SSC JE CE Quiz_Building Materials Booster Quiz -11 for AE & JE Exams Exams

Question 1

Consider following factors:

1) Type of cement

2) Type of aggregates

3) Age of concrete

4) Size, shape of the specimen

5) Type of reinforcement

Which of the above factors affect the result of the rebound hammer test:

Question 2

Consider following statements regarding cement.

1) Finer cement has high early strength

2) PPC produces less heat of hydration than OPC

3) Rapid hardening cement is finer than OPC

4) Initial setting time of low heat cement is lesser than OPC

Correct statement is/are

Question 3

Statement (I): Coarser the particles, less is optimum moisture content

Statement (II): The specific surface area of coarser particle is less.

Question 4

When the deposit of efflorescence is more than 10% but less than 50% of the exposed area of the brick, the presence of efflorescence is

Question 5

Which one of the following light weight elements will be added to enhance the protective properties for X-ray shielding mortars?

Question 6

Match List-I (Name of defect) with List-II (Definition) and select the correct answer using the codes given below the lists.

List-I

A) Cupping

B) Bowing

C) Chucks

D) Knots

List-II

1) caused by wood limbs encased by the wood of the free trunk

2) Caused by grain irregularities in the board and can be eliminated by proper stacking

3) Small cracks appearing at the ends of boards caused by too rapid drying

4) Unequal shrinking in the radial and tangential direction

A - B - C - D

Question 7

Consider the following statements:
1) IS 3583 refers to Burnt Clay Paving Bricks.
2) IS 5779 refers to Burnt Clay Soling Bricks.
3) IS 3952 refers to Burnt Clay Hollow Bricks.
4) IS 2222 refers to Burnt Clay Lay Bricks.
Which of the above statements are correct?

Question 8

Consider the following statements:
1) A high aggregate impact value indicates strong aggregates.
2) A low aggregate crushing value indicates high crushing strength of aggregates.
3) Aggregates having elongation index values greater than 15% are generally considered suitable for pavement construction.
4) Flakiness index of aggregates should not be less than 25% for use in road construction.
Which of the above statements are correct?

Question 9

In mild steel specimens subjected to tensile test cycle, the elastic limit in tension is raised and the elastic limit in compression is lowered, This is called

Question 10

For the marine structure suitable cement is