Mechanical Engineering Quiz 27
1 / 50
Which of the following is a water tube boiler_________________?
2 / 50
If two moving elements have surface contact in motion, such pair is known as_________________?
3 / 50
TMU in method time measurement stands for__________________?
4 / 50
A gas is compressed in a cylinder by a movable piston to a volume one-half its original volume. During the process 300 kJ heat left the gas and internal energy remained same. The work done on gas in Nm will be___________________?
5 / 50
Measurement of temperature is based on_________________?
6 / 50
In the case of steady flow of a fluid, the acceleration of any fluid particle is________________?
7 / 50
PERT is the__________________?
8 / 50
Superheating of steam is done at_________________?
9 / 50
The air-fuel ratio in gas turbines is of the order of ______________________?
10 / 50
The safety valve at superheater as compared to drum safety valve setting is set at___________________?
11 / 50
The units of moment of inertia of mass are ________________?
12 / 50
The weight per horse power ratio for gas. turbine as compared to I.C engine and steam turbine is________________?
13 / 50
The efficiency and work ratio of a gas turbine plant can be increased by _____________________?
14 / 50
The speed of sound in a ideal gas varies directly as its__________________?
15 / 50
Pour point of fuel oil is the____________________?
16 / 50
Compressive strength of grey cast iron in tonnes/cm is of the order of___________________?
17 / 50
A gas turbine used in air craft should have______________________?
18 / 50
Cross head and guides form a _________________?
19 / 50
To reduce the possibility of knock in the C.I. engines, the first elements of fuel and air should have_______________?
20 / 50
A low unit cost can be obtained by following____________________?
21 / 50
The combustion efficiency of a gas turbine using perfect combustion chamber is of the order of________________?
22 / 50
A reversible change in the atomic structure of the steel with a corresponding change in the properties is known as_________________?
23 / 50
Which of the following disciplines provides study of the relative motion between the parts of a machine and the forces acting on the parts__________________?
24 / 50
The strap end of a connecting rod of steam engine is joined by_________________?
25 / 50
For reversible adiabatic process, change in entropy is_________________?
26 / 50
Allowable pressure on high-pressure side or ammonia absorption system is of the order of_________________?
27 / 50
The specific fuel consumption of a petrol engine compared to diesel engine of same H.P. is_______________?
28 / 50
The torsional rigidity of a shaft is expressed by the_______________?
29 / 50
Which of the following represents the allotropic forms of iron__________________?
30 / 50
Under-cooling in a refrigeration cycle_________________?
31 / 50
In a non-flow reversible process for which p = (- 3V+ 15) x 105N/m2,V changes from 1 m to 2 m3. The work done will be about_______________?
32 / 50
The magnitude of tangential acceleration is equal to____________________?
33 / 50
The materials having same elastic properties in all directions are called________________?
34 / 50
The material commonly used for air craft gas turbine is__________________?
35 / 50
The units of kinematic viscosity are____________________?
36 / 50
With increase in load, convection superheater has_______________________?
37 / 50
An economiser in a boiler______________________?
38 / 50
The presence of sulphur in pig iron makes__________________?
39 / 50
The high pressure boiler is oiie producing steam at a pressure more than_________________?
40 / 50
For a kinematic chain to be considered as mechanism___________________?
41 / 50
In a PERT chart___________________?
42 / 50
The value of COP in vapour compression cycle is usually__________________?
43 / 50
A big advantage of PERT over Gantt charts is that in the former case_________________?
44 / 50
In an immersed body, centre of pressure is __________________?
45 / 50
For S.H.M. cam, the acceleration of the follower at the ends of the stroke and aimidstroke respectively, is__________________?
46 / 50
The part of the coupling that actually transmits power and rotation from one shaft to the other shaft is_________?
47 / 50
According to law of triangle of forces __________________ ?
48 / 50
In a centrifugal pump casing, the flow of water leaving the_______________?
49 / 50
The objective of time study is to determine the time required to complete a job by_______________?
50 / 50
A tap bolt_____________________?
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