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USCG Exam Practice · Twin-screw vessel handling

Under 33 CFR §164.35, a vessel fitted with lateral thrust propellers must have which of the following at the centerline conning position, except when operating on the Great Lakes and their connecting and tributary waters?

  1. AAn indicator showing the rate of revolution of each lateral thrust propeller
  2. BAn indicator showing the direction and amount of thrust of each lateral thrust propeller✓ correct
  3. CAn indicator showing the pitch and operational mode of each lateral thrust propeller
  4. DA table of vessel speeds at which each lateral thrust propeller is effective

Why B is correct

33 CFR §164.35(n) requires that vessels fitted with lateral thrust propellers have an indicator readable from the centerline conning position showing the direction and amount of thrust of such propellers, with the Great Lakes exception. Option A describes the propeller revolution indicator required by §164.35(l), option C describes the controllable pitch propeller indicator required by §164.35(m), and option D describes the maneuvering fact sheet data required by §164.35(g)(5).

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Under 33 CFR §164.35, a vessel fitted with lateral thrust propeller… — USCG Exam Practice · CaptainsGround