Q.1
Moist climate is the most favourable factor in the site selection far a
Q.2
__________ wire is never used for making the heating element.
Q.3
Basic open hearth furnace (BOF) is not used for producing __________ steel.
Q.4
Which of the following is prone to cup and cone fracture?
Q.5
In the diving apparatus, helium is used along with oxygen, because it is
Q.6
Sudden immersion/dipping of red hot steel bar in water makes it
Q.7
Coating thickness in case of galvanising of steel sheet generally corresponds to the deposition of __________ gms of zinc per m² of steel strip.
Q.8
__________ is used as a material of construction for the blade of power saw.
Q.9
The most important consideration in value engineering is the
Q.10
Refrigerative cooling employed during long distance transportation of food stuffs is normally done by
Q.11
Machine tool bodies are usually made of
Q.12
Increase in the entropy of a system represents the
Q.13
Cupola produces __________ iron.
Q.14
Which of the following performance characteristics of a S.I engine is not affected by the front end volatility of the petrol used?
Q.15
All the atoms of the world comprise of electrons, proton & neutron except that of __________ atom in which neutron is absent.
Q.16
An abrupt and sudden fall in the readinp of barometer is an indication of the
Q.17
The maximum thickness of the metal which can be welded using ultrasonic welding is __________ mm.
Q.18
Stress and strain are related by __________ elastic constants for a linearly elastic, homogeneous & isotropic material.
Q.19
Pick out the wrong statement.
Q.20
The most important consideration in value engineering is the
Q.21
Electrometallurgy is not involved in the extraction of __________ from its ore.
Q.22
Normalising does not __________ of a metal.
Q.23
Which of the following does not come under the category of electrochemical corrosion?
Q.24
Starting friction is low in case of the __________ lubrication.
Q.25
Diffusion co-efficient of a metal in a solid solution depends upon its
Q.26
Which of the following is not an explosive?
Q.27
The reductant used in the extraction of magnesium from calcined dolomite via Pidgeon's process is
Q.28
Induced draft fans provided in large thermal power plant boilers have __________ blades.
Q.29
The temperature at which the magnetic property of iron disappears (i.e., it becomes non-magnetic) and its electrical conductivity & specific heat also changes, is called the 'Curie point', which is __________ °C.
Q.30
The driving force for the sintering of a powder compact is
Q.31
Which of the following alloying elements reduces the formation of iron sulphide in steel?
Q.32
Which of the following mainly decides the current to be employed is arc welding?
Q.33
The delivery pressure of boiler feed water pump compared to the boiler steam pressure is
Q.34
Calorific value of __________ are almost same.
Q.35
Closeness of packing is maximum in case of __________ crystal lattice.
Q.36
High endurance limit of carburised machine parts is because of the fact that carburisation
Q.37
In the formation of cermets, the ratio of ceramic material to metallic material is usually 80:20. Which of the following is a cermet?
Q.38
Thermistors are used in __________ devices.
Q.39
More than 1000 tons refrigeration capacity plants are usually of __________ type.
Q.40
An ingot is hot forged to a 60% reduction in cross-section area. The percentage reduction in the volume for the above process is
Q.41
An "orange peel" effect is observed
Q.42
Pick out the wrong statement.
Q.43
'Sterilised zone' around a hazardous chemical industry is an area with __________ km radius around it, in which the total population/inhabitants should be less than 20000 preferably in the upwind direction.
Q.44
Internal cracks in drawn bars are due to
Q.45
The moment of inertia of a body comes into play in __________ motion.
Q.46
Overheating of satellites during re-entry to earth is controlled by
Q.47
Pick out the wrong statement.
Q.48
The radioactive isotope of hydrogen is
Q.49
In the floatation process, pine oil is used as the
Q.50
Normalising does not __________ of a metal.
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