Power Engineering 4A

The typical time required to heat a fluidized bed to ignition temperature prior to the introduction of coal is:

Select one:

a. Two hours

b. Three hours

c. One hour

d. 30 minutes

C

When welding thick materials, proper weld groove selection and preparation allows for:

Select one:

a. a quick weld

b. proper heat treatment

c. full penetration

d. omitting the root pass

C

An interrupted pilot of an automatic boiler:

Select one:

a. Ignites, is proven stable and extinguishes after the main flame is established

b. Is one that has been extinguished by an inadequate flame signal

c. Ignites before the main burner ignites, and is extinguished when the main burner is extinguished

d. Burns continuously, like that in a home furnace

A

In a fluidized bed boiler, a gradual loss of the fluidized bed, including fuel (carbon) particles, is due to:

Select one:

a. Priming

b. Sootblowing

c. Uplift

d. Carryover

D

The test material for a penetrant test (PT) must be:

Select one:

a. ferrous

b. non-ferrous

c. porous

d. non-porous

D

If your plant maintenance department neglects oil changes, filter replacement, and bearing lubrication, your plant will eventually need more unscheduled ___________ maintenance.

Select one:

a. Emergency

b. Preventative

c. Routine

d. Project

A

The holder of a Certificate of Competency, the classification of which authorises him or her to act as a engineer, may sketch, construct, install, operate, repair, and give advice on all things pertaining to any _____ in which that person is employed.

Select one:

a. Welding shop

b. Power plant

c. Fish plant

d. Hydro plant

B

Which of the following is a single pass boiler?

Select one:

a. HRT

b. Scotch marine

c. Packaged firetube

d. Vertical firetube

D

Iron and steel may be magnetized by rubbing the metal with a:

Select one:

a. Stainless steel

b. Steel wool

c. Brass rod

d. Magnet

D

The apparatus which converts current signals to pneumatic and pneumatic to current signals is called a:

Select one:

a. Transformer

b. Inverter

c. Transducer

d. Converter

C

Before a steam or air atomizing oil burner is removed from a boiler furnace, the burner should be blown out with:

Select one:

a. Steam or air

b. High temperature solvent

c. Coal oil

d. Solvent

A

Which of the following emissions is NOT considered a gaseous pollutant?

Select one:

a. Nitrogen

b. Methane

c. Sulphur oxides

d. Carbon monoxide

A

A thermostatic steam trap is controlled by the:

Select one:

a. Bucket, which flips when filled with condensate

b. Temperature difference between condensate and steam

c. air pressure built up on top of disk

d. Difference in velocity between condensate and steam

B

A typical application of forged steel in a power plant is:

Select one:

a. Ash handling systems

b. Superheated steam lines

c. Superheated steam lines

d. Pipe fittings

D

A disadvantage of an electric boiler is that it:

Select one:

a. Is very expensive to operate

b. Is inefficient

c. Requires alternating current

d. Has no chimney

A

The amount of air required to supply just enough oxygen for complete combustion is called the:

Select one:

a. Excess air

b. Perfect air

c. Primary air

d. Theoretical air

D

"Transpiration" is the process where:

Select one:

a. dissolved oxygen is expelled from water

b. water vapour goes through a phase change

c. plants release water

d. animals inhale oxygen

C

A Van Stone flange is fitted ___________ on a pipe:

Select one:

a. With evenly spaced set screws

b. Loosely

c. By threading coursely

d. with tack welds

B

Current transformers are:

Select one:

a. Voltage step-up transformers

b. K-type transformers

c. High power factor transformers

d. Current step-up transformers

A

A multi-burner cluster has secondary and tertiary nozzles ignited by:

Select one:

a. The primary burner

b. An interrupted pilot

c. An igniter spark

d. An intermittent pilot flame

A

The flow of electrons in a uniform direction is called:

Select one:

a. Voltage drop

b. Electric current flow

c. Potential difference

d. Electromotive flow

B

The advantage of using a venturi tube, rather than an orifice plate for flow measurement is it:

Select one:

a. Is less bulky

b. Requires only one pressure tap

c. Costs less to install

d. Produces less permanent pressure drop

D

A plant line tracing is a _________ that helps Power Engineers to learn a new plant:

Select one:

a. Process Flow Diagram

b. Formal Line Drawing

c. Single line sketch

d. Plant Instrumentation Diagram

C

Condensation losses in steam can be avoided by:

Select one:

a. Heating the steam to saturation temperature

b. Using wet steam

c. Using only high pressure steam

d. Installing steam separators

e. Using superheated steam

E

Cast iron pipe has a high resistance to:

Select one:

a. Corrosion

b. Temperature changes

c. Water pressure

d. Impacts

A

How can all Power Engineers reduce the production of CO2 in their plant?

Select one:

a. Maximize efficiency

b. Follow all procedures

c. Ensure air preheaters are in use

d. Use low carbon fuels

A

A car accelerates uniformly from rest to 6.1 m/s in 40 seconds. It continues at this velocity for an additional 60 seconds. Then it decelerates to a stop in 10 seconds. If the car traveled in a straight line during this time, determine the final distance from its original position.

Select one:

a. 122 m

b. 518.5 m

c. 9.15 m

d. 671 m

B

This group of members of jurisdictional bodies meets at least annually answering to the ACI they ensure that all Power Engineer examinations meet the requirements set by the jurisdictional legislative bodies.

Select one:

a. ANSI

b. ACI

c. SOPEEC

d. IPECC

e. ASME

C

A controller is a device that primarily:

Select one:

a. Is a logic device capable of making decisions

b. Records a system's performance

c. Tries to maintain a set point

d. Sends or transmits a positive rather than negative signal

C

The balanced equation for the incomplete combustion of carbon is:

Select one:

a. C + O2 = CO2 + heat

b. 2C + O2 = CO + heat

c. C + 2O2 = 2CO + heat

d. 2C + O2 = 2CO + heat

D

In order to provide uniform steam distribution to the individual tubes of a steam coil, steam coils are designed to

Select one:

a. Constantly eliminate air

b. Constantly eliminate condensate, air, and non-condensable gases

c. Constantly eliminate non-condensable gases

d. Be installed with counterflow

e. Provide minimal pressure drop across the coil

B

Types of maintenance is classified in the following categories:

Select one:

a. Notification, Submission, Review, and Approval

b. Completion, Projection, Extension, and Considerations

c. Routine, Preventative, Projects, and Emergency

d. Procurement, Inventory, Estimated, and Planned

C

Boiler manholes are openings through which a person can:

Select one:

a. Enter and inspect the steam header

b. Inspect, maintain or repair internal parts of a boiler

c. Enter the boiler furnace

d. Inspect the boiler uptake

B

The property that determines whether a material will be easily magnetized or not is called:

Select one:

a. Conductivity

b. Fluctuation

c. Magnetism

d. Permeability

D

Spills, seepages, and leaks can all be defined as:

Select one:

a. accidents

b. incidents

c. discharges

d. releases

D

Foam extinguishers are recommended for:

Select one:

a. Class "A" and Class "B" fires

b. Class "A" and Class "C" fires

c. Class "B" and Class "C" fires

d. All classes of fires

A

A bar is pivoted on the right end and a force is applied upwards on the left end. The rotation of the bar will be:

Select one:

a. Downward

b. Upward

c. Clockwise

d. Counter-clockwise

C

Which of these is a reason to NOT use standard operating procedures (SOP)?

Select one:

a. Use as a checklist for internal or external auditing

b. Allow operators to use their own methods of a procedure

c. Consistent implementation of a procedure

d. Reduce possibility of miscommunication

B

Radiators were traditionally made of:

Select one:

a. Steel

b. Cast iron

c. Stainless steel

d. Copper

e. Brass

B

Foundation or centre lines of a sketch should be:

Select one:

a. Always done to scale

b. Heavy, dashed lines

c. Drawn when first beginning to sketch

d. Very bold and extended

C

A uniformly applied force, acting at right angles to a surface, divided by the surface area, is defined as:

Select one:

a. Acceleration

b. Pressure

c. Weight

d. Surface area

B

During a soot blowing operation the boiler firing rate should be at least:

Select one:

a. 80%

b. 20%

c. 50%

d. 15%

C

Power engineers are:

Select one:

a. Automatically Safety code officers in a power plant

b. Qualified to perform any welding jobs in a power plant

c. Skilled workers who operate and maintain the equipment in a power plant

d. Qualified to make design changes in a power plant

C

What is the difference between a settling pond and a cooling pond?

Select one:

a. A settling pond is used only as part of a plant's cooling water cycle.

b. A cooling pond must be used with a cooling tower.

c. A settling pond is designed to reduce liquid pollution.

d. A cooling pond is used to remove particulate matter from cooling water.

C

The most common material for power plant piping is:

Select one:

a. Steel

b. Plastic and ABS

c. Alloyed nonferrous

d. Forged cast

A

Which is the workers responsibility?

Select one:

a. Clearly stated goals and objectives of the health and safety program

b. Clearly defined roles and responsibilities for management, workers, contractors, and visitors at the plant site

c. Co-operating with others on workplace safety and health

d. Issuing proper safety equipment to all workers

C

A discrete input is not:

Select one:

a. limit switch

b. temperature sensor

c. push button

d. proximity switch

B

What is it called when the filler metal in a weld does not extend through the entire thickness of the parent metal?

Select one:

a. incomplete penetration

b. incomplete fusion

c. porosity

d. a flaw

A

When conducting a weld inspection, "indications" in the weld:

Select one:

a. can always be found during a visual inspection

b. may be acceptable depending on the circumstances.

c. must cause a weld to be rejected

d. are found according to the methods laid out in ASME Section VIII

B

A car has an initial velocity of 25km/h and in 84 seconds it accelerates to 110km/h. How far did it travel while accelerating?

Select one:

a. 757 m

b. 575 m

c. 1575 m

d. 2575 m

C

When like poles of a magnet are placed together, they will:

Select one:

a. Remain stationary

b. Repel each other

c. Generate an electromotive force

d. Be attracted to each other

B

What is a "strength" weld?

Select one:

a. It is a weld which is supposed to add support and strength to pressure vessel components

b. It is a weld done with no defects

c. It is a weld made which is acceptable to the boiler inspector

d. It is a weld which is as strong as the parent metal

D

Immersion boiler tube bundles:

Select one:

a. Have negligible electrical resistance

b. Withstand extremely high temperatures and pressures

c. Can be easily removed from the unit for maintenance purposes

d. Conduct current through the boiler water

C

On a P&ID, the letters "TI" inside a circle, show the location where a ___________ is installed.

Select one:

a. Transmitter

b. Trend-indicator

c. Flow meter

d. Thermometer

D

As compared to Penetrant Testing, Radiographic testing:

Select one:

a. is reliable.

b. requires highly trained operators.

c. can be carried out more quickly.

d. is not as sensitive.

B

A steam boiler is blown off intermittently in order to:

Select one:

a. Locate the steam level

b. Discharge sediment and scale-forming matter from the boiler

c. Lower the dissolved solids concentration in the boiler water

d. Clean the soot and carbon out of the firebox and tubes

B

Boilers are designed with more combustion gas passes:

Select one:

a. To create less thermal stress on the boiler metal

b. So soot falls out in the last pass, leaving the first pass clear

c. To allow more time for heat transfer

d. So boiler tubes do not have to be as long

C

How much heat is in 20 kg of 80% dry steam at 2250 kPa abs?

Select one:

a. 48 573 kJ

b. 55 653 kJ

c. 2781.7 kJ

d. 33,241 kJ

e. 1.1335 MJ

A

A helix strip bimetallic thermometer is wound spirally to:

Select one:

a. Increase the range of temperature it can measure

b. Amplify the motion of the pointer

c. Dampen the motion of the pointer

d. Ease its installation

B

One of the national standards which each jurisdiction in Canada has adopted as part of their applicable Act and/or Regulations is the:

Select one:

a. ASME Codes

b. CSA B51

c. ANSI Codes

d. NFPA Codes

B

In a boiler, all steam generating parts that are exposed to fire or hot gases must be:

Select one:

a. Covered with ceramic tile

b. Fitted with expansion joints

c. Covered by water

d. Made of fire brick

C

Steam traps may also remove _______ from steam lines.

Select one:

a. Air

b. Superheat

c. Chemicals

d. Oil

A

The _____ of a DC machine is built up of laminated steel plates mounted on a shaft. The coils are connected to a commutator mounted on one end of the rotor shaft.

Select one:

a. Stator

b. Yoke

c. Core

d. Armature

D

The purpose of a steam trap is to:

Select one:

a. Remove steam from a steam line without allowing water to pass

b. Remove condensate from steam lines without allowing steam to escape

c. Reduce the steam pressure in a line

d. Collect steam for storage purposes

B

Which one of the following fusion welding is a totally manual process?

Select one:

a. gas tungsten arc

b. gas metal arc

c. oxy-fuel

d. submerged arc

C

What is the power required to apply a 200kN force over a distance of 15m in 15 seconds?

Select one:

a. 3000 W

b. 1500 kW

c. 1000 kW

d. 200 kW

D

What is "ash"?

Select one:

a. It is a component of liquid fuels

b. It is what is left at the bottom of the furnace after combustion

c. It is the organic matter left after complete combustion has occurred

d. It is the part of fuel that can't be burned

D

As part of the water cycle, animals use this process to release water.

Select one:

a. respiration

b. transpiration

c. perspiration

d. transigration

A

As compared to a cooler water sample, warmer water:

Select one:

a. is not considered a major pollutant

b. has a lower vapour pressure

c. cannot hold as much dissolved oxygen

d. is more dense

C

The inclined "U" tube manometer:

Select one:

a. Is more difficult to read than the U-tube manometer

b. Is more accurate than the "U" tube manometer

c. Can only be used with mercury

d. Will measure pressure in MPa

B

One of the typical details shown in the Process Flow Diagram (PFD) includes:

Select one:

a. All valve locations and orientation

b. Main piping and direction of flow

c. Detailed pipe sizes

d. Detailed configuration and exact location of equipment

B

Bottom Blow Off valves:

_______ on Power Boilers, and _________ on heating boilers.

Select one:

a. 1 is required, 1 is required

b. 2 are required, a drain valve only is required

c. 2 are required, 2 are required

d. 2 are required, 1 is required

D

The four basic components of WHMIS are:

Select one:

a. Employee training, Governing legislation, Confidentiality of information, Material Safety Data Sheets

b. Governing legislation, Labelling, Material safety data sheets, Employee training

c. Governing legislation, Hazard identification and product classification, Labelling, Material Safety Data Sheets

d. Employee training, Labelling, Material Safety Data Sheets, Hazard identification and product classification

D

Radiators and convectors should be placed:

Select one:

a. Against inside walls

b. Closed to the boiler

c. In a central location

d. Away from windows

e. Against outside walls

E

Organic matter is deposited in the soil by:

Select one:

a. Wind

b. Water

c. Glaciers

d. Vegetation

e. Gravity

D

The rate of doing work is called _________.

Select one:

a. Power

b. Kinetic energy

c. Potential energy

d. Work

A

Water that is fed into the boiler to replace water that has been converted into steam is called:

Select one:

a. Feedwater

b. Return water

c. Condensate

d. Fresh water

A

The voltage induced in the secondary windings of the transformer, is _____ the turns ratio of the transformer.

Select one:

a. Inversely proportional to

b. Opposed by

c. Reversed to

d. proportional to

D

Permanent magnets are used for:

Select one:

a. Induction motors

b. Series motors

c. Small portable alternators

d. Shunt motors

C

As per ASME section I and section IV, a steam boiler operating at a pressure of ______ or higher is considered a Power Boiler.

Select one:

a. 15 psig / 103.1 kPa

b. 14.7 psig / 100 kPa

c. 14.7 psig / 101.3 kPa

d. 15 psig / 100 kPa

D

It is the employers responsibility to ____________ personal protective equipment .

Select one:

a. Supply, ensure usage, and maintain

b. Only supply

c. Issue, care for, and maintain

d. Supply and ensure usage of

D

Which of these is NOT used for burning coal?

Select one:

a. Chain grate stoker

b. Cross feed stoker

c. Rotary cup stoker

d. Under feed stoker

C

An electrical device that is designed to start and stop current flow is the:

Select one:

a. Power supply

b. Fuse

c. Circuit breaker

d. Switch

D

Much of the world's oxygen is found in:

Select one:

a. the air

b. mineral form

c. the oceans

d. plants

B

A good rule of thumb is to install pipe hangers at ___________ intervals along a pipe.

Select one:

a. 5 m

b. 3 m

c. 1.5 m

d. 1 m

B

Foam fire extinguishers are recommended for use on:

Select one:

a. Class "A" and Class "B" fires

b. Class "A" and Class "C" fires

c. Class "C" and Class "B" fires

d. Class "C" and Class "D" fires

A

When referring to Penetrant Testing, what is meant by the term "dwell time"?

Select one:

a. It is the time allowed for the penetrant to soak into discontinuities in the test piece.

b. it is the time allowed for the developer to pull penetrant from discontinuities.

c. It is the time allowed for the developer to "bleed out".

d. It is the total length of time that the discontinuity remains visible.

A

When a boiler equipped with a combination feedwater control and low water cutoff device shuts down due to a low water condition:

Select one:

a. The condensate pump must be restarted

b. The operator must open the feeder valves to allow water into the boiler

c. It can be restarted by pressing the manual reset

d. The level must be restored to above the cutoff line before the unit can be restarted

D

Which type of heating coil circuiting is designed to produce a high heat capacity with limited water supply?

Select one:

a. Single serpentine

b. Double serpentine

c. Half serpentine

d. Face velocity

e. Steam coil

C

All maintenance on portable fire extinguishers must be:

Select one:

a. Completed on all extinguishers in the plant at the same time

b. Performed at the work site in case they are required for emergency service

c. Contracted out to a certified service company

d. Supervised by a National Fire Protection Association employee

C

Power Engineers document the shift activities each shift in log books, which are________

Select one:

a. Not required, but usually kept anyway.

b. internal documents

c. Legal documents, required by most jurisdictions in Canada

d. Important for maintenance activities

C

This regulation lists the requirements which must be met for anyone wishing to write an applicable jurisdictional examination.

Select one:

a. Pressure Equipment Exemption Order

b. Pressure Equipment Safety Regulation

c. Pressure Welders Regulation

d. Power Engineers Regulation

D

The type of circuit used to store (write) and retrieve (read) information from a computer is known as its:

Select one:

a. RAM

b. ROM

c. Motherboard

d. Bytes

A

Increasing the spring tension in a pressure regulating valve will ___________________.

Select one:

a. Reduce or minimize the cycling or "hunting" of the valve

b. Decrease the regulated pressure downstream of the valve

c. Allow for maintenance to be completed downstream

d. Increase the regulated pressure downstream of the valve

D

One advantage of cast iron boilers is:

Select one:

a. Unlimited operating pressures

b. Resistance to corrosion

c. Reduced vibration due to their heavy foundations

d. Their high factor of brittleness

B

The bypass around a regulating valve should contain a ___________ valve.

Select one:

a. gate

b. needle

c. globe

d. butterfly

C

A proportional controller:

Select one:

a. Allows the process variable to always be maintained at the set-point

b. Provides on-off control

c. Provides a proportional output based on the error between process variable and set-point

d. Is also called a multi-position controller

C

The code that regulates mechanical refrigeration is the:

Select one:

a. CSA B-51

b. CSA B-52

c. ASME Section IV

d. ASME Section I

B

If a substance goes through a process that changes its composition so that it is no longer the same substance, then the substance has undergone a:

Select one:

a. Mechanical change

b. Chemical change

c. Homogeneous change

d. Heterogeneous change

e. Physical change

B

What ASME code contains Recommended Guidelines For The Care of Power Boilers?

Select one:

a. CSA B51.

b. ASME Section VII.

c. ASME Section I.

d. CSA B52.

B