MCQOPTIONS
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MCQOPTIONS
This section includes 116 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
Ceramic recuperators compared to metallic recuperators for the same duty_________________? |
| A. | Are lighter |
| B. | Occupy more space |
| C. | Are less costly |
| D. | Have higher pressure differential between flue gas & air side |
| Answer» C. Are less costly | |
| 102. |
Ceramic coating material for furnace refractory, which increases its emissivity and thus the radiation heat transfer rate in the furnace, comprises of_________________? |
| A. | Graphite powder |
| B. | Thoria |
| C. | Zircon powder |
| D. | Beryllium |
| Answer» D. Beryllium | |
| 103. |
Cement Kiln is a___________________? |
| A. | Rotary Kiln |
| B. | Tunnel Kiln |
| C. | Natural draft furnace |
| D. | Batch furnace |
| Answer» B. Tunnel Kiln | |
| 104. |
_____________ atmosphere is maintained inside an iron blast furnace? |
| A. | Oxidising |
| B. | Reducing |
| C. | Inert |
| D. | Decarburising |
| Answer» C. Inert | |
| 105. |
Artificial draught produced by a fan in the furnace can be controlled by the___________________? |
| A. | Speed of the fan |
| B. | Damper |
| C. | Variation in the pitch of fan blades |
| D. | All A., B. and C. |
| Answer» E. | |
| 106. |
An improved and fuel efficient version of the pusher type reheating furnace is the ______________ furnace? |
| A. | Walking beam |
| B. | Shaft |
| C. | Tunnel |
| D. | Rotary hearth |
| Answer» B. Shaft | |
| 107. |
An example of shaft furnace is the__________________? |
| A. | L.D. converter |
| B. | Glass melting tank |
| C. | Blast furnace |
| D. | Soaking pit |
| Answer» D. Soaking pit | |
| 108. |
An example of recuperative furnace is the__________________? |
| A. | Soaking pit |
| B. | Open hearth furnace |
| C. | Coke ovens |
| D. | None of these |
| Answer» B. Open hearth furnace | |
| 109. |
An example of indirectly heated furnace is the_________________? |
| A. | Soaking pit |
| B. | Muffle furnace |
| C. | Reheating furnace |
| D. | None of these |
| Answer» C. Reheating furnace | |
| 110. |
An example of a periodic furnace is the__________________? |
| A. | Blast furnace stoves |
| B. | Blast furnace |
| C. | Coke oven heating chamber |
| D. | Rotary kilns |
| Answer» B. Blast furnace | |
| 111. |
An electric furnace producing heat by means of an electric arc struck between each of three electrodes and the charge is called ____________ furnace? |
| A. | Resistance |
| B. | Arc |
| C. | Low frequency induction |
| D. | None of these |
| Answer» C. Low frequency induction | |
| 112. |
Amount of coal lost in ash particle, which is carried through the boiler system, depends upon the__________________? |
| A. | Physical nature, ash content and fineness of the coal |
| B. | Amount of excess air supplied and load on the boiler |
| C. | Type of burner and combustion chamber |
| D. | All A., B. and C. |
| Answer» E. | |
| 113. |
Air filtration in a furnace___________________? |
| A. | Reduces its thermal efficiency |
| B. | Is indicated by flame sting out |
| C. | Increases the flue gas temperature |
| D. | None of these |
| Answer» B. Is indicated by flame sting out | |
| 114. |
Advantages of use of preheated combustion air are__________________? |
| A. | Saving in fuel consumption |
| B. | Reduction in scale losses |
| C. | Increase in flame temperature |
| D. | All A., B. and C. |
| Answer» E. | |
| 115. |
Acid dew point temperature (ADT) of a flue gas produced by the combustion of a fuel containing 1% sulphur may be about ____________ °C? |
| A. | 80 |
| B. | 130 |
| C. | 180 |
| D. | 250 |
| Answer» C. 180 | |
| 116. |
A refractory wall separating the stock and the source of heat is provided in a__________________? |
| A. | Updraft kiln |
| B. | Muffle furnace |
| C. | Continuous furnace |
| D. | None of these |
| Answer» C. Continuous furnace | |