Explore topic-wise MCQs in General Knowledge.

This section includes 1292 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.

1101.

Which of the following device is used to measure humidity?

A. Hydrometer
B. Hygrometer
C. Psycho Meter
D. Anemometer
Answer» C. Psycho Meter
1102.

Which of the following devices helps to maintain a potential difference across a conductor?

A. Galvanometer
B. Ammeter
C. Voltmeter
D. A cell or battery
Answer» E.
1103.

Which of the following effects is not produced by current?_x005F_x000D_

A. Chemical effect
B. Contraction effect
C. Heating effect
D. Magnetic effect
Answer» C. Heating effect
1104.

Which of the following devices converts Chemical energy into Electrical energy?

A. Electric heater
B. Electric fan
C. Hair dryer
D. Electric cell
Answer» E.
1105.

Which of the following does NOT contribute to sparkling of diamonds?

A. Total Internal Reflection
B. High Refractive Index of Diamonds
C. Dispersion
D. Low Refractive Index of Diamonds
Answer» E.
1106.

Which of the following device is best suited for measuring the temperature inside metallurgical furnaces?

A. Pyrometer
B. Thermocouple
C. Thermometer
D. Thermistor
Answer» B. Thermocouple
1107.

Which of the following describes an electric motor?

A. Is found in many appliances with moving parts, like a vacuum cleaner or a blender.
B. Changes electric energy to mechanical energy.
C. Uses the interaction between a spinning coil of wire and magnet.
D. Can be powered by a hand crank.
Answer» C. Uses the interaction between a spinning coil of wire and magnet.
1108.

Which of the following definitions describes a physical hazard?

A. The most commonly thought of hazard in construction. This hazard includes radiation, extreme temperatures, noise, and vibration.
B. These hazards can lead to injuries to the joints or muscles by way of heavy, frequent lifting, repetitive tasks.
C. Can be present in dust, fumes, liquids, solids, mists, vapors, or gases of products used at a site or released during a construction job
D. Microorganisms, such as bacteria, fungus, mold, or viruses that can cause illness.
Answer» B. These hazards can lead to injuries to the joints or muscles by way of heavy, frequent lifting, repetitive tasks.
1109.

Which of the following changes when a body performs uniform circular motion?

A. Mass
B. Momentum
C. Speed
D. Direction
Answer» E.
1110.

Which of the following causes adiabatic temperature changes in atmosphere?

A. Deflection and advection
B. Latent heat of condensation
C. Expansion and compression of the air
D. Partial absorption of solar radiation by the atmosphere
Answer» D. Partial absorption of solar radiation by the atmosphere
1111.

Which of the following cannot be used for making lenses?

A. Plastic
B. Soil
C. Glass
D. Water
Answer» C. Glass
1112.

Which of the following can neither be created nor be destroyed?

A. Velocity
B. Power
C. Energy
D. Momentum
Answer» D. Momentum
1113.

Which of the following can do more work?

A. A rotating wheel
B. A moving bullet
C. A speeding stone
D. A raised hammer
Answer» C. A speeding stone
1114.

Which of the following are Mechanical waves?_x005F_x000D_

A. X rays
B. Radio waves
C. Microwaves
D. Sound waves
Answer» E.
1115.

Which object converts electricity to light?

A. Solar panels
B. Battery
C. Bulb
D. All the above
Answer» D. All the above
1116.

Which  one  of  the following  is  the  value  of one nanometer?

A. 10-7 cm
B. 10-6 cm
C. 10-4  cm
D. 10-3  cm
Answer» B. 10-6 cm
1117.

Which must be true for metamorphism to occur?

A. The grain size must become smaller
B. The process must take place underwater
C. The parent rock must be in solid form
D. The parent rock must be igneous
Answer» D. The parent rock must be igneous
1118.

Which motion has magnitude of static frictional force directly proportional to normal reaction?

A. Impending motion
B. Actual motion
C. Both 1 and 2
D. None of the above
Answer» B. Actual motion
1119.

Which mirror is used as rear view mirror in vehicles?

A. Concave
B. Plane
C. Convex
D. Any of the above
Answer» D. Any of the above
1120.

Which metal is the best conductor of heat?

A. Silver
B. Gold
C. Copper
D. All of the above
Answer» E.
1121.

Which microscope is often used to view metal surfaces?

A. Optical microscopes
B. Scanning tunneling microscopes
C. Electron microscopes
D. None of the above
Answer» C. Electron microscopes
1122.

Which measurement describes the pressure of a gas?

A. 450 mm Hg
B. 315 K
C. 251 g/cub.cm
D. None of the above
Answer» B. 315 K
1123.

Which method of expressing direction is indicated in the illustration?

A. Section
B. Interjuction
C. Intersection
D. None of the above
Answer» D. None of the above
1124.

Which measurement depends on gravitational force?

A. Mass
B. Weight
C. Height
D. All of the above
Answer» C. Height
1125.

Which liquid is the most viscous?

A. Water
B. Diesel
C. Milk
D. Oil
Answer» E.
1126.

Which lenses should be used to correct the defect of astigmatism?

A. Convex lens
B. Bifocal lens
C. Concave lens
D. Cylindrical lens
Answer» E.
1127.

Which law relates to the ideal gas law?

A. P1T1 = P2T2
B. P1/V1 = P2/V2
C. P1V1 = P2V2
D. T1/V1 = T2/V2
Answer» D. T1/V1 = T2/V2
1128.

Which law is also called law of inertia ?

A. Newton first law
B. Newton second law
C. Newton third law
D. All of above
Answer» B. Newton second law
1129.

Which is the point from where an azimuth originates?

A. South
B. North
C. East
D. West
Answer» C. East
1130.

Which is the form of energy that does NOT occur while riding a bicycle?

A. Heat energy
B. Kinetic energy
C. Chemical energy
D. Mechanical energy
Answer» D. Mechanical energy
1131.

Which is evidence that supports the dynamo theory?

A. Earth's outer core contains liquid that conducts electricity
B. Earth's core contains a large amount of iron
C. Granite and basalt conduct electricity
D. Convection occurs in Earth's inner core
Answer» C. Granite and basalt conduct electricity
1132.

Which is best used as a sound absorbing material in partition walls ?

A. Stone chips
B. Steel
C. Glass - wool
D. Glass pieces
Answer» D. Glass pieces
1133.

Which is an example of Phototropism?

A. roots of a plant following water
B. plant bending toward the light
C. roots growing into the soil
D. a venus flytrap capturing a fly
Answer» C. roots growing into the soil
1134.

Which is a correct way to measure wavelength?

A. Nearest peak to peak
B. Nearest peak to nearest trough
C. Nearest trough to peak
D. None of the above
Answer» B. Nearest peak to nearest trough
1135.

Which is a common first indicator of an approaching thunderstorm?

A. too hot
B. heavy wind
C. a buildup of dark clouds
D. lightning
Answer» D. lightning
1136.

Which instrument measures AF signal level and noise?_x005F_x000D_

A. Vectorscope
B. VU meter
C. Q meter
D. Psophometer
Answer» E.
1137.

Which instrument is used to measure humidity?_x005F_x000D_

A. Pyrometer
B. Hydrometer
C. Hygrometer
D. Calorimeter
Answer» D. Calorimeter
1138.

Which has the lowest albedo?

A. dark surfaces
B. light surfaces
C. Both A & B
D. None of the above
Answer» B. light surfaces
1139.

Which instrument is used for measuring humidity of atmosphere?

A. Barometer
B. Anemometer
C. Thermometer
D. Hygrometer
Answer» E.
1140.

Which glass is used to make spectacles?

A. Crook's glass
B. Potash glass
C. Jena glass
D. Soda glass
Answer» B. Potash glass
1141.

Which elements are malleable and good conductors of electricity?

A. tin and silver
B. iodine and silver
C. tin and xenon
D. iodine and xenon
Answer» B. iodine and silver
1142.

Which electromagnetic wave has the highest frequency?

A. Gamma Rays
B. Radio waves
C. X rays
D. Microwaves
Answer» B. Radio waves
1143.

Which device is used to measure the depth of ocean?

A. Lexometer
B. Nanometer
C. Fathometer
D. Hydrometer
Answer» D. Hydrometer
1144.

Which device is used to limit electric current in a circuit?_x005F_x000D_

A. Grid
B. Capacitor
C. Fuse
D. Resistor
Answer» D. Resistor
1145.

Which determines the frequency of a sound wave?

A. Amplitude
B. Speed
C. Source
D. Medium
Answer» B. Speed
1146.

Which compound is a nonelectrolyte?

A. C2H6O
B. HCl
C. Na2CO3
D. NaCl
Answer» B. HCl
1147.

Which compressor is usually used in AC?

A. Centrifugal
B. Rotary
C. Reciprocating
D. Axial
Answer» D. Axial
1148.

Which component of an IED creates an electrical charge?

A. activator
B. fuse
C. explosive
D. power source
Answer» E.
1149.

Which Color has the Longest Wavelength?

A. Violet
B. Yellow
C. Red
D. White
Answer» D. White
1150.

Which color has the highest frequency?

A. Violet
B. Red
C. Indigo
D. Green
Answer» B. Red