Mechanical Engineering
- 2401. What is limit state design?
- 2402. What is allowable stress design?
- 2403. Define factor of safety.
- 2404. What is thermal shock?
- 2405. What is stress relaxation?
- 2406. How does temperature affect material strength?
- 2407. What are thermal strains?
- 2408. How can residual stresses be relieved?
- 2409. What causes residual stresses?
- 2410. What are residual stresses?
- 2411. What is stress due to temperature change?
- 2412. What is temperature gradient?
- 2413. What are thermal stresses?
- 2414. What is fracture toughness?
- 2415. Define ductile fracture.
- 2416. Define brittle fracture.
- 2417. What is fracture?
- 2418. What is S–N curve?
- 2419. Define endurance limit.
- 2420. What are the stages of fatigue failure?
- 2421. Define fatigue.
- 2422. What are the stages of creep?
- 2423. Define creep.
- 2424. What is bursting pressure?
- 2425. What is shrink fit?
- 2426. What is compound cylinder?
- 2427. Define thick cylinder equation (Lame’s theorem).
- 2428. What is volumetric strain in thin cylinders?
- 2429. What is longitudinal stress?
- 2430. What is hoop stress?
- 2431. Derive hoop and longitudinal stresses in thin cylinder.
- 2432. Define thick cylinder.
- 2433. Define thin cylinder.
- 2434. What happens when load passes outside the core?
- 2435. What is eccentricity?
- 2436. Define resultant stress.
- 2437. What is middle third rule?
- 2438. What is core of a section?
- 2439. What is combined direct and bending stress?
- 2440. What is combined bending and torsion?
- 2441. What is bending stress due to eccentric load?
- 2442. What is eccentric loading?
- 2443. Define combined stress.
- 2444. What is Maxwell’s reciprocal theorem?
- 2445. What is complementary energy?
- 2446. Define Castigliano’s theorem.
- 2447. What is strain energy due to torsion?
- 2448. What is strain energy due to bending?
- 2449. What is strain energy due to shear?
- 2450. Define modulus of resilience.
- 2451. Define proof resilience.
- 2452. Define resilience.
- 2453. Define strain energy.
- 2454. What is safety factor in failure analysis ?
- 2455. What is yield criterion?
- 2456. Which theory is used for brittle materials?
- 2457. Which theory is most accurate for ductile materials?
- 2458. What is distortion energy theory (von Mises)?
- 2459. What is maximum shear stress theory (Tresca)?
- 2460. What is maximum strain theory (Saint-Venant)?
- 2461. What is maximum stress theory (Rankine’s)?
- 2462. List the different theories of failure.
- 2463. What is failure of material?
- 2464. Define maximum normal stress theory.
- 2465. Define maximum principal strain theory.
- 2466. Define distortion energy theory.
- 2467. Define maximum shear strain energy theory.
- 2468. What are major and minor principal stresses?
- 2469. What is Mohr’s circle?
- 2470. Derive expressions for principal stresses in 2D stress system.
- 2471. What is maximum shear stress?
- 2472. Define principal planes.
- 2473. Define principal stresses.
- 2474. What is equivalent length?
- 2475. Define end conditions of columns.
- 2476. What is effective length of a column?
- 2477. What is Rankine’s formula?
- 2478. What is crippling load?
- 2479. What are the assumptions in Euler’s theory?
- 2480. State Euler’s formula for buckling load.
- 2481. Define slenderness ratio.
- 2482. What is buckling?
- 2483. Define column and strut.
- 2484. What is permissible deflection according to standards?
- 2485. What is maximum deflection in a simply supported beam with point load?
- 2486. What are boundary conditions for deflection?
- 2487. What is conjugate beam method?
- 2488. What is Macaulay’s method?
- 2489. What is the moment area method?
- 2490. Define flexural rigidity (EI).
- 2491. What is slope of a beam?
- 2492. What are the causes of deflection in beams?
- 2493. Define deflection.
- 2494. What are the types of springs?
- 2495. What is a spring?
- 2496. What is shear stress distribution in a circular shaft?
- 2497. Define power transmitted by a shaft.
- 2498. What is the difference between solid and hollow shafts?
- 2499. Define torsional rigidity.
- 2500. What is angle of twist?