Pre-ecat 2019 (Group: F.Sc Pre Engineering)

100 Questions | Total Attempts: 229

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Pre-ecat 2019 (Group: F.Sc Pre Engineering) - Quiz

Assalam O Alikum! Dear member, You're about to start the "Pre-ECAT Online MOCK Test 2019". Therefore, before starting the test please ensure that you have selected the Correct ECAT combination test (Physics/Chemistry/English/Mathematics) and you've also prepared well and covered all topics in Physics, Mathematics, Chemistry and English, because this test is actually based on your concepts and important knowledge extracted only from textbooks. However, English is utterly based on your mental caliber which consists of two comprehension passage included as per ECAT Pattern. Please read the following instructions carefully: First Portion is from "Physics", which contains 30 MCQs (Question. 0


Questions and Answers
  • 1. 
    Reading Comprehension (Question 91-95) Philosophy of Education is a label applied to the study of the purpose, process, nature and ideals of education. It can be considered a branch of both philosophy and education. Education can be defined as the teaching and learning of specific skills, and the imparting of knowledge, judgment and wisdom, and is something broader than the societal institution of education we often speak of. Many educationalists consider it a weak and woolly field, too far removed from the practical applications of the real world to be useful. But philosophers dating back to Plato and the Ancient Greeks have given the area much thought and emphasis, and there is little doubt that their work has helped shape the practice of education over the millennia. Plato is the earliest important educational thinker, and education is an essential element in "The Republic" (his most important work on philosophy and political theory, written around 360 B.C.). In it, he advocates some rather extreme methods: removing children from their mothers' care and raising them as wards of the state, and differentiating children suitable to the various castes, the highest receiving the most education, so that they could act as guardians of the city and care for the less able. He believed that education should be holistic, including facts, skills, physical discipline, music and art. Plato believed that talent and intelligence is not distributed genetically and thus is be found in children born to all classes, although his proposed system of selective public education for an educated minority of the population does not really follow a democratic model. Aristotle considered human nature, habit and reason to be equally important forces to be cultivated in education, the ultimate aim of which should be to produce good and virtuous citizens. He proposed that teachers lead their students systematically, and that repetition be used as a key tool to develop good habits, unlike Socrates' emphasis on questioning his listeners to bring out their own ideas. He emphasized the balancing of the theoretical and practical aspects of subjects taught, among which he explicitly mentions reading, writing, mathematics, music, physical education, literature, history, and a wide range of sciences, as well as play, which he also considered important. During the Medieval period, the idea of Perennialism was first formulated by St. Thomas Aquinas in his work "De Magistro". Perennialism holds that one should teach those things deemed to be of everlasting importance to all people everywhere, namely principles and reasoning, not just facts (which are apt to change over time), and that one should teach first about people, not machines or techniques. It was originally religious in nature, and it was only much later that a theory of secular perennialism developed. During the Renaissance, the French skeptic Michel de Montaigne (1533 - 1592) was one of the first to critically look at education. Unusually for his time, Montaigne was willing to question the conventional wisdom of the period, calling into question the whole edifice of the educational system, and the implicit assumption that university-educated philosophers were necessarily wiser than uneducated farm workers, for example.
  • 2. 
    Physics: (Question 01 to 30)  The Equation of state of some gases can be expressed as  . Here P is the pressure, V is volume, T is absolute temperature and a,b,R are constants. Then Dimensions of 'a' and 'b' respectively are:
    • A. 

      [ML5T-2] and [L-3

    • B. 

      [M0L-5T-2] and [L3]

    • C. 

      [ML5T-2] and [L3]

    • D. 

      [ML6T-2] and [L3]

  • 3. 
    Two forces of magnitudes 12 N and 13 N act on a body. Which one of the following is not possible resultant of these two vectors?
    • A. 

      1 N

    • B. 

      20 N

    • C. 

      25 N

    • D. 

      31 N

  • 4. 
    The period of oscillation of a simple pendulum is given by  whereas L is about 100 cm and is known to have 1 mm accuracy. This period is about 2 s. The time for 100 oscillations is measured by a stop watch of least count 0.1 s. The percentage error in 'g' is: 
    • A. 

      0.1%

    • B. 

      1%

    • C. 

      0.2%

    • D. 

      0.8%

  • 5. 
    A 50 grams bullet is moving with velocity 10 meter per second strikes a block of mass 950 grams at rest and gets embedded in it. The loss in Kinetic energy will be:
    • A. 

      100%

    • B. 

      95% 

    • C. 

      5% 

    • D. 

      50% 

  • 6. 
    Two cars, initially next to each other and at rest, accelerate in the same straight line at different uniform rates. After 3 seconds , they are x meters. If they continue to accelerate , at same rate how far apart will they be 6 seconds after they started?
    • A. 

      Y=24 x

    • B. 

      Y=x

    • C. 

       y=4 x

    • D. 

      Y=12 x

  • 7. 
    A mixture of two gas at constant temperature contains the molecules of two kinds. The first kind of mass mand root mean square speed cand the second molecule of mass m2 and rms speed c2. The ratio of  is:
    • A. 

      M1/m2

    • B. 

      M2/m1

    • C. 

    • D. 

  • 8. 
    For the velocity-time graph, as shown in the figure below, the total distance covered by a body in all seven seconds will be:
    • A. 

      20 meters

    • B. 

      60 meters

    • C. 

      40 meters

    • D. 

      80 meters

  • 9. 
    A shell is fired at angle of  45 degrees above the ground with the initial velocity of 100 meter per second . It will hit the ground, assuming g=10 meter per square second, after about;
    • A. 

      7 seconds

    • B. 

      10 seconds

    • C. 

      14 seconds

    • D. 

      20 seconds

  • 10. 
    The v-t graph of a moving object is given in figure. The maximum acceleration is
    • A. 

      1 meter per square second

    • B. 

      2 meter per square second

    • C. 

      3 meter per square second

    • D. 

      6 meter per square second

  • 11. 
    A boy is standing near a building. Eventually, a bomb is blasted at the distant place from the observer. Why does the boy feel tremor before it hears the sound of blast? 
    • A. 

      Speed of waves are faster in air than that of the speed in the ground

    • B. 

      Elastic modulus of solid is much greater than that of the elastic modulus of gas

    • C. 

      Speed of sound in the solid is  much lesser than that of the speed in the air

    • D. 

      Both A & B

  • 12. 
    Three particles A,B and C are thrown from the top of a tower with the same speed. A is thrown up, B is thrown down and C is thrown horizontally. They hit the ground with speeds VA, VB, and Vrespectively;
    • A. 

      VA=VB=VC

    • B. 

      VA=VB>VC

    • C. 

      VB>VC>VA

    • D. 

      VA>VB=VC

  • 13. 
    A weight lifter lifts 300 kilograms from the ground to height of 2 meters in 3 seconds. The average power generated by him is:
    • A. 

      5880 watts 

    • B. 

      4410 watts

    • C. 

      2205 watts

    • D. 

      1960 watts

  • 14. 
    Two satellites of masses m1 and m(m1 > m2) are revolving around the earth in circular orbits of radii r1 and r2 (r1 > r2) respectively. Which of the following statements is true regarding their speeds v1 and  v2  ?
    • A. 

      V1=v2

    • B. 

      V1 > v2

    • C. 

      V< v2

    • D. 

      V1/r= v2/r2

  • 15. 
    If the critical angle for the total internal reflection from a medium to vacuum is 30°. The velocity of light in the medium is:
    • A. 

      3 × 108 m/s

    • B. 

      1.5 × 108 m/s

    • C. 

      6 × 108 m/s

    • D. 

       × 10m/s

  • 16. 
    In the following fig. is shown the flow of liquid through a horizontal pipe. Three tubes A, B and C are connected to the pipe. The radii of the tubes A, B and C at the junction are respectively 2 cm 1 cm and 2 cm, it can be said that the
    • A. 

      Height of the liquid in the tube A is maximum

    • B. 

      Height of the liquid in the tubes A and B is the same

    • C. 

      Height of the liquid in all the three tubes is the same

    • D. 

      Height of the liquid in the tubes A and C is the same

  • 17. 
    The maximum percentage efficiency of engine operating between 227°C and 7 °C? 
    • A. 

      56%

    • B. 

      40%

    • C. 

      44%

    • D. 

      50%

  • 18. 
    The displacement of a particle executing Simple Harmonic motion is half of its magnitude. The fraction of its Kinetic energy will be:
    • A. 

      2/3

    • B. 

      1/3

    • C. 

      3/4

    • D. 

      1/2

  • 19. 
    A motor cycle running at 130 km/hr sounds a siren of 2 kHz frequency while chasing a car running at 150 km/h. The apparent frequency of the siren heard by the car driver will be:
    • A. 

      Less than 2 kHz

    • B. 

      Equal to 2 kHz

    • C. 

      Greater than 2 kHz

    • D. 

      The siren will not heard by the car driver

  • 20. 
    If 15/16 of the the radioactive element decays in 8 minutes the half life of the radioactive element is:
    • A. 

      8 min

    • B. 

      4 min

    • C. 

      2 min

    • D. 

      12 min

  • 21. 
    A thermistor with positive temperature is used to measure the temperature in an oven. When the temperature of the oven increases, the value of resistance of thermistor:
    • A. 

      Decreases

    • B. 

      Incresaes

    • C. 

      Remains unchanged

    • D. 

      None of the above

  • 22. 
    The relationship between X and Y in the following diagram
    • A. 

      Y=X

    • B. 

      Y'= X

    • C. 

      Y=X'

    • D. 

      Both B & C

  • 23. 
    The current in a resistor is 8.0 mA. How many number of electrons flows through the resistor in 0.020 seconds?
    • A. 

      1  electrons

    • B. 

      1 electrons

    • C. 

      1

    • D. 

      1

  • 24. 
    You have 15 capacitors available with you, each of 15 nF. You need a capacitance of around 150 nF in a circuit. You can achieve this value by connecting:
    • A. 

      10 capacitors in series

    • B. 

      10 capacitors in parallel

    • C. 

      12 capacitors in series

    • D. 

      8 capacitors in parallel

  • 25. 
    Three similar light bulbs are connected to a constant DC supply as shown in the diagram. Each bulb operates at normal brightness and an ammeter of a negligible resistance registers a steady current. One more similar bulb is connected in parallel to the three bulbs. What happens to the ammeter reading and the brightness of the four bulbs?
    • A. 

      Ammeter reading increases and brightness also increases

    • B. 

      Ammeter reading increases and brightness remains unchanged

    • C. 

      Ammeter reading remains unchanged; bulb brightness remains unchanged

    • D. 

      Ammeter reading decreases and brightness remains unchanged