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Description : Consider two water drops at a temperature T. These drops are NOT allowed to exchange energy with their environment. These two drops collide and combine. How does the temperature of these drops change when they combine? Does it: w) decrease x) remain the same y) increase

Answer : ANSWER: Y -- INCREASE

Description : Velocity of sound in air does not change with the change of (1) Temperature of air (2) Pressure of air (3) Moisture content in air (4) Wind in the direction of propagation of sound

Answer : Pressure of air

Description : The amount of heat required to change a boiling liquid to a gas at the same temperature depends on one of the following properties of the liquid. Does it depend on the liquid's: w) heat of fusion x) heat of vaporization y) temperature z) density

Answer : ANSWER: X -- HEAT OF VAPORIZATION

Description :  A resistor in which the resistance changes exponentially with change in temperature is called as A) Potentiometer B) Phototransistor C) Varactor D) Thermistor 

Answer :  A resistor in which the resistance changes exponentially with change in temperature is called as Thermistor 

Description : In a series RLC circuit, which one does not change with change in input frequency ? (A) Bandwidth (B) Quality factor (C) Resonant frequency (D) All of them

Description : A diode in which the change in reverse bias voltage varies the capacitance is called as A) Varactor diode B) Switching diode C) Tunnel diode D) Zener-diode  

Answer : A diode in which the change in reverse bias voltage varies the capacitance is called as Varactor diode

Description : How will the total capacitance change, when two capacitors are connected in parallel?

Answer : The  capacitance  will  increase  if  connected  in  parallel  because  it  will  be  like  you  have  increase  surface  area  of  a  plate  by  connecting  it  to   another.

Description : If the volume of a gas changes by a factor of 3, with pressure remaining constant, the temperature in Kelvin will change by a factor of: w) 1/9 x) 1/3 y) 3 z) 9

Answer : ANSWER: Y -- 3

Description : The volumetric efficiency of the compressor ______ with the increase in altitude of place a) increases b) decreases c) does not change d) None

Answer : b) decreases

Description : The non-relativistic mass of an object w) must be the same as its weight x) depends on where you measure it y) does not change with increasing velocity z) is greatest at the poles

Answer : ANSWER: Y -- DOES NOT CHANGE WITH INCREASING VELOCITY

Description : 1. Which post does the Constitution of India does not mention? 2. What is the Solar Corona' mainly? 3. Who was a blind poet who worshipped Krishna and spread Krishna Bhakti cult? 4. A ... ? 20. By inserting a soft iron piece into solenoid, what does the strength of the magnetic field?

Answer : Answer : 1. The Deputy Prime Minister 2. Consists of molten lava 3. Surdas 4. It will Expand 5. The Bank Note Press, Dewas 6. Kathak 7. Hydrogen 8. Alain khan, the father of Dilawar Khan 9. ... Sarwani 14. 1991 15. 15 16. 46 gram 17. Chinook 18. Painters 19. State Election Commission 20. Increase

Description : A metal ball and a rubber ball, both having the same mass, strike a wall normally with the same velocity. The rubber ball rebounds and the metal ball does not rebound. It can be concluded that ( ... change in momentum (4) The initial momentum of the rubber ball is greater than that of the metal ball

Answer : The rubber ball suffers greater change in momentum 

Description : The Psychological law of consumption states that (1) proportionate increase in consumption is less than proportionate increase in income (2) increase in income is equal to increase in consumption (3) ... is greater than increase in income (4) consumption does not change with a change in income 

Answer : proportionate increase in consumption is less than proportionate increase in income

Description : Stars twinkle but planets do not twinkle because (1) they emit light of a constant intensity (2) their distance from the earth does not change with time (3) they are very far away from ... and hence we receive a greater amount of light and therefore minor variations in intensity are not noticeable 

Answer : they are nearer to the earth and hence we receive a greater amount of light and therefore minor variations in intensity are not noticeable

Answer : Yes BJT have internal capacitances.

Description : Which of the following does not change in a transformer?  (A) Current (B) Voltage (C) Frequency (D) All of the above

Answer : Which of the following does not change in a transformer?  (A) Current (B) Voltage (C) Frequency (D) All of the above

Description : How does AC current change direction?

Answer : This  is  because  the  angle  at  which  the   magnetic  fields  cuts  across  a  winding  changes  its  poles  thus  current  has  to  change  dirention  .

Description : The wavelength at which the peak of intensity of blackbody radiation occurs (1) increases with increase in temperature (2) decreases with increase in temperature (3) is the same at all temperatures (4) does not follow any pattern as temperature changes

Answer : decreases with increase in temperature

Description : The velocity of sound in air (1) decreases with increase of temperature (2) increases with decrease of temperature (3) does not depend on temperature (4) decreases with decrease of temperature

Answer :  decreases with decrease of temperature

Description : With neat diagram, explain working of capacitance level measurement.

Answer : working : The capacitive level detector operates on the equation of parallel plate capacitor, i.e. C = ε A/d. It consist of an insulated capacitance probe (which is a metal electrode) ... in the capacitance is measured and is displayed on the indicator calibrated in terms of liquid level. 

Description : What is the capacitance when a capacitor passes a current of 31.43 mA when supplied with 40 V AC with a frequency of 1000 Hz? A) 0.125 F B) 0.125 μF C) 1257.2 μF D) None of these

Answer : What is the capacitance when a capacitor passes a current of 31.43 mA when supplied with 40 V AC with a frequency of 1000 Hz? A) 0.125 F B) 0.125 μF C) 1257.2 μF D) None of these

Description : With the help of which bridge are the capacitance and dielectric loss of a capacitor generally measured ?

Answer : With the help of Schering bridge are the capacitance and dielectric loss of a capacitor generally measured.

Description : A parallel combination of capacitance C and resistance R is connected in series with inductance L and small resistance r. Under what condition will the circuit be non-reactive?  (A) C=LR (B) C=LR2 (C) C=L/R2 (D) C=L/R

Description : What happens to the angle between current and voltage, when a small capacitance is added in series with a highly inductive circuit?  (A) Increases (B) Remains same as earlier angle (C) Decreases (D) Becomes indeterminant

Description : Which of the following processes will cause metamorphism? a) A change in the chemical environment b) An increase in temperature c) An increase in pressure d) All of these

Description : What term refers to the heat needed to change a unit mass of a substance at its melting temperature from a solid into a liquid? 

Answer : ANSWER: HEAT OF FUSION or LATENT HEAT OF FUSION or ENTHALPY OF FUSION

Description : If the pressure of a gas is increased by a factor of 4, and the temperature is kept constant, the volume of the gas will change by which of the following factors? w) 4 x) 2 y) 1/2 z) 1/4

Answer : ANSWER: Z -- 1/4

Description : In order to avoid catastrophic consequences of climate change, there is general agreement among the countries of the world to limit the rise in average surface temperature of earth compared to that of pre-industrial times by 

Answer : (A) 1.5 oC to 2 oC

Description : The five key indicators of global climate change of our planet are : (1) Antartic Sea ice, Oxygen, Rainfall, Drought and Sea level (2) Sea-level, Rising temperatures, Rainfall, Nitrogen and Arctic Sea ... Arctic Sea ice, Carbon dioxide, Global Temperature, Sea level and Land ice. (4) None of these 

Answer :  Arctic Sea ice, Carbon dioxide, Global Temperature, Sea level and Land ice.

Description : When quick lime is added to water (1) heat is liberated (2) heat is absorbed (3) temperature decreases (4) no heat change takes place

Answer :  heat is liberated

Description : In which form is the supplied heat energy stored during change in temperature of substance? (1) Heat energy (2) Kinetic energy (3) Potential energy (4) Both kinetic and potential energy

Answer : Kinetic energy

Description : Which of the following property of sound is affected by change in air temperature (1) Frequency (2) Intensity (3) Amplitude (4) Wavelength

Answer : Wavelength

Description : Speed of sound in air is unaffected by change in : (1) Pressure (2) Humidity (3) Temperature (4) Volume

Answer : Pressure

Description : Suggest the type of joints in concrete when it is likely to increase in volume due to temperature change. Explain it and draw its neat sketch.

Answer : When it is likely to increase in volume due to temperature change expansion joint is constructed. i. Expansion joints are provided by keeping a gap between panels of concrete and later sealing it ii. ... cotton and finally such joint is sealed using sealants like wood, thermocol or bitumen. 

Description :  A bimetallic strip is used to convert a temperature change - a) into mechanical displacement b) into electrical displacement c) into neither mechanical nor electrical displacement d) all of the above

Answer :  A bimetallic strip is used to convert a temperature change - into mechanical displacement

Description : The common-emitter transistor circuit can amplify a small current signal because a small change in the signal current produces one of the following. Does the change in signal produce a large change in the: w) emitter-base voltage x) base current y) collector current z) collector voltage

Answer : ANSWER: Y -- COLLECTOR CURRENT

Description : Which of the following does NOT affect sea level change? w) Antarctic ice sheet x) small glaciers and ice caps y) Arctic sea ice z) Greenland ice sheet

Answer : ANSWER: Y -- ARCTIC SEA ICE

Description : When a solute is dissolved in a pure solvent, the resulting freezing point is: w) higher than pure solvent x) lower than pure solvent y) does not change z) cannot tell from this information

Answer : ANSWER: X -- LOWER THAN PURE SOLVENT

Description : 1. Who was the only Indian woman who became President of WHO? 2. When water is heated from 0 degree C to 20 degree C, how does its volume change? 3. Which is a form of heart disease in ... is the largest temperate desert of the world? 20. In whose rule was Islam, as the state religion, abolished?

Answer : Answer : 1. Raj Kumari Amrit Kaur 2. It shall increase 3. Angina 4. Mediterranean 5. Bull capital, Rampurva 6. The Union Home Minister 7. Sodium or potassium salts of heavier fatty acids 8. 1994 9. ... .A.-Russia 15. In Cambodia 16. 5 17. Painting 18. Revenue receipts 19. Patagonian desert 20. Akbar

Description : Which one of the following is not a software myth? (A) Once we write the program and get it to work, our job is done. (B) Project requirements continually change, but ... not understand how to control software projects internally, it will invariably struggle when it outsources software projects.

Answer : (D) If an organization does not understand how to control software projects internally, it will invariably struggle when it outsources software projects.

Description : When ice cubes are made, the entropy of water (1) does not change (2) decreases (3) increases (4) may either increase or decrease depending on the process used

Answer : decreases

Description : If ice floating on water in a vessel melts, the water level in the vessel _______. (1) increases (2) does not change (3) first increases before decreasing (4) decreases

Answer : does not change

Description : A barometer is kept inside a bell jar. Air is slowly pumped out of the jar. (1) The mercury level starts rising (2) The mercury level starts falling (3) The mercury level does not change (4) The bell jar breaks up

Answer : The mercury level starts rising

Description : A radioactive substance does not undergo any change (in mass or charge) during (1) gamma-emission (2) oxidation (3) alpha-emission (4) beta-emission

Answer : gamma-emission

Description : When a person sitting on a swing stands up on the swing, the frequency of oscillation (1) decreases (2) increases (3) becomes infinite (4) does not change

Answer : increases

Description : The density of the liquid when heated (1) decreases (2) increases (3) does not change (4) may increase of decrease depending on pressure

Answer : decreases

Description : When pressure is increased the melting point of ice (1) increases (2) does not change (3) decreases (4) depends on the impurities in the ice

Answer : decreases

Description : A gas thermometer is more sensitive than a liquid thermometer because a gas : (1) is lighter than liquid (2) expands more than a liquid (3) is easy to obtain (4) does not change state easily

Answer : does not change state easily

Description : Which of the following is an alternative theory to the Big Bang theory developed in 1948, stating that the universe does not change even though it is expanding over time ? (1) Oscillating Universe (2) Steady State Universe (3) Mirror Universe (4) Eternal Inflation

Answer : Steady State Universe

Description : Which flag does not change by the execution of the instruction DCR B in 8085 microprocessor ?  (a) Parity (b) Carry (c) Zero (d) Sign

Answer : Which flag does not change by the execution of the instruction DCR B in 8085 microprocessor ?  (a) Parity (b) Carry (c) Zero (d) Sign

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