Compared to mild steel, cast iron has (1) high compressive strength (2) high tensile strength (3) low compressive strength (4) low tensile strength The correct answer is_________________?

Related Mcqs:

1. The ultimate tensile strength of structural mild steel is about_________________?

   A. 160N/mm2
   B. 260N/mm2
   C. 420 N/mm2
   D. 520 N/mm2

2. For testing compressive and tensile strength of cement, the cement mortar is made by mixing cement and standard sand in the proportions of___________________?

   A. 1:2
   B. 1:3
   C. 1:4
   D. 1:6

3. Assertion A : Paints with white lead base are not recommended for painting of iron works. Reason R : Paints with white lead base do not check rusting of iron. Select your answer according to the coding system given below ?

   A. Both A and R are true and, R is the correct explanation of A
   B. Both A and R are true but R is not the correct explanation of A
   C. A is true but R is false
   D. A is false but R is true

4. Quick lime is (1) slow in setting (2) rapid in slacking (3) good in strength The correct answer is____________?

   A. only (1)
   B. only (2)
   C. both (1) and (2)
   D. both (2) and (3)

5. For testing compressive strength of cement, the size of cube used is_______________?

   A. 50 mm
   B. 70.6 mm
   C. 100 mm
   D. 150 mm

6. According to IS specifications, the compressive strength of ordinary portland cement after three days should not be less than________________?

   A. 7 MPa
   B. 11.5 MPa
   C. 16 MPa
   D. 21 MPa

7. Percentage of carbon content in mild steel is_______________?

   A. less than 0.25
   B. between 0.25 and 0.7
   C. between 0.7 and 1.5
   D. greater than 1.5

8. Assertion A : Pure lime takes a long time to develop adequate strength. Reason R : Pure lime has slow hardening characteristics. Select your answer according to the coding system given below ?

   A. Both A and R are true and R is correct explanation of A
   B. Both A and R are true and R is not a correct explanation of A
   C. A is true but R is false
   D. A is false but R is true

9. Which of the following represents a metamorphic rock? (1) slate (2) shale (3) quartzite . The correct answer is___________?

   A. only (3)
   B. both (1) and (3)
   C. both (2) and (3)
   D. all (1), (2) and (3)

10. Study the following statements. (1) Hydraulic lime is suitable for white washing, (2) Fat lime is suitable for whitewashing, (3) Hydraulic lime is suitable for making mortar, (4) Fat lime is suitable for making mortar. The correct answer is______________?

    A. (1) and (4)
    B. (2) and (3)
    C. (1) and (2)
    D. (3) and (4)