GATE Practice Question and Answer

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Answer : 4. "A, B, P, U, S"
Explanation :

Answer: D) A, B, P, U, S Explanation: From the given information;  Members   Sex    Profession        A         M          Advocate     Q         F           Doctor     B         M          Advocate     R         F           Advocate     C         M          Doctor     S         F           Doctor     D         M          Doctor     T         F           Teacher     E         M          Teacher     U         F           Teacher     P         F           Doctor  Answer (D)  From option (D) A and B are two male advocates, P and S are two female doctors and u is female teacher.

Q: In how many ways word of 'GLACIOUS' can be arranged such that 'C' always comes at end? 2723 0

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    3360
    Correct
    Wrong
  • 2
    5040
    Correct
    Wrong
  • 3
    720
    Correct
    Wrong
  • 4
    1080
    Correct
    Wrong
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Answer : 2. "5040"
Explanation :

Answer: B) 5040 Explanation: Given word is GLACIOUS has 8 letters. => C is fixed in one of the 8 places Then, the remaining 7 letters can be arranged in 7! ways = 5040.

Q: What number should replace the question mark? 125, 138, 164, ?, 255 2720 0

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    189
    Correct
    Wrong
  • 2
    197
    Correct
    Wrong
  • 3
    200
    Correct
    Wrong
  • 4
    203
    Correct
    Wrong
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Answer : 4. "203"
Explanation :

Answer: D) 203 Explanation: The given number series is 125,   138,   164,   ?,   255   125   125 + 13x1 = 138   138 + 13x2 = 164   164 + 13x3 = 203   203 + 13x4 = 255       Hence, the missing number in the series is 203.

Q: A Conical tent was erected by the army at a base camp with height 3 m and base diameter 10 m. If every person requires 3.92 cu.m air, then how many persons can be seated in that tent approximately? 2717 0

  • 1
    20
    Correct
    Wrong
  • 2
    19
    Correct
    Wrong
  • 3
    17
    Correct
    Wrong
  • 4
    22
    Correct
    Wrong
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Answer : 1. "20"
Explanation :

Answer: A) 20 Explanation: Given height of the conical tent = 3 m Diameter = 10 => Radius = D/2 = 10/2 = 5 m  Now, as the tent is in the conical form Volume of the conical tent = πr2h3  => (22 x 5 x 5 x 3) / (7 x 3)  = 22 x 25/7  = 78.54 cu.m  Given each person requires 3.92 cu.m of air  => Number of persons can be seated in the tent = 78.54/3.92 = 20.03 =~ 20

Q: A box contains 90 screws each of 100 gms and 100 bolts each of 150 gms. If the entire box weighs 35.5 kg, then the weight of the empty box is ? 2715 0

  • 1
    10.5 kgs
    Correct
    Wrong
  • 2
    12 kgs
    Correct
    Wrong
  • 3
    9.6 kgs
    Correct
    Wrong
  • 4
    11.5 kgs
    Correct
    Wrong
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Answer : 4. "11.5 kgs"
Explanation :

Answer: D) 11.5 kgs Explanation: Screws weight = 90x100 = 9000gmsbolts weight = 100 x 150 = 15000gmsweight = screws + bolts => 24000 gms =>24 kgGiven entire box weight = 35.5kgempty box = entire box weight - weight => 35.5kg - 24kg => 11.5kgso the empty box is 11.5kg.

Q: Velocitation is the tendency to 2709 0

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    be traveling at a speed that is faster than perceived
    Correct
    Wrong
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    be traveling at a speed that is slower than perceived
    Correct
    Wrong
  • 3
    Both A & B
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 1. "be traveling at a speed that is faster than perceived"
Explanation :

Answer: A) be traveling at a speed that is faster than perceived Explanation: Velocitation is a phenomenon caused by driving for long periods at high speeds. A driver may experience velocitation when coming off of the highway; the change in speed makes him or her think that the car is going much slower than it actually is.   Velocitation is the tendency to be traveling at a speed that is faster than perceived.

Q: Which of the following statements is most accurate regarding infection with parvovirus B19? 2704 0

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    Parvovirus B19 causes severe anemia because it preferentially infects erythrocyte precursors
    Correct
    Wrong
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    Parvovirus B19 can cause hydrops fetalis via transplacental infection of a fetus in a seropositive mother
    Correct
    Wrong
  • 3
    Parvovirus B19 can be diagnosed by detection of viral RNA using PCR or hybridization assays
    Correct
    Wrong
  • 4
    Parvovirus B19 replicates in the host cell nucleus utilizing a virally encoded DNA polymerase to create a double- stranded DNA intermediate
    Correct
    Wrong
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Answer : 1. "Parvovirus B19 causes severe anemia because it preferentially infects erythrocyte precursors"
Explanation :

Answer: A) Parvovirus B19 causes severe anemia because it preferentially infects erythrocyte precursors Explanation: Parvovirus B19 causes severe anemia because it preferentially infects erythrocyte precursors.   a. Parvovirus B19 binds preferentially to the erythrocyte blood group P antigen on erythroid precursor cells. Answers B, C, D are incorrect: b. after entry the single-stranded viral DNA genome is transported to the cell nucleus where the host DNA polymerase synthesizes the complimentary DNA strand. c. Parvovirus B19 infection can be diagnosed by direct detection of viral DNA not RNA. d. the fetus of a seropositive mother is protected from infection by maternal circulating antibodies.

Q: Points that lie on the same line are called 2704 0

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    Congruent
    Correct
    Wrong
  • 2
    Coplanar points
    Correct
    Wrong
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    Collinear points
    Correct
    Wrong
  • 4
    None
    Correct
    Wrong
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Answer : 3. "Collinear points"
Explanation :

Answer: C) Collinear points Explanation: Points that lie on the same line are called Collinear points. And that points lie on the same plane are called Coplanar points.

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