MECHANICAL ENGINEERING.

Search This Blog

Contact us.

Get link
Facebook
X
Pinterest
Email
Other Apps

If you find any problems in content then:

Call us :8106697749
7898947749
E-mail:t.rajkumar355@gmail.com

Get link
Facebook
X
Pinterest
Email
Other Apps

Comments

RATIOS and MIXTURES important questions

Ratios and Mixtures: अनुपात और मिश्रण: Q1) Milk and water in two glasses are in ratio 2:3 and 7:9 respectively. Then what would be the milk water ratio in the glass in which first two mixture are to be added and end mixture should have equal proportion of milk and water? SOLUTION : NOTE: In this question quantity of solution is not give so we need to assume equal proportion इस प्रेसन मे मात्रा नही दिया गया है, इसलिए सभी बर्तनो मे समान मात्रा मे मिश्रण है, कहके मानना होगा. Milk water First glass 2L 3L (given in Q) पहला बर्तन Second glass 7L 9L (given in Q) दूसरा बर्तन Third glass xL ...

Important questions in Thermodynamics.

Solutions for imp Question of Termal . Q1) Solution: Let heat added is=Q Then, heat rejected is=0.8×Q So, net work done(W) =Qadd-Qrej W =Q-0.8×Q W =0.2Q And efficiency =(net work/heat added) =0.2Q/Q =20% efficiency of heat engine = [1/(1+COPref)] ie 0.2=[1/(1+COPref)] COP ref=(1/0.2)-1 ...

Work and time

Work and Time: Are you searching for work and time topic of aptitude? Read upto last word you will definitely clear you concept and doubts. Work and Time problems are one of the important topics for all competitive exams. Work and time problem is somewhat difficult than remaining topics of aptitude. We searched a lot over this and made a material that is sufficient to solve any kind of work and time problems in very simple way and in less time than all other methods. So let us enter the Work and Time Topic: *Note: *1) Number men(M) working on the project is inversely proportional to number of HOURS per day(H) and number of DAYS(D) to complete the project. If work is the same but number od MEN(M) is 'increased' then number of DAYS(D) required to complete the project "decreases". And HOURS per day(H) also decreases. *2)Work content(W) is directly proportional to number of MEN(M), DAYS(D) and Hours per day(H). So if work content increases then numbe...

Powered by Blogger

Contact us.

Comments

Post a Comment