How many atoms are present in one gm-atom of an element
2 x 1023
6 x 1023
5 x 105
6 x 1032
The essential ingradient of all the synthesis gas is
Which of the following is the most adverse factor challenging the choice of mercury electrolytic cell process for the production of caustic soda
High cost of mercury.
High specific gravity of mercury.
Non-availability of high purity mercury.
Pollution of water stream by mercury.
The value of work index does not change materially from one equipment toanother.
If the value of work index determined for close circuit grinding is Wi, then the same for open circuit grinding will be
Na2CO3 is called
Plaster of Paris
Which of the following valves will incur maximum pressure drop for the same discharge of water
Nominal size of the discharge pipe of a pump is usually __________ the nominal size of the inlet pipe
Capillary tube method of viscosity measurement is based on the
NONE OF THESE
Working principle of bimetallic thermometers is difference in linear co-efficient of thermal expansion of two strips of different metals weldedtogether.
Which of the following has the maximum thermal co-efficient of linear expansion
all (a), (b) and (c).
a compound of carbon and iron.
characterised by an orthorhombic crystal structure.
Which of the following is not produced commercially from sea water
Magnesium & potassium compounds
Chilled iron castings are
highly wear resistant
NONE OF THESE
soft on surface
__________ mill is not a revolving mill
Which of the following is the most widely used heat insulating material for pipelines carrying steam
Tar dolomite bricks followed by asbestos.
85% magnesia cement and glass wool.
Cotton followed by aluminium foil.
__________ furnace is generally used in the non-ferrous foundaries
For steady ideal fluid flow, the Bernoulli's equation states that the
energy is constant along a stream line, but may vary across stream lines
energy is constant throughout the fluid
NONE OF THESE
velocity is constant along a stream line.
__________ mean diameter of particles is given by
Two dimensional stream function
is constant along a stream line.
is constant along an equipotential surface.
relates velocity and pressure.
None of these.
Steel tower used for the storage of oleum
is lined with rubber.
is lined with acid-proof bricks.
need not be lined.
is lined with lead.
The root locus method, a pole of a transfer function G(s) is the value of s for which G(s) approaches
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Rates Of Chemical Reactions And Chemical Kinetics
GATE Chemical Engineering
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Physical and Chemical Changes