Description : Which is the modified form of batteries in today’s electronic cars? A. Lithium ion B. Nickel iron C. Lead Acid D. Sodium Nitrate
Last Answer : A. Lithium ion
Description : What are the various types of batteries used in electric vehicles • Lithium ion batteries • Sodium nickel chloride batteries • Sodium sulphor batteries • All of the above
Last Answer : • All of the above
Description : What type of battery is used in an electric car? A] Lithium ion B] Nickel -metal hydride C] Both A and B D] None of the above
Last Answer : C] Both A and B
Description : Advantages of lithium batteries 1. Light weight 2. Compact 3. Low maintenance 4. All of the above
Last Answer : 4. All of the above
Description : Who is the largest manufacturer of lithium batteries? A] Us giga factory B] Samsung solco C] Panasonic D] Toshiba
Last Answer : A] Us giga factory
Description : Average lifespan of sodium nickel chloride batteries • 5 years • 10 years • 15 years • 20 years
Last Answer : • 15 years
Description : Average temperature of electrolyte in sodium nickel chloride batteries • 100 to 200 degree Celsius • 270 to 350 degree Celsius • 380 to 410 degree Celsius • None of the above
Last Answer : • 270 to 350 degree Celsius
Description : Which of the following primary cells has the highest voltage ? A. Manganese-alkaline B. Carbon-zinc C. Lithium D. Mercury
Last Answer : C. Lithium
Description : Lithium cells operates ranging from a. -25 ° C to 25 ° C b. -50 ° C to 25 ° C c. -50 ° C to 75 ° C d. -75 ° C to 75 ° C
Last Answer : c. -50 ° C to 75 ° C
Description : On a certain day, the ratio of the passenger in the 1st class and the second class travelling by train is 1:3. the ratio of the fares collected from each first class and second class passengers is 30:1. If ... in Rs, collected from the second class passengers. A) 240 B) 360 C) 480 D) 120 E) None
Last Answer : Answer: D Let the number of passengers travelling by first class and second class be x and 3x respectively. Lets the fares collected from each of the first class and second class passengers be 30y and y ... 3xy=33xy=1320 xy=40. Total amount collected from the second class =3xy=3 40= Rs 120.
Description : What is the life span of electric car batteries? A. 8 Year B. 10 years. C. 9 years D. 11 years.
Last Answer : A. 8 Year
Description : When two batteries are connected in parallel, it should be ensured that A. They have same emf B. They have same make C. They have same ampere hour capacity D. They have identical internal resistance
Last Answer : A. They have same emf
Description : Sodium nickel chloride batteries are also called as • Horse • Zebra • Cobra • Turbo
Last Answer : • Zebra
Description : The electrolyte used in sodium nickel chloride batteries is • Sodium chloride • Tetra chloraluminate • Sodium bicarbonate • Sodium glutamate
Last Answer : • Tetra chloraluminate
Description : Who was the inventor of electric batteries in electric cars A Thomas Davenport B newton C Dr Abdul kalam D Nikola tesla
Last Answer : A Thomas Davenport
Description : How many volts it take to charge an electric car? 1. 140 2. 150 3. 120 4. 200
Last Answer : 3. 120
Description : How to increase the range on electric vehicles? a. By increasing the battery capacity. b. By reducing battery capacity. c. By installing a turbocharger. d. By installing another DC motor.
Last Answer : a. By increasing the battery capacity.
Description : Which electric vehicle has 30 kwh and 160 km range? A. Nissan leaf B. Ford focus C. Mitsubishi MiE5 D. Smart ED
Last Answer : A. Nissan leaf
Description : Identify incorrect statement of Electric vehicle A. Insufficient charging stations B. Long charging period C. Limited range D. High operating cost
Last Answer : D. High operating cost
Description : Two taps can fill a bunker in 40 and 48 mins respectively and a waste tap can empty 6 gallons per minute. All the 3 taps working together can fill the bunker in 30 mind. The capacity of the bunker is. A) 480 B) 480 C) 680 D) 780
Last Answer : A Work done by the waste tap in 1 min = 1/30 – (1/40 + 1/48) = 8 – (6+5)/240 = 8-11/240 = -3/240 = -1/80 (negative sign means emptying) Volume of 1/80 part = 60 gallons Volume of whole = (6*80) = 480 gallons
Description : The wavelength of light absorbed by Pr form of phytochrome is (a) 680 nm (b) 720 nm (c) 620 nm (d) 640 nm
Last Answer : (a) 680 nm
Description : A school has 9 maths teachers and 6 science teachers. In how many ways can a team of 4 maths teachers be formed from them such that the team must contain exactly 1 science teacher? A) 800 B) 720 C) 680 D) 504
Last Answer : Answer: D) The team should have 4 maths teachers. But the team must contain exactly 1 science teacher. Hence, select 3 maths teachers from 9 maths teachers and select 1 science teachers from 6 science teachers. Number of ways this can be ... ={9 8 7}/{3 2 1}X6 = 504 / 6 6 = 84 6 =504
Description : What is 320 over 520 simplified?
Last Answer : It is 8/13 simplified
Description : P, Q & R enter into partnership. P invests 6 times as much as Q and Q invests two- sixth of what R invests. At the end of the year, the profit earned is Rs.7200. what is the share of Q? A) 720 B) 550 C) 670 D) 480
Last Answer : Answer: A) Let R’s capital = Rs.x Q’s capital = Rs.2x/6 = x/3 P’s capital = 6x/3 = 2x Ratio of their capitals = 2x : x/3 : x =6x:x:3x =6:1:3 Hence Q’s share = (7200*1/10) = Rs.720
Description : What are the advantages and disadvantages of LED storage cell and lithium ion batteries ?
Last Answer : Although both cells are rechargeable, lithium ion batteries have higher recharge efficiency. Due to this its use as an alternative to commercial led storage cell is increasing. Light Li / C anode and ... LiOH and H2, gases that are dangerous. LIB costs more than Ni-Cd rechargeable batteries .
Description : What are the differences between the Lithium Ion and Lithium Polymer batteries?
Last Answer : The lithium Polymer (LIPO) battery is a more advanced then the Lithium Ion (Li-ion) battery. The LIPO has it's electrolyte held in a solid polymer film which is directly bonded to the lithium electrode ... are both basically recycled the same way. All in all the LIPO is slowly replacing the Li-ion.
Description : What quantities of 95 % v/v and 45 % v/v alcohols are to be mixed to make 800 mL of 65 % v/v alcohol? (A) 480 mL of 95 % and 320 mL of 45 % alcohol (B) 320 mL of 95 % and 480 mL of 45 % alcohol (C) 440 mL of 95 % and 360 mL of 45 % alcohol (D)360 mL of 95 % and 440 mL of 45 % alcohol
Last Answer : (B) 320 mL of 95 % and 480 mL of 45 % alcohol
Description : A dumper has a leak which would empty the dumper in 10 minutes. A tap is turned on which admits 4 liters a minute into the dumper, and it is emptied in 12 minutes. How many liters does the dumper hold? A) 480 liters B) 600 liters C) 320 liters D) 240 liters
Last Answer : D 1/x - 1/10 = -1/12 10-x/10x=-1/12 12(10-x)=-10x 120-12x = -10x 2x=120 X=60 Therefore 60 * 4 = 240 litres
Description : The speed of light is -----? A. 280,000 km/s B. 300,000 km/s (Answer) C. 320,000 km/s D. none of these
Last Answer : B. 300,000 km/s (Answer)
Description : Renal plasma flow of an average adult man is (A) 120–130 ml/minute (B) 325–350 ml/minute (C) 480–52 ml/minute (D) 560–830 ml/minute
Last Answer : Answer : D
Description : The residual product discharged by the hydrogen-oxygen cell is ____________ a) Hydrogen peroxide b) Alcohol c) Water d) Potassium permanganate
Last Answer : c) Water
Description : The electrolytic solution used in a hydrogen-oxygen fuel cell is ____________ a) 75% KOH solution b) 25% KOH solution c) 75% NaOH solution d) 25% NaOH solution
Last Answer : b) 25% KOH solution
Description : Which of the following is not an example of a fuel cell? a) Hydrogen-oxygen cell b) Methyl-oxygen-alcohol cell c) Propane-oxygen cell d) Hexanone-oxygen cell
Last Answer : d) Hexanone-oxygen cell
Description : A stable interface between solid _________ liquid ____________ and gaseous ___________ promotes high rate of electrode processes. a) Fuel, electrolyte, electrode b) Electrode, fuel, electrolyte c) Electrode, electrolyte, fuel d) Fuel, electrode, electrolyte
Last Answer : c) Electrode, electrolyte, fuel
Description : The positive plants of nickel iron cell is made up of a. Nickel hydroxide b. Lead peroxide c. Ferrous hydroxide d. Potassium hydroxide
Last Answer : a. Nickel hydroxide
Description : Inverter cell anode and cathode of the…………. cell is used for vehicle (a) Copper electrode zinc (b)Zinc copper (c) Aluminium zinc (d)Nickel Cobalt
Last Answer : (a) Copper electrode zinc
Description : How long does an electric car battery lasts per charge? A. 20 min.-10hr. B. 30min.-12hr. C. 40min.-9hr. D. 60min.-8hr.
Last Answer : B. 30min.-12hr.
Description : Which of the following vehicles produces zero emissions? A. Traditional B. Hybrid C. Electric D. Both A and B
Last Answer : C. Electric
Description : Which vehicle has the smallest number of principle components? A. Traditional vehicle B. Hybrid vehicle C. Electric vehicle D. Both A and B
Last Answer : C. Electric vehicle
Description : Which of these is a problem electric car makers are trying to solve? A. Electric cars aren't noisy enough. B. They don't produce enough sulphur dioxides. C. They don't cost enough.
Last Answer : A. Electric cars aren't noisy enough.
Description : A fuel cells converts ………energy into electrical energy A. Mechanical B. Magnetic C. Solar D. Chemical
Last Answer : D. Chemical
Description : What is one of the primary downsides of fuel cells? A. Weight B. Cost C. Pollution D. Maintenance
Last Answer : B. Cost
Description : Each cell has a vent cap A. To allow gases out when the cell is on charge B. To add water to the cell if needed C. To check the level of electrolyte D. To do all above functions
Last Answer : D. To do all above functions
Description : The open circuit voltage of any storage cell depends wholly upon A. Its chemical constituents B. On the strength of its electrolyte C. Its temperature D. All of the above
Last Answer : D. All of the above
Description : A dead storage battery can be revived by A. Adding distilled water B. Adding so-called battery restorer C. A dose of H2SO4 D. None of the above
Last Answer : D. None of the above
Description : The electrode for a battery must be A. A semi conductor B. An insulator C. A good conductor of electricity D. A bad conductor of electricity
Last Answer : C. A good conductor of electricity
Description : Which of the following battery is used for aircraft? A. Lead acid battery B. Nickel-iron battery C. Dry cell battery D. Silver oxide battery
Last Answer : B. Nickel-iron battery
Description : In cell, the current flows in outer circuit from a. Positive terminal to negative terminal and electrons from negative terminal to positive terminal b. Positive terminal to negative ... terminal d. Negative terminal to positive terminal and electrons from positive terminal to negative terminal
Last Answer : a. Positive terminal to negative terminal and electrons from negative terminal to positive terminal
Description : The emf of the dry cell is about a. 0 V b. 0.5 V c. 1 V d. 1.5 V
Last Answer : d. 1.5 V
Description : In lead acid accumulators, the container is filled with distilled water and concentrated sulphuric acid in the ratio of a. 1 : 2 b. 2 : 1 c. 3 : 1 d. 1 : 3
Last Answer : c. 3 : 1