Book1 chapter 5 Flashcards
Chapter 5 Chapter Review - Basic Fittings for Steam Boilers
The blowdown connection is made to the:
Select one:
A. Highest point of the boiler shell
B. Lowest point of the mud drum
C. Highest point of the mud drum
D. Highest point of the steam drum
E. Lowest point of the steam drum
B. Lowest point of the mud drum
All fitting markings shall be legible and must indicate the following minimum requirements.
1. National Pipe Size
2. Manufacturer’s name or trade mark
3. Vendors Identification
4. Service designation
5. Material designation
- Manufacturer’s name or trade mark
- Service designation
- Material designation
The purpose of the gauge glass or water gauge is to show the _____ in the boiler.
Select one:
A. Color of the water
B. Temperature of the steam
C. Steam level
D. Water level
E. Pressure of the water
D. Water level
A safety valve must be mounted:
1. In the horizontal position
2. To the boiler by a short nipple
3. At the highest practicable part of the boiler
4. With discharge water properly drained
5. With a valve next to the boiler
- To the boiler by a short nipple
- At the highest practicable part of the boiler
- With discharge water properly drained
Boiler fittings must comply with the requirements set out in the:
1. ASME Codes
2. ANSI Codes
3. CSA B51
4. CSA B52
5. The regulations of the authority having jurisdiction
- ASME Codes
- CSA B51
- The regulations of the authority having jurisdiction
The boiler vent valve is used for the purpose of allowing:
Select one:
A. Air to escape while filling
B. Air to escape while draining
C. Steam to enter while draining
D. Steam to escape while filling
E. Water to escape while filling
A. Air to escape while filling
Try cocks are used on boilers to:
Select one:
A. Prove the temperature of the steam
B. Test for steam pressure
C. Check the boiler water level
D. Test the operation of the safety valve
E. Drain water from the water column
C. Check the boiler water level
Gauge glass safety shutoff valves are equipped with a:
Select one:
A. Self closing stem
B. Flapper disc
C. Brass plug
D. Stainless steel ball
E. Floating disc
D. Stainless steel ball
A pressure gauge can most accurately be calibrated by using:
Select one:
A. A test gauge comparator
B. Another pressure gauge
C. A dead weight tester
D. Hydraulic comparator
E. The Inspector’s test gauge
C. A dead weight tester
A hydrostatic test is at a pressure of
Select one:
a. 1.5 times the operating pressure
b. 1.5 times the maximum allowable working pressure
c. 1.5 times the bursting pressure
d. 1.5 times atmospheric
b. 1.1.5 times the maximum allowable working pressure
A heating boiler must have a permanently attached marker indicating:
Select one:
A. The maximum allowable working pressure
B. Highest permissible water level
C. Lowest permissible water level
D. The maximum allowable working temperature
E. Lowest permissible steam level
C. Lowest permissible water level
All fittings not properly or clearly identified:
Select one:
A. Can be used in water applications
B. May be used for low pressure service
C. Can be used for compressed air service
D. Should be rejected
E. Should be kept for emergency use
D. Should be rejected
If the steam passage to the boiler gauge glass becomes obstructed:
Select one:
A. The water level in the glass will fall
B. The water level in the glass will rise
C. There will be no change
D. The steam level in the glass will fall
E. The steam level in the glass will rise
B. The water level in the glass will rise
Boiler gauge glass packing nuts may be tightened:
Select one:
A. Only hand tight
B. At any time
C. Once the pressure has been removed
D. Once the glass has cooled to room temperature
E. With a torque wrench
C. Once the pressure has been removed
A pipe siphon is used on a boiler to:
Select one:
A. Maintain a water seal between the water and the Bourdon tube
B. Remove water from the boiler drum
C. Maintain a water seal between the steam and the Bourdon tube
D. Add water to the Bourdon tube
E. Maintain a steam seal between the steam and the Bourdon tube
C. Maintain a water seal between the steam and the Bourdon tube