০০। "'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)
ক) V
খ) V/2
গ) 2V
ঘ) 3V
০১। "Encyclopaedia of Chemical Technology" has been
ক) authored by Kirk Othmer.
খ) edited by Perry and Chilton.
গ) edited by Kirk Othmer.
ঘ) authored by Perry and Chilton.
০২। α-rays are
ক) negatively charged.
খ) positively charged.
গ) neutral.
ঘ) same as X-rays.
০৩। 'Amortization' in respect of financial obligation of a company means the
ক) liquidation of financial obligations on instalment basis.
খ) commitment of financial obligation on priority.
গ) liquidation of all the obsolete equipments of the company.
ঘ) modernisation of the plant equipments.
০৪। 'Cryogenics' is concerned with the generation & use of low temperature in the range of
ক) 0°K to 123°K
খ) 0°C to - 123°C
গ) 0°C to - 273°C
ঘ) 0°K to 273°K
০৫। 'End cooler' or 'after cooler' is employed in air compressor mainly to
ক) remove oil vapour or moisture from air.
খ) cool the dry air before use.
গ) reduce the volumetric capacity of receiver.
ঘ) none of these.
০৬। 'Flare tower' used in industry is meant for
ক) venting off (after burning) the excess inflammable/toxic gases at high pressure.
খ) absorbing the pollutant gases from the furnace exhaust.
গ) cooling of furnace exhaust gases.
ঘ) none of these.
০৭। 'GASOHOL' widely used in Brazil as a motor fuel is a mixture of alcohol and
ক) petrol.
খ) LPG.
গ) light hydrocarbon gases (e.g. butane or propane).
ঘ) none of these.
০৮। 'Ice point' is designated on Farenhite temperature scale by
ক) 0°
খ) 32°
গ) 62°
ঘ) 212°
০৯। 'Sterilised zone' around a hazardous chemical industry is an area with __________ km radius around it, in which the total population/inhabitants should be less than 20000 preferably in the upwind direction.
ক) 0.5
খ) 5
গ) 25
ঘ) 50
১০। 1% concentration of water vapor in air is equivalent to __________ ppm (parts per million).
ক) 10000
খ) 1000
গ) 100
ঘ) 10
১১। A 2 kg object weighs 1.8 kgf on a spring balance. The value of 'g' at that location in m/sec2 is
ক) 8.82
খ) 9.81
গ) 10.88
ঘ) 0.95
১২। A balanced draught boiler furnace employs __________ draught fan.
ক) induced
খ) forced
গ) both 'a' & 'b'
ঘ) neither 'a' nor 'b'
১৩। A boy weighing 110lb climbs up a 50 ft high vertical destination in 100 seconds. Horse power of the boy is __________ hp.
ক) 0.1
খ) 0.5
গ) 0.8
ঘ) 1
১৪। A coal with high __________ content will ignite most easily.
ক) hydrogen
খ) oxygen
গ) volatile matter
ঘ) fixed carbon
১৫। A colloidal system, in which a liquid is dispersed in gas is called a/an
ক) gel
খ) aerosol
গ) foam
ঘ) emulsion
১৬। A common disinfectant used in village wells for disinfection of water is
ক) free chlorine
খ) bromine
গ) iodine
ঘ) potassium permanganate
১৭। A compact estimate about the amount of materials handling between various work stations is obtained from the
ক) gantt chart
খ) bin chart
গ) string diagram
ঘ) travel chart
১৮। A controller action in which there is a con-tinous relation between the values of controlled variable and the rate of change of conrolled output signal is called the __________ action.
ক) proportional
খ) integral
গ) derivative
ঘ) none of these
১৯। A cylinderical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson's ratio of the rod is