71. Diamond riveted joint can be adopted in the case of following type of joint
(a) butt joint
(b) lap joint
(c) double riveted lap joints
(d) all types of joints
(e) none of the above.
Ans: a
72. Rivets are made of following type of material
(a) tough
(b) hard
(c) resilient
(d) ductile
(e) malleable.
Ans: d
73. The weakest section of a diamond riveting is the section which passes through
(a) the first row
(b) the second row
(c) the central row
(d) one rivet hole of the end row
(e) none of the above.
Ans: d
74. The deformation of a bar under its own weight compared to the deformation of same body subjected to a direct load equal to weight of the body is
(a) same
(b) double
(c) half
(d) four times
(e) one-fourth.
Ans: c
75. The force acting along the circumference will cause stress in the walls in a direction normal to the longitudinal axis of cylinder; this stress is called
(a) longitudinal stress
(b) hoop stress
(c) yeiled stress
(d) ultimate stress
(e) none of the above.
Ans: b
76. A boiler shell 200 cm diameter and plate thickness 1.5 cm is subjected to internal pressure of 1.5 MN/m , then the hoop stress will be
(a) 30 MN/m2
(b) 50 MN/m2
(c) 100 MN/m2
(d) 200 MN/m2
(e) 300 MN/m2.
Ans: c
77. A cylindrical section having no joint is known as
(a) joint less section
(b) homogeneous section
(c) perfect section
(d) manufactured section
(e) seamless section.
Ans: e
78. Longitudinal stress in a thin cylinder is
(a) equal to the hoop stress
(b) twice the hoop stress
(c) half of the hoop stress
(d) one-fourth of hoop stress
(e) four times the hoop stress.
Ans: c
79. The safe twisting moment for a compound shaft is equal to the
(a) maximum calculated value
(b) minimum calculated value
(c) mean value
(d) extreme value
(e) none of the above.
Ans: b
80. The torsional rigidity of a shaft is expressed by the
(a) maximum torque it can transmit
(b) number of cycles it undergoes before failure
(c) elastic limit upto which it resists torsion, shear and bending stresses
(d) torque required to produce a twist of one radian per unit length of shaft
(e) maximum power it can transmit at highest possible-speed.
Ans: d
Read More Questions:
Strength of Materials - Mechanical Engineering MCQs Part1
Strength of Materials - Mechanical Engineering MCQs Part2
(a) butt joint
(b) lap joint
(c) double riveted lap joints
(d) all types of joints
(e) none of the above.
Ans: a
72. Rivets are made of following type of material
(a) tough
(b) hard
(c) resilient
(d) ductile
(e) malleable.
Ans: d
73. The weakest section of a diamond riveting is the section which passes through
(a) the first row
(b) the second row
(c) the central row
(d) one rivet hole of the end row
(e) none of the above.
Ans: d
74. The deformation of a bar under its own weight compared to the deformation of same body subjected to a direct load equal to weight of the body is
(a) same
(b) double
(c) half
(d) four times
(e) one-fourth.
Ans: c
75. The force acting along the circumference will cause stress in the walls in a direction normal to the longitudinal axis of cylinder; this stress is called
(a) longitudinal stress
(b) hoop stress
(c) yeiled stress
(d) ultimate stress
(e) none of the above.
Ans: b
76. A boiler shell 200 cm diameter and plate thickness 1.5 cm is subjected to internal pressure of 1.5 MN/m , then the hoop stress will be
(a) 30 MN/m2
(b) 50 MN/m2
(c) 100 MN/m2
(d) 200 MN/m2
(e) 300 MN/m2.
Ans: c
77. A cylindrical section having no joint is known as
(a) joint less section
(b) homogeneous section
(c) perfect section
(d) manufactured section
(e) seamless section.
Ans: e
78. Longitudinal stress in a thin cylinder is
(a) equal to the hoop stress
(b) twice the hoop stress
(c) half of the hoop stress
(d) one-fourth of hoop stress
(e) four times the hoop stress.
Ans: c
79. The safe twisting moment for a compound shaft is equal to the
(a) maximum calculated value
(b) minimum calculated value
(c) mean value
(d) extreme value
(e) none of the above.
Ans: b
80. The torsional rigidity of a shaft is expressed by the
(a) maximum torque it can transmit
(b) number of cycles it undergoes before failure
(c) elastic limit upto which it resists torsion, shear and bending stresses
(d) torque required to produce a twist of one radian per unit length of shaft
(e) maximum power it can transmit at highest possible-speed.
Ans: d
Read More Questions:
Strength of Materials - Mechanical Engineering MCQs Part1
Strength of Materials - Mechanical Engineering MCQs Part2
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