The slurry, in its movement down the kiln, encounters a progressively higher temperature. At first, the water is driven off and ___is liberated.(a) SiO2(b) CO2(c) Gypsum(d) CaOI have been asked this question during an online interview.This is a very interesting question from Wet Process in division Cement of Concrete Technology

The slurry, in its movement down the kiln, encounters a progressively

1.	The slurry, in its movement down the kiln, encounters a progressively higher temperature. At first, the water is driven off and ___is liberated.(a) SiO2(b) CO2(c) Gypsum(d) CaOI have been asked this question during an online interview.This is a very interesting question from Wet Process in division Cement of Concrete Technology
Answer» Correct answer is (b) CO2 To explain I WOULD say: At 900°C limestone decomposes, CaCO3.CaO + CO2 (endothermic reaction) CO2 is SWEPT AWAY by CURRENT AIR.

Discussion

No Comment Found

Related InterviewSolutions

The development of first 28 days strength is on account of the hydration of __________(a) C2S(b) C3S(c) C3A(d) C4AFThis question was addressed to me during an interview.This interesting question is from Hydration of Cement in division Cement of Concrete Technology
Cement is a material with adhesive and cohesive properties.(a) True(b) FalseI got this question at a job interview.The doubt is from Manufacture of Portland Cement in portion Cement of Concrete Technology
The blended meal is sieved and fed into a rotating dish called a ___(a) Clinker(b) Kiln(c) Granulator(d) Raw mealThe question was asked in exam.My enquiry is from Dry Process in division Cement of Concrete Technology
As the materials pass through the kiln their temperature is rised upto ____(a) 1300-1600 °C(b) 1100-1500 °C(c) 1300-1500 °C(d) 1100-1600 °CThis question was posed to me in an online quiz.This question is from Manufacture of Portland Cement in chapter Cement of Concrete Technology
To obtain cement dry powder, lime stones and shales or their slurry, is burnt in a rotary kiln at a temperature between ___(a) 1100° and 1200°C(b) 1200° and 1300°C(c) 1300° and 1400°C(d) 1400° and 1500°CThe question was posed to me during an interview.This interesting question is from Dry Process topic in section Cement of Concrete Technology
When chalk is used _______(a) It is finely broken up and dispersed in water in a wash mill(b) It has to be blasted, then crushed, usually in two progressively smaller crushers(c) It is sieved and fed into a rotating dish called a granulator(d) The raw materials are crushed and fed into a grinding mill, where they are dried and reduced into fine powderThis question was posed to me in an internship interview.The origin of the question is Wet Process topic in chapter Cement of Concrete Technology
What is the diameter of Clinker for making of Portland Cement?(a) .15-5 cm(b) .15-5 m(c) .3-4 cm(d) .3-4 mI have been asked this question in final exam.This key question is from Manufacture of Portland Cement in division Cement of Concrete Technology
Which compound may lead to a rapid stiffening of the paste with a large amount of the heat generation?(a) C2S(b) C3S(c) C3A(d) C4AFThe question was asked in my homework.This intriguing question originated from Hydration of Cement in division Cement of Concrete Technology
What is hydration of cement?(a) Chemical reaction of cement with acid(b) Chemical reaction of cement with water(c) Chemical reaction of cement with base(d) Chemical reaction of cement with salt, and acidI got this question by my school principal while I was bunking the class.My question is from Hydration of Cement topic in chapter Cement of Concrete Technology
The slurry with the desired lime content passes into the _____(a) Clinker(b) Rotary kiln(c) Slurry tank(d) Cement siloThe question was asked in my homework.This is a very interesting question from Wet Process topic in section Cement of Concrete Technology

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment