Weekly Eval 02 - PIPE

In pipe specification, schedule number is used; when the pipe is specified as “Schedule 80”, the pipe corresponds to the

“old standard weight”

At steam point, the temperatures of water and its vapor at standard pressure are

in equilibrium

The ratio of cross-sectional area of flow to the wetted perimeter is

hydraulic mean depth

The process in which heat energy is transferred to a thermal energy storage device is known as

regeneration

Property of a fluid whereby its own molecules are attracted

cohesion

The volumetric change caused by resistance

adhesion

When the water in the products of combustion is in the vapor state, the heating value is

lower heating value

When the air is saturated, the wet bulb depression is

zero

Which of the following statements is correct? The relative humidity of an air water vapor mixture…

is the ratio of the partial pressure of water vapor to the saturation pressure at the mixture temperature

In sensible cooling process, moisture content

does not change

In actual head, neglecting the kinetic energy in which the pump work against

pressure head

The thermal efficiency of gas-vapor cycle as compared to steam turbine or gas turbine

greater than

What is the temperature when water and vapor are in equilibrium with the atmospheric pressure?

Steam point