Chemco Exit Exam Practice set 3

What is the Reid vapor pressure of flammable liquids of natural gasoline &

Naphtha which has open cup flash point of SO Deg F (26.7 Deg C)?

• More than S.5 but less than 14 psi

• 8.5 psi and below

• 14 psi and above

• More than 24.6 psi

Find the correct statement with respect to special liquids carried in tankers

• Special liquids are divided in to three groups as Animal oils. Vegetable oils

  and Miscellaneous Liquids

• Special liquids are divided in to two groups as Animal oils and

  Miscellaneous Liquids

• Special liquids are divided in to two groups, Animal/Vegetable oils and

  Miscellaneous Liquids

• Special liquids are divided in to three groups as Chemical Liquids,

  Vegetable Oils and Miscellaneous Liquids

Tankers carry palm oil, molasses and tallow as special liquids cargoes in bulk, which are

grouped as

• Animal/Vegetable oils

• Miscellaneous Liquids

• Non-volatile Liquids

• Other chemical Liquids

What type of ships have to carry the SMPEP for NLS manual onboard their ships?

• Ship of 400 GT or more carrying 15 persons or more

• Ships of 150 GT or more carrying oil cargoes

• Ships of 150 Gt or more carrying noxious liquid substances

• Ships of 400 Gt or more carrying noxious liquid substances and also which are oil tankers above 150 Gt

What was the last date by which use of hydrochloroflourocarbons were prohibited?

• 2010

• 2015

• 1st Jan 2020

• 1st July 2023

What is the open cup flash point of the petroleum liquids that are classified as

combustible liquids?

• Above 80 Deg F (26.7 Deg C)

• Above 60 Deg F (15.6 Deg C)

• Below 80 Deg F (26.7 DegC)

• Below 60 Deg F (15.6 Deg C)

What factor mainly affects Vapour cloud dilution rate?

• Quantity of Spill

• Weather conditions

• Thermal inversion

• diameter of the vapour cloud

Which type of anodes must not be fitted in tanks where flammable gases can be

present ?

• Zinc anodes

• Magnesium anodes

• Tin anodes

• Lead anodes

What is meant by "intrinsically safe" ?

• Equipment can be used in hazardous atmosphere

• An electrical circuit is intrinsically safe if any spark produced normally or accidentally is incapable of igniting a gas mixture

• There is no danger if sparks are produced in an unsafe atmosphere

• Equipment can be used in hazardous atmosphere

What is cathodic protection ?

• Cathodes placed on the hull of a ship

• Anodes placed on the hull of a ship

• Protection of the hull of a ship

• The prevention of corrosion by electrochemical techniques