The difference between the absolute pressure and the atmospheric pressure is called the _____ pressure.  A. Gage  B. Normal  C. Standard  D. Vacuum

The difference between the absolute pressure and the atmospheric pressure is called the _____ pressure.  A. Gage  B. Normal  C. Standard  D. Vacuum
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Description : What is the pressure below atmospheric pressure called?  A. Gage pressure  B. Absolute pressure  C. Atmospheric pressure  D. Vacuum pressure

Last Answer : Vacuum pressure

What is considered as the actual pressure at a given position and is measured relative to absolute vacuum?  A. Gage pressure  B. Absolute pressure  C. Atmospheric pressure  D. Vacuum pressure

Description : What is considered as the actual pressure at a given position and is measured relative to absolute vacuum?  A. Gage pressure  B. Absolute pressure  C. Atmospheric pressure  D. Vacuum pressure

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_________ is defined as that equivalent to the pressure due to a column of mercury 76cm long.  a. surface pressure  b. gage pressure  c. standard atmospheric pressure  d. isobaric pressure

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Last Answer : standard atmospheric pressure

A pressure gage registers 50 psig in a region where the barometer is 14.25 psia. Find absolute pressure in psia, Pa. (Formula; p = patm+ pg)  a. 433 kPa  b. 443 kPa  c. 343 kPa  d. None of the above

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Last Answer : 443 kPa

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A vacuum is connected to a tank reads 3kpa at a location w/ the barametric pressure reading is 75mmhg. Determined the P absolute in the tank  a. 70.658 kpa  b. 68 kpa  c. 58.78 kap  d. None of the above Pabs = Patm – Pvacuum

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Last Answer : 70.658 kpa

_________is the partial pressure of water vapor at the existing temperature divided by the equilibrium vapor pressure of water at the existing temperature.  a. vacuum pressure  b. relative humidity  c. absolute pressure  d. vapor pressure

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The condition of perfect vacuum, i.e., absolute zero pressure can be attained at  (a) a temperature of – 273.16°C  (b) a temperature of 0°C  (c) a temperature of 273 °K  (d) a negative pressure and 0°C temperature  (e) can’t be attained.

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Absolute zero pressure will occur  (a) at sea level  (b) at the center of the earth  (c) when molecular momentum of the system becomes zero  (d) under vacuum conditions  (e) at a temperature of – 273 °K

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Which of the following is correct?  A. Absolute pressure = Gauge pressure + Atmospheric pressure  B. Gauge pressure = Absolute pressure + Atmospheric pressure  C. Atmospheric pressure = Absolute pressure + Gauge pressure  D. Absolute pressure = Gauge pressure – Atmospheric pressure

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The volume of a gas under standard atmospheric pressure & 76 cmHg is 200m³. What is the volume when pressure is 80 cmHg if the temperature is unchanged?  a) 180 in³  b) 170 in³  c) 160 in³  d) 190 in³ Formula: P2V2 = P1V1

Description : The volume of a gas under standard atmospheric pressure & 76 cmHg is 200m³. What is the volume when pressure is 80 cmHg if the temperature is unchanged?  a) 180 in³  b) 170 in³  c) 160 in³  d) 190 in³ Formula: P2V2 = P1V1

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A vertical column of water will be supported to what height by standard atmospheric pressure. If the Y w = 62.4lb/ft3 po = 14.7 psi.  a. 44.9 ft  b. 33.9 ft  c. 22.9 ft  d. 55.9 ft formula: ho= po/Yw

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Last Answer : 33.9 ft

A vertical column of water will be supported to what height by standard atmospheric pressure.  a. 33.9 ft  b. 45 ft  c. 67 ft  d. 25.46 ft ho= Po/Yo

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Last Answer : 33.9 ft

Which of the following is NOT a value of the standard atmospheric pressure?  A. 1 bar  B. 1 atm  C. 1 kgf/cm^2  D. 14.223 psi

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Instrument used to measure the absolute pressure of the atmosphere  a. galvanometer  b. thermometer  c. barometer  d. pressure gages

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“If the temperature o f a fixed quantity of a gas is held constant during a change of state, the volume varies inversely with the absolute pressure.  a. Charle’s Law  b. Boyle’s Law  c. Dalton’s Law  d. Amagat’s Law

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Last Answer : Answer: A

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According to Gay-Lussac law, the absolute pressure of a given mass of a perfect gas varies __________ as its absolute temperature, when the volume remains constant.  A. directly  B. indirectly

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According to kinetic theory of gases, the absolute zero temperature is attained when  (a) volume of the gas is zero  (b) pressure of the gas is zero  (c) kinetic energy of the molecules is zero  (d) specific heat of gas is zero  (e) mass is zero.

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Last Answer : Answer : c

According to Gay-Lussac law for a perfect gas, the absolute pressure of given mass varies directly as  (a) temperature  (b) absolute  (c) absolute temperature, if volume is kept constant (d) volume, if temperature is kept constant  (e) remains constant,if volume and temperature are kept constant.

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Last Answer : Answer : c

A unit of pressure used in high vacuum technology, which is equal to 1mmhg.  a. specific heat  b. isometric  c. isobaric  d. torr

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No liquid can exist as liquid at  (a) – 273 °K  (b) vacuum  (c) zero pressure  (d) centre of earth  (e) in space.

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Occurs when the vapor pressure equals the atmospheric pressure  a. Boiling  b. Melting  c. Freezing  d. Vaporizing

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What is the temperature when water and vapor are in equilibrium with the atmospheric pressure?  a. Ice point  b. Steam point  c. Critical point  d. Freezing point

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What is the temperature when water and vapor are in the equilibrium with the atmospheric pressure?  a. Ice point  b. Steam point  c. Critical point  d. Freezing point

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A _______ is used to measure atmospheric pressure.  a. Thermometer  b. Barometer  c. Manometer  d. None of the above

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While swimming at depth of120m in a fresh water lake, A fish emits an air bubbles of volume 2.0mm³ atmospheric pressure is 100kPa. What is the pressure of the bubble?  a) 217.7 kPa  b) 317.7 kPa  c) 417.7 kPa  d) 517.7 kPa Formula: P= δh

Description : While swimming at depth of120m in a fresh water lake, A fish emits an air bubbles of volume 2.0mm³ atmospheric pressure is 100kPa. What is the pressure of the bubble?  a) 217.7 kPa  b) 317.7 kPa  c) 417.7 kPa  d) 517.7 kPa Formula: P= δh

Last Answer : 217.7 kPa

While swimming a depth of 13m in a fresh water lake a fish emits an air bubble of volume 2 mm² atmospheric pressure is 100kpa what is the original pressure of the bubble.  a. 217.17 kpa  b. 119 kpa  c. 326.15 kpa  d. 210 kap Pabs = Pg + Patm

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Last Answer : 217.17 kpa

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Water boils when:  A. Its saturated vapor pressure equals to the atmospheric pressure  B. Its vapor pressure equals 76cm of mercury  C. Its temperature reaches 212 degree Celsius  D. Its vapor pressure is 1 gram per sq. cm

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Last Answer : Its saturated vapor pressure equals to the atmospheric pressure

What instrument is used to measure atmospheric pressure?  A. Pitot tube  B. Wind vane  C. Barometer  D. Manometer

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Last Answer : Barometer

One barometric pressure or 1 atmospheric pressure is equal to  (a) 1 kgf/cnr2  (b) 1.033 kgf/cm2  (c) 0 kgf/cm2  (d) 1.0197 kgf/cm2  (e) 100 kgf/cm2.

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Last Answer : Answer : b

Water contained in a beaker can be made to boil by passing steam through it  (a) at atmospheric pressure  (b) at a pressure below the firuosphejric pressure  (c) at a pressure greater than atmospheric pressure  (d) any pressure  (e) not possible.

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Last Answer : Answer : c

For which of the following substances, the gas laws can be used with minimum error  (a) dry steam  (b) wet steam  (c) saturated steam  (d) superheated steam  (e) steam at atmospheric pressure.

Description : For which of the following substances, the gas laws can be used with minimum error  (a) dry steam  (b) wet steam  (c) saturated steam  (d) superheated steam  (e) steam at atmospheric pressure.

Last Answer : Answer : d

According to Dalton’s law, the total pres sure of the mixture of gases is equal to  (a) greater of the partial pressures of all  (b) average of the partial pressures of all  (c) sum of the partial pressures of all  (d) sum of the partial pressures of all divided by average molecular weight  (e) atmospheric pressure.

Description : According to Dalton's law, the total pres sure of the mixture of gases is equal to  (a) greater of the partial pressures of all  (b) average of the partial pressures of all  (c) sum ... all  (d) sum of the partial pressures of all divided by average molecular weight  (e) atmospheric pressure.

Last Answer : Answer : c

Working principle of manometer comprises of balancing a coloumn of liquid against the pressure to be measured. Inclined tube manometer is especially used for the measurement of __________ pressure. (A) Small differential (B) Atmospheric (C) Absolute (D) Gage

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Last Answer : (A) Small differential

Pick out the wrong statement. (A) In a static mass of liquid, the pressure at a point is the same for all liquids (B) Pressure decreases exponentially with elevation in an isothermal atmosphere(C) Atmospheric pressure = absolute pressure ‒ gage pressure(D) As per Pascal's law, the pressure at a point in a static or uniformlymoving fluid is equal in all directions

Description : Pick out the wrong statement. (A) In a static mass of liquid, the pressure at a point is the same for all liquids (B) Pressure decreases exponentially with elevation in an isothermal atmosphere (C) ... s law, the pressure at a point in a static or uniformly moving fluid is equal in all directions

Last Answer : (A) In a static mass of liquid, the pressure at a point is the same for all liquids

Also called absolute humidity and specific humidity.  a. Related humidity  b. Humidity ratio  c. Dew point  d. Adiabatic ratio

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If a fluid expands suddenly into vacuum through an orifice of large dimension, then such a process is called  (a) free expansion  (b) hyperbolic expansion  (c) adiabatic expansion  (d) parabolic expansion  (e) throttling.

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Last Answer : Answer : a

An adiabatic process in which there is no change in system enthalpy but for which there is a significant decrease in pressure is called _____.  A. Isochoric process  B. Isobaric process  C. Throttling process  D. Quasistatic process

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Last Answer : Throttling process

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Last Answer : Loschmidt number

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Last Answer : in equilibrium

Which of the following is standard temperature and pressure (STP)?  A. 0 degree Celsius and one atmosphere  B. 32 degree Fahrenheit and zero pressure  C. 0 degree Kelvin and one atmosphere  D. 0 degree Fahrenheit and zero pressure

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Last Answer : 0 degree Celsius and one atmosphere