MCQOPTIONS
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MCQOPTIONS
This section includes 8247 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 851. |
Which of the following has the highest compressive strength ? |
| A. | Wrought iron |
| B. | Cast iron |
| C. | Mild steel |
| D. | High carbon steel |
| Answer» E. | |
| 852. |
Zinc is not used |
| A. | for producing zinc base die casting alloys. |
| B. | in its oxide form as pigments. |
| C. | as anode for corrosion prevention in boiler. |
| D. | as an alloying element in various bronzes. |
| Answer» E. | |
| 853. |
Refined acetic acid storage vessel are made of |
| A. | copper |
| B. | aluminium |
| C. | high carbon steel |
| D. | nickel |
| Answer» C. high carbon steel | |
| 854. |
Addition of __________ to the steel helps in increasing the residual magnetism in steel used for making magnets. |
| A. | chromium |
| B. | nickel |
| C. | tungsten |
| D. | cobalt |
| Answer» E. | |
| 855. |
Constantan is an alloy of |
| A. | Cu (55%) & Sn (45%). |
| B. | Cu (55%) & Ni (45%). |
| C. | Pt (95%) & Rh (10%). |
| D. | Fe (80%) & Ni (20%). |
| Answer» C. Pt (95%) & Rh (10%). | |
| 856. |
Caustic soda is produced in a mercury cell having anode and cathode made respectively of moving mercury and |
| A. | moving mercury and graphite. |
| B. | graphite and moving mercury. |
| C. | moving mercury and carbon. |
| D. | moving mercury and crimped steel wire. |
| Answer» C. moving mercury and carbon. | |
| 857. |
German silver in an alloy of |
| A. | copper, nickel and zinc. |
| B. | copper, aluminium and silver. |
| C. | silver, zinc and aluminium. |
| D. | silver, nickel and zinc. |
| Answer» B. copper, aluminium and silver. | |
| 858. |
A suitable material of construction to use with fuming sulphuric acid is |
| A. | carbon steel |
| B. | stainless steel type 304 |
| C. | nickel |
| D. | monel |
| Answer» E. | |
| 859. |
Which of the following crystal structures characterises the austenitic stainless steel? |
| A. | Simple hexagonal |
| B. | Body centred cubic |
| C. | Face centred cubic |
| D. | None of these |
| Answer» D. None of these | |
| 860. |
Austenitic manganese steel used for making jaws of crushing machines contains about __________ percent manganese. |
| A. | 1.5-2 |
| B. | 3.5-4.5 |
| C. | 7-9 |
| D. | 12-14 |
| Answer» E. | |
| 861. |
White cast iron is not |
| A. | malleable |
| B. | whitish in color |
| C. | brittle |
| D. | strong and hard |
| Answer» B. whitish in color | |
| 862. |
Galvanised iron is |
| A. | harder |
| B. | protected from rusting |
| C. | alumina coated iron |
| D. | none of these |
| Answer» C. alumina coated iron | |
| 863. |
German silver used for decorative purposes contains maximum percentage of |
| A. | silver |
| B. | copper |
| C. | zinc |
| D. | nickel |
| Answer» C. zinc | |
| 864. |
The metals occuring at the lower most position in the electromotive series |
| A. | do not resist corrosion. |
| B. | resist corrosion very strongly. |
| C. | are very brittle. |
| D. | are heat insulators. |
| Answer» C. are very brittle. | |
| 865. |
18/8 steel is a/an __________ stainless steel. |
| A. | austenitic |
| B. | ferritic |
| C. | martensitic |
| D. | none of these |
| Answer» B. ferritic | |
| 866. |
The main purpose of galvanising iron sheets is to |
| A. | harden the surface. |
| B. | increase its glossiness and lustre. |
| C. | prevent the action of water. |
| D. | prevent the action of oxygen. |
| Answer» D. prevent the action of oxygen. | |
| 867. |
The impure iron (pig iron) that is tapped out from blast furnace contains about __________ percent carbon. |
| A. | 0.2 |
| B. | 2 |
| C. | 4 |
| D. | 8 |
| Answer» D. 8 | |
| 868. |
Invar used in thermocouples is an alloy of nickel and |
| A. | iron |
| B. | copper |
| C. | chromium |
| D. | lead |
| Answer» B. copper | |
| 869. |
Nickel (56%) and molybdenum (17%) alloys are called |
| A. | monel |
| B. | hastealloy C |
| C. | inconel |
| D. | bronzes |
| Answer» C. inconel | |
| 870. |
Sulphur melting pit in the sulphuric acid plant is made of |
| A. | lead lined stainless steel. |
| B. | cast iron. |
| C. | steel or cement-brick lined. |
| D. | hard wood. |
| Answer» D. hard wood. | |
| 871. |
Dielectric strength of a material is |
| A. | its energy stroage capacity. |
| B. | a magnetic property. |
| C. | its capacity to resist the flow of current. |
| D. | its capacity to withstand high voltage. |
| Answer» E. | |
| 872. |
18-4-1 high speed steel contains 18%, 4% and 1% respectively of |
| A. | tungsten, vanadium and chromium |
| B. | tungsten, chromium and vanadium |
| C. | vanadium, chromium and tungsten |
| D. | chromium, tungsten and vanadium |
| Answer» C. vanadium, chromium and tungsten | |
| 873. |
Aluminium as a material of construction suffers from the disadvantage of |
| A. | very high cost. |
| B. | rather low tensile strength. |
| C. | very low strength to weight ratio. |
| D. | scarce availability. |
| Answer» C. very low strength to weight ratio. | |
| 874. |
Babbit metal used for bearings is a____base alloy. |
| A. | tin |
| B. | lead |
| C. | aluminium |
| D. | copper |
| Answer» B. lead | |
| 875. |
The hardest material just prior to diamond in Mho's scale is |
| A. | topax |
| B. | carborundum |
| C. | corrundum |
| D. | calcite |
| Answer» D. calcite | |
| 876. |
Heavy duty bearings are usually made of |
| A. | white metal |
| B. | phosphorous bronze |
| C. | monel |
| D. | zinc |
| Answer» B. phosphorous bronze | |
| 877. |
Softness of silver can be converted into hardness by alloying it with small quantity of |
| A. | copper & nickel |
| B. | zinc |
| C. | aluminium |
| D. | tin |
| Answer» B. zinc | |
| 878. |
The melleability of a material is the property by virtue of which it can be rolled or hammered into thin sheets. Which of the following materials has the miximum malleability ? |
| A. | Lead |
| B. | Copper |
| C. | Aluminium |
| D. | Wrought iron |
| Answer» B. Copper | |
| 879. |
Thermal efficiency of furnaces can be improved by |
| A. | waste heat recovery from flue gas. |
| B. | minimising heat losses from furnace walls. |
| C. | maintaining proper draught. |
| D. | all (a), (b) and (c). |
| Answer» E. | |
| 880. |
Hammers and railway rails are normally made of |
| A. | mild steel |
| B. | dead mild steel |
| C. | medium carbon steel |
| D. | high carbon steel |
| Answer» E. | |
| 881. |
Ceramic recuperators are generally made of |
| A. | silicon carbide. |
| B. | calcium carbide. |
| C. | fireclay bricks. |
| D. | high alumina bricks. |
| Answer» B. calcium carbide. | |
| 882. |
The addition of antimony in tin-based alloys improves its |
| A. | rupture strength and hot hardness. |
| B. | impact strength and bonding strength. |
| C. | deformation resistance. |
| D. | wear resistance. |
| Answer» D. wear resistance. | |
| 883. |
Shaft furnaces are used for |
| A. | smelting |
| B. | calcining |
| C. | roasting |
| D. | all (a), (b) and (c) |
| Answer» E. | |
| 884. |
The main function of a muffle in the muffle furnace is to |
| A. | protect the charge from the effects of the products of combustion. |
| B. | smooth out temperature inequalities on the combustion side of the muffle wall. |
| C. | both (a) & (b) |
| D. | neither (a) nor (b) |
| Answer» D. neither (a) nor (b) | |
| 885. |
Optimum number of effects in a multiple effect evaporator is decided by the |
| A. | cost benefit analysis. |
| B. | floor area availability. |
| C. | terminal parameters. |
| D. | evaporation capacity required. |
| Answer» B. floor area availability. | |
| 886. |
Hearth furnaces are not used for |
| A. | roasting |
| B. | melting |
| C. | reheating |
| D. | none of these |
| Answer» E. | |
| 887. |
An investment of Rs. 100 lakhs is to be made for construction of a plant, which will take two years to start production. The annual profit from the operation of the plant is Rs. 20 lakhs. What will be the pay back time ? |
| A. | 5 years |
| B. | 7 years |
| C. | 12 years |
| D. | 10 years |
| Answer» C. 12 years | |
| 888. |
Which of the following is not a component of the fixed capital for a chemical plant facility? |
| A. | Raw materials inventory. |
| B. | Utilities plants. |
| C. | Process equipment. |
| D. | Emergency facilities. |
| Answer» B. Utilities plants. | |
| 889. |
An investment of Rs. 1000 is carrying an interest of 10% compounded quarterly. The value of the investment at the end of five years will be |
| A. | <img src="/_files/images/chemical-engineering/chemical-engineering-plant-economics/607-102-1.png"> |
| B. | 1000 (1 + 0.1) |
| C. | <sup>20</sup> |
| D. | <img src="/_files/images/chemical-engineering/chemical-engineering-plant-economics/607-102-2.png"> |
| E. | <img src="/_files/images/chemical-engineering/chemical-engineering-plant-economics/607-102-3.png"> |
| Answer» B. 1000 (1 + 0.1) | |
| 890. |
Functional depreciation of an equipment is the measure of decrease in its value due to its |
| A. | ageing |
| B. | wear and tear |
| C. | obsolescence |
| D. | breakdown or accident |
| Answer» D. breakdown or accident | |
| 891. |
The ratio of gross annual sales to the fixed capital investment is termed as the __________ ratio. |
| A. | cash reserve |
| B. | capital |
| C. | turnover |
| D. | investment |
| Answer» D. investment | |
| 892. |
'Lang factor' is defined as the ratio of the capital investment to the delivered cost of major equipments. The value of 'Lang factor' for fixed capital investment, for a solid-fluid processing chemical plant ranges from |
| A. | 1.2 to 1.4 |
| B. | 2.5 to 2.7 |
| C. | 4.2 to 4.4 |
| D. | 6.2 to 6.4 |
| Answer» D. 6.2 to 6.4 | |
| 893. |
A balance sheet for a chemical plant shows its financial condition at any given date. It does not contain the __________ of the plant. |
| A. | current asset |
| B. | current liability |
| C. | long term debt |
| D. | profit |
| Answer» E. | |
| 894. |
The 'total capital investment' for a chemical process plant comprises of the fixed capital investment and the |
| A. | overhead cost |
| B. | working capital |
| C. | indirect production cost |
| D. | direct production cost |
| Answer» C. indirect production cost | |
| 895. |
Cost of piping in a fluid processing unit (e.g., distillation) of a chemical process plant is about __________ percent of the fixed capital investment. |
| A. | 4 |
| B. | 13 |
| C. | 22 |
| D. | 34 |
| Answer» C. 22 | |
| 896. |
Effective and nominal interest rates are equal, when the interest is compounded |
| A. | annually |
| B. | fortnightly |
| C. | monthly |
| D. | half-yearly |
| Answer» B. fortnightly | |
| 897. |
In a chemical process plant, the total product cost comprises of manufacturing cost and the |
| A. | general expenses |
| B. | overhead cost |
| C. | R & D cost |
| D. | none of these |
| Answer» B. overhead cost | |
| 898. |
Generally, income taxes are based on the |
| A. | total income |
| B. | gross earning |
| C. | total product cost |
| D. | fixed cost |
| Answer» C. total product cost | |
| 899. |
A balance sheet for an industrial concern shows |
| A. | the financial condition at any given time. |
| B. | only current assets. |
| C. | only fixed assets. |
| D. | only current and fixed assets. |
| Answer» B. only current assets. | |
| 900. |
Chemical engineering plant cost index is used for finding the present cost of a particular chemical plant, if the cost of similar plant at some time in the past is known. The present cost of the plant = original cost x The most major component of this cost index is |
| A. | fabricated equipment and machinery. |
| B. | process instruments and control. |
| C. | pumps and compressor. |
| D. | electrical equipments and material. |
| Answer» B. process instruments and control. | |