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- Question
To avoid the tearing off the plate of an edge, the margin (i.e., the minimum distance from the centre of the rivet hole to the nearest edge of the plate) should be equal to
Options- A. 0.5 d
- B. d
- C. 1.5 d
- D. 2.5 d
- Correct Answer
- 1.5 d
- 1. Suppose that the gain, time constant and dead time of a process with the following transfer function:Gc(s) = 10 exp( - 0.1s)/(0.5s + 1) are known with a possible error of ± 20% of their values. The largest permissible gain Kc of a proportional controller needs to be calculated below taking the values of process gain, time constant and dead time as
Options- A. 8, 0.6, 0.08
- B. 12, 0.6, 0.12
- C. 8, 0.6, 0.12
- D. 12, 0.4, 0.08 Discuss
- 2. For a feed back control system to be stable, the
Options- A. roots of the characteristic equation should be real.
- B. poles of the closed loop transfer function should lie in the left half of the complex plane.
- C. Bode plots of the corresponding open loop transfer function should monotoni-cally decrease.
- D. poles of the closed loop transfer function should lie in the right half of the complex plane. Discuss
- 3. The __________ of a chemical company can be obtained directly from the balance sheet as the difference between current assets and current liabilities.
Options- A. cash ratio
- B. net working capital
- C. current ratio
- D. liquids assets Discuss
- 4. Dacron is a
Options- A. condensation polymerisation product of hexamethylene diamine and adipic acid.
- B. condensation polymerisation product of dimethyl terephthalate (DMT) and ethylene glycol.
- C. thermosetting material.
- D. none of these. Discuss
- 5. Pirani gauge is used for the measurement of
Options- A. very high pressure.
- B. high vacuum.
- C. liquid level under pressure.
- D. liquid level at atmospheric pressure Discuss
- 6. Fertiliser value of a nitrogeneous fertiliser is expressed in terms of its __________ content.
Options- A. N2
- B. KNO3
- C. NO2
- D. NHO3 Discuss
- 7. Colligative properties of a dilute solution are those which depend entirely upon the
Options- A. constitution of the solute.
- B. chemical composition of the solute.
- C. number of solute molecules contained in a given volume of the solvent.
- D. none of these. Discuss
- 8. __________ fuels require the maximum percentage of 'excess air' for complete combustion.
Options- A. Solid
- B. Liquid
- C. Gaseous
- D. Nuclear Discuss
- 9. Optimum reaction temperature in steam reforming of naphtha is __________ °C.
Options- A. 700 - 1000
- B. 300 - 450
- C. 1500-1700
- D. 100-200 Discuss
- 10. Natural gasoline is produced
Options- A. from oil wells
- B. in oil refineries
- C. by natural gas stripping
- D. none of these Discuss
More questions
Correct Answer: 12, 0.6, 0.12
Correct Answer: poles of the closed loop transfer function should lie in the left half of the complex plane.
Correct Answer: net working capital
Correct Answer: none of these.
Correct Answer: high vacuum.
Correct Answer: N2
Correct Answer: constitution of the solute.
Correct Answer: Solid
Correct Answer: 700 - 1000
Correct Answer: by natural gas stripping
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