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Compared to mild steel, cast iron has (i) High compressive strength (ii) High tensile strength (iii) Low compressive strength (iv) Low tensile strength
Compared to mild steel, cast iron has
(i) High compressive strength
(ii) High tensile strength
(iii) Low compressive strength
(iv) Low tensile strength
The influence of shape of aggregate in strength and workability of concrete are given below in statements S1, S2, S3 and S4. Which of the statements are correct? S1: Rounded aggregate produces concrete with high workability and low strength. S2: Angular aggregate produces concrete with high workability and low strength. S3: Rounded aggregate produces concrete with low workability and high strength. S4: Angular aggregate produces concrete with low workability and high strength.
Consider the following statements with reference to grinding wheel characteristics: 1. Aluminium oxide and silicon carbide are used for making the grinding wheels. 2. Rubber bonds are used for making flexible wheels 3. The grade of a wheel is determined by the strength of the bonding materials 4. Negative rake angles are used for grinding of high-strength materials Which of the above statements are correct?
Consider the following: The parallel fillet welded joint is designed for 1) tensile strength 2) compressive strength 3) bending strength 4) shear strength Which of the above is/are correct?
A construction firm has decided to use burnt clay bricks of class 20 and above (as per IS 1077 : 1992) for the construction of a residential complex. The table below gives the details of Samples with Id (S1, S2, S3, S4, and S5) taken from five different suppliers. The criteria to be adopted are the percentage of water absorption and average compressive strength of bricks corresponding to bricks of class 20 and above. Select the Id of the samples which can be recommended for use in brick wall construction. Id Water absorption (%) Average compressive strength (kN/m2) S1 18 17500 S2 20 21000 S3 12 20000 S4 10 14000 S5 15 27000
What is the approximate ratio of 7 days compressive strength to 28 days compressive strength of cement concrete?
A clay specimen has an unconfined compressive strength of 240 Kn/m2 in a distributed state. On remolding, the unconfined compressive strength is 54 Kn/m2. What will be the sensitivity of clay?
The design compressive strength of concrete is ___________ times of characteristic compressive strength of concrete.
The uniaxial compressive strength of a limestone sample is 80 MPa. The sample is confined at a pressure of 20 MPa in a triaxial compressive strength test. Based on Hoek-Brown failure criteria the maximum principal stress at failure in MPa is
(Consider rock constants as m = 7.88, s = 1.0 and a = 0.5)