प्रश्न और उत्तर का अभ्यास करें
8प्र: The ratio of Karthik’s and Kalyan’s ages is 4: 5. If the difference between the present age of Kalyan and the age of Karthik 5 years hence is 3 years, then what is the total of present ages of Karthik and Kalyan? 3120 05b5cc77fe4d2b419777501a1
5b5cc77fe4d2b419777501a1- 156 yearsfalse
- 262 yearsfalse
- 369 yearsfalse
- 472 yearstrue
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उत्तर : 4. "72 years"
व्याख्या :
Answer: D) 72 years Explanation: Let us consider Karthik as K1 and Kalyan as K2. Given k18+k1 and K2 - (K1 + 5) = 3 K2 - K1 = 8 K2 = 8 + K1 Now, k18+k1= 45 => K1 = 32 years Therefore K2 = 40 years. K1 + K2 = 72 years.
प्र: किसके कारण प्लास्टर ऑफ पेरिस जमता है ?
3120 05e57937fbeb8f66e4487674d
5e57937fbeb8f66e4487674d- 1कार्बन डाईऑक्साइडfalse
- 2हाइड्रोलाइसिसfalse
- 3हाइड्रेशनfalse
- 4डी - हाइड्रेशनtrue
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उत्तर : 4. "डी - हाइड्रेशन "
प्र: निम्नलिखित में से कौन इंटरनेट का अग्रदूत था?
3120 05ef972f0ef2488485ce5a529
5ef972f0ef2488485ce5a529- 1ARPANETtrue
- 2PANETfalse
- 3ANETfalse
- 4APNETfalse
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उत्तर : 1. "ARPANET"
प्र:In these questions read each sentence to find out whether there is any error in it. If there is no error, the answer is (D).
The new device (A)/ aims at eliminating (B)/ the risk of short-circuiting .(C) /No error (D).
3120 05f3113fdc006da57832aaa52
5f3113fdc006da57832aaa52- 1Afalse
- 2Ctrue
- 3Bfalse
- 4Dfalse
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उत्तर : 2. "C"
व्याख्या :
using Only Short-circuit
प्र:Choose the alternative which shows the correct translation from Hindi to English
मोहन घर से लौटकर कहने लगा कि उसका मन नहीं लग रहा था। वाक्य का सही अंग्रेजी रूपांतरण है
3119 05e5f7cf4860fb849c8e97bcf
5e5f7cf4860fb849c8e97bcf- 1When returning from home, he said that he was feeling giddyfalse
- 2While returning from home, he said that he was feeling giddyfalse
- 3On returning from home, he said that he was feeling nostalgicfalse
- 4None of thesetrue
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उत्तर : 4. "None of these"
प्र: Which of the following statements is incorrect about the Planet Mars? 3119 05c78ea23eee6235918b5d7dd
5c78ea23eee6235918b5d7dd- 1It has two permanent polar ice capsfalse
- 2After the Moon, it is the brightest object in our night skytrue
- 3Liquid water cannot exist on the surface of Mars due to low atmospheric pressurefalse
- 4Mars is less dense than Earthfalse
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उत्तर : 2. "After the Moon, it is the brightest object in our night sky"
प्र: Which statement best describes Arteries? 3118 05b5cc6a5e4d2b4197774ccb0
5b5cc6a5e4d2b4197774ccb0- 1They have thin walls and transport blood away from the heartfalse
- 2They have thick walls and transport blood toward the heartfalse
- 3They have thin walls and transport blood toward the heartfalse
- 4They have thick walls and transport blood away from the hearttrue
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उत्तर : 4. "They have thick walls and transport blood away from the heart"
व्याख्या :
Answer: D) They have thick walls and transport blood away from the heart Explanation: Because arteries have to have thick walls for use of protection. Its when you get to veins where the walls get thinner. And the use of the heart is to pump blood to all of the cells and organs in the body so it would be to transport blood away from the heart. i.e. Arteries = Away from the Heart Veins = Back to the Heart.
प्र: स्वाति और अपर्णा की आयु का गुणनफल 120 है। यदि अपर्णा की आयु का तिगुना,स्वाति की आयु से 2 साल ज्यादा है। तो स्वाति की आयु ज्ञात कीजिये?
3118 05ee05c5aca41b347ed33045b
5ee05c5aca41b347ed33045b- 118true
- 220false
- 324false
- 416false
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