प्रश्न और उत्तर का अभ्यास करें
8प्र: K is 4 times as fast as L and working together, they can complete a work in 24 days. In how many days can L alone complete the work ? 2298 05b5cc774e4d2b4197775003e
5b5cc774e4d2b4197775003e- 130 daystrue
- 240 daysfalse
- 3120 daysfalse
- 480 daysfalse
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 1. "30 days"
व्याख्या :
Answer: A) 30 days Explanation: Given K=4L -->K+L = 4L+L = 5L These 5L people can complete the work in 24 days, which means L alone can do the work in (24 x 5)=120 days. Hence, K alone can do the work in 120/4= 30 days.
प्र: एक थोक व्यापारी ने 40% की हानि पर एक वॉटर प्यूरिफाइर बेचा। यदि विक्रय मूल्य में 125 रूपये की वृद्धि की गई तो व्यापारी को 10% का लाभ प्राप्त होता है। तो प्यूरिफाइर का क्रय मूल्य कितना होगा?
2298 05ee05cab3f1add232d832452
5ee05cab3f1add232d832452- 1Rs. 250true
- 2Rs. 225false
- 3Rs. 275false
- 4Rs. 300false
- उत्तर देखेंउत्तर छिपाएं
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- SingleChoice
उत्तर : 1. "Rs. 250 "
प्र: किसी कूट भाषा में , CROWNED को APMULCB से कूटित करते है , तो CAMPUS शब्द को कैसे कूटित किया जाएगा ?
2298 05ed9c566b516791f2653a06b
5ed9c566b516791f2653a06b- 1AYKMSQfalse
- 2AYKNSQtrue
- 3AZKMSPfalse
- 4AYLMSQfalse
- उत्तर देखेंउत्तर छिपाएं
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उत्तर : 2. "AYKNSQ "
प्र:Read the passage carefully and chose the correct answer to each blank out of the four alternatives.
The ___(a)___ age is the age of machines. From the ___(b)___ the Industrial Revolution began in Europe.
Man’s life has been changing___ (c)___ many ways. At first the change was ___(d)___. Now machines have become ____(e)___ of our daily lives.
Choose the correct answer for option (a).
2298 05fbde0d54d67184d07bf059a
5fbde0d54d67184d07bf059a- 1moderntrue
- 2newfalse
- 3civilizedfalse
- 4presentfalse
- उत्तर देखेंउत्तर छिपाएं
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उत्तर : 1. "modern"
प्र: The purpose of choke in tube light is 2298 05b5cc6a6e4d2b4197774cd28
5b5cc6a6e4d2b4197774cd28- 1Induce high voltagetrue
- 2Induce low resistancefalse
- 3Induce high resistancefalse
- 4Induce low voltagefalse
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 1. "Induce high voltage"
व्याख्या :
Answer: A) Induce high voltage Explanation: When the switch is ON, in a tube light choke is nothing but the coil/ballast ( inductor) which is used to induce the high voltage across it. as we know that inductor has property to induce high voltage for the brief period of time, this high voltage is required to ionize the gases in the starter. Then gas inside the starter gets ionized due to this full voltage and heats the bimetallic strip that is caused to be bent to connect to the fixed contact. Current starts flowing through the starter. Although the ionization potential of the neon is the little bit more than that of the argon but still due to small electrode gap high voltage gradient is appeared in the neon bulb and hence glow discharge is started first in a starter. As voltage gets reduced due to the current causes a voltage drop across the inductor, the strip cools and breaks away from the fixed contact. At that moment a large L di/dt voltage surge comes across the inductor at the time of breaking. This high valued surge comes across the tube light electrodes and strikes penning mixture (mixture argon gas and mercury vapor). Gas discharge process continues and current gets the path to flow through the tube light gas only due to low resistance as compared to the resistance of starter.
प्र: मूल्य सिद्धांत को इस नाम से भी जाना जाता है –
2298 05dfca5eda3197573ca592ab6
5dfca5eda3197573ca592ab6- 1समष्टि अर्थशास्त्रfalse
- 2विकास अर्थशास्त्रfalse
- 3सार्वजनिक अर्थशास्त्रfalse
- 4सूक्ष्म अर्थशास्त्रtrue
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 4. "सूक्ष्म अर्थशास्त्र"
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 1. "eased"
प्र: Devaluation of currency can correct a Balance of Payments deficit because___ 2298 05c652574c5860623ed081603
5c652574c5860623ed081603- 1It lowers price of exports in foreign currency and rises price of imports in home currencytrue
- 2It raises price of exports in foreign currency and lowers price of imports in home currencyfalse
- 3It raises price of exports and imports in foreign currencyfalse
- 4It lowers price of exports and imports in home currencyfalse
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice

