Explore topic-wise MCQs in Current Affairs.

This section includes 58536 Mcqs, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.

8001.

Which one of the following mineral admixtures is used to improve the mechanical property of SCC?

A. Stone powder
B. Silica fume
C. GGBS
D. Fly ash
Answer» C. GGBS
8002.

Which one of the following methods/techniques will be used for placing of concrete 'in dewatered 'Caissons or Coffer ‘dams?

A. Tremie method
B. Placing in bags
C. Prepacked concrete
D. In-the-dry practice
Answer» E.
8003.

Which one of the following microwave diodes is suitable for very low power oscillations applications only?

A. Tunnel
B. IMPATT
C. VARACTOR
D. GUNN
Answer» B. IMPATT
8004.

Which one of the following microbes causes acidification and curdling of milk?

A. Lactic Acid Bacillus
B. Clostridium botulinum
C. Vibrio cholera
D. Saccharomyces cerevisiae
Answer» B. Clostridium botulinum
8005.

Which one of the following methods would be best suited for disposal of plastic and rubber waste?

A. Composting
B. Incineration
C. Pyrolysis
D. Sanitary landfill
Answer» D. Sanitary landfill
8006.

Which one of the following methods of tunnelling is used in hard rocks?

A. Fore poling method
B. Needle beam method
C. Heading and Benching method
D. Shield tunnelling method
Answer» D. Shield tunnelling method
8007.

Which one of the following methods of planning is an attempt to work out the implications of the development effort in terms of factor allocations and product yields so as to maximize income and employment?

A. Perspective planning
B. Physical planning
C. Financial planning
D. Indicative planning
Answer» C. Financial planning
8008.

Which one of the following methods of levelling eliminates the error due to curvature and refraction?

A. Fly levelling
B. Levelling by equalizing the distances of back sight and foresight
C. Check levelling
D. Precise levelling
Answer» C. Check levelling
8009.

Which one of the following methods of design is not suitable for structures subjected to impact and fatigue?

A. Simple Design
B. Semi Rigid design
C. Rigid design
D. Plastic Design
Answer» E.
8010.

Which one of the following methods of Capital Budgeting assumes that cash-inflows are reinvested at the project’s rate of return ?

A. Net Present Value
B. Accounting Rate of Return
C. Internal Rate of Return
D. Discounted Pay Back Period
Answer» D. Discounted Pay Back Period
8011.

Which one of the following methods is suitable to calculate the working depth of the gear?

A. Centre distance between engaging gears
B. Sum of their addendum
C. Sum of their dedendum
D. None of the above
Answer» C. Sum of their dedendum
8012.

Which one of the following methods is not the category of Geophysical methods of sub-surface investigation?

A. Electrical resistivity method
B. Electric logging
C. Gamma-ray logging
D. Electrical response surveying
Answer» E.
8013.

Which one of the following methods is not classified as a Force Method?

A. The Theorem of Three Moments
B. The Moments Distribution Method
C. The Method of Consistent Deformation
D. Castigliano’s Theorem
Answer» C. The Method of Consistent Deformation
8014.

Which one of the following methods is most commonly used in rural areas for defluoridation?

A. Activated sludge treatment
B. Lime soda process
C. Nalgonda technique
D. Co-precipitation
Answer» D. Co-precipitation
8015.

Which one of the following methods is adopted for tunneling in soft soils?

A. Pilot tunnel method
B. Drift method
C. Needle beam method
D. Heading and benching method
Answer» D. Heading and benching method
8016.

Which one of the following methods for determination of engine friction is only applicable for diesel engines and also the gross fuel consumption is plotted against brake power and it is extended backward to zero fuel consumption?

A. Morse test
B. Motoring method
C. Deceleration method
D. Willan’s line method
Answer» E.
8017.

Which one of the following methods commonly used to estimate numerically the change taking place in one sector or industry bringing about changes in other sectors of the economy?A. Cluster analysisB. EconometricsC. Input-Output analysisD. Principal Component analysisChoose the most appropriate answer from the option given below:

A. A only
B. B only
C. C only
D. D only
Answer» D. D only
8018.

Which one of the following methods can be used to remove permanent hardness of water?

A. Boiling
B. Ion-exchange
C. Lime treatment
D. Bubbling sulphur dioxide gas
Answer» C. Lime treatment
8019.

Which one of the following methods can be adopted to obtain isothermal compression in an air compressor?

A. Increasing the weight of the compressor
B. Interstate heating
C. Atmospheric cooling
D. Providing appropriate dimensions to the cylinder.
Answer» E.
8020.

Which one of the following metals burns if kept in air?

A. Sodium
B. Magnesium
C. Zinc
D. Aluminium
Answer» B. Magnesium
8021.

Which one of the following meters has maximum loading effect on the circuit under measurement?

A. 1000 Ω / volt
B. 100 Ω / volt
C. 1 MΩ / volt
D. 10 MΩ / volt
Answer» C. 1 MΩ / volt
8022.

Which one of the following metals is used in the filaments of photo-electric cells that convert light energy into electric energy?

A. tungsten
B. Copper
C. Rubidium
D. Aluminium
Answer» D. Aluminium
8023.

Which one of the following metals has both malleability and ductility properties:

A. Na
B. Au
C. Ce
D. Hg
Answer» C. Ce
8024.

Which one of the following metals is not of face centered cubic structure?

A. Aluminium
B. Chromium
C. Copper
D. Nickel
Answer» C. Copper
8025.

Which one of the following metals is kept immersed in Kerosene oil to protect it and to prevent accidental fire ?​

A. Calcium
B. ​Sodium
C. Vanadium
D. Magnesium
Answer» C. Vanadium
8026.

Which one of the following metals is found in a liquid state at room temperature?

A. Potassium
B. Sodium
C. Mercury
D. Aluminum
Answer» D. Aluminum
8027.

Which one of the following metals is alloyed with sodium to transfer heat in a nuclear reactor?

A. Potassium
B. Calcium
C. Magnesium
D. Strontium
Answer» B. Calcium
8028.

Which one of the following metals does NOT react with cold water?

A. Calcium (Ca)
B. Potassium (K)
C. Magnesium (Mg)
D. Sodium (Na)
Answer» D. Sodium (Na)
8029.

Which one of the following mediums is used for the fastest cooling rate of steel quenching?

A. Air
B. Oil
C. Water
D. Brine
Answer» E.
8030.

Which one of the following measuring instruments consumes the least power?

A. Induction type
B. Moving iron type
C. Dynamometer type
D. Permanent magnet moving coil type
Answer» E.
8031.

Which one of the following mechanisms is an inversion of double slider-crank chain?

A. Elliptic trammels
B. Beam engine
C. Oscillating cylinder engine
D. Coupling rod of a locomotive
Answer» B. Beam engine
8032.

Which one of the following measures of central tendency will be used to determine the average size of the shoe sold in the shop?

A. Arithmetic mean
B. Geometric mean
C. Median
D. Mode
Answer» E.
8033.

Which one of the following measures were NOT adopted by Lord Curzon?

A. The Calcutta Municipal Amendment Act
B. Indian Universities Act
C. Indian Officials Secrets Amendment Act
D. Law for Protecting Ancient Indian Monuments
Answer» D. Law for Protecting Ancient Indian Monuments
8034.

Which one of the following measures of central tendency is used in construction of index numbers?

A. Harmonic mean
B. Geometric mean
C. Median
D. Mode
Answer» C. Median
8035.

Which one of the following measures is not likely to aid in improving India`s Balance of Payment position ?

A. Promotion of Import Substitution Policy
B. Devaluation of rupee
C. Imposition of higher tariff on imports
D. Levying of higher duties on exports
E. None of the above/More than one of the above
Answer» E. None of the above/More than one of the above
8036.

Which one of the following measures is used to validate the consistency of a questionnaire?

A. Level of significance
B. Cronbach's Alpha
C. Arthimetic mean
D. Mean square error
Answer» C. Arthimetic mean
8037.

Which one of the following may be harmful in terms of effective decision-making by the group members ?

A. Extreme cohesiveness
B. Commitment for the goal
C. Honesty and credibility
D. Effective training and experience
Answer» B. Commitment for the goal
8038.

Which one of the following may be considered as a single cylinder two-stroke reciprocating engine running at 2400 rpm to 2700 rpm for rapid chain of impulses?

A. Turbo jet
B. Pulse jet
C. Ram jet
D. Athodyd jet
Answer» C. Ram jet
8039.

Which one of the following matrices is singular?

A. \(\left[ {\begin{array}{*{20}{c}}2&5\\1&3\end{array}} \right]\)
B. \(\left[ {\begin{array}{*{20}{c}}3&2\\2&3\end{array}} \right]\)
C. \(\left[ {\begin{array}{*{20}{c}}2&4\\3&6\end{array}} \right]\)
D. \(\left[ {\begin{array}{*{20}{c}}4&3\\6&2\end{array}} \right]\)
Answer» D. \(\left[ {\begin{array}{*{20}{c}}4&3\\6&2\end{array}} \right]\)
8040.

Which one of the following matrices is an elementary matrix?

A. \(\left[ {\begin{array}{*{20}{c}} 1&0&0\\ 0&0&0\\ 0&0&1 \end{array}} \right]\)
B. \(\left[ {\begin{array}{*{20}{c}} 1&5&0\\ 0&1&0\\ 0&0&1 \end{array}} \right]\)
C. \(\left[ {\begin{array}{*{20}{c}} 0&2&0\\ 1&0&0\\ 0&0&1 \end{array}} \right]\)
D. \(\left[ {\begin{array}{*{20}{c}} 1&0&0\\ 0&1&0\\ 0&5&2 \end{array}} \right]\)
Answer» C. \(\left[ {\begin{array}{*{20}{c}} 0&2&0\\ 1&0&0\\ 0&0&1 \end{array}} \right]\)
8041.

Which one of the following materials is used as a bonding admixture?

A. natural rubber
B. synthetic rubber
C. organic polymers
D. All option are correct
Answer» E.
8042.

Which one of the following materials is not diamagnetic at Standard Temperature and Pressure (STP)?

A. Nitrogen
B. Sodium chloride
C. Water
D. Iron
Answer» E.
8043.

Which one of the following materials contains calcium?

A. China clay
B. Corundum
C. Gypsum
D. Talc
Answer» D. Talc
8044.

Which one of the following materials is very hard and very ductile?

A. Carborundum
B. Tungsten
C. Cast iron
D. Nichrome
Answer» E.
8045.

Which one of the following materials is used for doping to prepare N-type semiconductor

A. Indium
B. Gallium
C. Arsenic
D. Silver
Answer» D. Silver
8046.

Which one of the following materials is used for cable insulation?

A. Phenol formaldehyde
B. Polytetrafluoroethylene
C. Polyvinyl chloride
D. Acrylonitrile butadiene styrene
Answer» D. Acrylonitrile butadiene styrene
8047.

Which one of the following materials is not an allotrope of carbon ?

A. Diamond
B. Graphene
C. Fly ash
D. Fullerene
Answer» D. Fullerene
8048.

Which one of the following materials is highly elastic?

A. Rubber
B. Brass
C. Steel
D. Glass
Answer» D. Glass
8049.

Which one of the following materials is having the highest electrical conductivity at room temperature?

A. Silver
B. Copper
C. Gold
D. Platinum
Answer» B. Copper
8050.

Which one of the following materials is ferromagnetic?

A. Nickel
B. Wood
C. Gold
D. Manganese
Answer» B. Wood