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- Question
The Young's modulus of a material is 125 GPa and Poissons ratio is 0.25. The modulus of rigidity of me material is
Options- A. 30 GPa
- B. 50 GPa
- C. 80 GPa
- D. 100 GPa
- Correct Answer
- 50 GPa
- 1. Plutonium (Pu239) is produced
Options- A. artificially
- B. by fission of Th232
- C. when U238 is irradiated by neutrons
- D. as basic raw material Discuss
- 2. The crankcase dilution means
Options- A. dilution of fuel in the crankcase
- B. dilution of oil by water in the crankcase
- C. dilution of lubrication oil by fuel in the crankcase
- D. dilution of mixture passing through crankcase in two-stroke engines Discuss
- 3. The average value of thermal conductivity for water at 20° C saturate is about 0.51.
Options- A. True
- B. False Discuss
- 4. In a vapour compression system, the condition of refrigerant before passing through the condenser is
Options- A. saturated liquid
- B. wet vapour
- C. dry saturated vapour
- D. superheated vapour Discuss
- 5. The blade of a power saw is made of
Options- A. boron steel
- B. high speed steel
- C. stainless steel
- D. malleable cast iron Discuss
- 6. The charge of the blast furnace consists of
Options- A. calcined ore (8 parts ), coke (4 parts) and limestone (1 part)
- B. calcined ore (4 parts), coke (1 part) and limestone (8 parts)
- C. calcined ore (1 part), coke (8 part) and limestone (4 parts)
- D. calcined ore, coke and limestone all in equal parts Discuss
- 7. The expression
is used for calculating
Options- A. relative humidity
- B. humidity ratio
- C. degree of saturation
- D. pressure of water vapour Discuss
- 8. An open cycle gas turbine works on the same cycle as that of a closed cycle gas turbine.
Options- A. Yes
- B. No Discuss
- 9. The two rows of cylinders in a 'V' type engine are generally arranged at
Options- A. 45°
- B. 60°
- C. 90°
- D. 130° Discuss
- 10. A lap joint is always in __________ shear.
Options- A. single
- B. double Discuss
More questions
Correct Answer: when U238 is irradiated by neutrons
Correct Answer: dilution of lubrication oil by fuel in the crankcase
Correct Answer: True
Correct Answer: superheated vapour
Correct Answer: high speed steel
Correct Answer: calcined ore (8 parts ), coke (4 parts) and limestone (1 part)
Correct Answer: humidity ratio
Correct Answer: Yes
Correct Answer: 60°
Correct Answer: single
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