MCQOPTIONS
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MCQOPTIONS
This section includes 806 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. |
Slate is used for |
| A. | building walls |
| B. | road metal |
| C. | manufacture of cement |
| D. | roofing |
| Answer» E. | |
| 102. |
The principal constituent of argillaceous rock is |
| A. | Sand |
| B. | lime |
| C. | clay |
| D. | all the above |
| Answer» D. all the above | |
| 103. |
Sedimentary rocks are formed due to |
| A. | solidification of molten mass |
| B. | gradual deposition of materials like sand, clay, generally by setting water |
| C. | alteration of original stones under heat and pressure |
| D. | none of the above |
| Answer» C. alteration of original stones under heat and pressure | |
| 104. |
The ratio of tensile strength to compressive strength of steel is |
| A. | less than 1 |
| B. | equal to 1 |
| C. | more than 1 |
| D. | nothing can be said definitely |
| Answer» C. more than 1 | |
| 105. |
On the basis of durability test, Forest Research Institute of India, Dehradun, a tree ishighly durable if its average life is more than |
| A. | 5 years |
| B. | 10 years |
| C. | 15 years |
| D. | 20 years |
| Answer» C. 15 years | |
| 106. |
In a plywood the veneers are placed such that the gra ns of a layer are |
| A. | at 45° to the grains of a layer below it |
| B. | at 60° to the grains of a layer below it |
| C. | at right angles to the layer below it |
| D. | at 180° to the grains of a layer below it |
| Answer» D. at 180° to the grains of a layer below it | |
| 107. |
Under metamorphism, which of the following changes is correct? |
| A. | granite changes to gnesis. |
| B. | trap and basalt change into laterite. |
| C. | limestones change into marble. |
| D. | all the above |
| Answer» E. | |
| 108. |
The standard size of bricks as per Indian Standards is |
| A. | 230 × 120 × 80 mm |
| B. | 200 × 100 × 100 mm |
| C. | 190 × 90 × 90 mm |
| D. | 190 × 100 × 100 mm |
| Answer» D. 190 × 100 × 100 mm | |
| 109. |
A fine grained granite |
| A. | can be polished well |
| B. | can be used for exterior facing of buildings |
| C. | offers higher resistance to weathering |
| D. | all of the above |
| Answer» E. | |
| 110. |
The compressive and tensile strength of cast iron are |
| A. | 700 N/m2 and 150 N/mm2 |
| B. | 600 N/mm2 and 400 N/mm2 |
| C. | 415 N/mm2 and 415 N/mm2 |
| D. | 400 N/mm2 and 600 N/mm2 |
| Answer» B. 600 N/mm2 and 400 N/mm2 | |
| 111. |
Deterioration of stones takes place due to |
| A. | temperature variation |
| B. | freezing and thawing |
| C. | rainwater |
| D. | all of the above |
| Answer» E. | |
| 112. |
Impact value of stone for road work specified are |
| A. | wearing coat 30% |
| B. | bituminous macadam 35% |
| C. | water bound macadam 40% |
| D. | all the above |
| Answer» E. | |
| 113. |
The rocks formed due to solidification of molten mass are called. |
| A. | aqueous rocks |
| B. | sedimentary rocks |
| C. | metamorphic rocks |
| D. | igneous rocks |
| Answer» E. | |
| 114. |
A thin sheet of wood sliced from log is called |
| A. | plywood |
| B. | lamin board |
| C. | veneer |
| D. | particle board |
| Answer» D. particle board | |
| 115. |
The colour of granite is |
| A. | grey |
| B. | green |
| C. | brown |
| D. | all of these |
| Answer» E. | |
| 116. |
Compressive strength of paving bricks should not be less than |
| A. | 40 N/mm2 |
| B. | 30 N/mm2 |
| C. | 20 N/mm2 |
| D. | 40 N/mm2 |
| Answer» B. 30 N/mm2 | |
| 117. |
Boasted finish of dressing stone is |
| A. | making non-continuous parallel marks |
| B. | giving finish to a 20 mm margin only at edges |
| C. | providing continuous lines on the face |
| D. | working out 30–50 mm wide margin around the face with chisel |
| Answer» B. giving finish to a 20 mm margin only at edges | |
| 118. |
Ribs are made on steel wires to increase |
| A. | strength is compression |
| B. | strength is tension |
| C. | bond strength |
| D. | fatigue quality |
| Answer» D. fatigue quality | |
| 119. |
Excess of alkalies in the brick earth results into |
| A. | Brittleness |
| B. | white patches |
| C. | yellowish colour |
| D. | porous structure |
| Answer» C. yellowish colour | |
| 120. |
The bricks which may be used to build wall but to be provided with plaster are |
| A. | Ist Class |
| B. | IInd Class |
| C. | IIIrd Class |
| D. | IVth Class |
| Answer» C. IIIrd Class | |
| 121. |
Which of the following stone has the highest resistance to fire? |
| A. | granite |
| B. | limestone |
| C. | sandstone |
| D. | argillaceous material |
| Answer» E. | |
| 122. |
Smith’s test on stone is to check |
| A. | toughness |
| B. | hardness |
| C. | compressive strength |
| D. | presence of muddy substance |
| Answer» E. | |
| 123. |
Honeycomb and cracks may occur in timber due to |
| A. | erroneous conversion |
| B. | erroneous seasoning |
| C. | attack by fungi |
| D. | contact with water for a long time |
| Answer» C. attack by fungi | |
| 124. |
Particle boards are manufactured by using |
| A. | chips of wood, rice husk and bagasse |
| B. | strips of wood of width 25–80 mm |
| C. | wood pulp |
| D. | none of the above |
| Answer» B. strips of wood of width 25–80 mm | |
| 125. |
Sections of more uniform moisture content are obtained by |
| A. | ordinary sawing |
| B. | quarter sawing |
| C. | tangential sawing |
| D. | radial sawing |
| Answer» C. tangential sawing | |
| 126. |
By calcining and smelting iron ores, a crude and impure form of iron obtained is knownas |
| A. | cast iron |
| B. | wrought iron |
| C. | steel |
| D. | pig iron |
| Answer» E. | |
| 127. |
The compressive strength of high duty bricks should be more than |
| A. | 40 N/mm2 |
| B. | 20 N/mm2 |
| C. | 5 N/mm2 |
| D. | 3.5 N/mm2 |
| Answer» B. 20 N/mm2 | |
| 128. |
The process of giving required shape and size to stones is known as |
| A. | dressing |
| B. | seasoning |
| C. | polishing |
| D. | quarrying |
| Answer» B. seasoning | |
| 129. |
Non-ferrous Materials |
| A. | Market form of copper is/are |
| B. | ingots |
| C. | sheets |
| D. | tubes |
| Answer» E. | |
| 130. |
Heating technique of breaking rocks is suitable if the aim is to get |
| A. | aggregates |
| B. | slabs |
| C. | building blocks |
| D. | none of the above |
| Answer» B. slabs | |
| 131. |
Thickness of web of hollow bricks should not be less than |
| A. | 20 mm |
| B. | 16 mm |
| C. | 12 mm |
| D. | 8 mm |
| Answer» E. | |
| 132. |
Field test for strength of good bricks is to drop it from a height of ______ and they shouldnot break |
| A. | 1.2 m |
| B. | 1.0 m |
| C. | 0.7 m |
| D. | 0.75 m |
| Answer» C. 0.7 m | |
| 133. |
Hand moulded bricks take ______ days for drying while stiff-mud machine made bricks ______ days. |
| A. | 30, 5 |
| B. | 15, 2 |
| C. | 10, 1 |
| D. | 8, 1/4 |
| Answer» C. 10, 1 | |
| 134. |
Which one of the following dose not belong to endogenous trees |
| A. | teak |
| B. | coconut |
| C. | bamboo |
| D. | cane |
| Answer» D. cane | |
| 135. |
For making spiral staircases, ideal material is |
| A. | pig iron |
| B. | cast iron |
| C. | wrought iron |
| D. | steel |
| Answer» C. wrought iron | |
| 136. |
The property of metal enabling it to be drawn into thin weir is known as |
| A. | malleability |
| B. | ductility |
| C. | toughness |
| D. | plasticity |
| Answer» C. toughness | |
| 137. |
Which one of the following is softwood |
| A. | deodar |
| B. | teak |
| C. | sal |
| D. | mahogany |
| Answer» B. teak | |
| 138. |
Limestone used for manufacture of cement is |
| A. | kankar |
| B. | magnesium limestone |
| C. | compact limestone |
| D. | granular limestone |
| Answer» B. magnesium limestone | |
| 139. |
Age of exogenous tree can be judged from |
| A. | medullary rays |
| B. | annual rings |
| C. | cambium layer |
| D. | inner bark |
| Answer» C. cambium layer | |
| 140. |
The colour of cast iron is |
| A. | grey |
| B. | white |
| C. | both grey and white |
| D. | none of the above |
| Answer» D. none of the above | |
| 141. |
Terracotta means |
| A. | insulated |
| B. | fit for sanitary services |
| C. | good for ornamental work |
| D. | baked earth |
| Answer» E. | |
| 142. |
Excess of lime in the brick earth makes the bricks |
| A. | brittle and weak |
| B. | crack and warp |
| C. | melt and lose shape |
| D. | improve durability |
| Answer» D. improve durability | |
| 143. |
Purest form of iron is |
| A. | pig iron |
| B. | cast iron |
| C. | wrought iron |
| D. | steel |
| Answer» D. steel | |
| 144. |
The brick is considered dry when the moisture content is |
| A. | 8% |
| B. | 5% |
| C. | 2% |
| D. | zero |
| Answer» D. zero | |
| 145. |
Most of the stones possess the specific gravity in the range of |
| A. | 1.2 – 1.6 |
| B. | 1.6 – 2.0 |
| C. | 2.4 – 2.8 |
| D. | 3.0 – 4.0 |
| Answer» D. 3.0 – 4.0 | |
| 146. |
Which one of the following is not a softwood: |
| A. | oak |
| B. | pine |
| C. | deodar |
| D. | bamboo |
| Answer» B. pine | |
| 147. |
Siliceous sand subjected to metamorphic action is known as |
| A. | laterite |
| B. | murram |
| C. | quartzite |
| D. | dolomite |
| Answer» D. dolomite | |
| 148. |
The process of taking out stones of various sizes from natural rock is known as |
| A. | dressing |
| B. | seasoning |
| C. | polishing |
| D. | quarrying |
| Answer» E. | |
| 149. |
Water absorption of vitrified tiles is not more than |
| A. | 0.5% |
| B. | 1.0% |
| C. | 2.0% |
| D. | 5.0% |
| Answer» B. 1.0% | |
| 150. |
Which one of the following takes polish very well? |
| A. | basalt and trap |
| B. | granite |
| C. | sandstone |
| D. | quartzite |
| Answer» C. sandstone | |