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Meaning of block instrument | Babel Free

Noun CEFR B2

Definitions

An instrument installed in a cabinet, used in block signalling installations.

UK

Examples

“The line is signalled with upper quadrant semaphores and Sykes lock and block three-wire two-position block instruments. [...] The Inspecting Officer concludes that both signalmen must share responsibility for the accident by the irregular release of the block instrument, but remarks that the two-position Sykes instruments, although ample for maintaining safety under normal working, do not show clearly the state of the block section ahead.”

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
See all B2 English words →

See also

Block Island Block Island Sound block length block letter block level element block macromolecule

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