Related Questions
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4
__________ pipe is the most suitable for carrying sanitary drainage.
B. Reinforced cement concrete
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4
Which of the following metals reacts violently with water?
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4
Which of the following is the largest quantum of pressure?
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4
Suitability of steel for its use in cable is judged by its strength in
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4
The most important consideration, while designing the refrigeration system of an aircraft is that the refrigeration system
A. Is as light as possible
C. Employs minimum quantity of refrigerant
D. Consumer minimum horse power
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4
__________ rubber is generally used for making 'O' rings used for vacuum sealings.
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4
Natural water contains approximately __________ percent of heavy water.
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4
Ferromagnetic materials owe their properties to __________ inner sub-shells.
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4
The most suitable material of construction for a sewer to carry sewage under high pressure is
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4
The ratio of the shear stress to the principal stress on a principal plane is
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4
Electrometallurgical methods of metal extraction is normally used for those metals
A. Whose oxide/ore is not reduced by carbon
B. Which fall in the category of alkali & alkaline earth metals
C. Which stands higher in the electrochemical series of the metal
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4
__________ are normally subjected to sub-zero treatment.
B. Gauges or precision parts
D. Non machinable materials
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4
Thermodynamic cycle involved in the working of a thermal power plant is the __________ cycle.
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4
Euler number is defined as the ratio of inertia force to __________ force.
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4
A pycnometer is used for the measurement of
A. Flow rate of molten metal
B. Specific gravity of a liquid
D. Concentration of a solution
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4
Transformation range for ferrous material is the temperature interval during which __________ is formed during its heating.
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4
As per the Indian boiler regulation (IBR), the type of joint preferred for the circumferential joint is the __________ joint.
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4
On decreasing the grain size of a polycrystalline material, the property most likely to deteriorate is
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4
Maximum hardenability of steel depends upon its
D. Alloying elements content
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4
In condensers used in thermal power plants, steam is normally used in shell side and cooling water on the tube side, because of the reason that
A. Compared to the mass flow rate of cooling water, the rate of condensation of steam is invariably smaller
B. Maintaining vacuum on tube side is more difficult than that on the shell side
C. Water velocity can be increased conveniently to increase the overall heat transfer co-efficient because of its lower specific volume compared to steam
D. Condenser can act as a storage unit for condensed steam
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4
Screws are specified by their __________ diameters.
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4
Silicon crystal can be converted to p-type semiconductor by doping with
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4
'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)
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4
Which of the following are made out of the carbon steel having carbon content of 0.9 to 1%?
A. Small punches, broaches reamers and springs
B. Cutlery, screws, rivets and files
C. Mandrels, twist drills, small lathe tools and razors
D. Forgings like can shaft, structural steel plate, threading dies and drawing dies
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4
The following type of bonding is strongly directional in solids.
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4
Photographic plates are coated with
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4
Absolute zero pressure can be attained at a temperature of
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4
One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C). If the thermal conductivity of furnace wall is 3 W. m- 1. k-1 and the wall thickness is 0.3 m, the maximum heat loss (in W/m) is
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4
When an isolated thermodynamic system executes a process,
B. Heat transfer takes place
C. Mass flow occurs across the boundary of the system
D. No chemical reaction takes place within the system
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4
Faraday's law of electrolysis is related to the
B. Atomic number of the cation
C. Equivalent mass of the electrolyte