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- Question
A machine has an initial value of Rs. 5000, service life of 5 years and final salvage value of Rs. 1000. The annual depreciation cost by straight line method is Rs.
Options- A. 300
- B. 600
- C. 800
- D. 1000
- Correct Answer
- 800
- 1. The most important property for a jet fuel is its
Options- A. viscosity
- B. freezing point
- C. calorific value
- D. flash point Discuss
- 2. A fertile material is the one, which can be
Options- A. converted into fissile material on absorption of neutron.
- B. fissioned by slow (thermal) neutrons.
- C. fissioned by fast neutrons.
- D. fissioned by either slow or fast neutrons. Discuss
- 3. A propeller agitator
Options- A. produces mainly axial flow.
- B. is used for mixing high viscosity pastes.
- C. runs at very slow speed (2 rpm).
- D. all (a), (b) and (c) Discuss
- 4. __________ centrifuge is the most suitable for separation of non-friable crystals.
Options- A. Tubular bowl
- B. Disc-bowl
- C. Perforated horizontal basket continuous
- D. Suspended batch basket Discuss
- 5. Calorific value of coal middling generated in coal washeries during washing of coal may be around __________ Kcal/kg.
Options- A. 1000
- B. 4000
- C. 6000
- D. 8000 Discuss
- 6. A process stream of dilute aqueous solution flowing at the rate of10 Kg.s-1 is to be heated. Steam condensate at 95°C is available for heating purpose, also at a rate of 10 Kg.s-1. A 1 - 1 shell and tube heat exchanger is available. The best arrangement is
Options- A. counter flow with process stream on shell side.
- B. counter flow with process stream on tube side.
- C. parallel flow with process stream on shell side.
- D. parallel flow with process stream on tube side. Discuss
- 7. Petrolatum is
Options- A. same as petroleum ether.
- B. petroleum coke.
- C. a mixture of microcrystalline wax in viscous hydrocarbon liquids.
- D. none of these. Discuss
- 8. Ingress of cold air in the furnaces through cracks, charging doors, openings etc.
Options- A. reduces the flue gas temperature and makes the furnace atmosphere oxidising.
- B. increases the load on the induced draft fan.
- C. reduces the furnace draught.
- D. all (a), (b) and (c) Discuss
- 9. Detergent is added as an additive in engine lubricating oil to
Options- A. reduce deposit formation.
- B. keep contaminants in suspension.
- C. increase oxidation stability.
- D. prevent rusting. Discuss
- 10. A man exposed to excessive noise level in the working environment may suffer from
Options- A. hearing loss
- B. rupture of ear drum
- C. nervousness & fatigue
- D. all (a), (b) & (c) Discuss
More questions
Correct Answer: freezing point
Correct Answer: converted into fissile material on absorption of neutron.
Correct Answer: produces mainly axial flow.
Correct Answer: Perforated horizontal basket continuous
Correct Answer: 4000
Correct Answer: counter flow with process stream on shell side.
Correct Answer: a mixture of microcrystalline wax in viscous hydrocarbon liquids.
Correct Answer: all (a), (b) and (c)
Correct Answer: reduce deposit formation.
Correct Answer: all (a), (b) & (c)
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