The shear plane in case of bolts should

(a) be across threaded portion of shank

(b) be parallel to axis of bolt

(c) be normal to threaded portion of shank

(d) never be across the threaded portion

(e) none of the above.

1 Answer

Answer :

(d) never be across the threaded portion

Related questions

Description : The shock absorbing capacity of bolts can be increased by a) Increasing the shank diameter b) Decreasing the length of shank portion of bolt c) Increase the shank diameter and decreasing the length of shank d) None of the listed

Last Answer : d) None of the listed

Description : Shank is the portion of bolt between the head and the thread. a) True b) False

Last Answer : a) True

Description : When a nut is tightened by placing a washer below it, the shank of bolt is subjected to (A) Direct shear stress (B) Torsional shear stress (C) Tensile stress (D) Compressive stress

Last Answer : (C) Tensile stress

Description : The shock absorbing capacity of bolt can be increased by making the shank diameter ________ the root diameter. a) Lesser than b) Equal to c) Greater than d) No effect

Last Answer : b) Equal to

Description : If a fastener is threaded into a tapped hole, then the fastener is likely to be called as a) Screw b) Bolt c) Washer d) Screw or bolt

Last Answer : a) Screw

Description : Which type of screw fasteners are threaded through out its length? a. Cap screws b. Set screws c. Studs d. Tap bolt

Last Answer : b. Set screws

Description : The shock absorbing capacity of a bolt can be increased by (A) Increasing shank diameter (B) Making shank diameter equal to core diameter of threads (C) Using castle nut in place of ordinary hexagonal nut (D) Using a washer

Last Answer : (B) Making shank diameter equal to core diameter of threads

Description : The shock absorbing capacity of a bolt can be increased by (A) Increasing stress in shank (B) Increasing stress in core diameter of threads (C) Decreasing stress in shank (D) Decreasing stress in core diameter of threads

Last Answer : (A) Increasing stress in shank

Description : Which of the following is not a function of washer? a) Distributes load over a large area of clamped parts b) Provides bearing surface over large clearance bolts c) Prevents marring of the bolt head and nut surface d) Helps in locking of the fastener

Last Answer : d) Helps in locking of the fastener

Description : The connecting rod bolts are tightened up with the initial tension greater than external load so that (A) Failure of bolt will be static (B) The resultant load on bolt will not be affected by ... ) The bolt will not fail by fatigue although the external load is fluctuating (D) All the three

Last Answer : (D) All the three

Description : If 8 bolts are emplaced in a clamp coupling with shaft diameter 80mm d, calculate the diameter of each bolt if coefficient of friction is 0.3 and torque transmitted is 4000N-m. Permissible tensile stress is 80N/mm2. a) 27mm b) 25mm c) 23mm d) 21mm

Last Answer : a) 27mm

Description : If 8 bolts are emplaced in a clamp coupling with shaft diameter 80mm d, calculate the tensile force on each bolt if coefficient of friction is 0.3 and torque transmitted is 4000N-m. a) 51234.4N b) 45968.3N c) 41666.7N d) None of the listed

Last Answer : c) 41666.7N

Description : When a nut is tightened by placing a washer below it, the threads of bolt are subjected to (A) Direct shear stress (B) Torsional shear stress (C) Tensile stress (D) Compressive stress

Last Answer : (A) Direct shear stress

Description : When the shear strength of nut is equal to the tensile strength of bolt, the height of nut (h) should be (A) h = 0.5 dc (B) h = 0.25 dc (C) h = 0.75 dc (D) h = dc

Last Answer : (A) h = 0.5 dc

Description : When the shear strength of nut is half the tensile strength of bolt, the height of nut (h) should be (A) h = 0.5 dc (B) h = 0.25 dc (C) h = 0.75 dc (D) h = dc

Last Answer : (B) h = 0.25 dc

Description : Parallel fillet weld and transverse fillet weld both have the plane in which maximum shear stress occurs at 45’ to the leg dimension. a) True b) False

Last Answer : b) False

Description : For a parallel load on a fillet weld of equal legs, the plane of maximum shear occurs at (a) 22.5° (b) 30° (c) 45° (d) 60°

Last Answer : (c) 45°

Description : In Mohr’s circle of strain, y-axis represents a. Shear strain b. Half of shear strain c. Normal strain d. Half of normal strain

Last Answer : b. Half of shear strain

Description : Angle of obliquity is defined as a. Angle between the plane on which stresses are evaluated and one of the given planes b. Angle between resultant stress and the plane of given normal stress c. Angle between resultant stress and shear stress d. Angle between resultant stress and normal stress

Last Answer : d. Angle between resultant stress and normal stress

Description : Does a plane of maximum shear stress contain a? (a) Normal stress (b) Bending stress (c) Torsional shear stress (d) None

Last Answer : (a) Normal stress

Description : A principal plane is a plane of (a) Only normal stress (b) Only shear stress (c) Only bending stress (d) None

Last Answer : (a) Only normal stress

Description : Principal stress is the magnitude of ________ stress acting on the principal plane. a. Normal stress b. Shear stress c. Both a. and b. d. None of the above

Last Answer : a. Normal stress

Description : In cold riveting like hot riveting shank is subjected to majorly tensile stress. a) True b) False

Last Answer : b) False

Description : If the length of the shank is doubled, then strain energy absorbed by shank a) Doubles b) Remains same c) Increases 4 time d) Become half

Last Answer : a) Doubles

Description : Which type of joints is better when the product is subjected to large vibrations: welded or threaded? a) Welded b) Threaded c) Both have same results d) Depends on the magnitude of the vibrational force

Last Answer : a) Welded

Description : Threaded joints are non-separable joints. a) True b) False

Last Answer : b) False

Description : Maximum efficiency of a square threaded is given by a) 1-sinǾ/1+sinǾ b) 1+sinǾ/1-sinǾ c) 1-2sinǾ/1+2sinǾ d) 1+2sinǾ/1-2sinǾ

Last Answer : a) 1-sinǾ/1+sinǾ

Description : The maximum efficiency of a square threaded screw is (A) (1 - sinφ)/ (1 + sinφ) (B) (1 + sinφ)/ (1 - sinφ)s (C) (1 - sinφ)/ (1 + cosφ) (D) (1 + cosφ)/ (1 - sinφ)

Last Answer : (A) (1 - sinφ)/ (1 + sinφ)

Description : A mode where the entire magnetic field is in the transverse plane and has no portion parallel to the length axis.

Last Answer : TM mode

Description : Which of the following fastening devices has its both ends threaded? (A) Bolt (B) Stud (C) Set screw (D) Split nut

Last Answer : (B) Stud

Description : Resilience of a bolt can be increased by increasing its (A) Length (B) Shank diameter (C) Head diameter (D) None of these

Last Answer : (A) Length

Description : The graphical method of Mohr's circle represents shear stress (τ) on ______ a. X-axis b. Y-axis c. Z-axis d. None of the above

Last Answer : b. Y-axis

Description : Which of the following formulae is used to calculate tangential stress, when a member is subjected to stress in mutually perpendicular axis and accompanied by a shear stress? a. [(σ x - σ y )/2 ]sin θ - τ cos 2θ b. [(σ x - ... τ cos 2θ c. [(σ x - σ y )/2 ]sin θ - τ 2 cos θ d. None of the above

Last Answer : c. [(σ x – σ y )/2 ]sin θ – τ 2 cos θ

Description : A force 2P is acting on the double transverse fillet weld. Leg of weld is h and length l. Determine the shear stress in a plane inclined at θ with horizontal. a) PSinθ(Sinθ+Cosθ)/hl b) P(Sinθ+Cosθ)/hl c) Pcosθ(Sinθ+Cosθ)/hl d) None of the listed

Last Answer : a) PSinθ(Sinθ+Cosθ)/hl

Description : A force 2P is acting on the double transverse fillet weld. Leg of weld is h and length l. Determine the shear stress in a plane inclined at θ with horizontal. a) PSinθ(Sinθ+Cosθ)/hl b) P(Sinθ+Cosθ)/hl c) Pcosθ(Sinθ+Cosθ)/hl d) None of the listed

Last Answer : a) PSinθ(Sinθ+Cosθ)/hl

Description : Ellipse of stress is used to find a. Resultant stress on any plane in a bi-axial stress system b. Resultant stress on any plane in a general two dimensional system c. Maximum shear stress d. Location of planes of maximum shear stress

Last Answer : a. Resultant stress on any plane in a bi-axial stress system

Description : The angle between a principal plane and a plane of maximum shear is a. 15 0 b. 45 0 c. 75 0 d. None

Last Answer : b. 45 0

Description : The angle between a principal plane and a plane of maximum shear is a. 30 0 b. 60 0 c. 90 0 d. None

Last Answer : d. None

Description : A principal plane is a plane of (a) Zero tensile stress (b) Zero compressive stress (c) Zero shear stress (d) None

Last Answer : (c) Zero shear stress

Description : Minor principal stress has minimum ________ a. value of shear stress acting on the plane b. intensity of direct stress c. both a. and b. d. none of the above

Last Answer : b. intensity of direct stress

Description : What is the value of shear stress acting on a plane of circular bar which is subjected to axial tensile load of 100 kN? (Diamet a. 58.73 Mpa b. 40.23 Mpa c. 39.60 Mpa d. Insufficient data

Last Answer : c. 39.60 Mpa

Description : Parallel fillet welds are under (i) Shear stress (ii)Compressive stress (iii)Tensile stress (iv)None

Last Answer : (i) Shear stress

Description : Parallel fillet welds are under  Shear and bending stresses  Compressive and torsion shear stresses  Tensile and compressive stresses  None

Last Answer :  None

Description : The parallel fillet welded joint is designed for (a) tensile strength (b) compressive strength (c) bending strength (d) shear strength

Last Answer : (d) shear strength

Description : Complementary shear stress is a. Parallel to applied stress b. Perpendicular to the applied shear stress c. Inclined to the applied shear stress d. None

Last Answer : b. Perpendicular to the applied shear stress

Description : While designing a forging, the profile is selected such that the fibrous lines are parallel to the tensile forces and perpendicular to shear forces. a) True b) False

Last Answer : a) True

Description : Which of the following statements are true about eccentrically loaded circular base? a) All bolts are symmetrically spaced with equal angle on either side of vertical b) Bolts are not preloaded c) Bearing is rigid d) Dowel pins are used to relieve stresses

Last Answer : a) All bolts are symmetrically spaced with equal angle on either side of vertical

Description : Which of the following are good for parts that are seldom dismantled. a) Through Bolts b) Tap Bolts c) Studs d) Cannot be stated

Last Answer : b) Tap Bolts

Description : If there is no place to accommodate the nut, then one would choose the a) Through Bolts b) Tap Bolts c) Studs d) None of the mentioned

Last Answer : b) Tap Bolts

Description : The connecting rod bolts are tightened up so that the initial tightening stress (A) Approaches yield point (B) Approaches endurance limit (C) Approaches (yield point stress/factor of safety) (D) Approaches (endurance limit stress/factor of safety)

Last Answer : (A) Approaches yield point