Q.1
The best criterion for analysing an economic investment is the
Q.2
Atomic __________ of an element is a whole number.
Q.3
Specific heat of an ideal gas depends upon its
Q.4
Rankine cycle comprises of two isothermal and two __________ processes.
Q.5
__________ iron is produced by the annealing of white cast iron.
Q.6
Brinell Hardness Number (BHN) for talc is approximately in the range of
Q.7
Gantt charts are used for streamlining the
Q.8
Materials having __________ lattice structure are usually the most ductile.
Q.9
Which of the following will resist maxi-mum shock & vibration without cracking?
Q.10
Which of the following is not used as a fuel in rocket propellaht ?
Q.11
First empirical temperature scale conceived is the __________ temperature scale.
Q.12
If a heat transfer surface is pock-marked with a number of cavities, then as compared to a smooth surface the heat transfer by __________ will not increase.
Q.13
Constituents of stellite are
Q.14
Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same weight
Q.15
The most commonly used combustion system manufactured in India for the thermal power plant boilers is the __________ combustion system.
Q.16
Toughness of a material is measured by the
Q.17
Fatigue resistance of a material is measured by the
Q.18
Parallel straight line pattern of temperature distribution for both hot and cold fluids is observed in case of heat exchanger of the type
Q.19
Unit of viscosity in CGS system is
Q.20
__________ is not a heat treatment process.
Q.21
Nitrogen is not an essential component of
Q.22
Pick out the wrong statement.
Q.23
Materials having resistivity ranging from 1 to 100 ohm. cm is termed as
Q.24
Isotropic materials have the same __________ in all directions.
Q.25
Carbon is present in the form of __________ in grey cast iron.
Q.26
The stress at which a metal fails by fatigue lies
Q.27
Pick out the wrong statement. If the net positive suction head (NPSH) requirement of a pump is not satisfied, then
Q.28
Source of heat supply in a cupola is
Q.29
Which of the following is an example of cathodic protection of metals against corrosion ?
Q.30
Buoyancy force depends on the __________ the liquid.
Q.31
Which one is neutral in character ?
Q.32
What is the effect on the performance of the economiser in the thermal power plant boiler, if the feed water temperature is very low due to preheaters being out for repairs or starving of steam supply ?
Q.33
Consideration of the creep is the most important in case of the
Q.34
Creep consideration is the most important in case of the
Q.35
What is the value of included angle of a triangular notch for maximum discharge ?
Q.36
Pick the odd man out of the following.
Q.37
In age-hardenable alloys, maximum ductility is obtained
Q.38
Which of the following materials has the maximum shrinkage allowance ?
Q.39
Alloys having more than 80% copper are generally more
Q.40
Pipelines carrying various utilities in chemical industries are identified by their colour codes. The color of pipeline carrying steam is
Q.41
The basic function of the drum in a boiler is to
Q.42
Nusselt number is related to Grashoff number (Gr) in turbulent & laminar flow respectively, in respect of free convection over a vertical flat plate as
Q.43
On decreasing the grain size of a polycrys-talline material, the property most likely to deteriorate is
Q.44
Which of the following metals is the most prone to work hardening?
Q.45
Wohler test is a destructive test to find out the __________ strength of a prepared metal specimen.
Q.46
Presence of small quantity of sulphur in low carbon steel improves its
Q.47
A suitable lubricant used for watches is
Q.48
Powder metallurgy is used to produce
Q.49
A polymer is termed as an 'elastomer', if its percentage elongation is more than 100%. An elastomer is termed as 'rubber' if its percentage elongation is more than __________ percent.
Q.50
The phenomenon of strain-ageing is generally experienced with
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