Question 47, multiple-choice question on boiler foundations on September 30: (A certain score will be given to the top 40 participants)
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LS boiler refers to a vertical double-drum boiler (). Answer: Wrong. Thank you for your support; correct answers earn +6 points, while incorrect answers result in a loss of 45 points plus +3 points.
LS boiler type: Vertical double-drum boiler (X)
The LS boiler is a vertical double-drum boiler (X)
The LS boiler is a vertical double-drum boiler (incorrect)
The LS boiler is a vertical double-drum boiler (X)
LS boiler refers to a vertical double-drum boiler (incorrect)
LS boiler refers to a vertical double-drum boiler () – this is incorrect. The reasons are as follows: Shell boilers: (1) Vertical water-tube boilers LS (vertical water); (2) Vertical fire-tube boilers LH (vertical fire); (3) Vertical heat-tube boilers LR (vertical heat); (4) Horizontal internal-combustion boilers WN (horizontal internal); (5) Horizontal external-combustion boilers WW (horizontal external); (6) Horizontal heat-tube boilers WR (horizontal heat). Water-tube boilers: Single-drum vertical boilers – DL (single vertical); Single-drum vertical-mounted boilers – DZ (single vertical-mounted); Single-drum horizontal-mounted boilers – DH (single horizontal); Double-drum vertical-mounted boilers – SZ (double vertical-mounted); Double-drum horizontal-mounted boilers – SH (double horizontal). Fixed-grate boilers – G (fixed); Adjustable manual-grate boilers – H (adjustable); Chain-grate boilers – L (chain); Reciprocating-grate boilers – W (reciprocating); Bottom-fed grate boilers – A (bottom); Plate-lifting boilers – C (lifting). Room-type boilers – S (room); Semi-gas boilers – B (semi); Boiling boilers – F (boiling)
The LS boiler is a vertical double-drum boiler (X)
LS boilers are vertical double-drum boilers. Error