Discussion
Home ‣ Mechanical Engineering ‣ Heat Transfer, Refrigeration and Air Conditioning See What Others Are Saying!
- Question
Sulphur dioxide is extremely toxic and non-flammable.
Options- A. True
- B. False
- Correct Answer
- True
- 1. The formula for Iso-octane is
Options- A. C8H18
- B. C7H17
- C. C6H18
- D. C7H18 Discuss
- 2. The gear shift lever requires two separate motions to shift gears, and the first movement
Options- A. moves the synchronizer
- B. selects the synchronizer
- C. meshes the gears
- D. operates the clutch Discuss
- 3. In natural uranium, the constituents of three naturally occuring isotopes are
Options- A. U234 = 0.006%, U235 = 0.712% and U238 = 99.282%
- B. U234 = 0.712%, U235 = 0.006% and U238 = 99.282%
- C. U234 = 99.282%, U235 = 0.006% and U238 = 0.712%
- D. U234 = 0.006%, U235 = 99.282% and U238 = 0.712% Discuss
- 4. Discharge (Q) of a centrifugal pump is given by (where D = Diameter of impeller at inlet, b = Width of impeller at inlet, and Vf = Velocity of flow at inlet)
Options- A. Q = ?.D.Vf
- B. Q = ?.b.Vf
- C. Q = ?.D.b.Vf
- D. Q = D.b.Vf Discuss
- 5. The temperature of air recorded by a thermometer, when its bulb is surrounded by a wet cloth exposed to the air, is called
Options- A. wet bulb temperature
- B. dry bulb temperature
- C. dew point temperature
- D. none of these Discuss
- 6. A steel with 0.8% carbon and 100% pearlite is called
Options- A. eutectoid steel
- B. hypo-eutectoid steel
- C. hyper-eutectoid steel
- D. none of these Discuss
- 7. During suction stroke, the inside pressure of cylinder is
Options- A. more than the atmospheric pressure
- B. less than the atmospheric pressure
- C. equal to the atmospheric pressure
- D. none of these Discuss
- 8. The cutting speed of a drill depends upon the
Options- A. material of drill
- B. type of material to be drilled
- C. quality of surface finish desired
- D. all of these Discuss
- 9. When a steel containing __________ 0.8% carbon is cooled slowly below the lower critical point, it consists of ferrite and pearlite.
Options- A. equal to
- B. less than
- C. more than Discuss
- 10. If three forces acting at a point are represented in magnitude and direction by the three sides of a triangle, taken in order, then the forces are in equilibrium.
Options- A. Yes
- B. No Discuss
More questions
Correct Answer: C8H18
Correct Answer: selects the synchronizer
Correct Answer: U234 = 0.006%, U235 = 0.712% and U238 = 99.282%
Correct Answer: Q = ?.D.b.Vf
Correct Answer: wet bulb temperature
Correct Answer: eutectoid steel
Correct Answer: less than the atmospheric pressure
Correct Answer: all of these
Correct Answer: less than
Correct Answer: Yes
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