- (A) more heating surface
- (B) less heating surface
- (C) equal heating surface
- (D) heating surface depends on other parameters
- (E) none of the above
Mechanical Engineering Mcqs
- (A) increases
- (B) decreases
- (C) remains unchanged
- (D) increases/decreases depending on steam temperature requirements
- (E) unpredictable
- (A) corrosion
- (B) scale
- (C) carryover
- (D) embrittlement
- (E) all of the above
- (A) regulate flow of boiler water
- (B) check level of water in boiler drum
- (C) recirculate unwanted feed water
- (D) allow high pressure feed water to flow to drum and not allow reverse flow to take place
- (E) none of the above
- (A) convection
- (B) radiation
- (C) conduction
- (D) radiation and conducton
- (E) radiation and convection
- (A) various chemical constituents, carbon, hydrogen, oxygen etc, plus ash as per-cents by volume
- (B) various chemical constituents, carbon, hydrogen, oxygen, etc, plus ash as per-cents by weight
- (C) fuel constituents as percents by volume of moisture, volatile, fixed carbon and ash
- (D) fuel constituents as percents by weight of moisture, volatile, fixed carbon and ash
- (E) moisture and ash free heating value
- (A) same value
- (B) higher value
- (C) lower value
- (D) lower/higher depending on steam flow
- (E) unpredicatble
- (A) temperature, time, and turbulance
- (B) total air, true fuel, and turbulance
- (C) thorough mixing, total air, and temperature
- (D) total air, time, and temperature
- (E) none of the above
- (A) higher effectiveness of boiler
- (B) high calorific value coal being burnt
- (C) fouling of heat transfer surfaces
- (D) raising of steam temperature
- (E) leakage of air
- (A) same
- (B) more
- (C) less
- (D) less or more depending on size of boiler
- (E) unpredictable
