A flow meter (a) Sight glass (b) Rotameter )RTD (d) Transmitter allows Buid t mo

Question

A flow meter (a) Sight glass (b) Rotameter )RTD (d) Transmitter allows Buid t move through a clear tube that has a o s a 09. When an operator selects the desired process variable on a controller, it is referred to as the (a) Process target (b) Process setpoint (c) Process guidelines (d) Process cap Q10. The primary elements used to detect flow include all of the following except__ (a) Orifice plate (b) Venturi tube (c) weir and level measuring device (d) Oval gear (e) Thermal well Q11. A flow control loop most closely resembles (a) Thermocouple, transmitter, controller, transducer, control valve (b) Orifice plate, transmitter, controller, transducer, actuator (c) Venturi tube, transmitter, controller, transducer, control valve (d) b and c (e) None of the above Q12. A deaerator is a device used to (a) Remove air from water (b) Remove hydrocarbons from condensate (c) Enrich oxygen content in boiler feed water (d) Store treated boiler feed water

Explanation / Answer

Answer to question number 8)

The question describes an object which is a floater or a ball which is kept in the tube where fluid is flowing across the ball. This piece of flow instrument is nothing but a flow meter popularly known as "Rotameter"

Hence correct option is option b) Rotameter

Answer to question number 9)

When a process variable is frozen for a controller it is nothing but a set point. Which later on helps in identifying the error in the system by comparing it with the on ging value and help controller take the corrective action for that error that has been formed.

Hence the correct option is b) Process set point

Answer to question no.10)

Over here we will have to go by option. As can be seen from the option provided orifice plate, venturi meter, weir and level measuring device and oval gear, all of these are flow measuring instrument except thermal well which is a temperature sensing element

Hence the correct option is option e) Thermal well.

Answer to question number 11)

For a flow control loop one would require a flow meter to measure than a transmitter to transmit the flow. The flow will be transmitted to a controller where in it compares its values with the set point and the error correction will be sent to control valve to take the corrective action

From the option provided

Flow meter is venturi meter, than there is rest of the instrument explained above

Hence the correct option is option C) Venturi tube, transmitter, controller, transducer , control valve

Question number 12)

Deareter is generally used with boilers where oxygen, present in air, will be corrosive and corrode the MOC of the boilers, Hence it is used before boiler to remove as air from the water as possible

Hence the correct option is option a) Remove air from water.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.