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SSC-JE ME || IC Engine 1

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Question 1

Otto cycle efficiency is higher than Diesel cycle efficiency for the same compression ratio and heat input because, in Otto cycle

Question 2

An engine is required 150 kW brake power. The mechanical efficiency of the engine is 75%. The frictional power is

Question 3

A diesel engine has a compression ratio of 20 and cut-off takes place at 10% of the stroke. What is the cut-off ratio?

Question 4

A six cylinder engine working on an Otto cycle has bore and stroke are 20 cm and 35 cm respectively, total clearance volume is 8335 cm³. What is the compression ratio _________?

Question 5

For constant maximum pressure and heat input, the air standard efficiency of power cycle is in the order.

Question 6

In Otto cycle, if expansion is continued to lowest cycle pressure, then cycle becomes

Question 7

The efficiency of Diesel cycle with decrease in cut off ratio

Question 8

Which cycle consists of two reversible isothermals and two isochoric___?

Question 9

Keeping other parameters constant, the brake power of diesel engine can be increased by?

Question 10

The Otto cycle thermal efficiency, with usual notation, is given as, where r is compression ratio and γ is the adiabatic index

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AE & JE Exams Mechanical Engineering

Sep 14AE & JE Exams