Related Questions

Which of the following is slaked lime?
A Ca(OH)2
B CaO
C CaCO3
D CaCl2
K produces 100 parts twice as fast as G does. G produces 100 parts in 40 minutes. If each produces parts at a constant rate, how many parts will K produces in 6 minutes.
A 30
B 25
C 20
D 15
Which of the following is a chemical formula of quicklime?
A Ca2O
B Ca2CO3
C CaO2
D CaO
How much temperature is maintained during quicklime manufacture in the calcination zone of the vertical shaft kiln?
A 500°C
B 750°C
C 1000°C
D 1500°C
Quick lime (or caustic lime)
A Is obtained by the calcination of pure lime stone
B Has great affinity to moisture
C Is amorphous
D All the above
Machine A produces bolts at a uniform rate of 120 every 40 seconds and Machine B produces bolts at a uniform rate of 100 every 20 seconds. If the two machines run simultaneously , how many seconds will it take for them to produce a total of 200 bolts.
A 22
B 25
C 28
D 32
Machine A produces bolts at a uniform rate of 120 every 40 seconds, and Machine B produces bolts at a uniform rate of 100 every 20 seconds. If the two machines run simultaneously, how many seconds will it take for them to produce total of 200 bolts?
A 22
B 25
C 28
D 32
Switching of a lamp in house produces noise in the radio. This is because switching operation produces
A Arcs across separating contacts
B Mechanical noise of high intensity
C Both mechanical noise and arc between contacts
D None of the above
Calcination of limestone is not done in a __________ kiln for producing lime.
A Vertical shaft
B Rotary
C Fluidised bed
D Fixed bed
Calcination of limestone to produce lime is done in a __________ kiln.
A Tunnel
B Rotary
C Vertical shaft
D Both B and C

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