1000+ Mechanical Engineering Interview Questions and Answers Pdf - 2
Question: 6
Weight percentage of which one of the following is determined by proximate analysis of coal?
(A) fixed carbon ad volatile matter
(B) all solid and gaseous components except volatile matter
(C) all solid and gaseous components
(D) fixed carbon, volatile matter, moisture and ash
Ans: D
fixed carbon, volatile matter, moisture and ash
Question: 7
The reheat cycle in steam power plant is mainly adopted to
(A) recovers the waste heat of boiler
(B) decrease the capacity of condenser
(C) decrease the moisture content in low pressure stages to a safe value
(D) improve thermal efficiency
Ans: C
decrease the moisture content in low pressure stages to a safe value
Question: 8
Why is compounding of steam turbines done?
(A) to increase the turbine output
(B) to reduce exit losses
(C) to improve efficiency
(D) to reduce the speed of rotor
Ans: D
to reduce the speed of rotor
Question: 9
In steam and other vapour cycles, the process of removing non-condensable is called
(A) condensation process
(B) deaeration process
(C) exhaust process
(D) scavenging process
Ans: B
deaeration process
Question: 10
A power plant, which uses a gas turbine followed by steam turbine for power generation is called
(A) brayton cycle
(B) bottoming cycle
(C) combined cycle
(D) topping cycle
Ans: C
combined cycle
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