Rankine cycle efficiency in a good steam power station may be in the range between........
a.15% - 20%
 b.35% - 40%
 c.50% - 60%
 d.90% - 95%

1 Answer

Answer :

b.35% - 40%

Related questions

Description : Higher plant efficiency up to______ over the entire load range. a. 30%-50% b. 20%-40% c. 60%-90% d. 50%-80%

Last Answer : a. 30%-50%

Description : Volumetric efficiency of air compressor is of the order of A. 20% to 30 % B. 40% to 50% C. 60% to 70% D. 70% to 90%

Last Answer : ANSWER : D

Description : Approximately how many businesses content marketing is used? A. 20% to 30% B. 40% to 50% C. 60% to 70% D. 80% to 90%

Last Answer : D. 80% to 90%

Description : Gasohol is a mixture of a) 90% ethanol + 10% gasoline b) 10% ethanol + 90% gasoline c) 40% ethanol + 60% gasoline d) 50% ethanol + 50% gasoline

Last Answer : Answer: b Explanation: 10% ethanol + 90% gasoline makes gashol.

Description : The tensile strength of concrete is about ________ of its compressive strength [ A ] 10% to 15% [ B ] 30% to 40% [ C ] 50% [ D ] 60% to 75%

Last Answer : [ A ] 10% to 15%

Description : Which of the following quantities has the GREATEST influence on the overall efficiency of a conventional (Rankine cycle) electric generating station burning fossil fuels? w) steam temperature at the steam turbine ... pressure at the steam turbine inlet z) pounds of ash and sulfur per pound of fuel 

Last Answer : ANSWER: W -- STEAM TEMPERATURE AT THE STEAM TURBINE INLET 

Description : The usual percentages of clay and metal in cermet are: (A) 50%, 50% (B) 60%, 40% (C) 70%, 30% (D) 80%, 20%

Last Answer : Answer: Option D

Description : Boiler efficiency is a measure of how effectively _______ energy in fuel is converted into heat energy in steam going to the turbines A Chemical energy B Heat energy C Thermal energy D All of the above

Last Answer : A Chemical energy

Description : Carbide tipped cutting tools are manufactured by powder metallurgy techniques and have a composition of (A) 90% tungsten carbide and 10% cobalt (B) 70% aluminium oxide & 30% silica (C) 30% nickel, 15% chromium & 55% tungsten (D) 65% tungsten & 35% zirconium

Last Answer : Option A

Description : The rankine cycle efficiency of steam power plant is  (1) 60-80% (3) 30-45% (2) 45-80% (4) 20-30%

Last Answer : The rankine cycle efficiency of steam power plant is 30-45%

Description : Which of the following is true about the Accounts Receivable Lag and its implications on demand? a. If you offer no credit, demand falls to about 60% of normal. b. At 30 days, demand is 90%. c. At 45 days, demand is 95%. d. At 60 days, demand is 98.5%. e. At 90 days, demand is 100%.

Last Answer : d. At 60 days, demand is 98.5%.

Description : Thermal of well-maintained boiler will be of the order ______ a. 30% b. 55% c. 90% d. 45%

Last Answer : c. 90%

Description : Permanent magnets are made of high carbon steel and (A) 15% of cobalt (B) 20% of cobalt (C) 35% of cobalt (D) 45% of cobalt

Last Answer : Answer: Option D

Description : The cost of fuel transportation is maxmimun in........ A.Hydro-electric power plant B.Steam power plant C.Nuclear power plant D.90% - 95%

Last Answer : Ans: B

Description : The percentage of water for making a cement paste of normal consistency varies from (a) 15 to 25% (b) 25 to 35% (c) 35 to 50% (d) 50 to 60%

Last Answer : (b) 25 to 35%

Description : If the Computer is purchased on 11th May 2017 then at what rate depreciation will be provided on it? a) 40% b) 60% c) 30% d) 20%

Last Answer : a) 40%

Description : In a Rankine cycle, regeneration results in higher efficiency because (a) Pressure inside the boiler increases [GATE-2003] (b) Heat is added before steam enters the low pressure turbine (c) ... temperature of heat addition in the boiler increases (d) Total work delivered by the turbine increases 

Last Answer : (c) Average temperature of heat addition in the boiler increases  

Description : The efficiency of superheat Rankine cycle is higher than that of simple Rankine cycle because [GATE-2002] (a) The enthalpy of main steam is higher for superheat cycle (b) The mean temperature of heat ... temperature of steam in the condenser is high (d) The quality of stem in the condenser is low 

Last Answer :  (b) The mean temperature of heat addition is higher for superheat cycle  

Description : The draught may be produced by a_________ a) Chimney b) Mechanical fan c) Steam jet d) All of the above

Last Answer : d) All of the above

Description : Impaired renal function is indicated when the amount of PSP excreted in the first 15 minutes is (A) 20% (B) 35% (C) 40% (D) 45%

Last Answer : A

Description : According to Reserve Bank of India Regulations, “Universal Banks” are permitted to pick up stake in Payment Banks up to _________ A. 35% B. 25% C. 20% D. 40% E. 30%

Last Answer : E. 30% Explanation: RBI regulations allow universal banks to invest up 30 per cent in payments banks.

Description : Human blood contains _____________ percentage of plasma. (a) 35% (b) 40% (c) 50% (d) 65%

Last Answer : Ans:(d)

Description : Cooling efficiency of a cooling tower is significantly affected under cross-wind condition and might decrease to……… in the range of moderate to high wind velocity condition. a) 50% c) 25% b) 75% d) 90%

Last Answer : 75%

Description : In trickling filter, B.O.D. is reduced to A. 30 to 40% B. 40 to 60% C. 60 to 80% D. 80 to 90%

Last Answer : ANS: C

Description : What is the rate of depreciation charged on Computer Software: a) 10% b) 60% c) 40% d) 15%

Last Answer : b) 60%

Description : What kind of energy output is obtained from a ‘Steam Power Plant’? a. Heat energy b. Sound energy c. Electricity d. Thermal energy

Last Answer : c. Electricity

Description : The _______ system includes anywhere that the steam condenses to form liquid water. a. Loop b. Power c. Liquid d. Condensate

Last Answer : d. Condensate

Description : Steam produced in a boiler can be used for a variety of purposes including space heating, drying and _________________ a. Sterilization b. Humidification c. Power generation d. All of above

Last Answer : d. All of above

Description : ____________is used to release condensate in pipe work a) steam trap b) valves c) power generators d) none of above

Last Answer : b) valves

Description : Vijay marked his camera at 50% above his cost price. He sold it after allowing discount and still made a profit of 20%. What is the discount percentage he offered on it? a)20% b)25% c)30% d)35%

Last Answer : a)20%

Description : Why single boiler unit per turbine is equipped commonly? • For better turbine control • To reduce the cost • For overcoming losses of power • To improve the efficiency

Last Answer : • For better turbine control

Description : The atmosphere of moon consists of-------? A. 90% Hydrogen, 10% Nitrogen B. 80%Nitrogen, 20% Hydrogen C. 60% Nitrogen, 40%inert gases (Answer) D. None

Last Answer : C. 60% Nitrogen, 40%inert gases (Answer)

Description : In the Freemium model typically what percentage of users pay? A. Almost all users - over 90% B. Most Users - over 60% C. Few Users - less than 20% D. Users do not pay

Last Answer : C. Few Users - less than 20%

Description : If a double stranded DNA has 20% Thymine, the percentage of Guanine in the DNA a) 30% b) 10% c) 90% d) 40%

Last Answer : a) 30%

Description : The service industry makes up approximately what percentage of all jobs in the United States? (a) 20% ; (b) 40% ; (c) 74% ; (d) 90%

Last Answer : (c) 74% ;

Description : Arjun bought 100 mangoes at the same price . 40 of them were of lower quality. He sold the remaining 60 mangoes at 60% more than the cost price. If in total, he earned a 28% profit, What is his ... loss percentage, on the 40 mangoes of lower quality? a)20% profit b)15% profit c)20% loss d)15% loss

Last Answer : c)20% loss

Description : Radioactive iodine uptake by thyroid gland 24 hours of a test dose is (A) 1.5–15% of the test done (B) 15–20% of the test done (C) 20–40% of the test done (D) 50–70% of the test done

Last Answer : Answer : C

Description : For the manufacture of Portland cement, the proportions of raw materials used, are (A) Lime 63% ; silica 22% ; other ingredients 15% (B) Lime 22% ; silica 63% ; other ingredients 15% (C) Silica 40% ; lime 40% ; other ingredients 20% (D) Silica 70% ; lime 20% ; other ingredients 10%

Last Answer : Answer: Option A

Description : Which of the following series of discounts is the best for a customer? (A) Successive discounts of 10% ,20%,30% (B) Successive discounts of 20%,20%,20% (C) Successive discounts of 15%,15%,15%,15% (D) Successive discounts of 20%,40% a) A b) B c) C d) D e) A and B

Last Answer : consider the price as 100 A = 100 × 0.9 × 0.8 × 0.7 =50.4 B = 100 × 0.8 × 0.8 × 0.8=51.2 C = 100 × 0.85 × 0.85 × 0.85 ×0.85 ~ =52.2 D = 100 × 0.8 × 0.6 =48 We see that the maximum discount of 52% (100-48) is on D, which is the best for a customer. Answer : d

Description : Which of the following series of discounts is the best for a customer? (A) Successive discounts of 10% ,20%,30% (B) Successive discounts of 20%,20%,20% (C) Successive discounts of 15%,15%,15%,15% (D) Successive discounts of 20%,40% a) A b) B c) C d) D e) A and B

Last Answer : consider the price as 100 A = 100 × 0.9 × 0.8 × 0.7 =50.4 B = 100 × 0.8 × 0.8 × 0.8=51.2 C = 100 × 0.85 × 0.85 × 0.85 ×0.85 ~ =52.2 D = 100 × 0.8 × 0.6 =48 We see that the maximum discount of 52% (100-48) is on D, which is the best for a customer. Answer : d

Description : Mr. Sachin spent 20% of his monthly income on food and 15% on children's education. 40% of the remaining he spent on entertainment and transport together and 30% on the medical. He is left with an amount of Rs.8, 775/- after ... 000/- b) Rs.46,000/- c) Rs.36, 000/- d) Rs.29,000/- e) None of these

Last Answer : Let the total income of Mr.Sachin be 100 According to question, 100 – 20 –15 = 65 × 60/100 × 70/100 = 27.3. 27.3 = 100 8775 = 100/27.3 × 8775 = Rs. 32142. Answer: e)

Description : What is the starting awareness percentage of a new product? a. 15% b. 65% c. 40% d. 25% e. 20%

Last Answer : d. 25%

Description : Rate of depreciation in case of oil well: a. 40% b. 20% c. 15% d. 30%

Last Answer : c. 15%

Description : Rate of Depreciation chargeable on fully temporary wooden structure: a) 100% b) 50% c) 40% d) 15%

Last Answer : c) 40%

Description : How much percentage of water lies within the body cells. a. 20% b. 40% c. 60% d. 80%

Last Answer : 40%

Description : In a DNA percentage of thymine is 20% then what will be percentage of guanine? (a) 20% (b) 40% (c) 30% (d) 60%

Last Answer : (c) 30%

Description : Pozzolana is essentially a silicious material containing clay up to (a) 20% (b) 40% (c) 60% (d) 80%

Last Answer : (d) 80%

Description : A perfect product (with 100% awareness) starting with a survey score of 100, why is it that at 60% accessibility rating, 80% of customers have access to a product such that survey score declines from ... acquire the product. c. Because accessibility rating is not reliable. d. All of the above.

Last Answer : b. Of the 40% of customers without accessibility, 20% of them would make an extra effort to acquire the product.

Description : Protein content of soyabean is about (A) 30% (B) 40% (C) 50% (D) 60%

Last Answer : Answer : B

Description : how much of total coal produced is used in brick kilns? A. 40% B. 50% C. 60% D. 70%

Last Answer : ANSWER: C