Pick out the correct statement ?
Pick out the wrong statement ?
Pick out the wrong statement ?
Pick out the wrong statement?
Pick out the wrong statement ?
Steel produced from phosphatic iron is __________ in nature?
Though tin occurs lower than iron in the electrochemical series, yet it is coated on steel for corrosion protection, because of its__________?
Parallel straight line pattern of temperature distribution for both hot and cold fluids is observed in case of heat exchanger of the type__________?
Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m2 .k), when the insulation thickness is __________ mm?
Out of the following substances, one ton of __________ will store the maximum heat for a rise of 30°C in temperature ?
On decreasing the grain size of a polycrystalline material, the property most likely to deteriorate is__________?
‘Dikes’ are low height walls made around the storage vessels meant for storing hazardous & inflammable material (e.g., petroleum products). Volume of dikes is equal to (where, V = volume of the storage vessel) ?
Ammonia gas can be dried by__________?
The minimum temperature to which the water can be cooled in a cooling tower is the __________ temperature of air?
If the head is doubled in & centrifugal pump, the power required will increase in the ratio of__________?
Brazing filler metal used for joining steel plates__________?
The activity of pure hydrogen gas at 1000°C and 5 atm pressure__________?
Melting point & boiling points of liquid oxygen are respectively – 218.8°C & – 183°C, while the same for liquid nitrogen is – 210°C & – 195.8°C respectively. The difference in melting points of liquid oxygen & liquid nitrogen is not equal to 8.8 ?
__________ metal is used as a bearing liner material?
Regeneration of molecular sieve requires it to be heated to a temperature of about __________ °C?
The ‘laughing gas’ is__________?
Heat transfer by __________ is almost absent in case of fluidised bed drying operation?
What is the range of tempering temperature (°C) for most of the materials ?
Boiler draught of 10 mm water column is equivalent to__________?
Surface tension of a liquid__________?
Gas turbine normally employs a constant __________ cycle?
Depreciation of machines fails under the indirect expenses head. As per income tax regulations, it is calculated by the __________ method?
An example of unsteady non uniform flow is the flow of liquid under pressure through a__________?
A material subjected __________ must have high resilience?
A steam pipe is intended to be insulated with two layers of insulating materials of different thermal conductivities. For minimum heat transfer to take place__________?
Lead is added to 60:40 brass primarily to improve__________?
Glass reacts with__________?
Out of the following, maximum temperature drop for a given heat flow & for the same thickness will be in the case of__________?
Which one can be directly solidified from gaseous state without entering into liquid state ?
Cold heading or upsetting is categorised as the __________ process ?
The fugacity of liquid water at 298 K is approximately 3171 Pa. Considering the ideal heat of vaporisation as 43723 J/gm.mole, its fugacity at 300 K would be__________?
The most abundant metal present in the earth’s crust is__________?
A material being tested for endurance strength is subjected to the __________ load ?
Notched bar test is used for testing the __________ of a material?
The unit of gc is __________?
One of the methods of purification of leach liquor is ion exchange, which involves__________?
Thermal equivalent of electrical power in practical calculation is __________ kcal/kWh ?
Silicon percentage in acid resistant cast iron is about __________?
The atmospheric temperature during melting of ice/snow (in the atmosphere)__________?
__________ is not a case hardening process ?
Calorific value of __________ are almost same?
Identify the correct statement with reference to the extractive metallurgy of aluminium ?
The main charge in blast furnace is usually__________?
Speed of a submarine in deep sea & that of an aeroplane is measured by a/an__________?
Maximum change in the hardness of martensite occurs in the carbon content range of __________ percent in steel?
In a drilling process, the metal is removed by both shearing & extrusion. General purpose drills are made of__________?

Pick out the wrong statement?

A. Processing of thermosetting plastics is ideally done by injection moulding
B. Processing of thermoplastics is ideally done by compression moulding
C. Mass production of seamless pipes are done by electrical resistance welding (ERW)
D. Stretch forming is a process of cold drawing

Correct Answer: Mass production of seamless pipes are done by electrical resistance welding (ERW) ✔

Last Updated: February 13, 2019