All newly installed air-setting, hydraulic, and chemically bonded linings should be allowed to cure at the proper temperature before initial heating for a minimum of:
A. 12 hours
B. 24 hours
C. 18 hours
D. 48 hours
正解:B
解説: (Pass4Test メンバーにのみ表示されます)
質問 2:
The mock-up for vibration cast installations demonstrates the adequacy of the: (This may have more than one correct answer; please select all that apply.)
A. equipment.
B. means of vibrator attachment.
C. craftsman's ability to construct the forms.
D. vibration method.
正解:A,B,D
解説: (Pass4Test メンバーにのみ表示されます)
質問 3:
A layer coat of refractory lining that is applied to an existing lining in an attempt to extend the lining's life is known as:
A. overlay
B. paint
C. overspray
D. buttercoat
正解:A
解説: (Pass4Test メンバーにのみ表示されます)
質問 4:
The quantity of manufactured refractory that has the same formulation as that prepared in an uninterrupted manufacturing operation is called a:
A. test sample
B. bag
C. pallet
D. production run
正解:D
解説: (Pass4Test メンバーにのみ表示されます)
質問 5:
An alternative to wire mesh baskets is a panel with enclosed sides when the:
A. dimensions are less than 18 in. (450 mm) * 18 in. (450 mm) * 4 in. (100 mm)
B. dimensions are greater than 18 in. (450 mm) * 18 in. (450 mm) * 4 in. (100 mm)
C. samples are cut from the edge of the panels
D. samples are cut with an abrasive medium
正解:B
解説: (Pass4Test メンバーにのみ表示されます)
質問 6:
A pigment shall be used in the curing compound in order to:
A. indicate full coverage.
B. help the lining retain moisture.
C. help the lining retain heat.
D. prevent ultraviolet light damage.
正解:A
解説: (Pass4Test メンバーにのみ表示されます)
質問 7:
For erosion service, density results are determined from which of the following specimens?
A. Crushing cubes only
B. Abrasion plates and linear change bars
C. Crushing cubes and linear change bars
D. Abrasion plates only
正解:B
解説: (Pass4Test メンバーにのみ表示されます)
Fukaumi -
実力をチェックできますから超安心で受験して受かるという最小限の対策で合格をめざす参考書だと思う。