GATE 2021 ME : Toppers Quiz 16 (App update required to attempt this test) for ESE & GATE ME Exams

Question 1

In a vapour compression refrigeration cycle for making ice, the condensing temperature for higher COP

Question 2

If the speed of the engine varies between 80 rpm and 100 rpm in a cycle of operation, then the coefficient of fluctuation of speed will be

Question 3

A block is projected along a rough horizontal road with a speed of 10 m/s. If the coefficient of kinetic friction is 0.10, how far it travel before coming to rest?

Question 4

What are the key functions of a master schedule?
1). To generate material and capacity requirements
2). To maintain valid priorities
3). An effective capacity utilization
4).Planning the quantity and timing of output over the intermediate time horizons
Select the correct answer using the codes given below:

Question 5

Which one of the following is correct, when a nut is tightened by placing a washer below it, the bolt will be subjected to _________.

Question 6

The speed of an engine varies from ω₁ to ω_2.(ω₁ >ω₂) Ifω₁ = 210 rad/s & change in kinetic energy during cycle is 650 Nm. then find ω₂if inertia of the flywheel is 0.2 kg-m².

Question 7

Choose the correct relationship between COP of refrigerator and Heat Pump.

Question 8

A steady incompressible flow field is given by

The convective acceleration along x-direction at point (1, 2) is

Question 9

For giving desired shapes to the products, which of the following process is NOT used in a smithy shop?

Question 10

The tendency of petrol to detonate in terms of octane number is determined by comparison of fuel with which of the following?

Question 11

A 400 m long horizontal pipe is to deliver 1000 kg of oil (s = 0.9, ν = 0.0002 m2/s) per 60 seconds. If the head loss is not to exceed 800 cm of oil, the pipe diameter is _____ m.
[Friction factor for laminar flow : f = 64/Re]

Question 12

A cantilever beam is supported by spring at the free end as shown in figure. It is loaded by an external force of 30kN at the free end. The stiffness of the spring is 150N/mm. The length of beam is 1.5m and Modulus of elasticity is 200GPa. The beam is circular with cross section of 40mm. The deflection of beam is

Question 13

Consider the following statements regarding fins:

(A). A fin is more effective if Biot number is less than one.

(B). A fin is less effective if Biot number is less than one.

(C). Fin will act as an insulation for a surface if h > mk.

(D). fin will enhance heat transfer if h > mk.

Which of the following statements are correct _________?

Question 14

A feasible solution of a linear programming problem

Question 15

For a glass plate transmissivity and reflectivity are specified as 0.76 and 0.08 respectively, the absorptivity of the glass plate is ___________.

Question 16

A dummy activity is used in PERT network to describe _______.

Question 17

A steel casting is made with the help of aluminium pattern and aluminium pattern is made up of wooden pattern. The dimensions of steel block required are

and pattern allowance of steel is 20mm in every meter of length and that of aluminum is 13mm in every meter of length. Then the height of wooden pattern required is _______mm. (correct up to 2 decimal places)

Question 18

In an air-standard Otto cycle the compression ratio is 7. If the inlet temperature is 400K. Calculate the temperature at the end of heat addition process provided heat added is 236.10 kJ/kg.

Question 19

A hydraulic press has a ram of 20 cm diameter and a plunger of 5 cm diameter. The weight (in KN) lifted by the hydraulic press when the force applied at the plunger is 700 N is ____.

Question 20

The psychrometric chart graphically represents: