MCQOPTIONS
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MCQOPTIONS
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.
| 451. |
Instrument for measuring wind velocity is called |
| A. | Coulombmeter |
| B. | Anemometer |
| C. | Cyanometer |
| D. | Chronometer |
| Answer» C. Cyanometer | |
| 452. |
Instrument for measuring time is called _____ . |
| A. | Diagometer |
| B. | Anemometer |
| C. | Durometer |
| D. | Chronometer |
| Answer» E. | |
| 453. |
Instrument for measuring blueness of the sky or ocean is called ___________. |
| A. | Bathymeter |
| B. | Ceraunograph |
| C. | Cyanometer |
| D. | Barometer |
| Answer» D. Barometer | |
| 454. |
Instrument for measuring low temperatures is called |
| A. | Diagometer |
| B. | Cryometer |
| C. | Chromatoptometer |
| D. | Cymometer |
| Answer» E. | |
| 455. |
Instrument for measuring rainfall is called |
| A. | Lucimeter |
| B. | Galactometer |
| C. | Hyetometer |
| D. | Hygrometer |
| Answer» D. Hygrometer | |
| 456. |
Instrument for measuring light intensity is called |
| A. | Lucimeter |
| B. | Cryometer |
| C. | Cyanometer |
| D. | Barometer |
| Answer» B. Cryometer | |
| 457. |
Increased wind speed is accompanied by a reduced air _____________. |
| A. | humidity |
| B. | pressure |
| C. | density |
| D. | aridity |
| Answer» C. density | |
| 458. |
In which of the following situations is mechanical energy most likely to be conserved? |
| A. | A feather falls from the sky. |
| B. | A football flies through the air. |
| C. | A hockey player digs his skates into the ice. |
| D. | A skateboard rolls into the grass. |
| Answer» C. A hockey player digs his skates into the ice. | |
| 459. |
In which of the following mentioned activities is the potential energy (P.E) converted into kinetic energy(K.E)? |
| A. | The explosion of a fire cracker |
| B. | The switching on of a torch |
| C. | The switching off of a torch |
| D. | The swinging of a pendulum |
| Answer» E. | |
| 460. |
In which of the following examples will an athlete have maximum accelerated motion?_x005F_x000D_ |
| A. | Running on an octagonal track |
| B. | Running on a hexagonal track |
| C. | Running on a rectangular track |
| D. | Running on a circular track |
| Answer» E. | |
| 461. |
In which of the following activities is work NOT done? |
| A. | Ashwin is standing on the platform |
| B. | Ashwin is running |
| C. | Ashwin is walking |
| D. | Ashwin is climbing a bus |
| Answer» B. Ashwin is running | |
| 462. |
In which layer is the pressure the highest? |
| A. | Ionosphere |
| B. | Stratosphere |
| C. | Troposphere |
| D. | Inner core |
| Answer» E. | |
| 463. |
In which form is the supplied heat energy stored during change in temperature of substance? |
| A. | Heat energy |
| B. | Kinetic energy |
| C. | Potential energy |
| D. | Both kinetic and potential energy |
| Answer» C. Potential energy | |
| 464. |
In very cold countries alcohol is used as a thermometric liquid because |
| A. | alcohol is a poor conductor of heat |
| B. | alcohol can be coloured for its level to be seen easily |
| C. | its freezing point is very low |
| D. | it will not stick to the glass tube |
| Answer» D. it will not stick to the glass tube | |
| 465. |
In total internal reflection, the light travel from |
| A. | rarer to denser medium and it occurs with no loss of intensity |
| B. | denser to rarer medium and it occurs with no loss of intensity |
| C. | rarer to denser medium and it occurs with loss of intensity |
| D. | denser to rarer medium and it occurs with loss of intensity |
| Answer» C. rarer to denser medium and it occurs with loss of intensity | |
| 466. |
In the gamma decay of a nucleus |
| A. | the mass number of the nucleus changes whereas its atomic number does not change |
| B. | the mass number of the nucleus does not change whereas its atomic number changes |
| C. | both the mass number and the atomic number of the nucleus change |
| D. | neither the mass number nor the atomic number of the nucleus changes |
| Answer» E. | |
| 467. |
In the formula average velocity = (u + v) /2, u is the ___________. |
| A. | Final velocity |
| B. | Initial displacement |
| C. | Initial velocity |
| D. | Final displacement |
| Answer» D. Final displacement | |
| 468. |
In the equation of motion v = u + at, u represents _________________ |
| A. | initial velocity |
| B. | final velocity |
| C. | kinetic energy |
| D. | potential energy |
| Answer» B. final velocity | |
| 469. |
In the electrical circuit of a house, the fuse acts as |
| A. | a load |
| B. | a thermopile |
| C. | a safety device |
| D. | a step down device |
| Answer» D. a step down device | |
| 470. |
In the case of bodies falling under gravity which of the following remains constant at a given place? |
| A. | Kinetic energy |
| B. | Potential energy |
| C. | acceleration |
| D. | all the above |
| Answer» D. all the above | |
| 471. |
In the context of nonÂ-conventional energy, what is the meaning of 'OTE' ? |
| A. | Ocean Tidal Energy |
| B. | Ocean Thermal Energy |
| C. | Ocean Tidal Electricity |
| D. | Other Thermal Energy |
| Answer» C. Ocean Tidal Electricity | |
| 472. |
In spherical polar coordinates (l, q, a), q denotesthe polar angle around z-axis and a denotes the azimuthal angle raised from x-axis . Then the y-component of P is given by |
| A. | Psinq sina |
| B. | Psinq cosa |
| C. | Pcosq sina |
| D. | Pcosq cosa |
| Answer» B. Psinq cosa | |
| 473. |
In science a push or pull of an object is called ________. |
| A. | Pick |
| B. | Lift |
| C. | Force |
| D. | Shut |
| Answer» D. Shut | |
| 474. |
In projectile motion, the total flight time is _______. |
| A. | equal to the time required to reach the maximum height |
| B. | thrice the time required to reach the maximum height |
| C. | four times the time required to reach the maximum height |
| D. | twice the time required to reach the maximum height |
| Answer» E. | |
| 475. |
In order to make an electromagnet you need a |
| A. | Dry cell batteries |
| B. | Thin coated copper wire |
| C. | Iron nail |
| D. | All of the above |
| Answer» E. | |
| 476. |
In nuclear reactor, cadmium rods are used as which of the following? |
| A. | Fuel |
| B. | Moderator_x005F_x000D_ |
| C. | Controller_x005F_x000D_ |
| D. | Lubricant |
| Answer» D. Lubricant | |
| 477. |
In human relations, the irritation threshold is the |
| A. | length of time an annoying behavior continues |
| B. | action that causes an annoyance |
| C. | frequency of the annoying behavior |
| D. | point at which a person notices something and becomes annoyed |
| Answer» E. | |
| 478. |
In general, which is the cause of a land breeze? |
| A. | Pressure |
| B. | Heat |
| C. | Temperature |
| D. | None of the above |
| Answer» D. None of the above | |
| 479. |
In hydel power station, the motion produced in turbines is due to |
| A. | flow of water |
| B. | burning of coal |
| C. | burning of diesel |
| D. | production of steam |
| Answer» B. burning of coal | |
| 480. |
In general, which is the cause of a sea breeze? |
| A. | Pressure |
| B. | Specific heat |
| C. | Heat |
| D. | All the above |
| Answer» C. Heat | |
| 481. |
In an optical fibre the signal is transmitted |
| A. | in a straight line path |
| B. | In a curved path |
| C. | due to total internal reflection |
| D. | Due to refraction |
| Answer» E. | |
| 482. |
In beta decay what is emitted |
| A. | electron |
| B. | proton |
| C. | neutron |
| D. | All of the above |
| Answer» B. proton | |
| 483. |
In Force equation, F is equal to_x005F_x000D_ |
| A. | ma |
| B. | mv |
| C. | u+at |
| D. | mgh |
| Answer» B. mv | |
| 484. |
In case of uniform circular motion, the acceleration is |
| A. | Variable in magnitude but constant in direction |
| B. | Constant in magnitude and directed radially inwards |
| C. | Variable in magnitude but tangential to the circle |
| D. | Zero |
| Answer» B. Constant in magnitude and directed radially inwards | |
| 485. |
In a vacuum, all electromagnetic waves have the same |
| A. | Velocity |
| B. | Wavelenth |
| C. | Frequency |
| D. | All the above |
| Answer» B. Wavelenth | |
| 486. |
In a streamline flow, ________ at every point in the fluid remains same. |
| A. | force |
| B. | pressure |
| C. | pressure |
| D. | speed |
| Answer» D. speed | |
| 487. |
In a sound wave compressions are regions where density _________________________ |
| A. | as well as pressure is high |
| B. | as well as pressure is low |
| C. | is high and pressure is low |
| D. | is low and pressure is high |
| Answer» B. as well as pressure is low | |
| 488. |
In a qualitative way, the tendency of undisturbed objects to stay at rest or to keep moving with the same velocity is called _________. |
| A. | force |
| B. | acceleration |
| C. | friction |
| D. | inertia |
| Answer» E. | |
| 489. |
In a projectile motion, a large angle with the horizontal produces ______. |
| A. | flat trajectory |
| B. | curve trajectory |
| C. | straight trajectory |
| D. | high trajectory |
| Answer» E. | |
| 490. |
In a parallel circuit, if one electrical appliance stops working due to some defect, then all the other appliances: |
| A. | will keep working double of what they did |
| B. | will keep working half of what they did |
| C. | will not work |
| D. | will work normally |
| Answer» E. | |
| 491. |
In a longitudinal wave, the distance between two consecutive compressions and two consecutive refractions is called |
| A. | Matter |
| B. | Wavelength |
| C. | Magnitude |
| D. | Energy |
| Answer» C. Magnitude | |
| 492. |
In a hydro-electric power station ultimately which energy is converted into electrical energy? |
| A. | Mechanical energy |
| B. | Potential energy |
| C. | Heat energy |
| D. | Kinetic energy |
| Answer» E. | |
| 493. |
In a freezer ice cubes will be formed more quickly in trays made of |
| A. | rubber |
| B. | plastic |
| C. | aluminium |
| D. | wood |
| Answer» D. wood | |
| 494. |
In a concave mirror when the object is placed at infinity which of the following applies to the image? |
| A. | Real, inverted, highly enlarged image at center of curvature (C) |
| B. | Real, inverted image of the same size at centre of curvature (C) |
| C. | Real, inverted, diminished image between centre of curvature ('and principal focus (F) |
| D. | Real, inverted, highly diminished image at focus |
| Answer» E. | |
| 495. |
In a Cinema hall, the distance between the projector and the screen is increased by 2%. Then the intensity of illumination on the screen is |
| A. | decreased by 2% |
| B. | decreased by 4% |
| C. | increased by 2% |
| D. | increased by 4% |
| Answer» C. increased by 2% | |
| 496. |
In a bipolar junction transistor |
| A. | all the three regions (the emitter, the base and the collector) have equal concentrations of impurity |
| B. | the emitter has the least concentration of impurity |
| C. | the collector has the least concentration of impurity |
| D. | the base has the least concentration of impurity |
| Answer» E. | |
| 497. |
In a __________________ wave particles of the medium vibrate in a direction parallel to the direction of wave propagation._x005F_x000D_ |
| A. | transverse |
| B. | longitudinal |
| C. | surface |
| D. | field |
| Answer» C. surface | |
| 498. |
In a _________ the wave particles of the medium vibrate in a direction perpendicular to the direction of wave propagation |
| A. | longitudinal |
| B. | rolling |
| C. | transverse |
| D. | field |
| Answer» D. field | |
| 499. |
In _____________ motion of a body its velocity varies with time. |
| A. | uniform |
| B. | linear |
| C. | equilibrium |
| D. | non-uniform |
| Answer» E. | |
| 500. |
If V/I is a constant, it is called:_x005F_x000D_ |
| A. | Potential difference |
| B. | Current |
| C. | Coulomb |
| D. | Resistance |
| Answer» E. | |