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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. |
Jack ________ his thick coat because it was snowing. A) puts on B) put on C) takes on D) took on |
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Answer» Correct option is B) put on |
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| 2. |
We ____ shelter until it stops snowing, or we’ll freeze. A) had better B) had had C) had rather to D) would better |
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Answer» Correct option is A) had better |
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| 3. |
Angela _____ Thai food but Frank _____ . A) have eaten / hasn’t B) has ate / hasn’t C) have ate / hasn’t D) has eaten / hasn’t |
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Answer» Correct option is D) has eaten / hasn’t |
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| 4. |
A: What _____ you _____? B: I’m a lecturer. A) do / do B) are / do C) is / do D) do / doing |
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Answer» Correct option is A) do / do |
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| 5. |
I don’t ______ study, but I have to. A) want to B) want C) to want D) wanted |
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Answer» Correct option is A) want to |
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| 6. |
The weather ______ sunny yesterday morning. A) is B) was C) are D) did |
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Answer» Correct option is B) was |
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| 7. |
A: What _____ she ____ now? B: I don’t know. A) does / do B) do / do C) is / doing D) is / do |
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Answer» Correct option is C) is / doing |
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| 8. |
"Water down" means to _____. A) make stronger B) have a beer C) weaken |
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Answer» Correct option is C) weaken |
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| 9. |
The cars wait until the traffic ______ turn green. A) railings B) signs C) crossing D) lights |
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Answer» Correct option is D) lights |
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| 10. |
The "way the wind blows" is _____. A) how things were B) the way things are C) how things are going to be |
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Answer» Correct option is B) the way things are |
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| 11. |
She was crossing the road when she ______ the package. A) drops B) dropped C) was dropping D) has dropped |
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Answer» Correct option is B) dropped |
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| 12. |
The dentist ___ two of his teeth. One of them ___ quite good. A) pulls out/are B) pull out/was C) pulled out/was D) pull out/was E) pulled out/were |
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Answer» Correct option is C) pulled out/was |
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| 13. |
An infinite thread of charge density `lambda` lies along z-axis. The potential difference between points `A (4, 3, 4)` and `(3, 4, 0)` is A. `(lambda)/(2pi in_(0))In((sqrt41)/(5))`B. `(lambda)/(2pi in_(0))In(5)`C. zeroD. `(lambda)/(2pi in_(0))` |
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Answer» Correct Answer - C Equipotential surfaces are coaxial cylinders, therefore `(4, 3, 4)` and `(3, 4, 0)` lie on equipotential surface. |
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| 14. |
A cannon-ball is fired with a speed `50 m//sec` with respect to ground from one end of a stationary railroad car which rests on a smooth track. The ball collides with opposite wall and stops. How much distance did the railroad car cover just before the collision? Given that the ratio of the mass of the ball to that of the railroad car is `1//99` and the length of the car is `50m` A. `2 m`B. `(1)/(2) m`C. `0 m`D. cannot be calculated from acts |
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Answer» Correct Answer - B CM will be at rest, `m(50-x) =99 m(x)` `rArr x=(1)/(2)m` |
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| 15. |
Moldydenum `("At. mass=96g//mol"^(-1))` crystallizes as bcc crystal. If density of crystal is `10.3g//cm^(3)`, then radius of Mo atoms `(use N_(A)= 6 xx 10^(23))`:A. 11pmB. 314pmC. 135.96pmD. None of these |
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Answer» Correct Answer - C `d=(ZxxM)/(a^(3)xxN_(A))` `10.3=(2xx96)/(a^(3)xx6xx10^(23))` `a=3.14xx10^(-8)cm=314"pm"` `r=sqrt(3a)/(4)=135.96 "pm"` |
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| 16. |
Waves of frequencies v and v+4 emanating from two sources of sound are superposed.what will you observe |
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Answer» Beats with frequency 4Hz are produced. |
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| 17. |
The radius of a divaent cation `A^(2+)` is 94pm and of divalent anion `B^(2-)` is 146pm. The compound AB has:A. Rock saltB. Zinc blendeC. anti fluoriteD. CsCI type |
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Answer» Correct Answer - A `(r_(A^(+2)))/(r_(B^(+2)))=(94)/(164)=0.64` The radius ratio lies in between 0.414 to 0.732 so, cation should be in octahadral void therefore, structure will be Rock salt. |
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| 18. |
अधोलिखितेषु एकवचनस्य रूपमस्ति1. मनांसि2. मनसी3. शस्त्राणि4. शिरसि5. |
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Answer» Correct Answer - Option 4 : शिरसि प्रश्न अनुवाद - निम्नलिखित में से एकवचन का रूप है- स्पष्टीकरण - शिरसी शब्द शिरस् शब्द के सप्तमी विभक्ति एकवचन का रूप है। शिरस् नपुंसकलिंग का शब्द है। शिरस का अर्थ होता है शिरा। अत: स्पष्ट है कि शिरसी एकवचन का रूप है।
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| 19. |
Which of the following outer configuration of element has minimum electron affinity.A. `2s^(2)2p^(4)`B. `2s^(2)2p^(2)`C. `3s^(2)3p^(4)`D. `3s^(2)3p^(2)` |
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Answer» Correct Answer - B `{:(2p^(2),,2p^(4),),(C,lt,O,),(wedge,,wedge,),(Si,lt,S,),(3p^(2),,3p^(4),):}` |
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| 20. |
Mass of `H_(2)O` present in air in 10 lit. closed vessel with 80% relative humidity at 1 atm and 400 K ? [Vapour pressure of water at 300 K = 0.04 atm]A. 0.18 gmB. 0.36 gmC. 0.09 gmD. 0.9 gm |
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Answer» Correct Answer - A `RH = 0.8 = (P_(H_(2)O (g)))/(V.P."of" H_(2)O) = (P_(H_(2)O (g)))/(0.04)` `P_(H_(2)O(g)) = 0.8 xx 0.04` PV = nRT for water wapour `0.8 xx 0.04 xx 10 = n_(H_(2)O) xx (0.08)/(10) xx 400` `n_(H_(2)O) = 0.01` `W_(H_(2)O) = 0.01 xx 18 = 0.18 gm` |
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| 21. |
Which is correct order of bond strength ?A. `2s - 1s gt 2p - 2p`B. `2p_(pi) - 2p_(pi) lt 2p_(pi) - 3d_(pi)`C. `2p_(pi) - 3p_(pi) gt 2p_(pi) - 3d_(pi)`D. `2s - 2s gt 2p - 2p` |
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Answer» Correct Answer - A `1s - 1s gt 2p - 2p` Value of n is different therefore low energy orbital prefer more overlapping |
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| 22. |
What is the density of wet air with 40% relative humidity at 1 atm and 284.5 K. [Given vapour pressure of `H_(2)O=47.5` torr, Average molar mass of dry air = 29 g `mol^(-1)`]A. 1.15 g/LB. 1.23 g/LC. 1.35 g/LD. 1.4 g/L |
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Answer» Correct Answer - B `40=(P_(H_(2)O))/(47.5)xx100,P_(H_(2)O)=19" torr"` `%" of "H_(2)O" in air"=(19)/(760)xx100=2.5` `M_(av)=(97.5xx29xx2.5xx5xx18)/(100)=28.73`, `d=(PM)/(RT)=(1xx28.73)/(0.0821xx284.5)=1.23g//L` |
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| 23. |
Hybridisation is a theoretical concept, as state of hybridisation can not be detected ever the spectroscopically: unlike intermediates or transition state in various reactions but it corrects the predictions which are based on overlapping of pure atomic orbitals. VSEPR theory predicts precisely shape and bond angle in a given molecule. Which of the following molecule /ions which are not planr?A. `[IF_(4)]^(-)`B. `[IF_(4)]^(+)`C. `[NH+(2)]^(-)`D. All of the above are planar |
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Answer» (A) `[IF_(4)]^(-)rarr` Square3 planar (B) `[IF_(4)]^(+)rarr` See saw (C ) `[NH_(2)]^(-)rarrV//` Bent planar |
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| 24. |
Directions: In the following question, two statements are numbered as Quantity I and Quantity II. On solving these statements, we get quantities I and II respectively. Solve both quantities and choose the correct option.Quantity I: A goods train can cross a station master standing on a platform in 42 seconds whereas it can cross the platform in 18 seconds less than two minutes. Find the length of the platform if the train is 420m long.Quantity II: In 30 seconds a train crosses a tree at a speed of 30 m/s. If it crosses the guard of another train moving in the same direction in 20 s more than a minute, find the length of the second train.1. Quantity I < Quantity II2. Quantity I > Quantity II3. Quantity I ≥ Quantity II4. Quantity I ≤ Quantity II5. Quantity I = Quantity II or relation cannot be established. |
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Answer» Correct Answer - Option 1 : Quantity I < Quantity II Given: Quantity I: Time train takes to cross the station master = 42 s Time train takes to cross the platform = 120 – 18 = 102 s Length of train = 420 m Length of the platform = L Quantity II: Time taken by train to cross a tree = 30 s The speed at which train cross the tree, S1 = 30 m/s Time taken by train to cross the guard of second train = 80 s Concept used: Speed = distance/time Speed by which train crosses the station master = speed of the train Length of the first train, L1 = time taken by it to cross the tree × speed at which it crosses the tree. As the train crosses the guard of second train, time taken = (sum of length of two trains)/speed of first train Calculation: Quantity I: Speed of train, S = length of train/time taken ⇒ S = 420/42 ⇒ S = 10 Time taken by train to cross the platform = distance/speed ⇒ Time = (L + 420)/S ⇒ 102 = (L + 420)/10 ⇒ 102 × 10 = L +420 ⇒ L = 1020 – 420 ⇒ L = 600 m Quantity I = 600 m Quantity II: L1 = 30 × 30 m ⇒ L1 = 900 m Length of second train = L2 Time taken by first train to cross the guard of second train = 80 s ⇒ 80 = (L1 + L2)/S1 ⇒ 80 = (900 + L2)/20 ⇒ 1600 = 900 + L2 ⇒ L2 = 700 m Quantity II = 700 m
∴ From the table, we can see that , Quantity I < Quantity II. |
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| 25. |
A thief is spotted by the police at a distance of 500m. On seeing the police, the thief takes off on a motor cycle at a speed of 30 m/s. If the thief is caught in 1 min 40 seconds, find the speed of the police.1. 43 km/hr2. 59 km/hr3. 78 km/hr4. 118 km/hr5. 126 km/hr |
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Answer» Correct Answer - Option 5 : 126 km/hr Given: Distance at which the thief is spotted = 500 m Speed of thief = 30 m/s Time taken by the police to catch the thief = 1 min 40 seconds = 100 s Concept used: Time taken for the police to catch the thief = distance/(relative speed) Relative speed = SP – ST, when both are going in same direction. Calculation: Time taken for the police to catch the thief = 500/(SP – 30) = 100 s ⇒ 5 = SP – 30 ⇒ SP = 35 m/s ⇒ 35 m/s = 35 × (18/5) km/hr = 126 km/hr ∴ The required speed is 126 km/hr. |
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| 26. |
A thief is spotted by the police at a distance of 300m. On seeing the police, the thief takes off on a motor cycle at a speed of 15 m/s. If the thief is caught in 1 min 40 seconds, find the speed of the police.1. 12 m/s2. 15 m/s3. 18 m/s4. 21 m/s5. 24 m/s |
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Answer» Correct Answer - Option 3 : 18 m/s Given: Distance at which the thief is spotted = 300 m Speed of thief = 15 m/s Time taken by the police to catch the thief = 1 min 40 seconds = 100 s Concept used: Time taken for the police to catch the thief = distance/(relative speed) Relative speed = SP – ST, when both are going in same direction. Calculation: Time taken for the police to catch the thief = 300/(SP – 15) = 100 s ⇒ 3 = SP – 15 ⇒ SP = 18 m/s ∴ The required speed is 18 m/s. |
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| 27. |
A tank can be filled by a tap in 9 hours. However, it takes 10 hours to fill the tank due to a leak. The tap is closed when the tank is full. How many hours will the tank take to empty due to leakage?1. 90 hours2. 100 hours3. 110 hours4. 80 hours |
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Answer» Correct Answer - Option 1 : 90 hours Given: Tank filled = 9 hours Tank + hole filled = 10 hours Concept used: Total capacity = LCM Efficiency of inlet tap always positive and efficiency of outlet tap is always negative Formula used: Efficiency = Total capacity/Time Calculation Let P be inlet pipe and Q be leakage Total capacity = LCM of 9, 10 = 90
Time taken by leakage to empty the tank = 90/1 = 90 hours. ∴ Time taken by leakage to empty the full tank is 90 hours |
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| 28. |
Which one of the following is not a force?A) ImpulseB) TensionC) ThrustD) Air ResistanceE) Weight |
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Answer» A) Impulse Tension, trust, weight are all common forces in mechanics whereas impulse is not a force. Impulse = force * Time duration. |
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| 29. |
Specific heat of aluminum when 26400 J of energy is supplied to 2 kg block and it's temperature rises from 20°C to 35°C is A. 1000 J kg -1 K-1 B. 70 J kg -1 K-1 C. 400 J kg -1 K-1 D. 880 J kg -1 K-1 |
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Answer» D. 880 J kg-1 K-1 |
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| 30. |
If there is no transfer of energy between two objects then their temperature is A. same B. different C. zero D. infinite |
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Answer» The Correct option is A. same |
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| 31. |
S.NRl1.1000 Ω60 cm2.100 Ω13 cm3.10 Ω1.5 cm4.1 Ω1 cmWhich of the above is inconsistent for the given meter bridge(1) 1(2) 2(3) 3(4) 4 |
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Answer» Correct option (4) 4 X = R(100 - l)/l |
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| 32. |
Celsius scale is based on properties of A. Mercury B. Aluminum C. Cesium D. Water |
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Answer» The Correct option is D. Water |
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| 33. |
Change of liquid in to gas without boiling is called A. vaporization B. sublimation C. boiling D. evaporation |
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Answer» D. evaporation |
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| 34. |
Due to evaporation from certain surface, it's temperature A. falls B. increases C. doesn't change D. becomes zero |
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Answer» The Correct option is A. falls |
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| 35. |
Does Albert have any new magazines? No, he ________ . A) does B) doesn’t C) has D) don’t |
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Answer» Correct option is B) doesn’t |
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| 36. |
A charge `+2q` moves vertically upwards with speed `v`, a second charge `-q` moves horizontally to the right with the same speed `v`, and a third charge `+q` moves horizonatlly to the right with the same speed `v`. The point `P` is located a perpendicular distance a away from each charge as shown in the figure. The magnetic field at point `P` is A. Into the page with magnitude `(mu_(0))/(4pi)(2qv)/(a^(2))`B. Into the page with magnitude `(mu_(0))/(4pi)(4qv)/(a^(2))`C. Out of the page with magnitude`(mu_(0))/(4pi)(2qv)/(a^(2))`D. Out of the page with magnitude`(mu_(0))/(4pi)(4qv)/(a^(2))` |
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Answer» Correct Answer - D `underset(B)(rarr)_(p)=underset(B)(rarr)_(q)+underset(B)(rarr)_(2q)+underset(B)(rarr)_(-q)` `(mu_(0))/(4pi)(qv)/(a^(2))o.+(mu_(0))/(4pi)(2qv)/(a^(2))o. + (mu_(0))/(4pi)(qv)/(a^(2))o.` `(mu_(0))/(4pi)(4qv)/(a^(2))o.` |
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| 37. |
Do they often go to the beach? Yes, they ________ . A) do B) go C) do go D) are going |
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Answer» Correct option is A) do |
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| 38. |
In a series R-L circuit, VL—VR by—degrees. (a) lags, 45 (b) lags, 90 (c) leads, 90 (d) leads, 45 |
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Answer» Correct option (c) leads, 90 |
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| 39. |
The power in an a.c. circuit is given by (a) VI cos φ (b) VI sin φ (c) I2Z (d) I2XL |
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Answer» Correct option (a) VI cos φ |
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| 40. |
The voltage applied across an R-L circuit is equal to—of VR and VL. (a) arithmetic sum (b) algebraic sum (c) phasor sum (d) sum of the squares. |
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Answer» (c) phasor sum |
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| 41. |
The critical angle for light going from medium X into medium Y is θ. The speed of light in medium X is v, then speed of light in medium Y is(a) v(1 – cos θ) (b) v/sin θ (c) v/cos θ (d) v cos θ |
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Answer» speed of light in medium Y is (b) v/sin θ |
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| 42. |
Two thin lenses are in contact and the focal length of the combination is 80 cm. If the focal length of one lens is 20 cm, then the power of the other lens will be(a) 1.66 D (b) 4.00 D (c) – 100 D (d) – 3.75 D |
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Answer» (d) P2 = P - P1 = 100 / 80 -100 / 20 =3.75 D |
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| 43. |
What is the need of modulation in communication system? |
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Answer» 1) Avoids mixing of signals 2) Increase the range of communication 3) Wireless communication 4) Reduces the effect of noise 5) Reduces height of antenna |
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| 44. |
A particle is projected at an anlge `tan^(-1)((1)/sqrt(3))`. Find the height at which velocity of the particle is `9hati+3hatj` (m/sec). `(g=10ms^(-2))`A. 1.8mB. 0.9mC. 0.7mD. 0.11m |
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Answer» `tan theta=(u_(y))/(u_(x)), (1)/sqrt(3)=(u_(y))/(u_(x))=(u_(y))/(9)` `u_(y)=3sqrt(3)` `V_(y)^(2)=u_(x)^(2)+2a_(y)s_(y)` `9=27+2(-10)S_(y)` `S_(y)=0.9` |
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| 45. |
What is the significance of IMEI in mobile? |
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Answer» IMEI is short for International Mobile Equipment Identity and is a unique number given to every single mobile phone, typically found behind the battery. IMEI numbers of cellular phones connected to a GSM network are stored in a database (EIR - Equipment Identity Register) containing all valid mobile phone equipment. |
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| 46. |
Explain process of double fertilization |
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Answer» The process of fusion of male gamete with the female gamete to form the diploid zygote (2n) is known as fertilisation. The fusion of one male gamete with egg and that of another male gamete with a secondary nucleus is called double fertilisation. It is the characteristic feature of only angiosperms. All angiosperms are characterised by a unique process called double fertilisation.
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| 47. |
Write the differences between TDMA and FDMA. |
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Answer»
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| 48. |
List various tools to repair mobile phones. |
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Answer» Tools to repair any smart phone or mobile phone include - soldering iron, soldering station, solder wire, solder paste, liquid flux, paste flux, jumper wire, tweezers, screwdriver, multimeter, dc power supply, ESD-Safe antistatic wrist strap, mat, apron, hand gloves, LCD tester, Battery tester, PCB holder, PCB Cleaner. |
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| 49. |
Write two examples for polar vectors |
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Answer» Examples of polar vectors include , the velocity vector , momentum , and force . |
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| 50. |
what is pharmacy |
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Answer» Pharmacists are healthcare professionals who specialize in the right way to use, store, preserve, and provide medicine. |
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