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

79. The modulus of rigidity of a steel member is:
a. A function of the length and depth
b. Defined as the unit shear stress divided by the unit
shear deformation
c. Equal to the modulus of elasticity divided by one
plus Poisson’s ratio
d. Defined as the length divided by the moment of
inertia
80. Short shaft
81. The relationship between the extension of a spring and
the force required to produce the extension is:
82. Defined as an undesirable sound
83. Soil bearing pressure as used in foundation has an
average safe load of
a. 12,225 kg/m
2
b. 10,450 kg/m
2
c. 15,222 kg/m
2
84. The process of producing a variety of surfaces by using a
circular type cutter with multiple teeth.
85. The area of the shear diagram of a beam between any
two points on the beam is equal to the
86. To prevent pulling of the bolts when nuts are tightened
the length embedded in concrete should be equal to at
least:
a. 20 times bolt diameter
b. 30 times bolt diameter
c. 50 times bolt diameter
d. 80 times bolt diameter
87. 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 making
or checking the angles:
89. Hardened steel parts have:
90. Which is the lightest metal?
a. Lead
b. GI sheet
c. Aluminium
d. Cast iron
91. 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 micrometer
94. Which of the following do not belong to the group?
a. TIG
b. MIG
c. Hardening
d. Soldering
95. The slenderness ratio of a column is generally defined as
the ratio of its
96. The moment at a 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 to
98. A combination of resistant bodies so arranged that the
motion of one compels the motion of the others.
a. Gears
b. Cams
c. Mechanism
d. Machine
99. 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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