Portland Cement MCQs : Here you will find MCQ Questions related to "Portland Cement" in Concrete Technology. These Portland Cement MCQ Questions Will help you to improve your Concrete Technology knowledge and will prepare you for various Examinations like Competitive Exams, Placements, Interviews and other Entrance Exmaniations
Question 1
Portland cement is the most common type of cement in general use around the world as a basic ingredient of concrete, mortar, stucco, and non-specialty grout.
A. Yes
B. No
C. Can be yes or no
D. Can not say
View Answer
Ans : A
Explanation: Yes, Portland cement is the most common type of cement in general use around the world as a basic ingredient of concrete, mortar, stucco, and non-specialty grout.
Question 2
How much percentage of gypsum added to Portland cement?
A. 0
B. 0.02
C. 0.05
D. 0.1
View Answer
Ans : B
Explanation: It is a fine powder, produced by heating limestone and clay minerals in a kiln to form clinker, grinding the clinker, and adding 2 to 3 percent of gypsum.
Question 3
The materials in cement clinker are?
A. alite
B. belite
C. tri-calcium aluminate
D. All of the above
View Answer
Ans : D
Explanation: The materials in cement clinker are alite, belite, tri-calcium aluminate, and tetra-calcium alumino ferrite. The aluminium, iron, and magnesium oxides are present as a flux allowing the calcium silicates to form at a lower temperature,[18] and contribute little to the strength.
Question 4
Which type of portland cement provides moderate sulfate resistance, and gives off less heat during hydration?
A. Type I
B. Type III
C. Type II
D. Type IV
View Answer
Ans : C
Explanation: Type II provides moderate sulfate resistance, and gives off less heat during hydration. This type of cement costs about the same as type I.
Question 5
________ is not use to make Portland Cement (PC).
A. Sand
B. Calcareous Rocks
C. Argillocalcareous Rocks
D. Argillaceous Rocks
View Answer
Ans : A
Explanation: Sand is mixed with Cement to make concrete instead of making cement. Materials which we get from these 3 rocks are useful to make healty PC.
Question 6
Which one doesn’t comes under Calcareous Rocks?
A. Limestone
B. Cement rock
C. Chalk
D. Marine shell deposits
View Answer
Ans : B
Explanation: Cement Rock comes in Argillocalcareous Rocks. And Calcareous Rocks have Limestone, Marl, Chalk, Marine Shell Deposits.
Question 7
What is the diameter and length of the kiln respectively?
A. 200m and 200m
B. 6m and 6m
C. 200m and 6m
D. 6m and 200m
View Answer
Ans : D
Explanation: They are produced in a range of sizes and units with diameters up to 6 m and lengths up to 200 m have been made.
Question 8
Portland cement is not caustic?
A. TRUE
B. FALSE
C. Can be true or false
D. Can not say
View Answer
Ans : B
Explanation: Portland cement is caustic, so it can cause chemical burns. The powder can cause irritation or, with severe exposure, lung cancer, and can contain a number of hazardous components, including crystalline silica and hexavalent chromium.
Question 9
Which Portland cement is generally known for its low heat of hydration?
A. Type I
B. Type II
C. Type III
D. Type IV
View Answer
Ans : D
Explanation: Type IV Portland cement is generally known for its low heat of hydration.
Question 10
The production of Portland cement contributes to about ________ of world carbon dioxide emission
A. 0.01
B. 0.05
C. 0.1
D. 0.2
View Answer
Ans : C
Explanation: The production of Portland cement contributes to about 10% of world carbon dioxide emission. The International Energy Agency has estimated that cement production will increase by between 12 and 23% by 2050 to meet the needs of the world's growing population