COF P-98 Practice Test

Questions and Answers

What type of certificate of fitness must the person supervising the fuel-oil transfer hold?

P-98 Certificate of Fitness

Which factors must be considered in designing the fuel-oil transfer system? (Select all that apply)

Type of oil being transferred

Maximum inlet suction and flow-rate (correct)

Design of oil piping system and discharge pressure (correct)

Proper control strategy (correct)

_______________________ fires are caused by ordinary combustible materials (wood, paper, and cloth).

Class A

Who must hold a P-98 Certificate of Fitness when supervising a stationary fuel-oil storage tank?

P-98 Certificate of Fitness holder Signup and view all the answers

The periodic inspection and testing of such tanks and piping shall be conducted under the _____________ of such P-98 Certificate of Fitness holder.

Personal supervision Signup and view all the answers

How often should fuel-oil storage tanks and piping systems be inspected for leaks?

Weekly Signup and view all the answers

How often should float switches in fuel-oil storage tanks be tested?

Weekly Signup and view all the answers

Which department issues a certificate of compliance for operating oil burning equipment?

NYC Department of Buildings Signup and view all the answers

What codes require the P-98 Certificate of Fitness for transporting fuel from lower levels to upper floors? (Select all that apply)

NYC Fire Code Signup and view all the answers

The oil storage tank provides the supply of oil for combustion in the ____________.

Oil burner Signup and view all the answers

What circulates the oil throughout the oil storage tank system?

Suction pump Signup and view all the answers

Dirt and sediment are present in the fuel-oil coming from the oil storage tank.

True Signup and view all the answers

What removes most contaminants from the oil before it reaches the burner's strainer?

Oil filter Signup and view all the answers

The suction line has to be at least ______ inches from the bottom of the tank for sediments not to be absorbed.

6 Signup and view all the answers

Excessive vacuum readings indicate that there is an obstruction in the suction line.

True Signup and view all the answers

What device is used to measure pressure below atmospheric pressure?

Vacuum gauge Signup and view all the answers

What device is designed to shut down the burner system if there is a failure of ignition or combustion?

Main fuel valve Signup and view all the answers

What is electrically operated and will open or close the line leading to the atomizer for oil burners?

Main fuel valve Signup and view all the answers

Oil circulates through the piping system back to the storage tank through the oil return line.

True Signup and view all the answers

What is provided for safety if the pressure in the oil piping system becomes too great?

Pressure relief valves Signup and view all the answers

____________ is stored by the storage tank. It has an oil level gauge which shows the amount collected.

Leak collector Signup and view all the answers

Combustion is the chemical union of oxygen in the air with which elements? (Select all that apply)

Oil Signup and view all the answers

During the combustion process, what percentage of the carbon content of fuel-oil unites with oxygen to form carbon dioxide and carbon monoxide?

85% Signup and view all the answers

The hydrogen content of the oil (about 14%) unites with the _________ and produces water.

Oxygen Signup and view all the answers

What is primarily a device for processing the liquid fuel for combustion?

Oil burner Signup and view all the answers

What is the air that contacts the oil prior to its leaving the nozzle referred to as?

Primary air Signup and view all the answers

The introduction of air from the blower or fan into the combustion chamber after the oil has left the nozzle is referred to as?

Secondary air Signup and view all the answers

The mixture of oil and air is sprayed in vapor form into a __________ area where combustion takes place.

Firebox Signup and view all the answers

____________ is considered as the end product of incomplete combustion.

Carbon monoxide Signup and view all the answers

What color indicates that a lack of air is present during combustion?

Red smoky flame Signup and view all the answers

A __________ is an indication of a great amount of excess air.

White flame Signup and view all the answers

_____________ operate with an internal combustion engine.

Diesel generators Signup and view all the answers

How often should diesel generators be tested?

Monthly Signup and view all the answers

Ideally, diesel engines should run at least around 60-75% of their maximum rated load and at around _______ of their maximum speed.

75% Signup and view all the answers

What is required in the oil line to separate dirt and sediment? (Select all that apply)

Oil burner Signup and view all the answers

What permits the operator to stop the flow of oil to clean the strainer?

Shut-off valve Signup and view all the answers

An oil burner is activated by which of the following controls?

Primary control Signup and view all the answers

Approval from the NYC Environmental Protection Agency is required before changing any grade of fuel-oil.

True Signup and view all the answers

The mixture of fuel-oil and air is ignited at first by electric ignition.

True Signup and view all the answers

After ignition of the fuel-oil and air, combustion is maintained by retained heat in which component?

Combustion chamber Signup and view all the answers

What is a flame detection control that will shut down an oil burner if a flame is not visible?

Photoelectric cell Signup and view all the answers

An _________ operates the oil burner in the summer for domestic hot water purposes.

Aquastat Signup and view all the answers

What is the automatic electric control that shuts the burner off when the water level is below a safe operating point?

Low water cut-off Signup and view all the answers

What device is used to indicate the water level of a steam boiler?

Steam pressure gauge Signup and view all the answers

What type of control will automatically shut down the boiler when no flame is detected?

Primary relay Signup and view all the answers

What device mounted on the smokestack will shut down an oil burner if there is excessive smoke?

Smoke alarm Signup and view all the answers

The smoke alarm designed to shut down an oil burner is also a required combustion and ____________ control.

Air Pollution Signup and view all the answers

What shows the steam pressure inside the steam boiler?

Steam pressure gauge Signup and view all the answers

Normal steam pressure for low pressure boilers cannot exceed more than ________.

15 psi Signup and view all the answers

What device is used to relieve excessive steam pressure?

Pop-off valve Signup and view all the answers

Glazing occurs because of low combustion temperatures and pressures in the engine cylinder.

True Signup and view all the answers

A defective oil cut-off valve can lead to a condition referred to as ____________.

After-drip Signup and view all the answers

Working clearances between oil-fired appliances and electrical panel boards must comply with the:

NYC Electrical Code Signup and view all the answers

What must all fuel-oil piping and storage tanks be hydrostatically tested for tightness by? (Select all that apply)

The contractor hired by the building owner Signup and view all the answers

During the hydrostatic test, the piping shall be tested at _______ percent of the maximum working pressure.

150% Signup and view all the answers

Appliances must not be converted from the fuel grade specified on the rating plate without which approval?

NYC Department of Buildings Signup and view all the answers

Which Certificate of Fitness holder is authorized to make regular inspections of oil burning equipment while in operation?

P-98 Certificate of Fitness holder Signup and view all the answers

What helps to regulate the temperature in the room for the generator?

Air louvers Signup and view all the answers

What must be provided to stop the flow of oil to any burner?

Remote control Signup and view all the answers

What must all controls designed to stop the flow of oil to the burner during an emergency situation be labeled as?

Remote control for oil burner Signup and view all the answers

How much fuel-oil can be stored inside any building?

100,000 gallons Signup and view all the answers

Fuel-oil above the lowest floor inside a building shall be limited to how many gallons per story?

330 gallons Signup and view all the answers

"Day tanks" must be provided with secondary containment of a capacity at least _________ the capacity of the tank served.

Two times Signup and view all the answers

Equipment whose combustion products have a temperature of 600 degrees Fahrenheit or less under normal conditions is classified as?

Low temperature equipment Signup and view all the answers

Equipment whose combustion products have a temperature between 600 and 1000 degrees Fahrenheit under normal operating conditions is classified as?

Medium temperature equipment Signup and view all the answers

Fuel-oil tanks must be filled by a __________ supplied from a primary storage tank.

Transfer pump Signup and view all the answers

What is required at the base of shafts enclosing the supply and overflow piping?

Drain pipe Signup and view all the answers

What type of portable fire extinguishers are appropriate for use in case of fire with a fuel-oil storage? (Select all that apply)

ABC Multi-purpose Signup and view all the answers

How far away must portable fire extinguishers be located from fuel-oil fired equipment?

30 feet Signup and view all the answers

How often are portable fire extinguishers required to be checked?

Monthly Signup and view all the answers

The use of the word "should" refers to?

Policies, procedures and/or best practices recommended by the FDNY. Signup and view all the answers

The use of the word "shall" refers to?

Requirement of the Fire Code or the FDNY Signup and view all the answers

Study Notes

Fuel-Oil Transfer Supervision

A P-98 Certificate of Fitness is mandatory for supervising fuel-oil transfers within buildings.
The design of the fuel-oil transfer system must consider maximum suction, flow rate, oil piping design, and control strategies.

Fire Classes

Class A fires are caused by ordinary combustibles like wood, paper, and cloth. Water is effective for extinguishing these fires.

Tank Supervision and Inspections

Stationary fuel-oil storage tanks require general supervision by a P-98 Certificate of Fitness holder.
Inspections and testing of tanks and piping must be conducted under the personal supervision of this certificate holder and shall occur weekly.

Compliance and Regulations

Operating oil-burning equipment requires a certificate of compliance from the NYC Department of Buildings.
The P-98 C of F is necessary for buildings transporting fuel from lower to upper floors per NYC Fire Code and Mechanical Code.

Combustion and Fuel System

The oil storage tank supplies oil for combustion in an oil burner, kept inside a dike.
The suction pump circulates oil through the system, while contaminants, including dirt and sediment, are present in fuel-oil.

Maintenance Equipment

An oil filter removes most contaminants before oil reaches the burner's strainer, while the suction line must be at least 6 inches above the tank bottom to avoid sediment.

Safety Devices

Excessive vacuum readings indicate potential obstructions in the suction line.
A vacuum gauge measures pressure below atmospheric levels, while the main fuel valve shuts down the burner in case of ignition failure.

Oil Burner Operations

Oil circulation returns through an oil return line, with pressure relief valves improving safety against excessive pressure.
A leak collector is used to store excess oil and monitor levels.

Combustion Chemistry

Combustion combines oxygen with combustible fuels, primarily consisting of fuel and oil.
Around 85% of carbon from fuel unites with oxygen during combustion, forming carbon dioxide and monoxide.

Air Introduction in Combustion

Primary air contacts oil before it exits the nozzle; secondary air is introduced into the combustion chamber post-nozzle.

Generators and Testing

Diesel generators, using internal combustion engines, require monthly testing by qualified technicians for efficiency.
Proper engine operation requires running at 60-75% of maximum load.

Fuel Management and Storage

Strainers and oil burners are necessary to separate impurities in the oil line.
A shut-off valve allows flow control for maintenance, while appliances must not change specified fuel grades without NY approval.

Boiler Controls

Essential controls include low water cut-off, primary relay for flame detection, and a smoke alarm for emission control.
Steam pressure gauges indicate steam boiler conditions, with a maximum normal pressure not exceeding 15 psi.

Safety Measures

Glazing due to low combustion can cause efficiency issues, while a defective valve can lead to after-drip conditions, posing fire hazards.
Clearances between oil equipment and electrical panels must align with NYC Electrical Code standards.

Testing and Extinguishers

Hydrostatic tests for fuel-oil piping and storage tanks must occur at 150% of maximum pressure.
Fire extinguishers suitable for fuel-oil fires include Class B and ABC multi-purpose types, located within 30 feet of equipment and checked monthly.

Regulatory Language

"Should" represents recommendations, while "shall" indicates strict requirements per the Fire Code or FDNY.

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Description

Test your knowledge with this practice quiz focused on the P-98 Certificate of Fitness for supervising fuel-oil transfers. Learn about the key factors in designing efficient fuel-oil transfer systems and ensure you understand the requirements for certification.