WorksheetsDAY 29 WORKSHEET LSGD Steel
Total questions: 15
Worksheet time: 10mins
Which of the following statements regarding HSFG bolts is INCORRECT?
Slip is eliminated due to frictional resistance between plates
Load is transferred mainly through bolt shear
They are pre-tensioned up to proof load to prevent loosening
IS 4000 : 1992 specifies their use for structural connections
In a double-lap bolted joint, the number of shear planes is —
One
Two
Three
Depends on bolt grade
The critical failure that combines both shear and tension in bolted plates is known as —
Tearing of plate
Bearing failure
Block shear failure
Crushing failure
In fillet welds, the throat thickness equals —
0.5 × leg size
0.707 × leg size
0.866 × leg size
0.5 × throat area
Which type of weld is made by filling a drilled hole on one plate with filler material?
Slot weld
Plug weld
Fillet weld
Groove weld
TRUE OR FALSE
In a butt weld, strength is governed by the thickness of the thicker plate (a)
TRUE OR FALSE
Ordinary black bolts (C-grade) can safely be used in vibrating machine structures (a)
Assertion (A): High-strength friction-grip (HSFG) bolts are called “non-slip connections.”
Reason (R): They develop frictional resistance by inducing large clamping forces in plates.
(a)
The maximum temperature in arc welding is approximately (a) °C.
In oxy-acetylene welding, the flame temperature can reach about (a) °F.
In a fillet weld, the safe load = throat thickness × length × (a) in weld.
Bolted joints usually fail in shear when the applied shear stress (a) the shear strength of the bolt.
The effective throat thickness for a full-penetration single-groove butt weld = (a) of the thickness of the thinner plate.
MATCH THE FOLLOWING
A. Black bolts (product grade C) → 1. Load transfer by friction between faying surfaces
B. HSFG bolts → 2. Manufactured to IS 1363 (hex bolts, product grade C)
C. Bearing-type bolts → 3. Load transfer by bolt shear and plate bearing
D. Turned/precision bolts → 4. Machined shank; used with close-tolerance holes
A–2, B–3, C–1, D–4
A–1, B–2, C–3, D–4
A–2, B–1, C–3, D–4
A–2, B–1, C–4, D–3
MATCH THE FOLLOWING – SET 2 (Types of Welds)
A. Fillet weld → 1. End-to-end plates joined with groove preparation
B. Butt (groove) weld → 2. Triangular cross-section at T/L joint
C. Plug weld → 3. Weld metal deposited in circular hole to join lapped plates
D. Edge weld → 4. Weld deposited along the edge of thin plates placed edgewise
A–2, B–1, C–4, D–3
A–1, B–2, C–3, D–4
A–2, B–1, C–3, D–4
A–2, B–3, C–1, D–4
