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.Management Sciences
Category: Chemical Engineering Basics
Boiling point of water gets lowered at high altitudes (e.g., hills), because ___________________?
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A. Temperature is low
B. Atmospheric pressure is low
C. Atmospheric pressure is high
D. None of these
Boiler draught of 10 mm water column is equivalent to_____________________?
A. 1 kgf/m2
B. 10 kgf/m2
C. 10 kgf/mm2
D. 1 kgf/mm2
Which of the following alloying elements is present in maximum percentage in high speed steel ?
A. Molybdenum
B. Chromium
C. Tungsten
D. Vanadium
With increase in compression ratio, the volumetric efficiency of air compressor____________________?
A. Increases
B. Decreases
C. Remain same
D. May increase or decrease (depends on the suction pressure)
Out of the following substances, one ton of ______________ will store the maximum heat for a rise of 30°C in temperature ?
A. Steel
B. Lignite
C. Water
D. Lime stone
Larger length & diameter water pipes are made by____________________?
A. Electrical resistance welding
B. Die casting
C. Semi-centrifugal casting
D. Continuous casting
Gross national product (GNP) means the total value of _______________ in a country ?
A. Goods produced
B. Gold reserve
C. Earning of the citizens
D. Taxes paid
Electrochemical corrosion can occur, only if ________________ is present in contact with metal?
A. Air
B. Oxygen
C. Liquid medium
D. Gaseous medium
Temperature attained in soldering of metals is about ________________ °C?
A. 150-300
B. 400-500
C. 650-800
D. 1000-1100
Transformer cores are normally made from ______________________?
A. Soft ferrites
B. High purity iron
C. Grain oriented Fe-Si alloy
D. Al-Ni-Co alloy
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