B. viscous force and inertial force
C. viscous force and buoyancy force
D. pressure force and inertial force
E. pressure force and viscous force
Related Mcqs:
- Which of the following is dimensionless ________________?
A. specific weight
B. specific volume
C. specific speed
D. specific gravity
E. specific viscosity - An object having 10 kg mass weighs 9.81kg on a spring balance. The value of ‘g’ at this place is___________________?
A. 10m/sec2
B. 9.81 m/sec2
C. 10.2/m sec
D. 9.75 m/sec2
E. 9 m/sec . - Alcohol is used in manometer, because___________________?
Choose the wrong statement ?
A. its vapour pressure is low
B. it provides suitable meniscus for the inclined tube
C. its density is less
D. it provides longer length for a given pressure difference
E. it provides accurate readings. - A fluid is said to be ideal, if it is________________?
A. incompressible
B. inviscous
C. viscous and incompressible
D. inviscous and compressible
E. inviscous and incompressible - A fluid in equilibrium can’t sustain_________________?
A. tensile stress
B. compressive stress
C. shear stress
D. bending stress
E. all of the above - A bucket of water is hanging from a spring balance. An iron piece is suspended into water without touching sides of bucket from another support. The spring balance reading will__________________?
A. increase
B. decrease
C. remain same
D. increase/decrease depending on depth of immersion
E. unpredictable - Surface energy per unit area of a surface is numerically equal to___________________?
A. atmospheric pressure
B. surface tension
C. force of adhesion
D. force of cohesion
E. viscosity - The depth of the center of pressure on a vertical rectangular gate 8 m wide and 6 m high, when the water surface coincides with the top of the gate, is ______________________?
A. 2.4 m
B. 3.0 m
C. 4.0 m
D.”2.5 m
E. 5.0 m - Gradually varied flow is____________________?
A. steady uniform
B. non-steady non-uniform
C. non-steady uniform
D. steady non-uniform
E. true one-dimensional - Reynolds number is significant in____________________?
A. supersonics, as with projectile and jet propulsion
B. full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc
C. simultaneous motion through two fluids where there is a surface of dis-continuity, gravity forces, and wave making effect, as with ship’s hulls
D. all of the above
E. none of the above
