0 of 21 questions completed
Click on Start Quiz button to take the Online test. Below are some articles to help you prepare for GATE exams.
You can install GATE Mobile App for unlimited online tests with answers.
Read my article on GATE exams for details of exam (eligibility criteria, format etc) and also post your questions or doubts.
Online tests and Books
My article on GATE Mechanical Engineering provides details to crack the exam with ease ( free Online tests, recommended books, detailed syllabus).
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading...
You must sign in or sign up to start the quiz.
You have to finish following quiz, to start this quiz:
0 of 21 questions answered correctly
Time has elapsed
You have reached 0 of 0 points, (0)
- Not categorized 0%
|Table is loading|
|No data available|
- Question 1 of 21
For a fully developed flow of water in a pipe having diameter 10 cm, velocity 0.1 m/s and kinematic viscosity 10−5 (10 to power -5) m2/s, the value of Darcy friction factor isCorrectIncorrect
- Question 2 of 21
In a simple concentric shaft-bearing arrangement, the lubricant flows in the 2 mm gap between the shaft and the bearing. The flow may be assumed to be a plane Couette flow with zero pressure gradient. The diameter of the shaft is 100 mm and its tangential speed is 10 m/s. The dynamic viscosity of the lubricant is 0.1 kg/m.s. The frictional resisting force (in newton) per 100 mm length of the bearing isCorrectIncorrect
- Question 3 of 21
In an air-standard Otto cycle, air is supplied at 0.1 MPa and 308 K. The ratio of the specific heats (γ) and the specific gas constant (R) of air are 1.4 and 288.8 J/kg.K, respectively. If the compression ratio is 8 and the maximum temperature in the cycle is 2660 K, the heat (in kJ/kg) supplied to the
- Question 4 of 21
A reversible heat engine receives 2 kJ of heat from a reservoir at 1000 K and a certain amount of heat from a reservoir at 800 K. It rejects 1 kJ of heat to a reservoir at 400 K. The net work output (in kJ) of the cycle isCorrectIncorrect
- Question 5 of 21
Jobs arrive at a facility at an average rate of 5 in an 8 hour shift. The arrival of the jobs follows Poisson distribution. The average service time of a job on the facility is 40 minutes. The service time follows exponential distribution. Idle time (in hours) at the facility per shift will beCorrectIncorrect
- Question 6 of 21
A metal rod of initial length L0 is subjected to a drawing process. The length of the rod at any instant is given by the expression, L(t) = Lo(1+t*t) , where t is the time in minutes. The true strain rate (in per min) at the end of one minute isCorrectIncorrect
- Question 7 of 21
During pure orthogonal turning operation of a hollow cylindrical pipe, it is found that the thickness of the chip produced is 0.5 mm. The feed given to the zero degree rake angle tool is 0.2 mm/rev. The shear strain produced during the operation isCorrectIncorrect
- Question 8 of 21
For the given assembly: 25 H7/g8, match Group A with Group B
Group A Group B
P. H I. Shaft Type
Q. IT8 II. Hole Type
R. IT7 III. Hole Tolerance Grade
S. g IV. Shaft Tolerance GradeCorrectIncorrect
- Question 9 of 21
If the Taylor’s tool life exponent n is 0.2, and the tool changing time is 1.5 min, then the tool life (in min) for maximum production rate isCorrectIncorrect
- Question 10 of 21
An aluminium alloy (density 2600 kg/m3) casting is to be produced. A cylindrical hole of 100 mm diameter and 100 mm length is made in the casting using sand core (density 1600 kg/m3). The net buoyancy force (in newton) acting on the core is (m3 is meter cube)CorrectIncorrect
- Question 11 of 21
Consider a Poisson distribution for the tossing of a biased coin. The mean for this distribution is a.The standard deviation for this distribution is given byCorrectIncorrect
- Question 12 of 21
Solve the equation x = 10 cos(x) using the Newton-Raphson method. The initial guess is x = pi/4 . The value of the predicted root after the first iteration, up to second decimal, is (pi is constant 3.14)CorrectIncorrect
- Question 13 of 21
A cantilever beam having square cross-section of side a is subjected to an end load. If a is increased by 19%, the tip deflection decreases approximately byCorrectIncorrect
- Question 14 of 21
A car is moving on a curved horizontal road of radius 100 m with a speed of 20 m/s. The rotating masses of the engine have an angular speed of 100 rad/s in clockwise direction when viewed from the front of the car. The combined moment of inertia of the rotating masses is 10 kg-m2. The magnitude of the gyroscopic moment (in N-m) isCorrectIncorrect
- Question 15 of 21
A single degree of freedom spring mass system with viscous damping has a spring constant of 10 kN/m. The system is excited by a sinusoidal force of amplitude 100 N. If the damping factor (ratio) is 0.25, the amplitude of steady state oscillation at resonance is ________mm.CorrectIncorrect
- Question 16 of 21
The spring constant of a helical compression spring DOES NOT depend onCorrectIncorrect
- Question 17 of 21
For a floating body, buoyant force acts at theCorrectIncorrect
- Question 18 of 21
A plastic sleeve of outer radius r0 = 1 mm covers a wire (radius r = 0.5 mm) carrying electric current. Thermal conductivity of the plastic is 0.15 W/m-K. The heat transfer coefficient on the outer surface of the sleeve exposed to air is 25 W/m2-K. Due to the addition of the plastic cover, the heat transfer from the wire to the ambient willCorrectIncorrect
- Question 19 of 21
Which of the following statements are TRUE with respect to heat and work?
(i) They are boundary phenomena
(ii) They are exact differentials
(iii) They are path functionsCorrectIncorrect
- Question 20 of 21
Propane (C3H8) is burned in an oxygen atmosphere with 10% deficit oxygen with respect to the stoichiometric requirement. Assuming no hydrocarbons in the products, the volume percentage of CO in the products isCorrectIncorrect
- Question 21 of 21
Consider two hydraulic turbines having identical specific speed and effective head at the inlet. If the speed ratio (N1/N2) of the two turbines is 2, then the respective power ratio (P1/P2) isCorrectIncorrect