Bissoy.com
Doctors Medicines MCQs Q&A

Which type of air preheater is often preferred at thermal stations?

Which type of air preheater is often preferred at thermal stations? Correct Answer Regenerative heater

In the regenerative heater same surface is alternately heated and cooled by the air and gas steams through respective operating cycles. These are often preferred in thermal station due to its compactness, accessibility and reduced weight.

Related Questions

How does a host on an Ethernet LAN know when to transmit after a collision has occurred?
1. In a CSMA/CD collision domain, multiple stations can successfully transmit data simultaneously.
2. In a CSMA/CD collision domain, stations must wait until the media is not in use before transmitting.
3. You can improve the CSMA/CD network by adding more hubs.
4. After a collision, the station that detected the collision has first priority to resend the lost data.
5. After a collision, all stations run a random backoff algorithm. When the backoff delay period has expired, all stations have equal priority to transmit data.
Consider the following statements in connection with deflection-type and null-type instruments: 1. Null-type instruments are more accurate than the deflection-type ones. 2. Null-type of instrument can be highly sensitive compared to a deflection-type instrument. 3. Under dynamic conditions, null-type instruments are less preferred to deflection-type instruments. 4. Response is faster in null-type instruments as compared to deflection-type instruments. Which of the above statements are correct?
In the following question, sentences of a paragraph have been jumbled and labelled as A, B, C and D. You are required to rearrange the jumbled sentences of the paragraph and mark your response accordingly by selecting the correct option. A: Air conditioning is the process of removing heat and moisture from the interior of an occupied space to improve the comfort of occupants. Air conditioning can be used in both domestic and commercial environments.  B: Electric refrigerant-based AC units range from small units that can cool a small bedroom, which can be carried by a single adult, to massive units installed on the roof of office towers that can cool an entire building. C: Air conditioners often use a fan to distribute the conditioned air to an enclosed space such as a building or a car to improve thermal comfort and indoor air quality.  D: This process is most commonly used to achieve a more comfortable interior environment, typically for humans and other animals.
The color preferences of a group of girls were mapped and the results were as follows: 20 preferred pink, 16 preferred red and 14 preferred green. 5 preferred all the three colours. 9 of them chose Pink and Green. 7 of them chose Pink and Red. 8 of them chose Red and Green. How many girls chose only one colour?
Which of the following statements about hill stations of colonial India is/are correct? 1. The architecture of hill stations sought to recreate the European style 2. Hill stations were developed as sanitariums where soldiers were treated for the illness 3. Shimla became the official residence of the Commander in Chief of the Indian army 4. In 1864, Shimla had to be evacuated because of a Typhoid epidemic Select the correct answer using the code given below:
A train shuttles between stations A and B, and stops at 5 intermediate stations for 5 mins each. Assume that the stations are at equal intervals of 10 km, and the train is moving at a speed of 50 kmph, how long will it take to reach B ?
A train shuttles between stations A and B, and stops at 5 intermediate stations for 5 mins each. Assume that stations A and B are  60 km apart, and the train is moving at a speed of 50 kmph, how long will it take to reach B?
Which of the following is NOT a valid type of air preheater?
In the question given below, four sentences are given which may or may not be grammatically correct. From the given options, choose the grammatically correct sentence. A. Literature often portrayed children as one-dimensional, but children are as complex as adults. B. Literature often portrays children as one-dimensional, but children are as complex as adults. C. Literature often portrays children as one-dimensional, but children are so complex as adults. D. Literature often portrays children as one-dimensional, but children are more complex as adults. 
Consider the following grammar and the semantic actions to support the inherited type declaration attributes. Let X1, X2, X3, X4, X5 and X6 be the placeholders for the non-terminals D, T, L or L1 in the following table: Production rule Semantic action D → T L X1.type = X2.type T → int T.type = int T → float T.type = float L → L1, id X3.type = X4.type addType(id.entry, X5.type) L → id addType(id.entry, X6.type)   Which one of the following are the appropriate choices for X1, X2, X3 and X4?