Description : A single transverse weld is preferred over double transverse fillet weld. a) True b) False
Last Answer : b) False
Description : Transverse fillet weld can be designed using the same equations as of parallel fillet weld. a) True b) False
Description : Testing the ultimate strength of the weld falls in nondestructive examination. a) True b) False
Description : Strength of parallel fillet weld is greater than strength of transverse fillet weld. a) True b) False
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
Description : A fillet weld is an approximately triangular cross section joining two surfaces lying parallels to each other. a) True b) False
Description : The normal stress is perpendicular to the area under considerations, while the shear stress acts over the area. a) True b) False
Last Answer : a) True
Description : Partial bearing is preferred over journal bearing. a) True b) No c) More friction losses d) Can’t be determined
Description : In nut and bolt fastener, nut is generally held stationary while bolt is rotated. a) True b) False
Description : Plug weld is a. Rectangular b. Square c. Triangular d. None
Last Answer : d. None
Description : Fillet weld is a a. Square b. Rectangular c. Triangular d. None
Last Answer : c. Triangular
Description : The angle of a fillet weld is a. 20 0 b. 40 0 c. 45 0 d. None
Last Answer : c. 45 0
Description : Length of throat of a fillet weld is a. 0.505 x leg b. 0.707x leg c. 0.909x leg d. None
Last Answer : b. 0.707x leg
Description : Area under tension in a single transverse fillet lap weld is (i)0.707 tl (ii) 0.807 tl (iii) 400 tl (iv)None
Last Answer : (i)0.707 tl
Description : Quantity is not a part of the weld symbol (i)Dark circle (ii) Open circle (iii) Angle of weld (iv)Starting and stopping allowance for welding
Last Answer : (iv)Starting and stopping allowance for welding
Description : Term which is not a part of the weld symbol (i) Tail (ii) Arrow (iii) Temperature of welding (iv) None
Last Answer : (iii) Temperature of welding
Description : Quantity which is not a part of the weld symbol (i)Length of welding (ii) Weld is made in the welding shop (iii) Welding is on both sides (iv) Machine used in welding
Last Answer : (iv) Machine used in welding
Description : Different parts of a weld symbol are (i) Arrow, center line and back part (ii) Arrow, body line and length (iii) Arrow, body line and tail (iv)None
Last Answer : (iii) Arrow, body line and tail
Description : A weld symbol is necessary because of (i) Aesthetic sense (ii) Finishing (iii) Manufacturing (iv) None
Last Answer : (iii) Manufacturing
Description : If a circular shaft is welded to the plate by means of circumferential fillet, then the shaft is subjected to torsional moment M. If throat of weld is t, then torsional shear stress is given by a) M/2πtr2 b) M/πtr2 c) M/4πtr2 d) None of the listed
Last Answer : a) M/2πtr2
Description : Find the bending stress in the top weld is if thickness of weld is t. Given P=15kN and e=120mm. a) 230/t b) 360/t c) 200/t d) None of the listed
Last Answer : b) 360/t
Description : If length of weld is l and leg h, then area of throat can be given by a) 0.707 hl b) 1.414hl c) hl d) None of the listed
Last Answer : a) 0.707 hl
Description : Relation between throat and leg for a parallel fillet weld is a) t =h Cos (45’) b) h =t Cos (45’) c) h= t d) None of the listed
Last Answer : a) t =h Cos (45’)
Description : The length of each of the two equal sides of a parallel fillet weld is called a) Leg b) Throat c) Arm d) None of the listed
Last Answer : a) Leg
Description : If force act in a direction parallel to the direction of weld, then fillet weld is called as? a) Transverse b) Longitudinal c) Parallel d) Longitudinal or Parallel
Last Answer : d) Longitudinal or Parallel
Description : Hard peening is a) Hammering the weld across the length while the joint is hot b) Hammering the weld along the length while the joint is hot c) Hammering the weld along the length while the joint is cold d) Hammering the weld across the length while the joint is cold
Last Answer : b) Hammering the weld along the length while the joint is hot
Description : A backing ring is used inside the pipe joint when making a (a) butt weld (b) fillet weld (c) sleeve weld (d) socket weld (e) tube weld.
Last Answer : (a) butt weld
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 : The size of the weld in butt welded joint is equal to (a) 0.5 × Throat of weld (b) Throat of weld (c) 2 × Throat of weld (d) 2 × Throat of weld
Last Answer : (b) Throat of weld
Description : In transverse fillet welded joint, the size of weld is equal to (a) 0.5 × Throat of weld (b) Throat of weld (c) 2 × Throat of weld (d) 2 × Throat of weld
Last Answer : (c) 2 × Throat of weld
Description : Maximum shear stress in transverse fillet weld of leg h and length l is a) P/hl b) 1.21P/hl c) P/1.21hl d) None of the listed
Last Answer : b) 1.21P/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 : Why should convex weld faces be avoided?
Last Answer : What is the answer ?
Description : When comes down to stress reduction, which one is preferred? a) Solid flywheel b) Split flywheel c) Both have equal stresses d) Cannot be determined
Last Answer : b) Split flywheel
Description : Which of the following bearing is preferred for oscillating conditions? (a) Double row roller bearing (b) Taper roller bearing (c) Needle roller bearing (d) Angular contact single row ball bearing
Last Answer : (c) Needle roller bearing
Description : If we exclude the cost factor, which bearing is preferred? a) Hydrostatic b) Hydrodynamic c) Both are equally preferred d) Cannot be determined
Last Answer : a) Hydrostatic
Description : Keyed joints never lead to stress concentration on shafts. a) True b) False
Description : Feather key can be used to prevent axial motion between two elements. a) True b) False
Description : The operation of flywheel is continuous. a) True b) False
Description : Flywheel and governor can be interchanged. a) True b) False
Description : Flywheels are used in punching and shear operation. a) True b) False
Description : Is use of a flywheel recommended when a large motor is required only for a small instant of time? a) True b) False
Description : The dynamic load-carrying capacity of a bearing is defined as the radial load in radial bearings that can be carried for a minimum life of 1000 revolutions. (a) True (b) False
Last Answer : (b) False
Description : For the majority of bearings, actual life is considerably greater than rated life. (a) True (b) False
Last Answer : (a) True
Description : The life of an individual ball bearing is the time period for which it works without any signs of failures. (a) True (b) False
Description : Stribeck equation gives the dynamic load capacity of the bearing. (a) True (b) False
Description : A total permanent deformation of 0.0001 of the ball diameter is taken for considering the static load capacity of the sh (a) True (b) False