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- Question
In order to avoid tearing off the plate at an edge, the distance from the centre of the rivet hole to the nearest edge of the plate (i.e. margin) should be (where d = Diameter of rivet hole in mm)
Options- A. d
- B. 1.5 d
- C. 2 d
- D. 2.5 d
- Correct Answer
- 1.5 d
- 1. The Parsons' reaction turbine has
Options- A. only moving blades
- B. only fixed blades
- C. identical fixed and moving blades
- D. fixed and moving blades of different shape Discuss
- 2. Galvanising is a
Options- A. zinc diffusion process
- B. process of coating zinc by hot dipping
- C. process used for making thin phosphate coating on steel
- D. none of the above Discuss
- 3. Supercharging __________ the power developed by the engine.
Options- A. has no effect on
- B. increases
- C. decreases Discuss
- 4. The exhaust gas from petrol engine contains
Options- A. petrol vapours
- B. water vapours
- C. carbon monoxide
- D. all of these Discuss
- 5. The stiffness is the ability of a material to resist
Options- A. deformation under stress
- B. fracture due to high impact loads
- C. externally applied forces with breakdown or yielding
- D. none of the above Discuss
- 6. A nozzle is said to be a divergent nozzle
Options- A. when the cross-section of the nozzle increases continuously from entrance to exit
- B. when the cross-section of the nozzle decreases continuously from entrance to exit
- C. when the cross-section of the nozzle first decreases from entrance to throat and then increases from its throat to exit
- D. none of the above Discuss
- 7. When the gas is heated at constant volume, the heat supplied increases the internal energy of the gas.
Options- A. True
- B. False Discuss
- 8. The amount of heat generated per kg of fuel is known as
Options- A. calorific value
- B. heat energy
- C. lower calorific value
- D. higher calorific value Discuss
- 9. Which of the following statement is correct for steam turbines as compared to reciprocating steam engines?
Options- A. A steam turbine develops higher speeds
- B. The efficiency of steam turbine is higher
- C. The steam consumption is less
- D. all of these Discuss
- 10. The specific weight of water in S.I. units is taken as
Options- A. 9.81 kN/m3
- B. 9.81 x 103 kN/m3
- C. 9.81 x 10-6 N/mm3
- D. any one of these Discuss
More questions
Correct Answer: identical fixed and moving blades
Correct Answer: process of coating zinc by hot dipping
Correct Answer: increases
Correct Answer: all of these
Correct Answer: deformation under stress
Correct Answer: when the cross-section of the nozzle increases continuously from entrance to exit
Correct Answer: True
Correct Answer: calorific value
Correct Answer: all of these
Correct Answer: 9.81 kN/m3
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