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The quote Autumn is a second spring when every leaf is a flower is by-
ক George Herbert
খ William Shakepeare
গ George Orwell
ঘ Albert Camus
When a closely-coiled helical spring of mean diameter (D) is subjected to an axial load (W), the deflection of the spring ($$\delta $$) is given by (where d = Diameter of spring wire, n = No. of turns of the spring and C = Modulus of rigidity for the spring material)
ক $$\frac{{{\text{W}}{{\text{D}}^3}{\text{n}}}}{{{\text{C}}{{\text{d}}^4}}}$$
খ $$\frac{{2{\text{W}}{{\text{D}}^3}{\text{n}}}}{{{\text{C}}{{\text{d}}^4}}}$$
গ $$\frac{{4{\text{W}}{{\text{D}}^3}{\text{n}}}}{{{\text{C}}{{\text{d}}^4}}}$$
ঘ $$\frac{{8{\text{W}}{{\text{D}}^3}{\text{n}}}}{{{\text{C}}{{\text{d}}^4}}}$$
A closely coiled helical spring is acted upon by an axial force. The maximum shear stress developed in the spring is $$\tau $$. The half of the length of the spring if cut off and the remaining spring is acted upon by the same axial force. The maximum shear stress in the spring in new condition will be
ক $$\frac{\tau }{2}$$
খ $$\tau $$
গ $$2\tau $$
ঘ $$4\tau $$
In PHP, the difference between double quote and single quote is that variables . . . . in single quoted strings whereas they . . . . . in double quoted strings.
ক are not parsed, are parsed
খ are parsed, are not parsed
গ are class, are not class
ঘ are variables, are not variables
Two closely coiled helical springs 'A' and 'B' are equal in all respects but the number of turns of spring 'A' is half that of spring 'B'. The ratio of deflections in spring 'A' to spring 'B' is
ক $$\frac{1}{8}$$
খ $$\frac{1}{4}$$
গ $$\frac{1}{2}$$
ঘ 2
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)
ক $$\frac{{{\text{WD}}}}{{\pi {{\text{d}}^3}}} \times {\text{K}}$$
খ $$\frac{{2{\text{WD}}}}{{\pi {{\text{d}}^3}}} \times {\text{K}}$$
গ $$\frac{{4{\text{WD}}}}{{\pi {{\text{d}}^3}}} \times {\text{K}}$$
ঘ $$\frac{{8{\text{WD}}}}{{\pi {{\text{d}}^3}}} \times {\text{K}}$$
Two closely-coiled helical springs 'A' and 'B' are equal in all respects but the number of turns of spring 'A' is double that of spring 'B'. The stiffness of spring 'A' will be __________ that of spring 'B'.
ক One-sixteenth
খ One-eighth
গ One-fourth
ঘ One-half
Two closely coiled helical springs 'A' and 'B' are equal in all respects but the diameter of wire of spring 'A' is double that of spring 'B' The stiffness of spring 'B' will be __________ that of spring 'A'
ক One-sixteenth
খ One-eighth
গ One-fourth
ঘ One-half
Two closely-coiled helical springs 'A' and 'B' of the same material, same number of turns and made from same wire are subjected to an axial load W. The mean diameter of spring 'A' is double the mean diameter of spring 'B'. The ratio of deflections in spring 'B' to spring 'A' will be
ক $$\frac{1}{8}$$
খ $$\frac{1}{4}$$
গ 2
ঘ 4
A circular flower bed has diameter 4m. The flower bed is increased so that the diameter is now 12m. How many times larger is the new flower bed?
ক 9
খ 3
গ 32
ঘ 8

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