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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. |
What is the voltage across the inductor when the source voltage is 200V and the Q factor is 10?(a) 100V(b) 20V(c) 2000V(d) 0V |
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Answer» Right option is (c) 2000V The explanation is: We know that voltage across the capacitor in resonance condition is equal to Q times the source voltage. Q=VL/VS where VL is inductive voltage and VS is source voltage. 10=VL/200 => VL = 2000 V. |
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| 2. |
Find the Q factor when the voltage across the inductor is 2000V and the source voltage is 100V.(a) 10(b) 20(c) 30(d) 40 |
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Answer» The correct answer is (b) 20 To explain I would say: We know that voltage across the capacitor in resonance condition is equal to Q times the source voltage. Q=VL/VS where VL is inductive voltage and VS is source voltage. Q=2000/100=20. |
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| 3. |
Write down the importance of blood storage cabinets. |
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Answer» 1. Uniform temperature between 2 degree C – 6 degree C (in AC room) 2. Stainless steel inner chamber and Inside acrylic door to avoid temperature loss 3. Digital temperature indicator cum controller with audio visual alarm 4. Full view glass doors for observation without disturbing the inside conditions. |
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| 4. |
_________ roofs have vertical roof glass facing away from the equator side of the building to capture diffused light (not harsh direct equator-side solar gain).(a) Clerestory(b) Sawtooth(c) Translucent(d) Curved |
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Answer» Correct option is (b) Sawtooth For explanation I would say: The angled portion of the glass-support structure is opaque and well insulated with a cool roof and radiant barrier. The sawtooth roof’s lighting concept partially reduces the summer “solar furnace” skylight problem, but still allows warm interior air to rise and touch the exterior roof glass in the cold winter, with significant undesirable heat transfer. |
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| 5. |
In the following number series, a wrong number is given. Find out that wrong number. 2 11 38 197 1172 8227 65806 (a) 11 (b) 38 (c) 197 (d) 1172 (e) 8227 |
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Answer» (d) The series is based on the following pattern: |
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| 6. |
What is the diameter of a domestic sewer pipe laid at gradient 1 in 100?(a) 150 mm(b) 250 mm(c) 120 mm(d) 80 mm |
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Answer» The correct option is (a) 150 mm For explanation I would say: Following are some recommendations for domestic sewer pipe. 100 mm – 1 in 60. 150 mm – 1 in 100. 200 mm – 1 in 120. |
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| 7. |
The number of treads in a flight is equal to _________(a) risers in the flight(b) risers plus one(c) risers minus one(d) risers plus three |
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Answer» Correct answer is (c) risers minus one Explanation: It is often not simply the sum of the individual tread lengths due to the nosing overlapping between treads. If there are N steps, the total run equals N-1 times the going: the tread of the last step is part of a landing and is not counted. |
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| 8. |
__________ wells are constructed when low yielding groundwater sources are found relatively close to the surface, usually under 30 m (100 ft.). These are constructed using a rotary bucket auger.(a) Cap(b) Drilling(c) Bored(d) Surface |
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Answer» Correct option is (c) Bored Easiest explanation: They are usually completed by perforating the casing (also called cribbing) or using a sand screen with continuous slot openings (Bored Well). One advantage of bored wells is the large diameter of the casing, from 45-90 cm (18-36 in.). It provides a water storage reservoir for use during peak demand periods. A disadvantage of utilizing a shallow groundwater aquifer is that it generally relies on annual precipitation for recharge. Water shortages may occur following long dry periods in summer and extended freeze up during winter months. It can also be more susceptible to contamination from surface land-use activities. |
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| 9. |
What does IWMI stand for?(a) International Water Management Institute(b) International Weather Management Institute(c) Irrigation Water Management Institute(d) International Waste Management Institute |
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Answer» The correct option is (a) International Water Management Institute The best I can explain: The International Water Management Institute IWMI is a non-profit research organisation with headquarters in Colombo, Sri Lanka, and offices across Africa and Asia. Research at the Institute focuses on improving how water and land resources are managed, with the aim of underpinning food security and reducing poverty while safeguarding vital environmental processes. |
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| 10. |
At resonance condition, the voltage across the capacitor and inductor is _________ the source voltage.(a) Greater than(b) Less than(c) Equal to(d) Much less than |
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Answer» The correct answer is (a) Greater than For explanation: In resonance condition, the voltage across the capacitor and inductor is greater than the source voltage because the voltage across the capacitor or inductor in resonance condition is equal to Q times the source voltage. |
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| 11. |
A _______________ is a carpenter who does fine and detailed work specializing in the making of cabinets made from wood, wardrobes, dressers, storage chest, and other furniture designed for storage.(a) Scenic carpenter(b) Log builder(c) Trim carpenter(d) Cabinetmaker |
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Answer» The correct answer is (d) Cabinetmaker Best explanation: A cabinet is a box-shaped piece of furniture with doors and/or drawers for storing miscellaneous items. Some cabinets standalone while others are built in to a wall or are attached to it like a medicine cabinet. Cabinets are typically made of wood, coated steel, or synthetic materials. Commercial grade cabinets, which differ in the materials used, are called casework. |
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| 12. |
Abstract estimate is not the third and final stage in a detailed estimate.(a) False(b) TrueThis question was addressed to me in an interview for internship.My question comes from Estimate of Three Roomed and Sixed Roomed Building in division Methods of Building Estimate & Estimate of Building of Civil Engineering Drawing |
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Answer» Correct option is (a) False To explain I would say: This is the third and final stage in a detailed estimate. The quantities and rates of each item of work, arrived in the first two stages, are now entered in an abstract form. The total cost of each item of work is now calculated by multiplying the quantities and respective rates. |
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| 13. |
_______________ is a skilled trade in which the primary work performed is the cutting, shaping and installation of building materials.(a) Masonry(b) Plumber(c) Architecture(d) Carpentry |
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Answer» The correct option is (d) Carpentry Easy explanation: Carpenters traditionally worked with natural wood and did the rougher work such as framing, but today many other materials are also used and sometimes the finer trades of cabinetmaking and furniture building are considered carpentry. Carpentry in the United States is almost always done by men. With 98.5% of carpenters being male, it was the fourth most male-dominated occupation in the country in 1999, and there were about 1.5 million positions in 2006. Carpenters are usually the first tradesmen on a job and the last to leave. |
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| 14. |
As per IS: 1172-1963, water required per head per day for average domestic purposes, is _______(a) 120 litres(b) 135 litres(c) 75 litres(d) 195 litres |
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Answer» Correct answer is (b) 135 litres To explain: For domestic purposes – 135 litres to 225 litres For industrial purposes – 50 litres to 450 litres. |
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| 15. |
Find the total current if IC=2A and IR=5A.(a) 3A(b) -3A(c) 7A(d) 10A |
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Answer» Right answer is (c) 7A To explain: I is the total current in the circuit. Since this is a parallel connection, the total current in the circuit is equal to the sum of the currents in each branch of the circuit. Hence I=IC+IR. I=2+5=7A. |
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| 16. |
Find the value of IR if I=10A and IL=8A.(a) 5A(b) 18A(c) 12A(d) 2A |
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Answer» Right choice is (d) 2A For explanation: We know that I=IR+IL. 10=IR+8 => IR=2A. |
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| 17. |
From the given circuit, find the value of IR.(a) 0(b) V/I(c) V/R(d) Cannot be determined |
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Answer» The correct answer is (c) V/R Easiest explanation: In the given circuit, the voltage across the resistor is the same as the source voltage as they are connected in parallel. The current in the resistor is IR hence IR=V/R. |
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| 18. |
Find the value of IR if I=10A and IC=8A.(a) 5A(b) 18A(c) 12A(d) 2A |
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Answer» Right answer is (d) 2A Easy explanation: I is the total current in the circuit. Since this is a parallel connection, the total current in the circuit is equal to the sum of the currents in each branch of the circuit. Hence I=IC+IR. 10=8+IR => IR=2A. |
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| 19. |
At bandwidth frequency range, the value of the current I is?(a) I=Im/2(b) I=Im^2(c) I=Im(d) I=Im/√2 |
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Answer» The correct choice is (d) I=Im/√2 Explanation: At the bandwidth frequency range, the value of the current is equal to the maximum value of current divided by √2. |
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| 20. |
At bandwidth frequency range, the value of the voltage V is?(a) V=Vm/2(b) V=Vm^2(c) V=Vm(d) V=Vm/√2 |
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Answer» Right option is (d) V=Vm/√2 The best I can explain: At the bandwidth frequency range, the value of the voltage is equal to the maximum value of voltage divided by √2. |
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| 21. |
Find the value of voltage in the bandwidth range when the maximum value of voltage is 100 V.(a) 56.65 V(b) 35.36 V(c) 45.34 V(d) 70.72 V |
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Answer» Correct choice is (d) 70.72 V To elaborate: At the bandwidth frequency range, the value of the voltage is equal to the maximum value of voltage divided by √2. Hence V =100/√2= 70.72V. |
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| 22. |
The active component in an impedance parallel circuit will __________ the voltage.(a) Leads(b) Lags(c) Be in phase with(d) Either leads or lags |
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Answer» Right answer is (c) Be in phase with For explanation: The active component in an impedance parallel network will always be in phase with the voltage in the circuit. |
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| 23. |
The length of the phasor represents?(a) Magnitude of the quantity(b) Direction of the quantity(c) Neither magnitude nor direction(d) Either magnitude or direction |
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Answer» Right choice is (a) Magnitude of the quantity The explanation is: The length of the phasor arrow represents the magnitude of the quantity, whereas the angle between the phasor and the reference represents the phase angle. |
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| 24. |
_______________ estimate is a detailed estimate and is prepared to maintain the structure or work in proper order and safe condition.(a) Supplementary and revised estimate(b) Maintenance estimate(c) Item rate estimate(d) Revised estimate |
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Answer» Correct answer is (b) Maintenance estimate The explanation is: For building; this includes white washing, colour washing, painting, minor repairs etc. For road works the A.R. estimate provides for patch repairing, renewals, repair of culverts, etc. |
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| 25. |
Brick walls are measured in sq. m if the thickness of the wall is _________(a) 10 cm(b) 15 cm(c) 20 cm(d) 11 cm |
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Answer» Correct answer is (a) 10 cm Easiest explanation: 10cm, actually in India half brick thick wall is 115 mm thick. Half brick Modular brick wall is 10cm. Thick including thickness of plaster. However plaster is paid separately in both the cases. In India half brick thick wall is paid in sq. meter. |
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| 26. |
When inductances are connected in series, the equivalent inductance is ____________ the largest individual inductance.(a) Greater than(b) Less than(c) Equal to(d) Not related to |
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Answer» Correct choice is (a) Greater than Explanation: When inductances are connected in series, the equivalent inductance is equal to the sum of all the individual inductance values. Hence the equivalent inductance is greater than the largest individual inductance. |
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| 27. |
The variation of a quantity such as voltage or current shown on a graph is known as ___________(a) Waveform(b) Peak value(c) Instantaneous value(d) Period |
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Answer» Right answer is (a) Waveform To explain I would say: The variation of a quantity, which is voltage or current in this case, shown on a graph with the x-axis as time is known as a waveform. |
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| 28. |
In a series RLC circuit, the phase difference between the voltage across the capacitor and the voltage across the resistor is?(a) 0^0(b) 90^0(c) 180^0(d) 360^0 |
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Answer» Right answer is (b) 90^0 Explanation: In a series RLC circuit, voltage across capacitor lag the current by 90^0 and voltage across resistor is in phase with current so, the phase difference between the voltage across the capacitor and the voltage across the resistor is 90^0. |
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| 29. |
In village housing ______________ D.P.C should be used.(a) 1.5 cm(b) 2 cm(c) 6 cm(d) 0.5 cm |
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Answer» Right choice is (b) 2 cm The best explanation: 2 cm (3/4’’) thick damp proof course should be provided at the plinth level with cement mortar of 1:2 proportion or two coats of asphalt painting may be applied as D.P.C. |
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| 30. |
The Low income housing construction funding is provided by __________(a) National Governments(b) State Governments(c) World Bank(d) National Governments, State Governments and World Bank |
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Answer» The correct option is (d) National Governments, State Governments and World Bank The best I can explain: Bharat Nirman is targeting clean water, the Jawaharlal Nehru Urban Renewal Mission is building public toilets and sewage systems. The private sector, including companies such as Tata, have started to enter the low-income residential projects. In 2013, the Government of India and National Housing Bank borrowed US $100 million to fund their Low Income Housing Finance project. The money will be loaned to low income residents who wish to purchase or renovate a home. |
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| 31. |
In a series RLC circuit, the phase difference between the current in the circuit and the voltage across the resistor is?(a) 0^0(b) 90^0(c) 180^0(d) 360^0 |
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Answer» The correct answer is (a) 0^0 The explanation: In a series RLC circuit, the phase difference between the voltage across the resistor and the current in the circuit is 0^0 because they are in phase. |
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| 32. |
In a series RLC circuit, the phase difference between the voltage across the resistor and the current in the circuit is?(a) 0^0(b) 90^0(c) 180^0(d) 360^0 |
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Answer» Correct choice is (a) 0^0 The explanation is: In a series RLC circuit, the phase difference between the voltage across the resistor and the current in the circuit is 0 degrees because they are in phase. |
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| 33. |
For a sharp resonance, bandwidth is ______________(a) low(b) high(c) zero(d) infinity |
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Answer» The correct option is (a) low To elaborate: For sharp resonance quality factor is high and the quality factor is inversely proportional to bandwidth so bandwidth is low for sharp resonance. |
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| 34. |
What is the relation between IR and V in the following circuit?(a) IR leads V(b) IR lags V(c) IR and V are in phase(d) No relation |
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Answer» Correct choice is (c) IR and V are in phase Easy explanation: In the following circuit IR and V are in phase because IR is the current in the resistor and the current in the resistor is always in phase with the voltage across it. |
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| 35. |
The phase difference between the active component of an impedance parallel circuit and the voltage in the network is __________(a) 0(b) 90(c) 180(d) 360 |
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Answer» Correct answer is (a) 0 For explanation I would say: The active component in an impedance parallel network will always be in phase with the voltage in the circuit. Hence the phase difference is 0. |
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| 36. |
In an RLC series phasor, we start drawing the phasor from which quantity?(a) Voltage(b) Resistance(c) Impedance(d) Current |
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Answer» Correct option is (d) Current Best explanation: In an RLC series phasor diagram, we start drawing the phasor from the quantity which is common to all three components, that is the current. |
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| 37. |
The expected out turn of half brick partition wall per mason per day is _________(a) 1.5 m^3(b) 2.0 m^3(c) 4.0 m^2(d) 5.0 m^2 |
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Answer» The correct choice is (d) 5.0 m^2 The explanation: The out-turn of work per artisan varies to some extent according to the nature, size, height, situation, location, etc., In bigger cities where specialized and experienced labour is available the out-turn is greater than small towns and country sides. In well-organized work less labour is required. |
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| 38. |
The expected out turn of cement concrete 1 : 2 : 4 per mason per day is ________(a) 6.5 m^3(b) 1.5 m^3(c) 2.5 m^3(d) 5.0 m^3 |
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Answer» The correct option is (d) 5.0 m^3 To elaborate: 1 : 2 : 4 concrete, 1m^3 need Labour constant. Mixing concrete – 3.00 hour/m^3. Lifting and carrying concrete – 1.20 hour/m^3. compacting concrete – 0.80 hour/m^3. leveling surface of concrete – 0.10 hour/m^3. Total = (3+1.2+0.8+0.1) = 5. |
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| 39. |
The energy stored in the inductor is of _________ nature.(a) Electrostatic(b) Magnetic(c) Neither electrostatic nor magnetic(d) Either electrostatic or magnetic |
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Answer» Right choice is (b) Magnetic Easy explanation: Since inductor stores current which involves moving charge and energy associated with moving charge is of magnetic nature so we can say energy stored in the inductor is of magnetic nature. |
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| 40. |
In a series RLC circuit, the phase difference between the current in the circuit and the voltage across the capacitor is?(a) 0^0(b) 90^0(c) 180^0(d) 360^0 |
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Answer» The correct choice is (b) 90^0 The best I can explain: In a series RLC circuit, voltage across capacitor lags the current in the circuit by 90^0 so, the phase difference between the voltage across the capacitor and the current in the circuit is 90^0. |
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| 41. |
Which type is the line A in the following figure?(a) Dimension line(b) Extension line(c) Centre line(d) Short-break line |
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Answer» The correct option is (c) Centre line To elaborate: Centre line is used to indicate the axes of cylindrical, conical or spherical objects. Also to show the centre of circle and arcs. Long, thin chain line composed of alternate long and dot spaces approximately 1mm apart. Long dashes are about 9 to 12mm apart. |
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| 42. |
If in an alternating current circuit, capacitance of 30 µF is connected to a supply of 200V,50Hz. Find the current in the circuit.(a) 1.38 A(b) 1.89 A(c) 1.74 A(d) 0.89 A |
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Answer» The correct choice is (a) 1.38 A Explanation: XC=1/(2πfC)=106.1 I=V/XC=200/106.1=1.89 A. |
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| 43. |
Can capacitor fully charge using alternating current?(a) yes(b) no(c) may or may not(d) depend on value of capacitance |
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Answer» Correct choice is (a) yes Best explanation: No, the capacitor cannot be fully charged using alternating current because as soon as the capacitor charges, the alternating current reverses its polarity thereby discharging it. |
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| 44. |
If in an alternating current circuit, capacitance C is connected to a supply of 200V,50Hz. Current in the circuit is 1.89 A. Find the capacitance C.(a) 30 µF(b) 20 µF(c) 10 µF(d) 15 µF |
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Answer» The correct choice is (a) 30 µF To explain I would say: XC= V/I = 200/1.89 = 106.1 Ω. XC=1/(2πfC) Substituting the values we get C = 30 µF. |
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| 45. |
If the peak voltage is 9V, calculate the peak to peak voltage.(a) 9V(b) 20V(c) 18V(d) 12V |
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Answer» Right answer is (c) 18V Best explanation: Vp-p=2Vp Substituting the values from the question, we get Vp-p= 18V. |
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| 46. |
Calculate the current in an inductor if the energy stored is 160J and the inductance is 20H.(a) 1A(b) 2A(c) 3A(d) 4A |
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Answer» Correct answer is (d) 4A Best explanation: The expression for energy in an inductor is: E = LI^2/2 Substituting the values from the given question, we get I=4A. |
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| 47. |
The expected out turn of 2.5 cm cement concrete floor per manson per day?(a) 1.5 sq. m(b) 0.5 sq. m(c) 7.5 sq. m(d) 2.5 sq. m |
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Answer» Correct answer is (c) 7.5 sq. m The explanation is: For 100 sum, no. of Mason is 13 no. i.e for 13 Mason flooring is 100 square meter. So for 1 Mason flooring is 100/13 = 7.69 sum. |
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| 48. |
The expected out turn of 2.5 cm cement concrete floor per mason per day _____________(a) 2.5 sqm(b) 5.0 sqm(c) 7.5 sqm(d) 10 sqm |
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Answer» Correct option is (c) 7.5 sqm To elaborate: For 100 sum, no. of Mason is 13 no. i.e. for 13 Mason flooring is 100 square meter. So for 1 Mason flooring is 100/13 = 7.69 sum. So option 7.5 sqm is the answer. |
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| 49. |
In a series RLC circuit, the phase difference between the voltage across the capacitor and the voltage across the inductor is?(a) 0^0(b) 90^0(c) 180^0(d) 360^0 |
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Answer» Right option is (c) 180^0 Easy explanation: In a series RLC circuit, voltage across inductor lead the current by 90^0 and voltage across capacitor lag the current by 900 so, the phase difference between the voltage across the inductor and the voltage across the capacitor is 180^0. |
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| 50. |
Which, among the following, is the correct expression for alternating emf generated?(a) e=2Blvsin(θ)(b) e=2B^2lvsin(θ)(c) e=Blvsin(θ)(d) e=4Blvsin(θ) |
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Answer» Correct answer is (c) e=Blvsin(θ) Easy explanation: The correct expression for alternating emf generated is e=Blvsin(θ). Where B stands for magnetic field density, l is the length of each of the parallel sides v is the velocity with which the conductor is moved and θ is the angle between the velocity and the length. |
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