Cement MCQs
Cement MCQs cover the MCQs on the following topics;
- Grades of Cement
- Types of Cement and Uses
- Manufacture of Cement
- Ingredients of Cement
- Properties of Cement
By mixing ordinary cement with _____ the waterproof cement is prepared.
a) Resins
b) Water repellent chemicals
c) Sulpho-aminate
d) Metal stearates
Answer: d
These days, the method which is used for manufacturing of cement is the wet method.
a) True
b) False
Answer: b
In the manufacture of cement stored, how is the argillaceous material used?
a) Silos
b) Storage tanks
c) Bags
d) Basins
Answer: d
Select the one which is rarely used as fuel in the burning stage of the wet process of cement manufacturing
a) Wood
b) Gas
c) Pulverised coal
d) Fuel oil
Answer: a
____is the weight of a bag of cement.
a) 1 kg
b) 50 kg
c) 25 kg
d) 35 kg
Answer: b
____is released during the production of clinker.
a) CaCO3
b) CO2
c) Ca(OH)2
d) CO
Answer: b
The advantage of using precalcine is ____
a) Fuel efficiency
b) Larger clinker size
c) Fine-grained cement
d) Sound cement
Answer: a
____ is the stone, which provides the calcareous component required for the manufacture of cement
a) Lime
b) Limestone
c) Marble
d) Granite
Answer: b
For the cement manufacture process, shale provides argillaceous components required
a) False
b) True
Answer: b
Select the one which is not a feature of cement Kiln
a) Employs alternate fuels
b) Natural alkaline environment
c) High temperature
d) Portable
Answer: d
For ________, the grade 43 OPC shall be rejected if it remains in bulk storage in the factory.
a) More than 3 months
b) More than 6 months
c) More than 1 month
d) More than 4 months
Answer: b
______ is the ratio of the percentage of alumina to iron oxide in OPC 43 grade.
a) 3.5
b) 0.66
c) 0.1
d) 0.05
Answer: b
______ is the required minimum fitness for grade 53 OPC.
a) 580 cm2/g
b) 370 cm2/g
c) 580 m2/kg
d) 370 m2/kg
Answer: d
After burning stages , _____ cannot be added in 33 grade OPC .
a) Gypsum
b) Water
c) Colouring Agents
d) Clay
Answer: d
There are _____ major ingredients that are present in the composition of cement.
a) 8
b) 5
c) 10
d) 6
Answer: a
In the amount of____ sulphur is present in cement.
a) 0.5 – 6 g
b) 1 – 2.5g
c) 0.5 – 6%
d) 1 – 2.5%
Answer: d
The percentage of magnesium oxide which is harmful to cement is after 5%.
a) True
b) False
Answer: a
What is the reason that natural cement is used very limitedly?
a) Brown in Color
b) Standard consistency is not met with
c) Particle size is too fine
d) Sets too quickly
Answer: d
By whom and in which year the Portland cement was invented?
a) William Aspdin, 1824
b) William Aspdin, the 1840s
c) Joseph Aspdin, the 1840s
d) Joseph Aspdin, 1824
Answer: b
______is most dominant constituent of cement.
a) Silica
b) Lime
c) Magnesia
d) Alumina
Answer: b
____ is the maximum percentage by mass of performance improvers that can be added in grade 33 OPC.
a) 5
b) 1
c) 0.5
d) 0.1
Answer: a
Select which one is the correct abbreviation of PPC
a) Portland Pozzolana Cement
b) Portland Produced Cement
c) Perfect Portland Cement
d) Productive Portland Cement
Answer: a
For massive concrete work, high alumina cement can be used.
a) True
b) False
Answer: b
On the ability to set in presence of water, how many types of cement are there?
a) 4
b) 3
c) 2
d) 5
Answer: c
_____is the property provided by the air-entraining cement.
a) Workability
b) Soundness
c) Fineness
d) Strength
Answer: a
In marine structure the, _____is used.
a) Expanding cement
b) High alumina cement
c) White cement
d) Blast furnace slag cement
Answer: d
Select the pair which is wrong mention below, of the compound and colored cement
a) Iron oxide-yellow
b) Manganese dioxide-brown
c) Chromium oxide-green
d) Cobalt-black
Answer: d
The ideal cement that is used in the construction of dams is low heat.
a) True
b) False
Answer: a
_____ is not pozzolanic material.
a) Cinder
b) Silica fume
c) Fly ash
d) Slag
Answer: a
_____ is due to a deficiency of lime in cement.
a) Quick setting of cement
b) Disintegration of cement
c) Unsound cement
d) Expansion of cement
Answer: a
______is an effect, calcium sulphate have on cement.
a) Retards setting action
b) Acts as flux
c) Imparts color
d) Reduces strength
Answer: a
Select which one is not an advantage of rapid hardening cement
a) Faster construction
b) Short curing period
c) Light in weight
d) Higher final setting time
Answer: d
Which one of the following is not a result of the field test performed on cement?
a) There should not be any lumps
b) When you put your hand in a bag of cement it should feel cold
c) The color should be blackish-grey
d) When rubbed with a finger it should not be gritty
Answer: c
Which one of the following equipment is used to test the setting time of cement?
a) Vicat apparatus
b) Vibrator
c) Universal testing machine (UTM)
d) Core cutter
Answer: a
___ is the initial setting time of cement.
a) 1 hour
b) 30 minutes
c) 15 minutes
d) 30 hours
Answer: b
Select, which one adds a quick-setting property to cement
a) Aluminium oxide
b) Silicon dioxide
c) Iron oxide
d) Magnesium oxide
Answer: a
______ imparts greenish-grey color to cement.
a) Calcium silicate
b) Calcium aluminate
c) Calcium aluminate ferrite
d) Calcium carbonate
Answer: c
___ is the result of an excess of Alkali in cement.
a) Efflorescence
b) Dry cement paste
c) Less plasticity
d) Unsound cement
Answer: a
__is the function that the iron oxide performs in cement.
a) Increases strength
b) Acts as flux
c) Increases setting time
d) Makes cement sound
Answer: b
The grade 33 cement indicate ___
a) Tensile strength of 33 kN/m2
b) Tensile strength of 33 N/mm2
c) Compressive strength of 33 kN/m2
d) Compressive strength of 33 N/mm2
Answer: d
In how many grades the ordinary portland cement has been classified?
a) 2
b) 10
c) 3
d) 5
Answer: c
In ______ the grade 43 OPC is used widely.
a) High rise buildings
b) Plastering
c) House construction
d) Finishing works
Answer: c
According to the result, after how many days the strength of cement is tested and graded?
a) 7 days
b) 14 days
c) 1 day
d) 28 days
Answer: d
With time the compressive OPC strength increases.
a) True
b) False
Answer: a
____ is the average size of a particle of cement.
a) 75 microns
b) 45 microns
c) 15 microns
d) 100 microns
Answer: c
Which of the following is the meaning of the soundness of cement?
a) Ability to flow when mixed
b) Ability to make ringing noise when struck
c) Ability to form strong and sound structure
d) Ability to retain volume after setting.
Answer: d
The time is called ________, it is elapsed from the instance of adding water until paste ceases to behave as a fluid.
a) Final setting time
b) Initial setting time
c) Intermediate setting time
d) Absolute setting time
Answer: b
_______ is due to the use of coarser cement particles.
a) Low consistency
b) Higher strength
c) Low durability
d) Higher soundness
Answer: c
If not washed off with water immediately, the wet cement can cause severe skin burns.
a) True
b) False
Answer: a
Green cement is:
a) Green colored cement
b) Cement mixed with plant products
c) Cement mixed with green algae
d) Cement mixed with recycled materials
Answer: d
