Quiz on Combustion and Safety Devices

Tanks that are to be installed underground must be protected against corrosion.

• False

• True

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

Oil burner nozzles are rated at 100 psig nozzle pressure.

• False

• True

Improper combustion can lead to ____.

• excessive carbon monoxide production

• smoke condition around furnace

• All of the above.

• wasted fuel oil

Tags

NGSS.MS-PS1-5

The cad cell relay is a safety device that uses which of the following to prove ignition?

• Heat in the combustion chamber.

• Heat in the blast tube.

• Heat in the flue.

• Light in the combustion chamber.

If a technician inspects the interior of a combustion chamber and finds large quantities of unburned oil, he would correctly conclude that the ____.

• primary control unit may be defective

• nozzle may be too small

• stack switch or cad cell may be defective

• both A and C are correct

Tank piping should be inspected regularly for imperfections and leaks.

• True

• False

Tags

NGSS.MS-ESS3-3

When the oil tank is above the oil burner pump, the fuel oil supply system would normally be a ____.

• gravity flow, one-pipe system

• pressurized two-pipe system

• vacuum-assisted system

• manual pump system

In a single-stage fuel oil pump, the oil is fed to the burner by capillary action.

• True

• False

A condensing oil furnace operates at a higher efficiency because part of the heat output is ____.

• latent heat

• sensible heat

• radiant heat

• conductive heat

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-5

Oil tanks should be checked for water at least once a month.

• True

• False

Tags

NGSS.MS-ESS3-3