Time Left - 12:00 mins

BARC OCES 2022 Quiz 10

Attempt now to get your rank among 278 students!

Question 1

A carnot heat pump works between temperature limits of 177 ºC and 27 ºC. Its COP is __.

Question 2

Determine the Logrithmic mean temperature difference for a counter flow heat exchanger. Following data is to be considered :
Temperatures at the inlet of a hot and cold fluid = 150℃ and 30℃
Outlet of a hot and cold fluid = 95℃ and 40℃

Question 3

The equation x³ – x² + 4x – 4 = 0 is to be solved using the Newton Raphson method. If x = 2 is taken as the initial approximation of the solution, then the next approximation using this method will be:

Question 4

In an ideal Brayton cycle, atmospheric air (ratio of specific heats, $Description: D:\GradeStack Courses\GATE Tests (Sent by Ravi)\GATE-ME-2014-Set-2_files\image179.png$ specific heat at constant pressure = 1.005 kJ/kg.K) at 1 bar and 300 K is compressed to 8 bar. The maximum temperature in the cycle is limited to 1280 K. If the heat is supplied at the rate of 80 MW, the mass flow rate (in kg/s) of air required in the cycle is

Question 5

The value of tensions T1 and T2 in the string are respectively,
$Description: E:\Gate\SSC JE Mechanical Part 1\Made Easy Questions\10-RAC-Engg-Mechanics_BLok1_files\image002.jpg$

Question 6

The demand for a commodity is 100 units per day. Every time an order is placed, a fixed cost of 800 is incurred. Holding cost is 0.16 per unit per day. If the lead time is 2 days, the reorder point is

Question 7

A big stone has 60% of its volume projecting above the surface of the sea. The sea water density is 1025 kg/m³. The density of stone is

Question 8

The flatness of a machine bed can be measured using _________.

Question 9

The Reynolds number for turbulent flow in pipes is _____

Question 10

A simply supported circular beam of diameter 30 mm uniformly loaded over the length shows the maximum deflection at centre as 7.5 mm. The beam is now replaced with another circular beam of diameter 40mm. The deflection in the current beam is

278 attempts
0 upvotes
0 comments

Tags :

ESE & GATE ME General

Mar 16ESE & GATE ME