# 79 the modulus of rigidity of a steel member is a a

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79.The modulus of rigidity of a steel member is:a.A function of the length and depthb.Defined as the unit shear stress divided by the unitshear deformationc.Equal to the modulus of elasticity divided by oneplus Poisson’s ratiod.Defined as the length divided by the moment ofinertia80.Short shaft81.The relationship between the extension of a spring andthe force required to produce the extension is:82.Defined as an undesirable sound83.Soil bearing pressure as used in foundation has anaverage safe load ofa.12,225 kg/m2b.10,450 kg/m2c.15,222 kg/m284.The process of producing a variety of surfaces by using acircular type cutter with multiple teeth.85.The area of the shear diagram of a beam between anytwo points on the beam is equal to the86.To prevent pulling of the bolts when nuts are tightenedthe length embedded in concrete should be equal to atleast:a.20 times bolt diameterb.30 times bolt diameterc.50 times bolt diameterd.80 times bolt diameter87.For workrooms (maintenance shop and machine room)shall at least have a height from floor to ceiling of:88.The square head of a combination set is used for makingor checking the angles:89.Hardened steel parts have:90.Which is the lightest metal?a.Leadb.GI sheetc.Aluminiumd.Cast iron91.Which micrometer is available with extension rods:92.Which gauge is used to check the internal threads:93.Concentricity of an outside diameter can be checked by:
d.Tube micrometer94.Which of the following do not belong to the group?a.TIGb.MIGc.Hardeningd.Soldering95.The slenderness ratio of a column is generally defined as
the ratio of its96.The moment ata section of beam is derived from the
97.The effect of setting a lathe tool a small amount below
the center of the work is to98.A combination of resistant bodies so arranged that the
motion of one compels the motion of the others.a.Gearsb.Camsc.Mechanismd.Machine99.Which of the following is not a method of non-
destructive testing of steel castings and forgings?100.A body rotating or oscillating about an axis
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Tensile strength, c