The shells are secured by means of bea

1、What does the author mean by “most peo

What does the author mean by “most people are literally having a ZZZ” (Lines 2-3, Paragraph 5)?AA They are getting impatient.BB They are noisily dozing off.CC They are feeling humiliated.DD They are busy with word puzzles.

2、The expression STAND-BY ENGINE means:（

The expression STAND-BY ENGINE means:（）.Ato get the engine readyBto respond to the engineCto maneuver the engineDto change the engine

3、Adjust （） by means of lead wire.

Adjust （） by means of lead wire.Athe clearance of the main bearingBthe diameter of main bearingCthe gap of main beatingDthe tolerance of main bearing

4、（） means the person designated by the

（） means the person designated by the Company for ensuring that a ship security assessment is carried out; that a ship security plan is dev...

5、By which of the following means is for

By which of the following means is force efficiently provided to vary the pitch of the blades on a modem controllable pitch propeller?（）AHydraulicBMechanicalCPneumaticDElectrical

6、The main bearing shells are made of st

The main bearing shells are made of steel with a lining of bearing metal which may be white metal, copper-lead or aluminum-tin alloy What is the meaning of “which” in the sentence above?（）Amain bearing shellsBmain bearingCsteelDbearing metal