Boiler Exam 1c Minnesota: Quiz!

Get the necessary training to operate a boiler, as the Boiler Exam 1C from Minnesota assesses your qualifications. Test your knowledge and keep studying for the exam

Edited by Me.bot Editorial Team Questions: 50 September 17, 2024

Character Test

1. Which formula is used to determine the efficiency of the boiler based on heat absorption?

Output divided by the input

Input divided by output

E=mc squared

Swp = ts xt x eff

2. How many ways can heat be transferred?

3. How many types of heat transfer are there?

4. How many different types of drafts can there be?

5. How many types of boilers are there?

6. How many different types of low water fuel cutoffs are in general use?

7. How many different types of air are used in boilers?

8. A reduced pressure zone (RPZ) or backflow preventer prevents contaminated water from entering the domestic water supply.

True

False

9. Boilers and boiler fittings used in the state of Minnesota must be constructed to what code?

A.S.M.E.

N.E.C.

City code

N.F.P.A.

10. What is the unit called that controls the starting and stopping of the burner by sensing the temperature of the water in a hot water boiler?

Aqua stat

Pressure troll

Vapor stat

Flow control valve

11. Heat can be transferred in three ways and they are:

Conduction, radiation, convection

Latent heat, specific heat, sensible heat

Evaporation, conduction, radiation

12. The first sequence in the series of automatic burner controls is:

Ignition

Purging

Startup on low fire

To make up the gas switch

13. Air that is mixed with the fuel at or in the burner is called:

Primary air

Secondary air

Excess air

Mixable air

14. Can a low water condition occur in a hot water heating type boiler?

Yes, for numerous reasons

No, because the boiler is completely filled with water.

No, because there is water in the expansion tank

15. Other than a safety relief valve, what other safety device should be installed on a hot water heating boiler?

Low water fuel cut off

City water fill valve

A feed water regulator

16. What is the internal resistance to the flow of fuel oil?

Viscosity

Flash point

Fire point

Pour point

17. Each boiler in a battery (piped together sharing the same common header) must have:

A main steam stop

Two or more safety valves on each boiler

A chimney and breeching to each boiler

Two or more types of fuel

18. What removes air from a hot water boiler system?

Air control

A siphon device

Flow control

Relief valve

19. When a hydrostatic test of a boiler exceeds the maximum allowable working pressure, each safety valve, if left attached to the boiler, should:

Be held to its seat by screwing down the compression spring

Have its valve disc held to its seat by means of testing clamp or 'gag'

Be set above the maximum allowable working pressure

20. Why is a safety valve sealed?

To prevent tampering with pressure and capacity

To prevent damage to the safety valve

To allow for blow back

To protect the spring

21. Oxygen in boiler water can cause:

Corrosion

Scale

Carry over

Priming

22. In a steam boiler system, the unit that turns the burner on and off based on steam pressure is the:

Pressure control

Aqustat

Potentiometer

Modulator control

23. If water in the gauge glass is not visible because of failure of the feed water supply, what should be done?

Shut off the fuel to the burner and secure the boiler

Add water immediately through the manual fill line

Notify the boiler inspector but continue to run the boiler

24. What two scales does a pressure control have?

Cut in pressure and differential pressure

0 to 20 psi and 0 to 15 psi

0 to 10 psi and 0 to 20 psi

None of these

25. What is the minimum size bottom blowdown line used on a mini or miniature boiler?

¾ inch

¼ inch

½ inch

1 inch

26. What is the minimum size drain required on a water column?

½ inch

1 inch

¾ inch

¼ inch

27. What conditions are necessary to cause a furnace explosion?

Accumulation of unburned fuel, oxygen and an ignition source

Too much air

Not enough air

Too much fuel

28. The low water cut out should be tested:

Daily

Weekly

Monthly

Once a year

29. Can high pressure safety valves be used on the same boiler for low pressure?

No, they cannot be used.

Yes, by changing the spring pressure

Only by tightening the spring pressure

30. Gauge pressure plus 14.7 psi is called what?

Absolute pressure

Atmospheric pressure

Positive pressure

Operating pressure

31. The unit that shuts off the burner in the event of low water is:

Low water fuel cut out

Feed water pump

Safety valve

Operating control

32. The evaporation of 34.5 pounds of water per hour from and at a temperature of 212°F is defined as:

One boiler horsepower

The latent heat of evaporation

An evaporation

33. When a safety valve opens and closes rapidly it is referred to as:

Chattering

Popping

Blow back

Pressuring

34. Furnace explosions are caused by a build up of combustible gases or vapors in the combustion chamber. What is the term used to remedy this condition?

Purging

Clearing

Modulating

Huddling

35. In order for a fuel to burn it must be heated to:

Its ignition temperature

212°F

At least 1000°F

36. Why is a pigtail or siphon required in steam pressure gauge lines?

To protect the gauge from high temperature

To prevent water hammer

To reduce the pressure

37. In a steam boiler system, what is the term used for replacing the water that has been lost by blowing down the boiler or through leaks in the system?

Make up water

Condensate

Feed replacement

38. On a steam boiler system, why are bottom blow down valves installed at the lowest point of the waterside of boilers?

To remove sludge and sediment

To remove makeup water

To prevent corrosion

39. Heating surface is defined as:

Water on one side, hot gas on the other side.

A hot surface

The surface used for heating

40. If a steam trap on a radiator of a steam heating system becomes water logged, what will happen?

The radiator will not heat the room properly

The radiator will overheat

The steam trap will leak

41. In a fire tube boiler, the water:

Surrounds the tubes

Is inside the tubes

Both inside and outside of the tubes

42. What chemical is used as an oxygen scavenger?

Sodium sulfite

Sodium hydroxide

Sodium nitrite

43. What is the primary purpose of boiler blowdown in steam boilers?

To avoid concentration of impurities during the evaporation of steam

To increase the steam pressure within the boiler

To adjust the water level in the boiler

To cool down the boiler

44. Purpose of a safety valve on a steam boiler is to:

Prevent the pressure in a steam boiler from exceeding its maximum allowable working pressure.

Regulate or control an even amount of steam pressure

Regulate the blow back

45. The control designed as a safety backup should the pressure control fail is:

A high limit control

A modulating control

An end switch

A sail switch

46. The capacity of a safety valve used on a steam boiler is measured in:

Pounds of steam that can be discharged in one hour

Pounds of steam shown on the steam gauge

Pound of steam increased per min

47. How does a pressure control attached to the steam space of a boiler control the burner operation?

Burner starts on pressure decrease, stop on pressure increase

Burner starts on pressure increase stop on pressure decrease

Starts burner on pressure increase

Stops burner on pressure

48. When could stop valves be eliminated for a single hot water heating boiler?

When the pressure is less than 30 psi

When the boiler is located above the system

When the pressure is less than 15 psi

49. In some heating systems the circulation pump is controlled by the:

Thermostat

Water pressure

Water head pressure

50. What action should an operating engineer take if a defect is discovered in a boiler requiring repairs not of a routine nature?

Notify the boiler inspector

Notify the sheriff

Notify another engineer in the plant

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Frequently Asked Questions

What is the Boiler Exam 1C Minnesota: Quiz!?

The Boiler Exam 1C Minnesota: Quiz! is designed to evaluate your ability to operate a boiler effectively and ensure you meet Minnesota state regulations. It's an essential step for anyone looking to qualify in boiler operation.

Why is training important before taking the Boiler Exam 1C Minnesota: Quiz!?

Proper training is crucial as it prepares you for the rigorous questions and operational scenarios you might face in the Boiler Exam 1C Minnesota: Quiz!. It ensures you have the knowledge and skills to operate a boiler safely and effectively.

How can I prepare for the Boiler Exam 1C Minnesota: Quiz!?

To prepare for the Boiler Exam 1C Minnesota: Quiz!, you should thoroughly read up on boiler operation, safety protocols, and state regulations. Practical training sessions and reviewing past exam questions can also be incredibly beneficial.

What are the topics covered in the Boiler Exam 1C Minnesota: Quiz!?

The Boiler Exam 1C Minnesota: Quiz! covers a range of topics including boiler operation, safety procedures, maintenance, troubleshooting, and state-specific regulations. It ensures that you are comprehensively tested on all critical aspects of boiler management.

Can I retake the Boiler Exam 1C Minnesota: Quiz! if I don't pass?

Yes, if you do not pass the Boiler Exam 1C Minnesota: Quiz! on your first attempt, you can usually retake it. However, it is advisable to review your weaknesses and prepare thoroughly before reattempting the quiz.

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