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Worksheets2018 Mechanical Chapter 10
Total questions: 25
Worksheet time: 25mins
Name
Class
Date
1.
The provisions of IMC Chapter 10 do not apply to which of the following types of appliances or equip.?
a)
boilers
b)
water heaters
c)
medical gas containers
d)
pressure vessels
e)
1001.1, Exception 3
2.
An unfired pressure vessel in a Group B occupancy is not regulated by Chapter 10, if it operates at a max. pressure of _ psi and has a max. volume of _ cubic feet.
a)
350, 10
b)
250, 10
c)
350, 5
d)
250, 5
e)
1001.1, Exception 4
3.
Chapter 10 of the IMC does not apply to any boiler or pressure vessel subject to _ by Federal or State inspectors.
a)
approval
b)
review
c)
inspection
d)
certification
e)
1001.1, Exception 7
4.
All water heaters shall be capable of being removed without _.
a)
use of special tools
b)
removing permanent construction
c)
removing doors
d)
special knowledge or effort
e)
1002.1
5.
Water heaters shall be sized to prevent the space-heating load from reducing the required _.
a)
potable water heating capacity
b)
potable water flow rate
c)
water temperature
d)
water pressure
e)
1002.2.1
6.
A temperature-actuated mixing valve shall be provided where a potable water-heating and space-heating system requires water for space heating at a temperature higher than _ ºF.
a)
140
b)
160
c)
180
d)
200
e)
1002.2.2
7.
Boiler operating instructions of a permanent type shall be _.
a)
kept on file by the fire department
b)
provided to the mechanical inspector
c)
kept on file in the boiler room
d)
attached to the boiler
e)
1004.2
8.
Clear.s shall be maintained around boilers so as to permit inspection, servicing, repair, replacement and _.
a)
removal
b)
cleaning
c)
visibility of gauges
d)
protection of combustible construction
e)
1004.3
9.
All boiler passageways shall have a minimum unobstructed width of _ “ unless approved.
a)
16
b)
18
c)
24
d)
30
e)
1004.3
10.
In the INSTLN of a boiler, valves shall be located on _ of a safety or relief valve connection.
a)
both sides
b)
neither side
c)
only the supply side
d)
only the discharge side
e)
1006.5
11.
Safety and relief valve discharge pipes for boilers shall be of _ pipe that is approved for the temperature of the system.
a)
flexible
b)
rigid
c)
nonmetallic
d)
steel
e)
1006.6
12.
High-pressure-steam safety valves for boilers shall be vented to _.
a)
the outside structure
b)
the sanitary sewer
c)
an approved collection system
d)
a secondary containment device
e)
1006.6
13.
In the electrical control system for a boiler, control and limit devices shall interrupt the_ side of the circuit.
a)
ungrounded
b)
grounded
c)
load
d)
service
e)
1006.8
14.
The required manual disconnecting means for a boiler control circuit must be lockable in the off position.
a)
access
b)
ready access
c)
an accessible panel cover
d)
a lockable panel cover
e)
1006.8
15.
Steam boilers shall be equipped with _ blowoff valves.
a)
slow-opening
b)
quick-opening
c)
top
d)
bottom
e)
1008.1
16.
In sizing a closed-type expansion tank, which of the following criteria is not required?
a)
average operating temperature
b)
fill pressure
c)
atmospheric pressure
d)
minimum operating pressure
e)
1009.2
17.
An overflow with a min. diameter of _ " shall be installed at the top of the tank.
a)
1
b)
1-1/2*
c)
2
d)
3
e)
1009.3
18.
Open-type hot water boiler expansion tanks must be at least _ ‘above the highest heating element.
a)
2
b)
3
c)
4
d)
5
e)
1009.3
19.
Every steam boiler shall have a _ and a _.
a)
pressure gauge, temperature gauge
b)
water-gauge glass, pressure gauge
c)
water-gauge glass, temperature gauge
d)
combination pressure/temperature gauge, capacity gauge
e)
1010.2
20.
A steam boiler water gauge shall be installed so that the _ is at the normal boiler water level.
a)
third-point
b)
high point
c)
midpoint
d)
low point
e)
1010.2.1
21.
Boiler testing: The test gauge shall have the pressure gauge scale graduated over a range of 1.5 to _ times the max. test pressure.
a)
2
b)
3
c)
4
d)
5
e)
1011.2
22.
Boilers shall have all controls set, adjusted and tested by _.
a)
the mechanical contractor
b)
an approved testing agency
c)
the boiler installer
d)
the mechanical inspector
e)
1004.2 and 1004.7
23.
High-pressure steam boilers with an input of 5,000,000 Btu/h or more shall have a min. clear. of _’between the top of the boiler and the ceiling.
a)
2
b)
3
c)
5
d)
7
e)
1004.3.1 Table
24.
All boilers with manholes on top of the boiler shall have a min. clear. between the top of the boiler and the ceiling of _ feet.
a)
2
b)
3
c)
5
d)
7
e)
1004.3.1 Table
25.
All boilers without manholes on top must have a min. clear. of _ ‘from the ceiling. (Exclude high-pressure steam boilers and those that require a greater clear. by the code.)
a)
2
b)
3
c)
5
d)
7
e)
1004.3.1 Table
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