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FLUID MECHANICS_Q1

Total questions: 15

Worksheet time: 14mins

Name
Class
Date
1.

The study of the motion of fluids that can be approximated as incompressible (such as liquids, especially water, and gases at low speeds)

a)

Hydrodynamics

b)

Aerodynamics

c)

Gas Dynamics

d)

Hydraulics

2.

It deals with the flow of fluids over bodies such as aircraft, rockets, and automobiles at high or low speeds.

a)

Hydrodynamics

b)

Aerodynamics

c)

Gas Dynamics

d)

Hydraulics

3.

It deals with liquid flows in pipes and open channels.

a)

Hydrodynamics

b)

Aerodynamics

c)

Gas Dynamics

d)

Hydraulics

4.

It deals with the flow of fluids that undergo significant density changes, such as the flow of gases through nozzles at high speeds.

a)

Hydrodynamics

b)

Aerodynamics

c)

Gas Dynamics

d)

Hydraulics

5.

Fluid mechanics deals with the following naturally occurring flows EXCEPT_.

a)

Meteorology

b)

Hydrology

c)

Geography

d)

Oceanography

6.

They invented the airplane through application of theory and determined experimentation.

a)

Wright

b)

Archimedes

c)

Newton

d)

Pascal

7.

He formulated and applied the buoyancy principle in history’s first non destructive test to determine the gold content of the crown of King Hiero II.

a)

Wright

b)

Archimedes

c)

Newton

d)

Pascal

8.

It is the condition of flow when fluid layer do not slip i.e. fluid layer sticks to the solid surface.

a)

no slip condition

b)

open system

c)

close system

d)

fluid flow condition

9.

The flow is characterised by highly ordered smooth streamlines that essentially move parallel to each other.

a)

laminar flow

b)

turbulent flow

c)

steady flow

d)

unsteady flow

10.

When the fluid is made to flow over a surface or in a duct by means of an external device .

a)

compressible flow

b)

incompressible flow

c)

natural flow

d)

forced flow

11.

A system when the context makes it clear) consists of a fixed amount of mass, and no mass can cross its boundary.

a)

open system

b)

closed system

c)

control volume

d)

control gravity

12.

It usually encloses a device that involves mass flow such as a compressor, turbine, or nozzle.

a)

open system

b)

closed system

c)

control mass

d)

control gravity

13.

It is a quantity of matter or a region in space chosen for study

a)

system

b)

boundary

c)

surroundings

d)

volume

14.

The density of lead is 11.4 g/cm3 at 25°C.  Calculate the volume occupied by 25.0 g of lead.

a)

0.456 cm3   

b)

2.19 cm3   

c)

285 cm3   

d)

2.193 cm3

15.

What is the density of copper if 11.8 cm3 of copper has a mass of 105.2 g?

a)

0.891 g/cm3   

b)

8.92 g/cm3   

c)

8.915 g/cm3   

d)

8.90 g/cm3