Which tool would be used to field cut aluminum from a roll?
What is utility knife
100
Service temperature of cryogenic insulation systems applied in the field is between
______ F to _______F
What is b. -240 F to -100 F
100
Stretching flexible foam _______.
What is Is to be avoided
100
A chilled water system should be insulated _______.
What is With a vapour barrier
200
What is OD of 6 inch pipe with 1 1/2 insulation
What is 9 1/2
200
What is used to cut cellular glass?
What is hacksaw
200
What is the maximum operating temperature at which most flexible foam insulation may be used?
What is 220 F
200
Air space may be required under insulation on some ducts, tanks, vessels and equipment.
What is To reduce contact of the insulation with the hot surface
200
The section of a boiler where the boiler feed water is preheated is called _______.
What is Economiser
300
A circular tank 38” in diameter, 18’ long is to be insulated with 3” of insulation applied in lags. The lags have an inside lag width of 3 ¾” What is the outside lag size to the nearest 1/32”?
What is 4 11/32
300
What tool might be used to trim calcium silicate / expanded perlite for pipe welds?
What is Chipping hammer
300
Hot water systems operate around ______.
What is 160 – 180 F
300
A weather barrier mastic _______.
What is Should be applied with glass fabric in a total combined thickness of 1/8” when wet
300
Hot water heaters are fuelled by ______.
What is Electricity or gas
400
A rectangular duct is 24” x 12” and is 20’ in length is to be insulated with 1 ½” of insulation board What is the quantity of insulation required? Exclude the ends and give your answer in square feet.
What is 1560
400
When applying insulation using a pin welder, the pin is inserted into the _______
What is Collet
400
The maximum operating temperature for fibreglass blanket is
What is d. 250 F
400
High temp insulating cement _______.
What is Is a mixture of mineral wool or fiber pellets and other inorganic materials
400
A dual duct system is ______.
What is Two parallel ducts, with one carrying heated air and one carrying cooled air
500
A circular duct 26” in diameter, 38’ long is to be insulated with 3 ½” of insulation and canvas. The canvas is 60” wide and 3” is required for all laps. How many square yards of canvas are required?
What is 40
500
When cutting mitres on a fitting saw and an elbow called for 8 mitres, what number would you set the bar at and how many pieces would you need?
What is 8 on the bar and 16 pieces
500
The upper temperature limit of fiber glass board with a facing is _______.
What is c. 450 F
500
Urethane foams best between _______
What is 65 F and 100 F
500
Supply air ducts _______.
What is Carries conditioned air from air supply units to room diffusers