Mechanical Engineering Quiz 33
1 / 50
The example of lower pair is_______________?
2 / 50
Detonation can be controlled by_____________________?
3 / 50
The value of Prandtl number for air is about _______________________?
4 / 50
In heat exchangers, degree of approach is defined as the difference between temperatures of________________?
5 / 50
Pearlite is a combination of___________________?
6 / 50
High specific speed of a pump implies it is_____________________?
7 / 50
Maximum percentage of carbon in austenite is______________?
8 / 50
Piezometer is used to measure_____________________?
9 / 50
The dry saturated steam at very high pressure (150-200 kg/cm2) when throttled to atmosphere will become_______________?
10 / 50
Which one of the following statements is not correct_________________?
11 / 50
Atmospheric pressure is equal to____________?
12 / 50
A stud________________________?
13 / 50
The ultimate strength of steel in tension in comparison to shear is in the ratio of__________________?
14 / 50
Which of the following element results in presence of free graphite in C.I_________________?
15 / 50
Critical pressure of a liquid is the pressure_________________?
16 / 50
The thermal efficiency of a two cycle engine as compared to four cycle engine is_________________?
17 / 50
For better COP of refrigerator, the pressure range corresponding to temperature in evaporator and condenser must be____________________?
18 / 50
Ignition quality of diesel-fuel oil is expressed by an index called__________________?
19 / 50
Mercury does not wet glass. This is due to property of liquid known as__________________?
20 / 50
Positive slack on a PERT indicates that project is________________?
21 / 50
In a single casing, multistage pump running at constant speed, the capacity rating is to be slightly lowered It can be done by_______________?
22 / 50
Which of the following is not a vector quantity __________________?
23 / 50
Fighter bombers use following type of engine __________________?
24 / 50
A pair of smith?s tongs is an example of the lever of__________________?
25 / 50
By severely deforming a metal in a particular direction it becomes _________________?
26 / 50
Reducing suction pressure in refrigeration cycle_________________?
27 / 50
Crowning on pulleys helps__________________?
28 / 50
The unit of time in S.I. units is__________________?
29 / 50
For minimum work in multistage compression, assuming same index of compression in all stages_________________?
30 / 50
Pitot tube is used for measurement of_________________?
31 / 50
According to which law, all perfect gases change in volume by l/273th of their original volume at 0?C for every 1?C change in temperature when pressure remains constant ____________________?
32 / 50
In hydrostatic bearings ____________________?
33 / 50
The velocity of any point in mechanism relative to any other point on the mechanism on velocity polygon is represented by the line________________?
34 / 50
The nuclear energy is measured as__________________?
35 / 50
Change in enthalpy in a closed system is equal to heat transferred if the reversible process takes place at constant________________?
36 / 50
The capacity of a compressor is 5 m /mih. 5 m /min refers to_______________?
37 / 50
Surveying tapes are made of a material having low coefficient of expansion and enough strength. The alloy used is__________________?
38 / 50
Refrigeration in aeroplanes usually employs the following refrigerant___________________?
39 / 50
Cast iron is characterised by minimum of following %age of carbon_________________?
40 / 50
During throttling process___________________?
41 / 50
The fusible plug in small boilers is located ________________?
42 / 50
Typewriter constitutes__________________?
43 / 50
A cam mechanism imparts following motion___________________?
44 / 50
The centre of gravity of the volume of the liquid displaced by an immersed body is called ___________________?
45 / 50
Which of the following meters is not associated with viscosity____________________?
46 / 50
In petrol engine, increase of cooling water temperature will_________________?
47 / 50
Thermal power plant works on______________?
48 / 50
The steam temperature with increase in load in case of a boiler fitted with radiation super heater________________?
49 / 50
An eccentric sheave pivoted at one point rotates and transmits oscillatory motion to a link whose one end is pivoted and other end is connected to it. This mechanism has___________________?
50 / 50
In petrol engines, the maximum power is developed corresponding to relative fuel air ratio of________________?
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