Quiz based on troubleshooting

Welcome to your Quiz.

This quiz is about Troubleshooting. it contains 20 questions

1.

A breadboarding area is:

a data routing circuit

used to design or test electronic circuits

a code-converting circuit

a temporary binary storage area

2.

What kind of wires in a process control loop would most likely be shielded cables?

power wires

ground wires

signal wires

control wires

3.

Impulse lines are used with:

Pressure meters

magnetic flowmeters

positive displacement meters.

open charmel meters

4.

The dead band of an instrument is:

the band that prevents the instrument from being tampered with by unau thorized persons

the range of valves for which the instrument gives inaccurate readings

the size of the instrument indicated by the divisions on the scale of the instrument

the range that an input signal may be changed on reversal of direction without an observable change in the output

5.

A ground loop on shielded cable can be avoided by:

attaching a safety ground to the instrument casing

grounding the shield at only one end of the circuit

attaching a safety ground to the control panel

grounding the shield at both ends of the cable

6.

Which type of flowmeter does a rotor mounted axially within a pipe between a set of bearings describe

magnetic

turbine

water meter

venturi tube

7.

The body of a valve may contain packing material that prevents leakage:

along the valve stem.

between the seat and the disk

between the bonnet and the body

between the inlet and outlet ports of the valve

8.

If the range of a 3-15 psi pneumatic transmitter is 50-350 degrees F, what is the output signal value, in psi, at 198 degrees F?

5.7

7.2

8.9

12.6

9.

Which type of flowmeter measures flows by measuring volume directly?

coriolis

magnetic

positive displacement

differential pressure

10.

A continuity check should be made prior to hook-up of a field transmitter to the control room so that the technician:

can assure that the transmitter is being hooked-up to the proper indicator/controller

can make sure that the proper voltages are present

can make sure that he continue hook-up on a particular transmitter

knows that he may connect another transmitter to the loop circuit

11.

A meter reading of 1 ohm between an ungrounded signal lead and the earth ground indicates a problem of:

a lead having an unwanted connection to ground

an open circuit from the lead to ground

an open circuit from the lead to the casing

none of the above

12.

A device used to change an analog signal to a digital signal is most often called a:

transducer

signal conditioner

transmitter

converter

13.

Which of the following parts of a globe valve serves the same purpose as the disk in a butterfly valve?

seat

plug

packing rings

packing flange

14.

Which meter does not use an obstruction?

head meter

magnetic meter

open channel meter

turbine meter

15.

The Coriolis effect is associated with the:

head meter

mass flowmeter

positive displacement meter

turbine meter

16.

When the percentage of flow through a valve equals the percentage of plug movement, a valve has:

linear flow characteristic

equal percentage flow characteristic

quick opening flow characteristic

curved flow characteristic

17.

The process of grinding the plug and seat of a valve is called:

characterizing

linearizing

lapping

calibrating

18.

What occurs if the temperature of the thermocouple measuring junction is lower than the reference junction?

There is no emf output.

The output voltage polarity is reversed

The polarity stays the same but voltage increases.

The emf remains the same when temperature changes

19.

A 4-20 mA electronic transmitter has an input range of 50-330 degrees F. If the C output is 13.77 mA, what is the indicated temperature in degrees F?

173

221

266

302

20.

What is a thermowell?

protective tube

type of manometer

expandable bulb

reservoir

Welcome to your Quiz.

This quiz is about Troubleshooting. it contains 20 questions

A breadboarding area is:

What kind of wires in a process control loop would most likely be shielded cables?

Impulse lines are used with:

The dead band of an instrument is:

A ground loop on shielded cable can be avoided by:

Which type of flowmeter does a rotor mounted axially within a pipe between a set of bearings describe

The body of a valve may contain packing material that prevents leakage:

If the range of a 3-15 psi pneumatic transmitter is 50-350 degrees F, what is the output signal value, in psi, at 198 degrees F?

Which type of flowmeter measures flows by measuring volume directly?

A continuity check should be made prior to hook-up of a field transmitter to the control room so that the technician:

A meter reading of 1 ohm between an ungrounded signal lead and the earth ground indicates a problem of:

A device used to change an analog signal to a digital signal is most often called a:

Which of the following parts of a globe valve serves the same purpose as the disk in a butterfly valve?

Which meter does not use an obstruction?

The Coriolis effect is associated with the:

When the percentage of flow through a valve equals the percentage of plug movement, a valve has:

The process of grinding the plug and seat of a valve is called:

What occurs if the temperature of the thermocouple measuring junction is lower than the reference junction?

A 4-20 mA electronic transmitter has an input range of 50-330 degrees F. If the C output is 13.77 mA, what is the indicated temperature in degrees F?

What is a thermowell?

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