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This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The family of desert locust is a. Acrididae b. Gryllidae c. Tetrigidae d. Gryllotelpidae |
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Answer» The family of desert locust is Acrididae. |
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| 2. |
Damselflies belong to the suborder _________a. Anisopterab. Zygopterac. Anisozygopterad. None. |
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Answer» Damselflies belong to the suborder Zygoptera. |
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| 3. |
Human disease pathogens are transmitted by which order? a. Hymenoptera b. Thysanoptera c. Diptera d. All of these |
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Answer» Human disease pathogens are transmitted by Diptera. |
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| 4. |
Odonata and Plecoptera are similar because both have: a. Aquatic nymphs b. Endopterygote development c. Paleopterous wings d. All of these |
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Answer» Odonata and Plecoptera are similar because both have Aquatic nymphs. |
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| 5. |
Acrididae belongs to the suborder _________ a. Ensifera b. Caelifera c. Blattaria. d. None. |
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Answer» Acrididae belongs to the suborder Caelifera. |
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| 6. |
Secondary Male genitalia present in a. Odonata b. Plecopterac. Blatteria d. Mentodia |
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Answer» Secondary Male genitalia present in Odonata |
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| 7. |
In Orthoptera, specialised _______ organs are present. a. Auditoryb. Stridulatoryc. Auditory and stridulatoryd. None |
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Answer» c. Auditory and stridulatory |
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| 8. |
Orthoptera is divided into suborder. a. 2 b. 3 c. 4 d. None |
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Answer» Orthoptera is divided into suborder 2. |
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| 9. |
Forficulidae belongs to the order _________a. Zoraptera b.Orthoptera c. Dermaptera d. None. |
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Answer» Forficulidae belongs to the order Dermaptera. |
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| 10. |
Locusts belong to the ordera. Plecoptera b. Orthopterac. Embiopterad. None |
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Answer» b. Orthoptera |
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| 11. |
Tegmina presents in a. Orthoptera b. Diptera c. Homoptera d. Collembola |
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Answer» Tegmina presents in Orthoptera. |
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| 12. |
He lost his ________ and threw a book at me. A) feeling B) mood C) sense D) spirit E) temper |
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Answer» Correct option is E) temper |
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| 13. |
When they saw a POLICEMAN they stopped in the middle of the STREET. A) his/him B) him/it C) her/its D) he/it E) him/ours |
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Answer» Correct option is B) him/it |
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| 14. |
The policeman told the people to ______ when they stopped to watch the accident. A) hurry up B) get away C) go off D) move along |
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Answer» Correct option is D) move along |
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| 15. |
He lost his ________ when the policeman stopped him. A) temper B) language C) spirit D) character E) pride |
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Answer» Correct option is A) temper |
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| 16. |
What is anthropology? |
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Answer» It is a branch of knowledge that studies human culture and the evolutionary levels of humans/ Anthropos in Greek means man and logos means study. Anthropology is the study of various aspects of humans within past and present societies. |
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| 17. |
The policeman stopped him when he was driving home and ________ him of speeding A) charged B) accused C) blamed D) warned E) arrested |
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Answer» Correct option is B) accused |
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| 18. |
Give two methods for the preparation of colloids. |
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Answer» The two method for the preparation of collids are- (i) Condnsation method- In this type of methods particles of atoms or molecules size are induced to combine to form aggregates having collidal dimensions. (ii) Dispersion method- In this method large particle of the substance are broken down into particles of collidal size. |
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| 19. |
When can the students ________ for next year’s evening classes? A) assist B) enroll C) join D) inscribe E) subscribe |
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Answer» Correct option is B) enroll |
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| 20. |
Students are expected to ________ their classes regularly. A) assist B) frequent C) attend D) follow E) present |
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Answer» Correct option is C) attend |
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| 21. |
Differentiate between DNA and RNA |
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Answer» There are two types of nucleic acid- (a) deoxyribonucleic acid (DNA) (b) ribonucleic acid (RNA) The main difference between these two acids are as below
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| 22. |
He asked us if we would ________ to share a room. A) accept B) consider C) agree D) admit E) approve |
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Answer» Correct option is C) agree |
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| 23. |
The film was a great ______. It made 75 million dollars. A) hope B) money C) success D) bank |
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Answer» Correct option is C) success |
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| 24. |
What about six o’clock. Will that time ______ you? A) match B) suit C) approve D) agree |
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Answer» Correct option is B) suit |
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| 25. |
The average age of a woman and her daughter is 42 years. The ratio of their ages is 2:1. What is the daughter's age? (a) 28 years (b) 48 years (c) 52 years (d) 32 years (e) None of these |
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Answer» (a) Let the age of woman be 2x years and that of her daughter be x years. According to the question, 2x + x = 2 × 42 or, 3x = 84 or, x = 84/3 =28 Daughter's age = 28 years |
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| 26. |
What increases when the take up reel rotates at a high speed?(a) Front tension(b) Above tension(c) Back tension(d) Beneath tension |
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Answer» Right option is (a) Front tension Easiest explanation: Among front tension, above tension, back tension and beneath tension, front tension is found to increase when the take up wheel rotates at a high speed. |
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| 27. |
The number `n` for which number of dissimilar terms in the expansion of `(1+x+x^(2)+x^(3))^(n)` is equal to number of terms in the expansion of `(x+y+z)^(n)` is `(nepsilonN)` |
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Answer» Correct Answer - 3 Number of terms in the exp. Of `(1+x+x^(2)+x^(3))^(n)=3n+1` Number of terms in the exp. Of `(x+y+z)^(n)=^(n+2)C_(2)` `implies^(n+2)C_(2)=3n+1` `(n+2)(n+1)=6n+2:n^(2)+3n+2=6n+2` `n^(2)=3nimpliesn=0` or `3, because n in N impliesn=3` |
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| 28. |
If `y=(x^x)^x` then `(dy)/(dx)` isA. `(x^(x))^(x)(1+2logx)`B. `(x^(x))^(x)(1+logx)`C. `x(x^(x))^(x)(1+2logx)`D. `x(x^(x))^(x)(1+logx)` |
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Answer» Correct Answer - C `y=(x^(x))^(x)implieslog_(e)y=xlog_(e)(x^(x))(x)=x^(2)log_(e)x` `implies1/y (dy)/(dx)=x+2x log_(e)x` `:.(dy)/(dx)=x(x^(x))^(x)(1+2log_(e)x)` |
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| 29. |
the derivative of `y=(1-x)(2-x)..........(n-x)` at `x=1` is equal toA. `0`B. `(-1)(n-1)!`C. `n!-1`D. `(-1)^(n-1)(n-1)!` |
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Answer» Correct Answer - B `(dy)/(dx)=[(2-x)(3-x)…(n-x)+(1-x)(3-x)…….` `(n-x)……_(1-x)(2-x)…..(n-1-x)]` At `x=1, (dy)/(dx)=-[(n-1)!+0+0+…….+0]` `(dy)/(dx)=(-1)(n-1)!` |
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| 30. |
The expression `[x+(x^(3)-1)^((1)/(2))]^(5)+[x-(x^(3)-1)^((1)/(2))]^(5)` is a polynomial of degree |
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Answer» Correct Answer - 7 let `(x^(3)-1)^((1)/(2))=tbecause(x+t)^(5)+(x-t)^(5)` where `x^(3)-1=t^(2)` expansion is `x^(5)` term Replacing term t by `x^(3)-1` in the expansion and simplification we get the polynomial as power 7. |
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| 31. |
If `lim_(xrarr0)((cotx)(e^(x)-1)-cos^(2)x)/(sinx)=K,Kepsilonr` then find the value of `[K+11/7]`, where `[.]` represents the greatest integer function. |
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Answer» Correct Answer - 2 `lim_(xrarr0)(cotx(e^(x)-1)-cos^(2)x)/(sinx)` `=lim_(xrarr0)(e^(x)-1-cosxsinx)/(sin^(2)x)` `=lim_(xrarr)(e^(x)-1-1/2sin2x)/(x^(2))` `=lim_(xrarr0)([x+(x^(2))/2-1/2(2x-((2x)^(3))/(3!))])/(x^(2))=1//2=k` `implies[K+11/7]=[29/14]=2` |
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| 32. |
Number of solutions of the equation `sec^(-1)((2)/((1)/(x)+x))+picospix=0` |
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Answer» Correct Answer - 1 `sec^(-1)((2)/((1)/(x)+x))=sec^(-1)((2x)/(1+x^(2)))` `because` domain of `sec^(-1)((2)/((1)/(x)+x))` is `x=1,-1` `x=1` does not satisfy if `x=-1` then `sec^(-1)((2)/((1)/(x)+x))+picosx` `=sec^(-1)(-1)+picos(-pi)=pi-pi=0` |
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| 33. |
A Delta is formed by the lines whose combined equation is given by `(x+y-9)(xy-2y-x+2)=0` if the circumcentre of Delta is `(h,k)` then value of `|h-k|` is |
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Answer» Correct Answer - 1 The sides are `x+y-9=0` and `y=1` `because` circumcentre is `(5,4)` `because|h-k|=1` |
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| 34. |
The curve y = ax4 + bx2 with ab > 0 (a) has no horizontal tangent (b) is concave up (c) is concave down(d) has no points of inflection |
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Answer» (d) has no points of inflection |
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| 35. |
The tangent to `y=ax^(2)+bx+c` at `(1,-2)` is parallel to the normal at the point `(-2,2)` on the same curve. Find the value of `3a-b+c` |
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Answer» Correct Answer - 2 This curve passes through points `(1,2) & (-2,2)` Therefore `a+b+c=2` .(i) `4a-2b+c=2` .(ii) `impliesa-b=0` `because3a-b+c=2a+c=a+b+c=2` |
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| 36. |
The ________ gave the new film a very good review. A) critics B) reporters C) announcers D) interviewers E) translators |
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Answer» Correct option is A) critics |
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| 37. |
The ratio of Ah efficiency to Wh efficiency of a lead-acid cell is : (a) always less than one (b) just one (c) always greater than one (d) either (a) or (b) |
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Answer» (c) always greater than one |
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| 38. |
Active materials of a lead-acid cell are : (a) lead peroxide (b) sponge lead (c) dilute sulphuric acid (d) all the above |
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Answer» (d) all the above |
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| 39. |
During the charging of a lead-acid cell : (a) its cathode becomes dark chocolate brown in colour (b) its voltage increases (c) it gives out energy (d) specific gravity of H2SO4 is decreased |
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Answer» (b) its voltage increases |
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| 40. |
Trickle charging of a storage battery helps to : (a) prevent sulphation (b) keep it fresh and fully charged (c) maintain proper electrolyte level (d) increase its reserve capacity |
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Answer» (b) keep it fresh and fully charged |
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| 41. |
Binary addition (1 + 1) is equal to - (A) 1 (B) 0 (C) 10 (D) 11 |
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Answer» Correct answer is (B) 0 |
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| 42. |
Boolean expression for three input AND gate is1. A . B. C = D2. A + B + C = D3. \(\bar A.\bar B.\bar C = \bar D\)4. \(\bar A + \bar B + \bar C = \bar D\) |
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Answer» Correct Answer - Option 1 : A . B. C = D A . B. C = D is the expression for three input AND gate. |
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| 43. |
Figure shows an electrical calorimeter to determine specific heat capacity of an unknown liquid, First of all, the mass of empty calorimeter (a copper container) is measured and suppose it is `m_(1)`. Then the unknown liquid is poured in it. Now the combined mass of calorimeter+liquid system is measured and let it be `m_(2)`. So the mass of liquid is `(m_(2)-m_(1))`. Initially both were at room temperature (`theta_(0)`). Now a heater is immeresed in if for time interval `t`. The voltage drop across the heater is `V` and current passing through it is `I`. Due to heat supplied, the temperature of both the liquid and calorimeter will rise simultaneously. After `t sec`, heater was switched off, and final temperature is `theta_(r)`. If there is no heat loss to surroundings. Heat supplied by the heater=Heat absorbed by the liquid+heat absorbed by the calorimeter `(VI)t=(m_(2)-m_(1))S_(1)(theta_(f)-theta_(0))+m_(1)S_(c)(theta_(f)-theta_(0))` The specific heat of the liquid `S_(1)=(((VI)t)/(theta_(f)-theta_(0))-m_(1)S_(c))/((m_(2)-m_(1)))` Radiation correction: There can be heat loss to environment. To compensate this loss, a correction is introduced. Let the heater was on for `t sec`, and then it is switched off. Now the temperature of the mixture falls due to heat loss to environment. The temperature of the mixture is measured `t//2 sec`. after switching off. Let the fall in temperature during this time is `varepsilon` Now the corrected final temperature is taken as `theta_(f)=theta_(f)+varepsilon` In this experiment voltage across the heater is `100.0V` and current is `10.0A`, and heater was switched on for `t=700.0 sec`. Initially all elements were at room temperature `theta_(@)=10.0^(@)C` and final temperature was measured as `theta_(f)=73.0^(@)C`. Mass of empty calorimeter ws `1.0 kg` and the combined mass of calorimeter + liquid is `3.0 kg`. The specific heat capacity of the calorimeter `=3.0xx10^(3)J//kg^(@)C`. The falls in temperature `350` second after switching off the heater was `7.0^(@)C`. Find the specific heat capacity of the unknown liquid in proper significant figures.A. `3.5xx10^(3)J//kg^(@)C`B. `3.50xx10^(3)J//kg^(@)C`C. `4.0xx10^(3)J//kg^(@)C`D. `3.500xx10^(3)J//kg^(@)C` |
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Answer» Correct Answer - A `S_(l)=(((100.0)(10.0)(700.0))/(80.0-10.0)-(1.0)(3.0xx10^(3)))/(3.0-1.0)` `=3.5xx10^(3)J//kg^(@)C` According to addition and multiplication of `S.F` |
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| 44. |
Boolean expression for OR gate is(A) \(\bar{A} = A\)(B) \(C = \overline{AB}\)(C) A.B = 0(D) A + B = C |
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Answer» Correct answer is (D) A + B = C |
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| 45. |
Unit of magnetic moment is -(A) JT-1 (B) JT-2 (C) JT (D) J-1T |
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Answer» Correct answer is (A) JT-1 |
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| 46. |
Permeability is -(A) μ = B/H(B) μ = H/B(C) μ = BH(D) μ = BH/2 |
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Answer» Correct answer is (A) μ = B/H |
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| 47. |
Assertion (A): Least count of all screw based instruments is same. Reason (R ): Least count for all screw based instruments are found using the ratio of pitch per division of circular scale.A. Assertion is True, Reason is True, Reason is correct explanation for Assertion.B. Assertion is True, Reason is True, Reason is not correct explanation for Assertion.C. Assertion is True , Reason is False.D. Assertion is False, Reason is True. |
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Answer» Correct Answer - D Assertion is false since it depends on the scale used. Reason is true by concept |
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| 48. |
Which of the following is correct for angle of dip (δ) ?(A) tan δ = BV/BH(B) tan δ = BH/BV(C) tan δ = BV . BH(D) tan δ = (BV . BH)2 |
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Answer» Correct answer is (A) tan δ = BV/BH |
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| 49. |
The value of angle of dip at the earth’s magnetic pole is - (A) 0° (B) 45° (C) 90° (D) 180° |
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Answer» Correct answer is (C) 90° |
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| 50. |
Middle piece of mammalian sperm contains(a) nucleus(b) vacuole(c) mitochondria(d) centriole |
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Answer» Answer (d) centriole |
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