In a ______________ riveted joint, rivets across different rows align directly opposite one another?
Show answer Hide answer
Answer: B. Chain
Explanation
Chain riveted joints are characterized by adjacent rows aligning directly opposite each other. This parallel alignment creates straight lines of fasteners running perpendicular to the joint axis. The direct alignment distinguishes chain configurations from staggered or diamond patterns. Riveting remains a historical metal joining technique used before advanced welding technologies emerged. Plate geometry and tensile forces dictate whether a chain or zig-zag pattern is chosen. Alignment accuracy ensures uniform load sharing among the parallel rows of fasteners.
Boiler shells and pressure vessels historically utilized chain riveting for longitudinal seams. Manufacturing specifications require precise hole drilling to maintain straight rows during assembly. Understanding joint types helps engineers evaluate the structural integrity of legacy industrial equipment. Option A features staggered rivet rows that do not align directly opposite each other. Option C involves rivet counts that decrease progressively from the innermost row outward. Option D is incorrect because chain joints clearly match the described alignment characteristic.
- Subject
- Engineering
- Category
- Chemical Engineering
- Topic
- —
- Difficulty
- medium
Related questions
Q1. Hoop stress generated within a thin-walled ‘Horton Sphere’ storing pressurized liquid ammonia is____________________?
Show answer Hide answer
Answer: A. pD/2T
Thin-walled spherical vessels distribute internal pressure equally along both principal geometric directions. The circumferential hoop stress formula for spheres accounts for balanced radial force distribution. Standard...
Q2. If shell inside diameter is ‘D’, baffle spacing in a shell-and-tube heat exchanger usually ranges within__________________?
Show answer Hide answer
Answer: B. D/5 or minimum 2″ to 5D
Baffle spacing in shell-and-tube exchangers must be constrained to maintain proper cross-flow velocity without excessive pressure drop. Industrial standards dictate that baffles should not be spaced closer than one-fifth...
Q3. In a _____________ riveted joint, rivet counts decrease from the innermost row outward?
Show answer Hide answer
Answer: B. Diamond
Diamond riveted joints feature a distinctive geometric layout where rivet counts taper near the edges. Reducing the number of rivets toward the outer rows optimizes load distribution across structural plates. This progre...
Q4. Bubble caps in distillation columns are positioned on trays with a pitch of ______________ times cap outer diameter?
Show answer Hide answer
Answer: A. 1.3 to 2
Distillation column design requires specific spacing between bubble caps to ensure proper vapor distribution. A pitch ranging from 1.3 to 2 times the outer diameter prevents vapor jet interference. This spacing ratio opt...
Q5. Pressure drop across a bag filter increases in direct proportion to___________________?
Show answer Hide answer
Answer: B. Density of the gas and inversely as viscosity of the gas
Filtration pressure drop across bag filters varies directly with gas density according to established aerodynamic principles. Higher gas viscosity helps smooth flow profiles through filter media, causing pressure drop to...
Q6. Minimum clearance between the overflow weir and the final bubble cap row in a distillation column is ______________ cm?
Show answer Hide answer
Answer: B. 7.5
Maintaining adequate clearance near the weir prevents liquid accumulation from blocking bubble caps. A minimum distance of 7.5 cm ensures smooth liquid flow toward the outlet downcomer. This specific design rule avoids t...