Description : The optimum cardinal temparature point for germination of rice seeds is– 1) 20°C – 25°C 2) 18°C – 22°C 3) 30°C – 32°C 4) 37°C – 39°C
Last Answer : 1) 20°C – 25°C
Description : High seed germination in cucumber occurs under temperature range of: a. 20-25°C b. 25-30°C c. 15-25°C d. None of above
Last Answer : 20-25°C
Description : Optimum temperature for maximum crop development in wheat is (a) 10-15°C(b) 20-25°C (c) 25-30°C (d) 30-35°C
Last Answer : (b) 20-25°C
Description : Optimum temperature for cool season vegetables is: a. 25-30°C b. 25-27°C c. 18-24°C d. 15-20°C
Last Answer : 18-24°C
Description : Which of the following are optimum temperature conditions for making benzenediazonium chloride from aniline? (a) 0°C to 10°C (b) 20°C to 25°C (c) 30°C to 40°C (d) 45°C to 50°C
Last Answer : 0°C to 10°C
Description : Potato tuber growth is stopped at what temperature ? (a) 40°C — 42°C (b) 30°C — 32°C (c) 35°C — 37°C (d) 38°C – 40°C
Last Answer : (b) 30°C — 32°C
Description : Green potato tuber is inedible due to: a. Carcinogenic b. Hardness c. Hollowness d. None of above
Last Answer : Carcinogenic
Description : Potato cut tuber are used for planting during a. Autumn crop b. Spring crop c. Both of above d. None of above
Last Answer : Spring crop
Description : Tuber initiation in potato starts after a. 7 th week b. 9 th week c. 5 th week d. 4 th week
Last Answer : 7 th week
Description : The wet and 'dry bulb temperature for a vapour-gas mixture are 25°C and 30°C respectively. If the mixture is heated to 45°C at constant pressure, the wet bulb temperature will be __________ °C. (A) 25 (B) > 25 (C) < 25 (D) - 25
Last Answer : (B) > 25
Description : A mixture of 10% C6H6 vapour in air at 25°C and 750 mm Hg has a dew point of 20°C. Its dew point at 30°C and 700 mm Hg will be around __________ °C. (A) 21.7 (B) 20 (C) 27.3 (D) 18.7
Last Answer : (D) 18.7
Description : The heat flux (from outside to inside) across an insulating wall with thermal conductivity, K = 0.04 W/m.°K and thickness 0.16m is 10 W/m2 . The temperature of the inside wall is - 5°C. The outside wall temperature is (A) 25°C (B) 30°C (C) 35°C (D) 40°C
Last Answer : (C) 35°C
Description : A thin, flat & square plate measuring 2 m 2 m is freely hanging in ambient air at 25°C. It is exposed to the solar radiation falling on one side of the plate at the rate of 500 W/m2. The plate temperature will ... heat transfer co-efficient is __________ W/m2 °C. (A) 50 (B) 100 (C) 150 (D) 200
Last Answer : (B) 100
Description : In Pakistan, yield of potato range between : a. 10-15 ton b. 15-20 ton c. 20-25 ton d. 25-30 ton
Last Answer : 20-25 ton
Description : Volatile oil are those oil which can evaporate at : a. 25°C b. 40°C c. 50°C d. 65°C
Last Answer : 25°C
Description : Process conditions in fermentator used for production of penicillin is (A) 25°C, 2 atm (B) 50°C, l0 atm (C) 30°C, 200 mm Hg (absolute) (D) 90°C, 45 atm
Last Answer : (A) 25°C, 2 atm
Description : Lemons are usually degreened at: a. 6°C b. 16°C c. 26°C d. 30°C
Last Answer : 16°C
Description : A slender trailing stem taking roots at the node is a. Runner b. Rhizome c. Tuber d. Bulbs
Last Answer : Runner
Description : The example of above ground modified stem is a. stolons b. Corms c. Tuber d. Rhizome
Last Answer : stolons
Description : Which of the following environmental conditions are essential for optimum growth of Mucor on a piece of bread ? A. Temperature of about 25°C B. Temperature of about 5°C C. Relative humidity of about 5% D. Relative humidity of about 95% ... b) A, C and E only (c) A, D and E only (d) B, D and E only
Last Answer : (c) A, D and E only
Description : At a temperature slightly above optimum, carbohydrates are ________: a. Produced b. Stored c. Utilized d. Increased
Last Answer : Utilized
Description : Optimum temperature of DNA polymerase of T. aquaticus is (A) 30°C (B) 37°C (C) 54°C (D) 72°C
Last Answer : Answer : D
Description : Other things being suitable, what level of temperature is considered ideal for optimum growth of banana crop ? (A) 36°C (B) 18°C (C) 30°C (D) 12°C (E) 27°C
Last Answer : (C) 30°C
Description : The optimum temperature for the Banana crop is— (A) 30°C (B) 23°C (C) 21•5°C (D) 26•5°C
Last Answer : (B) 23°C
Description : In citrus, 2n chromosome number is a. 18 b. 22 c. 33 d. 20
Last Answer : 18
Description : Potato dormancy can be broken through a. Chemical treatment b. Low temperature c. Both of these d. None of these
Last Answer : Both of these
Description : For optimum vase life, most cut flowers should be stored at temperatures close to: a. 40 ºF b. 45 ºF c. 30 ºF d. 50 ºF
Last Answer : 40 ºF
Description : In Joule's experiment, an insulated container contains 20 kg of waterinitially at 25°C. It is stirred by an agitator, which is made to turn by a slowly falling body weighing 40 kg through a height of 4 m. The process is repeated ... temperature of water (in °C) is (A) 40.5 (B) 34.4 (C) 26.8 (D) 25
Last Answer : (B) 34.4
Description : 1000 Kg of liquid at 30°C in a well stirred vessel has to be heated to 120°C, using immersed coils carrying condensing steam at 150°C. The area of the steam coils is 1.2 m2 and the overall heat transfer co-efficient to the ... will be (A) 15 min (B) 22 min (C) 44 min (D) 51 min
Last Answer : (D) 51 min
Description : The optimum temperature for the germination of soybean is: (a) 11 OC (b) 20 OC(c) 15 OC (d) 22 OC
Last Answer : (d) 22 OC
Description : Match the following : [IAS 1999] A. Cotton 1. Rainfall 1000-1500 mm; Temperature 40°-60°C B. Flax 2. Rainfall 1500-2000 mm; Temperature 25°-35°C C. Sugarbeet 3. Rainfall 600-S00 mm; Temperature 5°-18°C D. Jute 4. Rainfall 500-1000 mm; ... 1 3 4 2 (b) 2 3 5 4 (c) 4 5 2 1 (d) 4 3 5 2 shop.ssbcrack.com
Last Answer : Ans: (d)
Description : Which of the following vegetable is also called as ‘poor man’s food’? a. Carrot b. Onion c. Redish d. Potato
Last Answer : Onion
Description : “Thalsa” is a variety of potato very suitable for the region of: a. Peshawar b. Tandojam c. Mir Pur Khas d. Sahiwal
Last Answer : Peshawar
Description : Cost benefit ratio in potato production should range: a. 1:5 b. 1:10 c. 10:1 d. Both ‘a’ and ‘b’
Last Answer : Both ‘a’ and ‘b’
Description : Soil compaction __________ yield of potato. a. Increases b. Decreases c. Does not effect d. Unknown
Last Answer : Decreases
Description : Solanum melogena is locally known as : a. Tomato b. Potato c. Egg plant d. Chillie
Last Answer : Egg plant
Description : Which one of the following is a bulb crop: a. Garlic b. Potato c. Ginger d. Arum
Last Answer : Garlic
Description : Which vegetable having high concentration of fats. a. Sweet potato, potato b. Water melon, musk melon c. Cabbage, Cauliflower d. None of above
Last Answer : None of above
Description : Which vegetables consist of more concentration of Vit. A a. Carrot b. Fenogreek c. Potato d. Peas
Last Answer : Carrot
Description : Botanical seed of potato is a. Seed potato b. Potato seed c. None of above d. Slips
Last Answer : Potato seed
Description : Which crop propagated by asexual means: a. Sweet potato b. Chillies c. Cauliflower d. None of above
Last Answer : Sweet potato
Description : Family solanaceae consist of these crops. a. Potato, Tomato, eggplant etc. b. Water melon, muskmelon, cucumber c. Turnip, Raddish, Carrot etc. d. None of above
Last Answer : Potato, Tomato, eggplant etc
Description : Potato belongs to the family a. Umbliferae b. Cucribtacea c. Solanaceae d. Alliaceae
Last Answer : Solanaceae
Description : Buttoning is a disorder of a. Cauliflower b. Peas c. Potato d. Tomato
Last Answer : Cauliflower
Description : Virus free seeds of potato are produced in a. Hilly areas b. Spring crop c. In plains d. Autumn crop
Last Answer : Hilly areas
Description : Potato tubers become green if a. Exposed to light b. Attacked by insect c. Infected d. None of these
Last Answer : Exposed to light
Description : Hollow heart of potato is a a. Disease b. Disorder c. Insect attack d. Deficiency
Last Answer : Disorder
Description : Seed rate/acre in potato for autumn crop is a. 900-1100 Kg b. 500 Kg c. 400 Kg d. 100 Kg
Last Answer : 900-1100 Kg
Description : Dormancy period in potato is about a. 2 Months b. 1 Month c. 3 Months d. ½ Month
Last Answer : 2 Months
Description : Early blight and late blight of potato are a. Fungal disease b. Viral disease c. Bacterial disease d. Disorder
Last Answer : Fungal disease