Test
Industrial controls ch 10
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Preguntas del test (24)
1What are the most common units for pressure measurements In the English system. [blank_start]psi[blank_end]
- Apsi
2 Physically speaking what is pressure (the formula)? Use full words [blank_start]Pressure=Force/Area[blank_end]
- APressure=Force/Area
3List two reasons for accurately measuring and controlling pressure in a process control system
- AYou don't want pressure to become too great
- BTo ensure quality of products that need specific pressure and temperatures
- CTo have the flow going not too fast or too slow
4Calculate the hydrostatic pressure of a twelve (12) foot column of water. (The weight of a cubic foot of water is 62.4 pounds) [blank_start]108.96[blank_end] psi
- A108.96
5What is the specific gravity (s.g) of water? [blank_start]one[blank_end]
- Aone
66. Calculate the hydrostatic pressure of a twelve (12) foot column of liquid with s.g. of 0.79 [blank_start]4.11[blank_end]
- A4.11
77. Estimate the specific gravity of wood. Estimate the specific gravity of the human body. [blank_start].73[blank_end] and [blank_start]1.03[blank_end]
- A.73
- B1.03
88. What is atmospheric pressure at sea level worldwide? [blank_start]14.7[blank_end] psi
- A14.7
99. Estimate atmospheric pressure in Steubenville, Ohio 1080 feet above sea level. (Atmospheric
pressure in Mexico City is 11.1 psi at altitude of about 7800 feet) [blank_start]14.14[blank_end]- A14.14
100. Estimate the atmospheric pressure in Death Valley, California. (about 280 feet below sea level) [blank_start]14.85[blank_end]
- A14.85
11Does the temperature, pressure and volume have to be controlled while using gas.
- AVerdadero
- BFalso
12What does the acronym PSIA stand for? [blank_start]here[blank_end] What is the reference level of pressure for PSlA? [blank_start]here[blank_end]
What does the acronym PSIG stand for? [blank_start]here[blank_end] What is the reference level of pressure for PSIG? [blank_start]here[blank_end]
What does the acronym PSIV stand for? [blank_start]here[blank_end] What is the reference level of pressure for PSIV? [blank_start]here[blank_end]
What does the acronym PSID stand for? [blank_start]here[blank_end] Why is this type of pressure measurement important? [blank_start]here[blank_end]- APressure per sq inch absolute
- B0
- CGauge pressure
- DVacuum pressure
- E7 psig
- F-50 mm Hg
- GPressure sq in derivative
- HThe difference between pressures
13ls PSIG or PSlA generally a more accurate pressure measurement?
- Apsig because it includes gravity
- Bpsia because its absolute with no other pressure
14Convert 64.7 PSlA to PSIG [blank_start]50[blank_end] psia
- A50
15Convert 10 PSIG to PSlA[blank_start].[blank_end]
- A24.7
16What would a -14.7 PSIV measurement represent? [blank_start]Pure Vacuum[blank_end]
- APure Vacuum
17How are vacuum measurements normally expressed? [blank_start]Hg[blank_end]
- AHg
18What is a manometer? [blank_start]here[blank_end]
- AA u shaped tube that measures pressure
- BA circle shaped tube that measures psi
- CA box with an opening for pressure
19Describe/sketch how mechanical bourdon tubes develop pressure readings
- AC shaped metal tube while the pressure causes the coil to unwind making a reading.
- BHas a flat flexible material that pushes a spring which can measure psid,psig, or psia
- CAn accordion like elastic that expands and causes a larger needle to move.
20Describe/sketch how diaphragm gauges develop pressure readings
- AC shaped metal tube while the pressure causes the coil to unwind making a reading.
- BHas a flat flexible material that pushes a spring which can measure psid,psig, or psia
- CAn accordion like elastic that expands and causes a larger needle to move.
21Describe/sketch how bellows gauges develop pressure readings.
- AC shaped metal tube while the pressure causes the coil to unwind making a reading.
- BHas a flat flexible material that pushes a spring which can measure psid,psig, or psia
- CAn accordion like elastic that expands and causes a larger needle to move.
22Describe the operation of a semiconductor strain gauge.
Describe the operation of transverse voltage strain gauge.
Describe the operation of variable capacitor pressure detector.- Asemiconductor Detects the strain on a body caused by force.
Voltage strain pressure is applied to the diaphragm at a right degree angle causing it to bend
Variable Capacitor two conductive plates push each other from each other when pressure is applied - Bsemiconductor pressure is applied to the diaphragm at a right degree angle causing it to bend
Voltage Strain Detects the strain on a body caused by force.
Variable Capacitor two conductive plates push each other from each other when pressure is applied - Csemiconductor two conductive plates push each other from each other when pressure is applied
Voltage Strain pressure is applied to the diaphragm at a right degree angle causing it to bend
Variable Capacitor Detects the strain on a body caused by force.
- Asemiconductor Detects the strain on a body caused by force.
23What do hydraulic, pneumatic, vacuum, static and steam pressure systems all have in common? [blank_start]pressure[blank_end]
- Apressure
24List as many energy sources as you can for steam pressure system
- Aboiler
- Bheat
- Cwater
- Dsteam
- Eketchup
- Fwind
- Gfire
Información
- Descripción
- Engineering Test sobre Industrial controls ch 10, creado por jerry polen el 10/05/2017.
- Autor
- jerry polen
- Idioma
- English
- Visitas
- 4
- Etiquetas
- Valoración
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