Use of economiser in a boiler plant reduces the fuel consumption for steam generation by about __________ percent.
Cast iron contains __________ percent carbon.
On being hit with a hammer, __________ will readily fracture.
In case of simple harmonic motion, displacement is proportional to the
The starting of a car takes time in winter, because the
A good abrasive
Minimum temperature upto which water can be theoretically cooled down in the cooling tower by evaporative cooling is equal to the __________ temperature of air.
Heat treatment of steel is done to mainly change its __________ properties.
Scaling occurs in boiler tubes due to the fact that, the solubility of Ca(OH)2 __________ with increasing temperature.
Use of flux during soldering is done to
Which of the following is an inedible oil ?
Light year is the unit of
A boy weighing 110lb climbs up aft high vertical destination inseconds. Horse power of the boy is __________ hp.
According to thermodynamic Farenhite scale, the fundamental interval between ice point to steam point is
Springs are not made of
The maximum thickness of the metal which can be welded using ultrasonic welding is __________ mm.
Compression ratio of an I.C. engine is the ratio of the
Number of electrons in the outermost shell of a semi-conductor material is
Alloys having more thancopper are generally more
Which of the following does not discharge the dust collected as a dry solid ?
The elastic strain in copper is due to the
Out of the following, __________ pipe is the least corrosion resistant.
The best criterion for analysing an economic investment is the
Heat transfer to the water wall in a high pressure water wall type boiler furnace is mainly by
Normal dosage of chlorine in public water supply scheme ranges from __________ ppm.
While the recrystallisation temperature for pure metals is 0.3 Tm, the same for alloys is equal to __________ x Tm (where, Tm Melting temperature).
Addition of beryllium to copper is done mainly to produce a/an __________ alloy.
The most important consideration in value engineering is the
Ingrannular corrosion occurs __________ stainless steel.
Endurance is a measure of fatigue limit of a metal. Fatigue crack in nitrided machine parts originates
Silicon percentage in the silicon steel used for electrical appliances/equipments is
Maximum consumption of limestone is in the __________ industry.
A dummy activity is used in PERT network to describe the
Pick out the wrong statement.
High speed steel tools retain their hardness upto a temperature of __________ °C.
Two stroke engine compared to a four stroke engine has
The velocity at which individual particles from a fluidised bed are carried away by the fluid passing through it, is defined as the
In order to protect the aquatic creatures, the dissolved oxygen content in fresh water stream should never be less than __________ PPm.
Deformation band is absent in materials having __________ lattice crystal structure.
Factor of safety is the ratio of the __________ stress to the working stress.
Cast iron has the unique property of high
Boiling point of water gets lowered at high altitudes (e.g., hills), because
Boiler tube size is specified by its thickness and __________ diameter.
Fibrous fracture is normally encountered in the __________ materials.
The factor of safety for brittle materials (having elongation < 5%) is based on the __________ stress.
The product out from a cupola is called
Resilience of a bolt can be increased by increasing its
In case of fluid moving machineries, the relationship between saturation temperature and pressure decides the process of
Carbon percentage in high speed steel tool material is 0.6 to 1.The hardness of carbon tool steels is increased, when it is alloyed with
Which of the following is not a dielectric material ?
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