The signal man assisting a crane operator has his arm extended, thumb pointing downwards, flexing fingers in and out. This is the signal to __________.
A
lower the boom and raise the load
B
lower the load and raise the boom
C
raise the boom and lower the load
D
raise the load and lower the boom
E
İlgili Sorular
When taking stars, those bodies to the east and west will __________.The spread of fire is prevented by _____________.With the air supply on, the air pressure in the survival craft will be __________________.In writing up the logbook at the end of your watch, you make an error in writing an entry. What is t...Increasing the area of the anchor flukes will ___________.