Related Questions

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
If the length of a edge of cube X is thrice the length of an edge of cube Y, What is the ration of the volume of cube Y to the volume of cube X?
A 1/2
B 1/4
C 1/6
D 1/8
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
The compressive strength of cast iron is __________ that of its tensile strength.
A Equal to
B Less than
C More than
D None of these
The tensile strength of ductile materials is _________ its compressive strength.
A Equal to
B Less than
C Greater than
D None of these
Compressive strength of wood is usually more along the grains. The tenile strength of wood as compared to that of steel is about
A Half
B One third
C One fifth
D One twelfth
ভঙ্গুর পদার্থের compressive strength, tensile strength হতে -
A বেশি
B কম
C সমান
D দ্বিগুণ
When an open coiled helical compression spring is subjected to an axial compressive load, the maximum shear stress induced in the wire is (where D = Mean diameter of the spring coil, d = Diameter of the spring wire, K = Wahl's stress factor and W = Axial compressive load on the spring)
A $$\frac{{{\text{WD}}}}{{\pi {{\text{d}}^3}}} \times {\text{K}}$$
B $$\frac{{2{\text{WD}}}}{{\pi {{\text{d}}^3}}} \times {\text{K}}$$
C $$\frac{{4{\text{WD}}}}{{\pi {{\text{d}}^3}}} \times {\text{K}}$$
D $$\frac{{8{\text{WD}}}}{{\pi {{\text{d}}^3}}} \times {\text{K}}$$
The change in length due to a tensile or compressive force acting on a body is given by (where P = Tensile or compressive force acting on the body, $$l$$ = Original length of the body, A = Cross-sectional area of the body and E = Young's modulus for the material of the body)
A $$\frac{{{\text{P}}l{\text{A}}}}{{\text{E}}}$$
B $$\frac{{{\text{P}}l}}{{{\text{AE}}}}$$
C $$\frac{{\text{E}}}{{{\text{P}}l{\text{A}}}}$$
D $$\frac{{{\text{AE}}}}{{{\text{P}}l}}$$
__________ is the process used for setting up compressive stresses in the surface of a metal to improve its fatigue strength.
A Lancing
B Shot peening
C Slugging
D Spinning

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