Question 1

The amount of fluid passing a section of a stream in unit time is called?

Accepted Answer

Discharge or Flow Rate

Question 2

The ratio of inertial forces to viscous forces is called?

Accepted Answer

REYNOLDS NUMBER

Question 3

Flow is said to be _________ when the paths of the individual particles do not cross or intersect.

Accepted Answer

LAMINAR

Question 4

The flow is said to be ________ when its path lines are irregular curves and continuously cross each other.

Accepted Answer

TURBULENT

Question 5

By the principle of conservation of mass, _____________ occurs when at any time, the discharge Q at every section of the stream is the same.

Accepted Answer

CONTINUOS FLOW

Question 6

The two commonly recognized forms of energy.

Accepted Answer

Kinetic energy and potential energy

Question 7

The ability of a mass to do work by virtue of its velocity is called?

Accepted Answer

Kinetic energy

Question 8

In connection to the action of gravity, ________________ is manifested in a fluid by virtue of its position or elevation with respect to a horizontal datum plane.

Accepted Answer

Elevation Energy

Question 9

A mass of fluid acquires_____________when it is in contact with other masses having some form of energy.

Accepted Answer

Pressure Energy

Question 10

_______________ in a fluid is the sum of kinetic and potential energies. Recall that potential energies are pressure energy and elevation energy.

Accepted Answer

TOTAL ENERGY OF FLOW

Question 11

The rate of doing work per unit of time is called?

Accepted Answer

Power

Question 12

It is the ratio of the actual discharge through the device to the ideal or theoretical discharge which would occur without losses.

Accepted Answer

Coefficient of Discharge, C or Cd

Question 13

The ratio of the actual mean velocity to the ideal or theoretical velocity which would occur without any losses.

Accepted Answer

Coefficient of Velocity, Cv

Question 14

The ratio of the actual area of the contracted section of the stream or jet to the area of the opening through which the fluid flows.

Accepted Answer

Coefficient of Contraction, Cc

Question 15

is an opening (usually circular) with a closed perimeter through which fluid flows. It is used primarily to measure or to control the flow of fluid.

Accepted Answer

Orifice

Question 16

is an instrument used in measuring the discharge through pipes.

Accepted Answer

Venturi Meter

Question 17

is a converging tube installed at the end of a pipe or hose for the purpose of increasing the velocity of the issuing jet.

Accepted Answer

NOZZLE

Question 18

is a bent (L-shaped or U- shaped) tube with both ends open and is used to measure the velocity of fluid flow or velocity of  air flow as used in airplane speedometer.

Accepted Answer

PITOT TUBE

Question 19

are overflow structures which are built across an open channel for the purpose of measuring or controlling the flow of liquids.

Accepted Answer

Weir

Question 20

are trapezoidal weirs with side slope of 1 horizontal to 4 vertical.

Accepted Answer

CIPOLLETI WEIR

Question 21

are conduits in which fluid flows with a free surface.

Accepted Answer

Open Channel

Question 22

is also the depth of maximum discharge, when the specific energy is held constant.

Accepted Answer

CRITICAL DEPTH

Hydraulics Reviewer module 7,8,&9