4-18. On trusses, what term indicates the horizontal distance between the peak and the heel? 1. Gusset 2. Slope distance 3. Rise 4. Half span 4-19. How should you show a spot weld on a weld symbol? 1. Place a square above the base 2. Place a small circle on the base 3. Place a small circle above the reference line 4. Place a square under the reference line 4-20. You should indicate temporary supports for complicated structures on what type of drawings? 1.    Erection drawings 2. Fabrication drawings 3. Layout drawings 4. Falsework drawings 4-21. To find the length, thickness, and character of building walls, you should look at what type of drawing? 1.    Elevation  plan 2l Framing plan 3. Floor plan 4. Plan view 4-22. A list of written specifications and definition of terms are part of what drawing? 1. Specification drawings 2.    Detail drawings 3.    Fabrication  drawings 4.    Falsework  drawings 4-23. 4-24. 4-25. 4-26. 4-27. Shipboard isometric wiring diagrams found in DC Central provide what type of information to the repair and fire parties during drills and emergencies? 1. Circuit functions 2. Equipment  component  connections 3. Equipment, panels, connection boxes, and cable run locations 4. Signal or current flow between major equipment  components What designation refers to a shipboard main electrical switchboard or switch gear group location? 1. 1SF 2. 2S 3. 2E 4. 2SF A cable tag marked (4-168-1)-4P-A(1) indicates that the cable serves to power what function? Propulsion power Ship's service power Ship's service lighting 1. 2. 3. 4. In a shipboard isometric wiring diagram, Control power what is the degree of angularity for drawing athwartship lines? 1. 30 2. 45 3. 60 4. 90 You should draw interdeck cabling at what angle to the centerline of the ship? 1. 30 2. 45 3. 60 4. 90 23