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- Question
An open tank containing liquid is made to move from rest with a uniform acceleration. The angle 0 which the free surface of liquid makes with the horizontal is such that (where a = Horizontal acceleration of the tank, and g = Acceleration due to gravity)
Options- A. tan ? = a/g
- B. tan ? = 2 a/g
- C. tan ? = a/2g
- D. tan ? = a2/2g
- Correct Answer
- tan ? = a/g
- 1. A basic difference between the spark ignition engine and the Diesel engine is that the
Options- A. Diesel engine compresses air alone instead of an air-fuel mixture
- B. air temperature ignites the fuel in the Diesel engine
- C. fuel is sprayed into the combustion chamber in the Diesel engine as the piston nears T.D.C. on the compression stroke
- D. all of the above Discuss
- 2. In a line organisation
Options- A. responsibility of each individual is fixed
- B. discipline is strong
- C. quick decisions are taken
- D. all of these Discuss
- 3. The portion of the blast furnace below its widest cross-section is called
Options- A. hearth
- B. stack
- C. bosh
- D. throat Discuss
- 4. The wave length corresponding to the maximum energy is inversely proportional to the absolute temperature. This statement is called Planck's law.
Options- A. Yes
- B. No Discuss
- 5. In a reciprocating air compressor, the compression work per kg of air
Options- A. increases as clearance volume increases
- B. decreases as clearance volume increases
- C. is independent of clearance volume
- D. increases as clearance volume decreases Discuss
- 6. The adhesiveness is the property of a sand due to which
Options- A. it evolves a great amount of steam and other gases
- B. the sand grains stick together
- C. it cling to the sides of a moulding box
- D. none of these Discuss
- 7. The pressure at the outlet of a refrigerant compressor is called
Options- A. suction pressure
- B. discharge pressure
- C. critical pressure
- D. back pressure Discuss
- 8. The rato of energy transferred by convection to that by conduction is called
Options- A. Stanton number
- B. Nusselt number
- C. Biot number
- D. Peclet number Discuss
- 9. A vapour absorption refrigeration system
Options- A. gives noisy operation
- B. gives quiet operation
- C. requires little power consumption
- D. cools below 0° C Discuss
- 10. The service brakes employed in cars are generally operated
Options- A. mechanically
- B. hydraulically
- C. pneumatically
- D. none of these Discuss
More questions
Correct Answer: all of the above
Correct Answer: all of these
Correct Answer: bosh
Correct Answer: No
Correct Answer: is independent of clearance volume
Correct Answer: it cling to the sides of a moulding box
Correct Answer: discharge pressure
Correct Answer: Nusselt number
Correct Answer: gives quiet operation
Correct Answer: hydraulically
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