Time Left - 20:00 mins

ISRO Mechanical Exam 2017: Weekly Toppers Quiz 3

Attempt now to get your rank among 670 students!

Question 1

In a certain ideal refrigeration cycle, the COP of the refrigerator is 3. The cycle under ideal conditions running as heat engine will have efficiency equals to

Question 2

A copper bar of 25 cm length is fixed by means of supports at its ends. Supports can yield (total) by 0.01 cm. If the temperature of the bar is raised by 100 °C, then the stress induced in the bar for if α_c = 20×10^-6/°C and E_c = 0.5×10⁵ MPa will be

Question 3

Find the differential equation whose solution represents the family $Description: E:\Gate\SSC JE Mechanical Part 1\Made Easy Questions\05_Engg-Math_BLok_files\image105.png$ .

Question 4

In a single degree damped vibrating system, the logarithmic decrement is 0.278. Mass of the vibrating body is 10 kg and spring stiffness is 1000 N/m. The damping constant in N/m/s is________.

Question 5

In orthogonal cutting the depth of cut is 0.5 mm at a cutting speed of 3 m/s. If the chip thickness is 0.75 mm, the Chip velocity is _____.

Question 6

Consider the following system of equations:
2x₁ + x₂ + x₃ = 0,
x₂ - x₃ = 0,
x₁ + x₂ = 0.
This system has

Question 7

Large speed reductions (greater than 20) in one stage of a gear train are possible through

Question 8

In order to have interfernce fit, it is essential that the lower limit of the shaft should be

Question 9

When t₀₁ and t₀₂ are the temperature of cold fluid at entry and exit respectively and $Description: Description: E:\Gate\SSC JE Mechanical Part 1\Made Easy Questions\08_Heat-Transfer_BLok_files\image005.png$ are the temperature of hot fluid at entry and exit point, and cold fluid has lower heat capacity rate as compared to hot fluid then effectiveness of the heat exchanger is given by

Question 10

It is observed that a bus is moving with a speed of 90km/hr loses it brakes. If the driver happens to carry the bus into the runaway hill, then how will the vehicle travel before it comes to a stop?

Question 11

The case hardening of gear components of machine tools is done by

Question 12

Assuming i = √-1 and t is a real number,

is;

Question 13

The determinant of the given matrix is _________.
$Description: E:\Gate\SSC JE Mechanical Part 1\Made Easy Questions\05_Engg-Math_BLok_files\image127.png$

Question 14

For the configuration shown, the minimum head H in the vessel will be
[Take C_v=1]
$Description: Description: E:\Gate\SSC JE Mechanical Part 1\Made Easy Questions\07_Fluid-Mechanics_BLok_files\image006.png$

Question 15

A weight of 500 N is supported by two metallic ropes as shown in the figure. The values of tensions T₁ and T₂ are respectively

670 attempts
4 upvotes
11 comments

Tags :

ESE & GATE ME General

Feb 4ESE & GATE ME