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- 1. Multiple Choice
P-4, Q-3,R-1,S-2
P-4,Q-3,R-2,S-1
P-2,Q-4,R-3,S-1
P-3,Q-4,R-2,S-1
- 2. Multiple Choice
The number of atoms per unit cell and the number of slip systems, respectively, for a face-centered cubic (FCC) crystal are
3, 3
3, 12
4, 12
4, 48
- 3. Multiple Choice
The crystal structure of aluminium is
(A) body-centred cubic
(B) face-centred cubic
(C) close-packed hexagonal
(D) body-centred tetragonal
- 4. Multiple Choice
The “Jominy test” is used to find
(A) Young’s modulus
(B) hardenability
(C) yield strength
(D) thermal conductivity
- 5. Multiple Choice
(A) P–III, Q–I, R–II, S–IV
(B) P–III, Q–II, R–I, S–IV
(C) P–IV, Q–II, R–I, S–III
(D) P–IV, Q–I, R–II, S–III
- 6. Multiple Choice
A force F is acting on a bent bar which is clamped at one end as shown in the figure.
The CORRECT free body diagram is
- 7. Multiple Choice
Which one of the following is used to convert a rotational motion into a translational motion?
(A) Bevel gears
(B) Double helical gears
(C) Worm gears
(D) Rack and pinion gears
- 8. Multiple Choice
Which of the bearings given below SHOULD NOT be subjected to a thrust load?
(A) Deep groove ball bearing
(B) Angular contact ball bearing
(C) Cylindrical (straight) roller bearing
(D) Single row tapered roller bearing
- 9. Multiple Choice
Which one of the following configurations has the highest fin effectiveness?
(A) Thin, closely spaced fins
(
B) Thin, widely spaced fins
(C) Thick, widely spaced fins
(
D) Thick, closely spaced fins
- 10. Multiple Choice
Which one of the following statements is correct for a superheated vapour?
(A) Its pressure is less than the saturation pressure at a given temperature.
(B) Its temperature is less than the saturation temperature at a given pressure.
(C) Its volume is less than the volume of the saturated vapour at a given temperature.
(D) Its enthalpy is less than the enthalpy of the saturated vapour at a given pressure.
- 11. Multiple Choice
The internal energy of an ideal gas is a function of
(A) temperature and pressure
(B) volume and pressure
(C) entropy and pressure
(D) temperature only
- 12. Multiple Choice
Which one of the following is NOT a rotating machine?
(A) Centrifugal pump
(B) Gear pump
(C) Jet pump
(D) Vane pump
- 13. Multiple Choice
The thermodynamic cycle shown in figure (T-s diagram) indicates
(A) reversed Carnot cycle
(B) reversed Brayton cycle
(C) vapor compression cycle
(D) vapor absorption cycle
- 14. Multiple Choice
Heat and work are
(A) intensive properties
(B) extensive properties
(C) point functions
(D) path functions
- 15. Multiple Choice
The spring constant of a helical compression spring DOES NOT depend on
(A) coil diameter
(B) material strength
(C) number of active turns
(D) wire diameter
- 16. Multiple Choice
Pre-tensioning of a bolted joint is used to
(A) strain harden the bolt head
(B) decrease stiffness of the bolted joint
(C) increase stiffness of the bolted joint
(D) prevent yielding of the thread root
- 17. Multiple Choice
The type of weld represented by the shaded region in the figure is
(A) groove
(B) spot
(C) fillet
(D) plug
- 18. Multiple Choice
Match the following products with the suitable manufacturing process
(A) P-4, Q-3, R-1, S-2
(B) P-2, Q-1, R-3, S-4
(
C) P-4, Q-1, R-2, S-3
(D) P-1, Q-3, R-4, S-2
- 19. Multiple Choice
The part of a gating system which regulates the rate of pouring of molten metal is
(A) pouring basin
(B) runner
(C) choke
(D) ingate
- 20. Multiple Choice
Interpolator in a CNC machine
(A) controls spindle speed
(B) coordinates axes movements
(C) operates tool changer
(D) commands canned cycle
- 21. Multiple Choice
Which one of the following instruments is widely used to check and calibrate geometric features of machine tools during their assembly?
(A) Ultrasonic probe
(B) Coordinate Measuring Machine (CMM)
(
C) Laser interferometer
(D) Vernier calipers
- 22. Multiple Choice
The material property which depends only on the basic crystal structure is
(A) fatigue strength
(B) work hardening
(C) fracture strength
(D) elastic constant
- 23. Multiple Choice
John Thomas, an __________________ writer, passed away in 2018.
(A) imminent
(B) prominent
(C) eminent
(D) dominant
- 24. Multiple Choice
Hardenability of steel is a measure of
(A) the ability to harden when it is cold worked
(B) the maximum hardness that can be obtained when it is austenitized and then quenched
(C) the depth to which required hardening is obtained when it is austenitized and then quenched
(D) the ability to retain its hardness when it is heated to elevated temperatures
- 25. Multiple Choice
Which of the following engineering materials is the most suitable candidate for hot chamber die casting?
(A) low carbon steel
(B) titanium
(C) copper
(D) tin
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