Q1. A key is subjected to side pressure as well at shearing forces. These pressures are called
(A)  bearing stresses
(B)  fatigue stresses
(C)  crushing stresses
(D)  yield stress

Q2. The value of shear stress which is induced in the shaft due to the applied couple varies
(A)  from maximum at the center to zero at the circumference
(B)  from zero at the center to maximum at the circumference
(C)  from maximum at the center to mini-mum at the circumference
(D) from maximum at the center to zero at the circumference

Q3. 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 up to which it resists torsion, shear and bending stresses
(D)  torque required to produce a twist of one radian per unit length of shaft

Q4. The safe twisting moment for a compound shaft is equal to the
(A)  maximum calculated value
(B)  minimum calculated value
(C)  mean value
(D) None of these

Q5. 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) double of the hoop stress

Q6. A cylindrical section having no joint is known as
(A)  joint less section
(B)  homogeneous section
(C)  manufactured section
(D)  seamless section

Q7. 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)  yield stress
(D) None of these

Q8. 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

Q9. 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

Q10. Rivets are made of following type of material
(A) tough
(B) hard
(C)  resilient
(D) None of these

Q11. 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)  single riveted single cover butt joint

Q12. If the rivets in adjacent rows are staggered and the outermost row has only one rivet, the arrangement of the rivets is called
(A)  chain riveting
(B)  zig zag riveting
(C)  diamond riveting
(D)  zig zag riveting

Q13. A riveted joint in which the number otrivets decrease from innermost to outer most row is called
(A)  chain riveted joint
(B)  diamond riveted joint
(C)  criss-cross riveted joint
(D)  zig zag riveting

Q14. A riveted joint in which every rivet of a row is opposite to other rivet of the outer row, is known as
(A)  chain riveted joint
(B)  diamond riveted joint
(C)  criss-cross riveted joint
(D)  zig zag riveting

Q15. When two plates are butt together and riveted with cover plates with two rows of rivets, the joint is known as
(A)  lap point
(B)  butt joint
(C)  single riveted single cover butt joint
(D) None of these

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