231.Young’s modulus is defined as the ratio of
(A) volumetric stress and volumetric strain
(B) lateral stress and lateral strain
(C) longitudinal stress and longitudinal strain
(D) shear stress to shear strain
Answer: - longitudinal stress and longitudinal strain
232.Poisson’s ratio is defined as the ratio of
(A) longitudinal stress and longitudinal strain
(B) longitudinal stress and lateral stress
(C) lateral strain and longitudinal strain
(D) lateral stress and lateral strain
Answer: - lateral strain and longitudinal strain
233. Pitch point on a cam is
(A) any point on pitch curve
(B) the point on cam pitch curve having the maximum pressure angle
(C) any point on pitch circle
(D) the point on cam pitch curve having the minimum pressure angle
Answer: - the point on cam pitch curve having the maximum pressure angle
234. A circular bar moving in a round hole is an example of
(A) incompletely constrained motion
(B) partially constrained motion
(C) completely constrained motion
(D) successfully constrained motion
Answer: - incompletely constrained motion
235. Maximum principal stress theory is applicable for
(A) ductile materials
(B) brittle materials
(C) elastic materials
(D) all of the above
Answer: - brittle materials
236. Dielectric is used in
(A) Electro chemical machining
(B) Ultrasonic machining
(C) Electro discharge machining
(D) Laser machining
Answer: - Electro discharge machining
237. The critical path of a network represents
(A) the minimum time required for completion of project
(B) the maximum time required for completion of project
(C) maximum cost required for completion of project
(D) minimum cost required for completion of project
Answer: - the minimum time required for completion of project
238.The radiations emitted by a hot furnace are
(A) ultra-violet
(B) infra-red
(C) X-rays
(D) micro waves
Answer: - infra-red
239. Thermal power plant works on
(A) Carnot cycle
(B) Joule cycle
(C) Rankine cycle
(D) Otto cycle
Answer: - Rankine cycle
240.For small discharge at high pressure, following pump is preferred
(A) centrifugal
(B) axial flow
(C) propeller
(D) reciprocating
Answer: - Reciprocating
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