Related Questions
What is the correct answer?
4
Which of the following is not a charge material for cupola?
What is the correct answer?
4
Energy to be supplied to the radioactive nucleus for the emission of a neutron is __________ MeV.
What is the correct answer?
4
Specific __________ is a dimensionless quantity.
What is the correct answer?
4
For efficient performance of a blast furnace, the extent of reduction of Wustite (FeO) should be
A. 100% indirect reduction
C. 50-60% indirect reduction
D. 30-40% indirect reduction
What is the correct answer?
4
__________ is not used as the control rod material in a nuclear reactor.
What is the correct answer?
4
Which of the following does not have a sharp melting point?
What is the correct answer?
4
In a furnace with heating element temperature at 1700°C, the dominant mechanism of heat transfer will be
What is the correct answer?
4
Thermodynamic cycle involved in the working of a thermal power plant is the __________ cycle.
What is the correct answer?
4
Fire refining process is employed in case of
What is the correct answer?
4
As per international norms, the maximum permissible value of noise level in the industrial environment is __________ decibels as measured at a distance of 1.5 metres from the source of noise.
What is the correct answer?
4
If the head is doubled in & centrifugal pump, the power required will increase in the ratio of
What is the correct answer?
4
Addition of silicon to cast iron
A. Promotes graphite module formation
B. Improves its ductility
C. Does not promote graphite flakes formation
D. Increases the fluidity of molten metal
What is the correct answer?
4
Half life of a radioactive isotope corresponds to the time required for half of the __________ to decay.
What is the correct answer?
4
Annealing of white cast iron produces __________ iron.
What is the correct answer?
4
__________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C.
What is the correct answer?
4
Highest cutting speed is achieved by the __________ tool material.
What is the correct answer?
4
Plants produce carbohydrates from the CO2 present in the atmosphere by
B. Photochemical reaction
What is the correct answer?
4
Lead is added to 60:40 brass primarily to improve
What is the correct answer?
4
Auto collimator is used to check
What is the correct answer?
4
The dimensional formula of bulk modulus of elasticity is same as that of the
What is the correct answer?
4
Pick out the wrong statement.
A. Both annealing and normalising release the internal stresses of the material besides improving the mechanical properties
B. Low carbon steel does not respond to the heat treatment for hardening of the material, hence it is subjected to case hardening or surface hardening processes like cyaniding, carburising, nitriding etc., which produces high carbon outer layers resulting in increase of surface hardness
C. Induction hardening and flame hardening techniques are also used for surface hardening
D. Martempering of a material is a hardening process
What is the correct answer?
4
What is the percentage of chromium in 18-4-1 high speed steel?
What is the correct answer?
4
Wohler test is a destructive test to find out the __________ strength of a prepared metal specimen.
What is the correct answer?
4
Moist climate is the most favourable factor in the site selection far a
What is the correct answer?
4
Bad odour in sanitary latrines is reduced by periodically sprinkling
What is the correct answer?
4
Pipelines carrying various utilities in chemical industries are identified by their colour codes. The color of pipeline carrying steam is
What is the correct answer?
4
A furnace is made of a refractory brick wall of thickness 0.5 metre and thermal conductivity 0.7 W/m.°K For the same temperature drop and heat loss, this refractory wall can be replaced by a layer of diatomaceous earth of thermal conductivity 0.14 W/m.K and thickness __________ metre.
What is the correct answer?
4
Methyl orange indicator turns
A. Orange yellow in alkaline medium
B. Orange yellow in acidic medium
C. Colourless in acidic medium
D. Colourless in basic medium
What is the correct answer?
4
Magnesium is present in
What is the correct answer?
4
Consider an ideal solution of components A and B. The entropy of mixing per mole of an alloy containing 50% B is