Wrought iron has an inherent resistance to corrosion but is not to be had freely , its place has been taken by the cuprous alloysAccording to the above sentence , which of the following statements is true?

During the deck repair, ____ should be measured firstly before tail shaft is drawn out.

Since heat will not flow freely from a body at a _____ temperature to another at a _____ temperature, it is necessary to expend mechanical work, heat, or electrical energy from an external source to achieve refrigeration.

The crankshafts on the large modern 2-stroke crosshead engines are ______ big ______ makes as a single unit and so are constructed by joining together individual forgings.

The time of discharging oil is short, but oily water separator discharges oil frequentlyThe possible reason is ____.

To prevent the build up of high stresses engine must not be run continuously _____.

Dirty oil must be _____ before being used again.

Which of the following statements is true concerning the overall efficiency of air compressors?

Which of the following items don’t belong to dock repair works?

The lubrication to the cylinders affected by the fire must be ______ to prevent seizure and all scavenge drains must be ______ to prevent the discharge of sparks and burning oil from the drains into the engine room.

Before the oily water is installed on board ships, it must have ____.