Q.1
The amount of water evaporated in kg per kg of fuel burnt in a boiler is called the __________ of a boiler.
Q.2
'GASOHOL' widely used in Brazil as a motor fuel is a mixture of alcohol and
Q.3
Flywheel is provided in a machine to
Q.4
__________ has a negative co-efficient of linear expansion.
Q.5
Methyl orange indicator turns
Q.6
Normalising of a casting does not
Q.7
Normalising of an object does not
Q.8
In an eutectic system, two elements are completely
Q.9
Unbreakable crockeries are made from __________ polymers.
Q.10
Work hardenable alloy steel used to make the bucket wheel excavators, blades of bulldozers and other earth moving equipments contain iron, carbon and
Q.11
Two stroke engine compared to a four stroke engine has
Q.12
Steel is welded using the __________ flame.
Q.13
Inertial forces are obtained, when the elastic forces are multiplied by __________ number.
Q.14
Lubricants can be used to
Q.15
Crystallisation of polymers is an undesirable property. Crystallisation of celluloid is prevented by adding
Q.16
Semi-conductors normally employ __________ bonding.
Q.17
__________ is not used as the control rod material in a nuclear reactor.
Q.18
Young's modulus of a material is the measure of its
Q.19
Square steel key is normally strong in failure by shear & crushing. Keys are normally made of __________ steel bars.
Q.20
An engineer's hammer is made of high __________ steel.
Q.21
Reduction reaction involves the
Q.22
Lubrication is done to control
Q.23
In case of compression of one kg of air, the work done will be the least, when the value of polytropic index 'n' is
Q.24
Large diameter reinforced cement concrete (RCC) pipes are generally joined by __________ joint.
Q.25
Out of the following materials, the one which generally exhibits an yield point is
Q.26
__________ is used for tying the steel coloumns to concrete foundation.
Q.27
A pipeline buried in soil is commonly protected from corrosion by
Q.28
Which of the following is not an ore of iron?
Q.29
The thermodynamic law, PVy = constant, is not followed by the
Q.30
Neutrons are present in all atoms except that of
Q.31
__________ is the hardest material out of the following.
Q.32
Magnesium is present in
Q.33
Which of the following has rotten eggy smell?
Q.34
Which of the following is not the commercial name of polymethyl-methacrylate (PMMA)?
Q.35
The routing function in a production system design is concerned with the
Q.36
What is the percentage of chromium in 18-4-1 high speed steel?
Q.37
No cutting fluid is normally used, while machining
Q.38
Which of the following is not a ferromagnetic material?
Q.39
Which of the following pairs regarding the effect of alloying elements in steels are not matched correctly?
Q.40
Corrosion of metals can not be prevented by its
Q.41
Which of the following materials has the least scrap value?
Q.42
At 100% relative humidity, the dew point temperature of moist air is
Q.43
One ton of refrigeration is not equivalent to the heat removal rate of
Q.44
In practice, the compression ratio of compression-ignition (CI) engine ranges from
Q.45
In sheet metal forming, stretcher strains occur in
Q.46
Which is the most suitable joint for the pipes, with are laid submerged under water, where the bottom of the river bed is uneven?
Q.47
Turning/machining of __________ usually does not require any cutting fluid.
Q.48
Nitrogen compounds are not used in the manufacture of
Q.49
A semi-conductor is damaged & behaves like a conductor, on passing a strong electric current through it, because it heats up the crystals & breaks the covalant bonds resulting in __________ electrons.
Q.50
Secondary hardening in steels arises out of the
0 h : 0 m : 1 s