Quiz 4/Mod 7 20 MC ( see listed Text pages as well 19, 20, 21, 22

Question 1

What can be implied from the following installation?

A) the tank is open to atmosphere
B) the transmitter has an elevated zero
C) the device measures density
D) the tank is pressurized

Answer 1

A) the tank is open to atmosphere

Question 2

A steam turbine operates on the principle that when:

A) a cool fluid, under pressure, is allowed to expand and release energy into the surroundings

B) a heated fluid, under pressure, is allowed to expand it will release energy into the surroundings

C) a heated fluid, under pressure, is compressed and will release energy into the surrounding

D) a heated fluid, under pressure, is allowed to cool it will release energy into the surroundings

Answer 2

B) a heated fluid, under pressure, is allowed to expand it will release energy into the surrounding

Question 3

Liquids from natural gases can be produced using:

A) a dehydration micro sieve column
B) a turboexpander, cryogenic process
C) the Claus process
D) a turbo compressor, cryogenic process

Answer 3

B) a turboexpander, cryogenic process

Question 4

An evaporator…

A) separates liquids into constituent liquid components

B) works best using natural evaporation

C) uses distillation to separate the solids from the liquid phase; which then can be scrapped off as a product.

D) makes more efficient use of energy if done in stages

Answer 4

D) makes more efficient use of energy if done in stages

Question 5

When we see an increase in heat loss in a boiler turbine, we would see:

A) a decrease in efficiency due to unrecoverable heat loss

B) a decrease in efficiency due to poor inlet water quality; which has a lower specific heat value.

C) an decrease in efficiency due to the high pressure design of the boiler

D) an increase in efficiency due to the extra heat being converted to mechanical energy

Answer 5

A) a decrease in efficiency due to unrecoverable heat loss

Question 6

Vacuum distillation can be used for separating:

A) light, low vapor pressure components
B) heavy, high vapor pressure components
C) heavy, low vapor pressure components
D) light, high vapor pressure components

Answer 6

C) heavy, low vapor pressure components

Question 7

Separation in a depropanizer is due to the fact that:

A) components have different densities
B) components have different molecular weights
C) components have different boiling points
D) components have different specific heat values.

Answer 7

C) components have different boiling points

Question 8

Condensate is made up of components of:

A) NGLs
B) sout crude
C) sweet crude
D) LPGs

Answer 8

A) NGLs

Question 9

What is the silver circular component called that is attached to the blue part?

A) a capacitance sensor
B) a strain gauge peizioelectric differential transmitter
C) a differential transmitter
D) a bellows sensor

Answer 9

A) a capacitance sensor

Question 10

What else needs to be known in order to infer the liquid level in an open tank, beside pressure and density?

A) Fluid inlet flow rate
B) local gravitational constant
C) Temperature
D) Fluid outlet flow rate

Answer 10

B) local gravitational constant

Question 11

The super heater:

A) changes the steam to high pressure liquids
B) increases the liquid content so that the turbine will not run dry
C) changes the vapor pressure of the steam
D) increases the efficiency of the HP, IP, LP turbine stages

Answer 11

D) increases the efficiency of the HP, IP, LP turbine stages

Question 12

What type of metering is illustrated here?

A) vortex shedding
B) mass
C) velocity
D) differential pressure

Answer 12

D) differential pressure

Question 13

What other information is required to convert a volumetric flow rate to a mass flow rate?

A) density
B) temperature
C) vapor pressure
D) pressure

Answer 13

A) density

Question 14

NGLs are:

A) components of natural gas that can exist as a gas under pressure in a container, but will liquify at room temperature when released.

B) components of natural gas that exist as a liquid at room temperatures and normal atmospheric pressures

C) components of natural gas that exist as a liquid, but only in an enclosed vessel under high temperatures

D) components of natural gas that can exist as a liquid at room temperature in a closed vessel under pressure.

Answer 14

D) components of natural gas that can exist as a liquid at room temperature in a closed vessel under pressure.

Question 15

What is not considered a measurement that can be inferred from a single pressure transmitter?

A) Flow
B) Liquid Density
C) Liquid Level
D) Mass

Answer 15

B) Liquid Density

Question 16

What happens to the steam, after it passes through the low pressure stage of a turbine?

A) It is used as cooling water
B) It is condensed to water and fed back to the boiler
C) It is condensed to water and fed back to the inlet of the turbine
D) It is sent to a dehydration unit

Answer 16

B) It is condensed to water and fed back to the boiler

Question 17

Which word describes “ a process where certain molecules from a fluid stream will move onto the surface of a solid substance”

A) Adsorption
B) Absorption
C) Distillation
D) Desication

Answer 17

A) Adsorption

Question 18

If the sensor shown above has two different types of metallic wires then the sensor must be:

A) a thermocouple
B) a thermogenerator
C) a thermometer
D) an RTD

Answer 18

A) a thermocouple

Question 19

Reciprocating compressors are designed to move

A) liquids at a low discharge pressure
B) gas a low discharge pressures
C) gas a high discharge pressures
D) liquids at a high discharge pressure

Answer 19

C) gas a high discharge pressures

Question 20

How can pressure fluctuations be minimized in a bubbler system?

A) reduce the regulator pressure
B) cut a small notch in the bottom of the tube
C) smooth out the edges of the bottom of the tube
D) insert a filter screen on the bottom of the tube

Answer 20

B) cut a small notch in the bottom of the tube