A. Spraying water
B. Blanketting the area with nitrogen atmosphere
C. Fire fighting foam
D. None of these
Correct Answer: Blanketting the area with nitrogen atmosphere ✔
Last Updated: February 08, 2019
Related MCQs
- Pick out the wrong statement ?
- Fibrous fracture is normally encountered in the __________ materials?
- A steam carrying pipeline is insulated with two layers of insulating materials with the inferior insulation material forming the inner part. If the two insulating layers are interchanged, the heat conducted will__________?
- The materials which fracture even at small strains are termed as brittle, while those materials which exhibit an appreciable deformation before failure are termed as__________?
- The elastic strain energy of a unit length of an edge dislocation as compared to that of a screw dislocation is__________?
- The dew point temperature lines on psychrometric charts are straight inclined sloping downwards to the right. When relative humidity of moist air is 100%, then__________?
- Addition of silicon to cast iron __________?
- __________ is used as a material of construction for the blade of power saw ?
- The capacity of a spring to store energy is called the spring form co-efficient. Stiffness of a spring is measured by the__________?
- Which of the following is not the function of a volute casing provided in a centrifugal pump ?
- Fatigue limit improvement by over stressing the metal by successively increasing the load is called coaxing. In fatigue failure, the material fails ?
- Out of the following, the best material capable of withstanding shock & vibration without the danger of cracking is __________?
- The most serious manufacturing defect from fracture toughness point of view is__________?
- __________ has the highest melting point out of the following ?
- In an amorphous material, atoms defy any definite atomic structure and exist in random pattern just like in liquid. Which of the following is an amorphous material ?
- Air-petrol ratio for maximum power generation in spark ignition engine is about__________?
- Ceramic compounds as compared to metallic compounds __________ ?
- Galvanic corrosion cannot be prevented by__________?
- Silicon percentage in silicon steel used for electrical equipments is about__________?
- Babbitt lining is used on brass/bronze bearings to increase the__________?
- Window panes of aeroplanes are normally made of__________?
- Fibre reinforced plastic (FRP) are__________?
- Which of the following hardness tests does not measure the indentation hardness of metals and alloys ?
- Which of the following approaches the ideal gas behavior most closely ?
- Normalising does not __________ of a metal?
- Gratings is associated with the measurement of__________?
- Lap joints are preferred over butt joints in soldering/brazing, because these joints are __________?
- Water flow in the river during flood can be categorized as the __________ flow ?
- Which of the following test is used for distinguishing among dry oils, semi-drying oils and non drying oils ?
- Laser welding is widely employed in the __________ industries ?
- Joining of thin foils is preferred to be done by __________?
- About __________ ton of coke is required in a cupola to produce one ton of casting ?
- Satellites burn off during re-entry to earth’s atmosphere, because of the __________?
- Filler material used in welding should have __________ as compared to the parent metal to be welded ?
- The only suitable method for hardening the low carbon steel is case hardening. Which of the following is a case hardening process ?
- With increase in temperature, the electrical conductivity of semiconductors__________?
- Referring to the periodic table of elements, it is found that with increasing atomic number. The atomic size in the same__________?
- The temperature at which the magnetic property of iron disappears (i.e., it becomes nonmagnetic) and its electrical conductivity & specific heat also changes, is called the ‘Curie point’, which is __________ °C ?