Related Questions

If the evaporator temperature of a plant is lowered, keeping the condenser temperature constant, the h.p. of compressor required will be
A Same
B More
C Less
D More/less depending on rating
Recrystallization temperature is one
A At which crystals first start forming from molten metal when it is cooled
B At which new spherical crystals first begin to form from the old deformed one when a strained metal is heated
C At which change of allotropic form takes place
D At which crystals grow bigger in size
The cold working of metals is carried out __________ the recrystallization temperature.
A Above
B Below
C At
D None of these
Other parameters remaining same, the recrystallisation temperature of an alloy is lowered, when
A Strain rate is increased
B Grain size is increased
C Prior cold deformation is increased
D Not affected by any of the above parameters
Corrosion rate can not be lowered by reducing the __________ of the corroding medium.
A Concentration
B Velocity
C Temperature
D None of these
In a single casing, multistage pump running at constant speed, the capacity rating is to be slightly lowered. It can be done by
A Designing new impeller
B Trimming the impeller size to the required size by machining
C Not possible
D Some other alterations in the impeller
If the cash reserve ratio is lowered by the RBI, its impact on credit creation will be to
A increase it
B decrease it
C no impact
D None of the above
In case of frequency modulation, modulating voltage remains constant if the modulating frequency is lowered, then
A Amplitude of distant sidebands decreases
B Amplitude of distant sidebands increases
C Amplitude of distant sidebands remains constant
D Amplitude of distant sidebands first increases, then decreases
Boiling point of water gets lowered at high altitudes (e.g., hills), because
A Temperature is low
B Atmospheric pressure is low
C Atmospheric pressure is high
D None of these
The popular notion that a tree's age can be determined by counting number of internal rings in its trunk is generally true. Howeevr, to help regulate the internal temperature of the tree, the outermost layers of wood of the Brazilian ash often →peel away when the temperature exceeds 95 degrees Fahrenheit, leaving the tree with fewer rings than it would otherwise have. So only if the temperature in the Brazilian ash's environment never exceeds 95 degrees Fahrenheit →elav eing the tree with fewer rings than it would otherwise have. So only if the reliable measure of the tree's age. Which of the following is an assumption on whish the argument above depends?
A The growth of new rings in a trees is not a function of levels of precipitation.
B Only the Brazilaian ash loses rings because of excessive heat.
C One day of temperatures above 95 degrees Fahrenheit will cause the Brazilian ash to lose one ring.
D The internal rings of all tress are of uniform thickness

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