The signal man assisting the crane operator has one hand occupied and one fist in front of his chest with the thumb pointing outward and is tapping his chest with the heel of his fist. This is the signal to __________.
A
extend the boom
B
lower the boom
C
retract the boom
D
hoist the boom
E
İlgili Sorular
A warm air mass is characterized by __________.The time interval between successive wave crests is called __________.When barge headlogs do not meet or are not even with one another, the void or opening between them i...The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). What is the margin on ...On a vessel of 15,000 tons displacement, compute the reduction in metacentric height due to free su...