500 terms for PIPE Flashcards
Is the most common dryer used which consist of rotating cylinder inside which materials flow while getting in contact with hot gas.
Rotary Dryer
The total heat of air is a function of:
WB Temperature
the Ratio of the mass of water-vapor in air and the mass of air if it is saturated is called:
Relative Humidity (RH)
The hands feel painfully cold when the skin temperature reaches
10 deg. C
pila kabook fingers sa hands? 10!!!
The refrigerant used in steam jet cooling is:
Water
Steam = water
Boiling point of Freon-12 at atmospheric pressure is:
21 deg. F
baliktad sa 12 (from FREON-12)
Which of the following is NOT a type of water-cooled condenser in refrigeration?
Shell and Coil
Component of absorption refrigeration system in which the solution is cooled by cooling water:
Absorber
Cascade refrigeration cycle is often used in industrial process where objects must be cooled to temperature below:
-46 deg. C
Type of refrigeration control designed to maintain a pressure difference while the compressor is operating.
Capillary Tube
As a rule of thumb, for a specified amount of compressed air, the power consumption of the compressor decreases by ____ for each 3deg.C drop in the temperature inlet air to the compressor.
1 percent
Modern day way of detecting air compressor leak
Acoustic Leak detector
For foundation of stacks, the maximum pressure on the soil is equal to the pressure due to the weight and the ____
wind movement
foundation bolts of specified size should be used and surrounded by a pipe sleeve with an inside diameter of at least
3 times the diameter of anchor bolt
for multi-compression of an ideal brayton cycle, the back work ratio will
decrease
type of turbine that has a specific speed below 5.
Impulse turbine
a high discharge type of turbine
propeller turbine
used to minimize the speed rise due to a sudden load rejection
Jet deflector
is the speed of a turbine when the head on the turbine is one meter
unit speed
is a fluid property which refers to the intermolecular attraction by which the separate particles of the fluid arc held together
cohesion
which of the ff. is not the cause of black smoke in diesel engine?
high compression pressure
which of the ff. is not a method of starting a diesel engine?
Using another generator
Two-stroke engine performs ____ to complete one cycle
compression and power stroke
A type of geothermal plant used when there is a presence of brine extracted from underground
Binary geothermal plant
most important safety device on the power boiler
safety boiler
During hydrostatic test, the safety valves should be
removed
Where deaerating heaters are not employed, it is recommended that the temperature of the feed water be not less than _
197 deg.C
It is a reaction during which chemical energy is
released in the form of heat.
Exothermic Reaction
By reheating the steam in an ideal Ranking cycle
the heat rejected will:
increase
By increasing the boiler pressure in Rankine cycle the moisture content at boiler exit will:
increase
Presently the highest steam temperature allowed at the turbine inlet is about ____
620 deg.C
Two most common gases employed in Stirling and Ericsson cycles are:
Hydrogen and Helium
In most commen designs of Gas turbine, the pressure ratio ranges from:
11 to 16
In Brayton cycle, the heat is transformed during what process?
isobaric process
The fuel injection process in diesel engine starts when the piston ___
approaches TDC
I the cut-off ratio of diesel cycle increases, the cycle efficlency will
decrease
The fuel used in a power plant that is used during peak periods.
Liquid
Typical compression ratio of Otto cycle is
8
If Joule Thompson coefficient is equal to zero, then the process will become
isothermal
I the fluid passed through a nozzle its entropy will:
remain the same
Refrigerants consisting of mixtures of two or more different chemical compounds, often used individually as refrigerants for other applications.
blends
An enclosed passageway that limits travel to a single path.
corridor
Pairs of mating stop valves that* allow sections of a system to be joined* before opening these valves or separated after closing them
Companion valve
For immediate dangerous to life or health (IDHL), the maximum concentration from which unprotected persons are able to escape within _____ without escape-impairing symptoms or irreversible health.
30 minutes
Is also known as deaerator.
open heater
The volume as determined from internal dimensions of the container with no allowance for the volume of internal parts.
internal gross volume
A walting room or large hallway serving as a waiting room.
lobby
A *continuous and unobstructed path* of travel from any point in a bullding or structure to a public way.
mean of aggress
Any device or portion of the equipment used to increase refrigerant pressure.
pressure-imposing element
The quantity of refrigerant stored at some point is the refrigeration system for operaticnal, service, or standby purposes.
pumpdown charge
Secondary refrigerant is a liquid used for the tramsmission of heat, without a change of state, and having no flash point or a flash point above ____ as determined from ASTM.
150deg. F
A dryer type In which material to be dried is supported on a floor through which the hot gases pass. This dryer is used for copra, coal, and enamel wares.
