TOP MCQ
APPLIED THERMODYNAMICS OBJECTIVE TYPES QUESTIONS WITH ANSWERS.
Here may be a list of Top MCQ of Applied Thermodynamics Objective Type Questions And Answers provided for the AKTU and ALL OTHER UNIVERSITIES EXAMINATIONS . All the MCQ questions are most vital for AKTU especially. These sort of Objective questions are going to be asked in Diploma and Degree Internal Examinations.
1.
Steam turbines are controlled by the following methods
(a) Throttle controls
(b) Nozzle control
(c) Regulating bypass
(d) all of the above
2.
In steam turbines the heating factor
(a) increases with increasing numbers
(b) decreases with increasing numbers
(c) remain the same regardless of the number of levels
(d) none of the above
3.
The thermal efficiency of the engine with condenser compared to without
condenser, for specific
pressure and steam temperature
(a) higher
(b) lower
(c) the same as long as the initial pressure and
temperature remain unchanged
(d) none of the above
4.
In jet type condensers
(a) cooling water passes through pipes and is surrounded
by steam
(b) steam passes through pipes and is surrounded by
cooling water
(c) steam and cooling water mixture
(d) cooling water and steam doesn't mix.
5.
In shell and tube surface condenser
(a) a mixture of steam and cooling water to dispense the
condensate
(b) cooling water passes through the tubes and
is surrounded by steam
(c) steam passes through the cooling tubes and cooling
water around them
(d) all of the above vary by situation
6.
In a surface condenser if air is removed, yes
(a) drop in total weight maintained in
condenser
(b) an increase in total weight maintained in a condenser
(c) no change in total pressure in the condenser
(d) increase in thick steam temperature
7.
The cooling section in the surface condenser
(a) increases the amount of valve excreted with air
(b) reduces the amount of valves taken out by
air
(c) does not affect the size of valves removed but
reduces the pumping capacity of an air extraction pump
(d) none of the above
8.
Edward's air pump
(a) removes air and also vapor from a condenser
(b) removes air only from a condenser
(c) remove only non-compressed valves from a condenser
(d) removing air along with vapor and also the
thick water from a condenser
9.
In a steam power plant, it is a condenser function
(a) to maintain pressure under atmosphere to increase
work output from the prime minister
(b) the acquisition of large heaps of steam from a major
steam carrier
(c) condensing large amounts of steam into water which
can be reused in a boiler
(d) all of the above
(a) there is one pump for removing air and condensate
(b) there are two pumps for removing air and
condensate
(c) there are three pumps for removing air, valves and
condensate
(d) in the absence of a pump, the condensate is removed
by gravity
11.
There is an evaporative condenser type
(a) steam in water-filled pipes
(b) steam-piped water in pipes
(c) either (a) or (b)
(d) none of the above
12.
Steam-carrying pipes are generally made up
(a) steel
(b) iron
(c) copper
(d) aluminum
13.
For the safety of a steam boiler the number of safety valves is appropriate
(a) four
(b) three
(c) two
(d) any
14.
Steam turbines are commonly used in a steam power station
(a) type of condensation
(b) type of non-condensation
(c) none of the above
15.
A belt conveyor can be used to transport coal at upto inclines
(a) 30 °
(b) 60 °
(c) 80 °
16.
The maximum length of a screw conveyor is about
(a) 30 meters
(b) 40 meters
(c) 60 meters
17.
The efficiency of modern boiler by using of coal and heating equipments
(a) 25 to 30%
(b) 40 to 50%
(c) 65 to 70%
(d) 85 to 90%
18.
The average ash content in Indian contemporaries is about
(a) 5%
(b) 10%
(c) 15%
(d) 20%
19.
There is a loading station in a power station
(a) the center of coalfields
(b) center of maximum load of equipment load
(c) the center of gravity of the electrical
system
20.
A steam power station has a steam pressure, which is usually kept in order
today
(a) 20 kgf / cm2
(b) 50 kgf / cm2
(c) 100 kgf / cm2
(d) 150 kgf / cm2
21.
Economists improve the efficiency of a boiler by
(a) 1 to 5%
(b) 4 to 10%
(c) 10 to 12%
22.
The large turbo generators capacity varies from?
(a) 20 to 100 MW
(b) 50 to 300 MW
(c) 70 to 400 MW
23.
Cooking coal is those a
(a) burn completely
(b) firing freely
(c) do not produce ashes
(d) create coke lumps or masses
24. The main air of that air is used
(a) reduce the length of the flame
(b) increase the length of the flame
(c) transport and dry the coal
(d) carry air around burners to obtain the best
combination
25.
Secondary air is the air used
(a) reduce the length of the flame
(b) increase the length of the flame
(c) transport and dry the coal
(d) aerate the combustion to obtain the best
combination
26.
At a coal preparation plant, magnetic dehumidifiers are used for removal
(a) dust
(b) clinkers
(c) iron fragments
(d) sand
27.
The carrying capacity of belt carriers is about
(a) 20 to 40 tons / hr
(b) 50 to 100 tons / hr
(c) 100 to 150 tons / hr
(d) 150 to 200 tonnes / hour
28.
It is the most commonly used method of loading coal for small power plants
(a) lorry construction
(b) coal accelerators
(c) tower masts
29.
Bucket lifts are used
(a) carrying coal in a horizontal direction
(b) carrying coal in a direct direction
(c) carrying coal in any direction
30.
The amount of air provided for a complete comb is called
(a) main air
(b) secondary air
(c) tertiary air
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