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