Questions and answers for exam Preparation

MCQs

Total Questions : 1709 | Page 163 of 171 pages

Question 1621. The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at the centriod, if __________________?

the area is horizontal
the area is vertical
the area is inclined
all of the above
none of the above

Discuss Question

Answer: Option D. -> all of the above
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1622. A square surface 3 m x 3 m lies in a vertical line in water pipe its upper edge at vater surface. The hydrostatic force on square surface is __________________?

9,000 kg
13,500 kg
18,000 kg
27,000 kg
30,000 kg

Discuss Question

Answer: Option B. -> 13,500 kg
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1623. A body floats in stable equilibrium________________?

when its meatcentric height is zero
when the metancentre is above e.g
when its e.g. is below it’s center of buoyancy
metacentre has nothing to do with position of e.g. for determining stability
none of the above

Discuss Question

Answer: Option B. -> when the metancentre is above e.g
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1624. Center of buoyancy is the___________________?

centroid of the displaced volume of fluid
center of pressure of displaced volume
e.g. of floating ‘body
does not exist
none of the above

Discuss Question

Answer: Option A. -> centroid of the displaced volume of fluid
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1625. The horizontal component of buoyant force is__________________?

negligible
same as buoyant force
zero
non of these

Discuss Question

Answer: Option C. -> zero
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1626. If the atmospheric pressure on the surface of an oil tank (sp. gr. 0.8) is 0.2 kg/cm”, the pressure at a depth of 50 m below the oil surface will be _____________________?

2 meters of water column
3 meters of water column
5 meters of water column
6 meters of water Column
7 meters of water column

Discuss Question

Answer: Option D. -> 6 meters of water Column
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1627. Choose the wrong statement___________________?

The horizontal component of the hydro-static force on any surface is equal to the normal force on the vertical projection of the surface
The horizontal component acts through the center of pressure for the vertical projection
The vertical component of the hydrostatic force on any surface is equal to the weight of the volume of the liquid above the area
he vertical component passes through the center of pressure of the volume
Center of pressure acts at a greater depth than center of gravity

Discuss Question

Answer: Option D. -> he vertical component passes through the center of pressure of the volume
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1628. 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 ______________________?