A tackle by which the outer end of a b

1、A band or collar on the top end of a b

A band or collar on the top end of a boom to which the topping lift，midships guy，and outboard guys are secured，is called the（）.Acollar bandBguy bandCpad eye collarDspider band

2、The force exerted by a propeller which

The force exerted by a propeller which tends to throw the stern right or left is called（）.AslipBsidewise forceCrotational forceDthrust

3、When securing a hook to the end of a w

When securing a hook to the end of a wire rope you should use（）.AA bowline knotBA long spliceCAn overhand knot with a wire rope clipDWire rope clips with a thimble eye

4、A tackle by which the outer end of a b

A tackle by which the outer end of a boom is raised and lowered is the topping（）.AboomBliftCraiseDtackle

5、The principle of separation by which a

The principle of separation by which all commercially available oily water separators function is （） differential between oil and water.Athe temperatureBthe viscosityCthe gravityDthe size

6、Can you surprised by the ending of the

Can you surprised by the ending of the film?--------NO,I____the book, so I already knew the storyA was readingB had readC am readingD have read