The pressure of the hose is too

The pressure of too much homework has led to an evident _______ among the students.

A. shortage

B. minimum

C. refusal

D. decline

Which action is routinely performed at the annual servicing and inspection of a dry-chemical cartridge-operated portable fire extinguisher?

A.Test the pressure gauge for correct reading

B.Weigh the cartridge

C.Replace the dry chemical

D.Pressure test the discharge hose

(A) intensify

(B) intense

(C) integral

(D) internal

Each hose used for transferring vapors must ______．

A.have a design burst pressure of at least 25 psig

B.be capable of withstanding at least 2.0 psi vacuum without collapsing or constricting

C.be electrically continuous with a maximum resistance of ten thousand ohms

D.All of the above

Sweating of the refrigeration system compressor crankcase is caused by_______ .

A.too much superheat

B.insufficient superheat

C.suction pressure too low

D.excessive refrigerant returning to the compressor

Which statement about stowing spare hose is TRUE ________．

A.Fold the hose so that the male coupling is about 4 feet from the female coupling，then roll it up

B.Roll the hose starting at the female end

C.Roll the hose starting at the male end

D.Fold the hose into lengths about 6 feet long and then lash the folds together

A.is

B.are

C.be

Reid vapor pressure is ______．

A.exerted by liquid cargo on the sides of a tank

B.exerted by liquid cargo on a cargo hose body

C.the lowest temperature and pressure that will cause a flammable liquid to give off vapors

D.a measurement of the amount of flammable vapors given off by a liquid at a certain temperature