Description : Which of the following situations can be approximated to a steady state heat transfer system? (A) A red hot steel slab (having outside surface temperature as 1300°C) exposed to the atmospheric air at ... flowing at the rate of 6 Kg/minute through a copper pipe exposed to atmospheric air at 35°C
Last Answer : (B) 10 kg of dry saturated steam at 8 kgf/cm2 flowing through a short length of stainless steel pipe exposed to atmospheric air at 35°C
Description : What refers to the amount of heat removed from the cooled space in BTS’s for 1 watt-hour of electricity consumed? A. Cost efficiency rating B. Energy efficiency rating C. Coefficient of performance D. Cost of performance
Last Answer : Energy efficiency rating
Description : How many BTUs can a gallon of water store?
Last Answer : You can assume two temperatures, and calculate the amount of energy required to heat the water from one temperature to the other. Then convert that to BTU.
Description : In Jamaica, if you drop a steel ball weighing five pounds from a height of 45 inches, will it fall more rapidly through water at 20 degrees Fahrenheit or water at 40 degrees Fahrenheit. Or will it make no difference? -Riddles
Last Answer : 40 degrees Fahrenheit. At 20 degrees Fahrenheit the water would be ice.
Description : A man drives from his house to the station. If he drives at the rate of 10 kms per hour, he reaches the station at 6 pm. if he drives at 15 kms per hour, he would reach the station at 4 pm. At what speed, in kms ... he drives so as to reach the station at 5 pm? a) 12 b) 12.33 c) 5√5 d) 12.5 e) 13
Last Answer : Let x' be the distance between house and station. Time taken to travel a distance of x at the speed of 10km/hr, T1 = x/10 hours Time taken to travel a distance of x at the speed of 15km/hr, T2 = x/15 hours we ... the station at 5 pm, speed = 60/5 = 12 km/hr [12 pm - 5pm, time = 5 hours] Answer: a)
Description : How does minus 23.33 degrees celsius read on the Fahrenheit scale?
Last Answer : -23.33 Celsius = -9.994 Fahrenheit
Description : A freight car weighing 20 tons and moving at a speed of 7 miles per hour on a horizontal track collides and couples with a stationary car that weighs 15 tons. Neglecting friction, determine the velocity of the coupled cars.
Last Answer : ANSWER: 4 MILES PER HOUR
Description : You looked at the clock at 3:15. How many degrees are in the angle between the hour and the minute hands? (Hint: It's not 0) -Riddles
Last Answer : 7.5 degrees. Ask anyone this. No one will get it. You'll stump them!
Description : A flywheel weighs 400 kg and has a radius of gyration of 30 cm about its axis of rotation. It is mounted on a shaft subjected to a moment of 40 kgm. If the flywheel starts from restits speed after 3 seconds wil be a.10.9 rad/sec b.19.0 rad/sec c.51.2 rad/sec d.3.33 rad/sec e.16.35 rad/sec
Last Answer : d. 3.33 rad/sec
Description : A barrel of water weighs 60 pounds. What must you put in it for it to weigh 40 pounds? -Riddles
Last Answer : you put holes into it
Description : If the hour hand on a clock moves 1/60th of a degree every minute then how many degrees will the hour hand move in one hour?
Last Answer : Answer: One degree. If you said "360 degrees" or anything other than “one degree”, you are to be congratulated on getting this far.
Description : The heart rate in an adult person is – (1) 50-60 times per minute (2) 70-80 times per hour (3) 70-80 times per second (4) 70-80 times per minute
Last Answer : (4) 70-80 times per minute Explanation: Heart rate refers to the speed of the heartbeat, specifically the number of heartbeats per unit of time. The heart rate is typically expressed as beats per minute ( ... heart rate ranges from 60- 100 bpm; however 70-80 bpm is treated as the normal in adults.
Description : When the nurse observes that the patient's systolic blood pressure is less than 80-90 mm Hg, respirations are rapid and shallow, heart rate is over 150 beats per minute, and ... d) Irreversible In refractory or irreversible shock, the patient requires complete mechanical and pharmacologic support.
Last Answer : a) Compensatory In compensatory shock, the patient’s blood pressure is normal, respirations are above 20, and heart rate is above 100 but below 150.
Description : The heart rate in an adult person is (1) 50-60 times per minute (2) 70-80 times per hour (3) 70-80 times per second (4) 70-80 times per minute
Last Answer : 70-80 times per minute
Description : The boiling point of normal paraffinic (pron: pair-ah-FIN-ik) hydrocarbons increases with the number of carbon atoms per molecule. What is the smallest number of carbon atoms a normal paraffinic ... and still be a liquid at room temperature (70-75 degrees Fahrenheit) and 1 atmosphere pressure.
Last Answer : ANSWER: FIVE
Description : If a person weighs over 1,000 pounds and is totally bed-ridden, how on earth do they manage to continue consuming the enormous amount of calories it takes to stay that heavy?
Last Answer : That’s why they call them enablers.
Description : Has anyone heard of the seven year old girl who weighs 400 pounds?
Last Answer : Child abuse.
Description : A young boy needs to cross a bridge that can only hold 100 pounds of weight. The young boy weighs 98 pounds. The young boy also has 3 balls that each weigh 1 pound each. The young boy needs to get ... the exact same time.How does he get across the bridge with all 3 balls at the same time? -Riddles
Last Answer : The Boy juggles all 3 balls while he walks across the bridge.
Description : A man takes a barrel that weighs 20 pounds, and then puts something in it. It now weighs less than 20 pounds. What did he put in the barrel? -Riddles
Last Answer : He put a hole in the barrel to make it weigh less.
Description : What if your bowling ball weighs 14 pounds. How much does it weigh in ounces?
Last Answer : 14 x 16 = 24 + 60 + 140 = 224
Description : what is the normal cholesterol level for a 50 year female who is 5 feet 9 inches tall and weighs 199 pounds ?
Last Answer : what is the normal cholesterol level for a 50 year female who is 5 feet 9 inches tall and weighs 199 pounds?
Description : What is the normal cholesterol level for a 35 year old male who is 6 feet tall and weighs 160 pounds?
Last Answer : There is not a normal cholesterol level for everybody even if you specify the age, height, and weight. It would be best to talk to your doctor. YOUR TOTAL CHOLESTEROL LEVEL FOR EVERYONE SHOULD BE 200 ... 35 year old male who is 6 feet tall and weighs 189 normaly cholesterol level is less then 200
Description : What the Georges traveled 498.2 miles on 15.8 gallons of gas. how many miles per gallon did they get to the nearest tenth of a mile?
Last Answer : He travelled 31.5 miles per gallon.
Description : What.. the georges traveled 492.2 miles on 15.8 gallons of gas. How many miles per gallon did they get to the nearest tenth of a mile?
Last Answer : 31.2 mpg
Description : How many BTU's would I need for a 15 by 20 foot room?
Last Answer : 5000 BTU's should work for a room that size.
Description : How many pounds in a ten gallon propane tank?
Last Answer : Need answer
Description : How many BTU's should a heat pump have to effective heat a 200 sq. foot room?
Last Answer : It depends on your enviornment. A 36,000 BTU unit will probably work just fine. 36,000 btu's would heat a 1,000 square foot room. or more.
Description : How do I determine how many BTUs I need per foot for each room when purchasing portable heaters?
Last Answer : It depends on the climate and how well your home is insulated.A good rule of thumb is about 20 BTUs per square foot.
Description : If the temperature of the atmosphere rose 50 degr on a Fahrenheit thermometer, the rise on a Celsius thermometer would have been: w) 90 degrees x) 82.3 degrees y) 50.3 degrees z) 27.8 degrees
Last Answer : ANSWER: Z -- 27.8 DEGREES
Description : A network with bandwidth of 10 Mbps can pass only an average of 15,000 frames per minute with each frame carrying an average of 8,000 bits. What is the throughput of this network? a. 2 Mbps b. 60 Mbps c. 120 Mbps
Last Answer : a. 2 Mbps
Description : A network with bandwidth of 10 Mbps can pass only an average of 15,000 frames per minute with each frame carrying an average of 8,000 bits. What is the throughput of this network ? (A) 2 Mbps (B) 60 Mbps (C) 120 Mbps (D) 10 Mbps
Last Answer : (A) 2 Mbps Explanation: In data transmission, throughput is the amount of data moved successfully from one place to another in a given period of time, and typically measured in bits per second (bps), ... second (Mbps) or gigabits per second (Gbps). Here, Throughput = 15000 x 8000/60 = 2 Mbps
Description : An intense rain is falling at a uniform rate of 7.5 cm/hour for a period of 60 minutes on a basin whose area is 500 hectares. If the average infiltration capacity during the entire rain period is assumed to be 1.5 ... of the basin, is (A) 40 cumecs (B) 60 cumecs (C) 80 cumecs (D) 100 cumecs
Last Answer : Answer: Option C
Description : Ajay reads at an average rate of 30 pages per hour, while Vikram reads at an average rate of 40 pages per hour. If Ajay starts reading a novel at 4:30 PM and Vikram begins reading an identical copy of the same book at 5:20 PM, at ... same page? a) 7:50 PM b) 8:15 PM c) 8:40 PM d) 9:00 PM e) 9:25 PM
Last Answer : Ajay reads at average rate of 30 pages per hour ie. 1 page in every two minutes. Therefore, by 5:20 PM, he would have covered 25 pages By 6:20 PM, Ajay would have read 25+30 pages and Vikram would have ... and he will also finish 100 pages Hence, both of them will be on same page at 7:50 Answer: a)
Description : What is the phase delay of an 800 Hz voice signal if the phase shift is 15 degrees? A. 1.25 µsec B. 52 µsec C. 83.33 µsec D. 26 µsec
Last Answer : B. 52 µsec
Description : In a boiler enthalpy of water supplied was 2000 kJ/kg. Enthalpy being added by fuel combustion is 3200 kJ/kg. Using first law of thermodynamics, find amount of heat supplied if steam generation rate is 10 tons per hour.
Last Answer : Heat supplied Q = m (h2-h1) …….(Steady flow energy equation for boiler) ; h2=3200 KJ/kg h1=2000 KJ/kg m = 10 Tons /hour = (10 x 1000)/3600 kg/sec = 2.77 Kg/sec Q = 2.77(3200-2000) = 3324 KJ/sec heat supplied for 10 Tons/hr steam generation
Description : If an animal consumes 15 L of oxygen every 30 minutes what is the rate of oxygen consumption in ml per minute?
Description : A ship sails out to a mark at the rate of 10 km per hour and sails back at th rate of 15 km per hour. What is its average rate of sailing? (a) 10 km. p.h. (b) 12 km. p.h. (c) 15 km. p.h. (d) 11 km. p.h.
Last Answer : 12 km. p.h.
Description : Hour drive or a 15 minute drive for a date?
Last Answer : answer:I am all for the adventure of the hour drive. It will lend an air of novelty to the date. Bring an ice chest and put the food on ice,
Description : What is the degree of angle between the hour cut and the minute cut between 3:15 minutes ? Want an answer with an explanation ?
Last Answer : Answer 7.5 . At 8 o'clock, 180 পন্ন is generated between the cut of hour and minute . There are 30 spots in them. The value of each cut (180/30) ° = ৬ . When it is 3 o'clock, the hour is cut to 16.25 ... Then the value of 1.25 (1.25 * ৬) ° = 7.5 . Therefore, the angle between the two cuts is 8.5
Description : MTBF is measured in a. day increments. b. hour increments. c. minute increments. d. 30-minute increments. e. 15-minute increments.
Last Answer : b. hour increments.
Description : The settling velocity of the particles larger than 0.06 mm in a settling tank of depth 2.4 is 0.33 m per sec. The detention period recommended for the tank, is A. 30 minutes B. 1 hour C. 1 hour and 30 minutes D. 2 hours
Last Answer : ANS: D
Description : If a tank of gas costs about 32.25 for a mid-sized car and the tank holds 15 gallons What is the cost per gallon?
Last Answer : 17.25
Description : If a full tank of gas costs 32.25 and the tank holds 15 gallons what is the cost per gallon?
Last Answer : C* = C / V = $32.25/15 gal = $2.15 per gallon
Description : If I fill a 5 Gallon glass water bottle with very hot water will it change the temperature in a cool room by a few degrees?
Last Answer : 5 gallons? that should radiate some heat at least. The water won’t stay hot for long though.
Description : Is one furlong per minute the same speed as 7.5 miles per hour?
Last Answer : 1 furlong = 1/8 mile1 minute = 1/60 hour→ 1 furlong/min = 1 × (1/8 mile)/(1/60 hour)= 1 × 60/8 mph= 7.5 mphYes.
Description : How many miles per hour is 253 yards per minute?
Last Answer : 1 yard = 1/1760 mile1 min = 1/60 hour→ 253 yd/min = 253 × (1/1760)/(1/60) mph= 253 × 60/1760 mph= 8 5/8 mph= 8.625 mph
Description : What is the answer to this question. A car is traveling at a speed of 60 miles per hour what is the speed of the car in feet per minute?
Last Answer : 1 mile = 5280 feet, hence 60 miles is 60x5280 = 316800 feet and this is traveled in 1 hour or 60 minutes. Hence per minute is 316800/60 = 5280 feet per minute. There is a short cut. If you ... per minute. Similarly, to get feet per second from miles per hour, multiply mph by the fraction (22/15)
Description : Frequency of vibrations is usually expressed in A number of cycles per hour B number of cycles per minute C number of cycles per secondD None of these
Last Answer : C number of cycles per second