Related Questions

Melt spinning of polymers involves the forcing of polymer melt through spinnerettes (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter polymer melt to harden into filaments. Melt spinning is not used in case of the __________ fibres.
A Acrylic
B Polyester
C Nylon 6:6
D Polypropylene
During conversion of ammonium carbamate into urea, presence of large excess of water
A Increases the yield of urea
B Adversely affects the yield of urea
C Reduces the evaporator load by diluting the urea solution
D Does not affect the yield of urea
Prilling of urea should be accomplished (in a sprayer) just above the melting point of urea with minimum of retention time, otherwise it will result in
A Low bulk density product
B Biuret formation
C Non-spherical prills
D Substantially wet non-flowing and sticky product
Fertiliser plant making ammonium sulphate employing gypsum-ammonia reaction (usual practice is to use ammonia and sulphuric acid) is located at
A Rourkela (under SAIL)
B Bokaro (under SAIL)
C Sindri (under FCI)
D Baroda (under G.S.F.C.)
At a college football game, 4/5 of the seats in the lower deck of the stadium were sold. If one-fourth of all the seating in the stadium is located in the lower deck, and if 2/3 of all the seats in the stadium were sold, what fraction of the unsold seats in the stadium were in the lower deck?
A 3/20
B 1/6
C 1/3
D 7/15
At a college football game, 4/5 of the seats in the lower deck of the stadium were sold. If one-fourth of all the seats in the stadium were located in the lower deck, and if 2/3 of all the seats in the stadium were sold, what fraction of the unsold seats in the stadium were in the lower deck?
A 3/20
B 1/6
C 1/3
D 7/15
At a collegae football game, 4/5 of the seats in the lower deck of the stadium were sold. If one-forth of all the seating in the stadium is located in the lower deck and if 2/3 of all the seats in the stadium were sold. What fraction of the unsold seats in the stadium were in the lower deck?
A 3/20
B 1/6
C 1/3
D 7/15
When the air is passed through an insulated chamber having sprays of water maintained at a temperature higher than the dew point temperature of entering air but lower than its dry bulb temperature, then the air is said to be
A Cooled and humidified
B Cooled and dehumidified
C Heated and humidified
D Heated and dehumidified
The wet bulb temperature is lower in dry air than in wet air at the same temperature. A dry bulb thermometer registers a higher temperature than a wet bulb thermometer except at __________ percent relative humidity.
A 0
B 100
C 50
D None of these
Temperature and pressure in urea autoclave is
A 120°C and 300 atm
B 190°C and 200 atm
C 400°C and 550 atm
D 200°C and 10 atm

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