objective questions engineering

Exam questions for Engineers

1. An Air Pre-heater is installed-

a) Before the economizer     b) before the super heater

c) Between the economizer and chimney    d) none of these

2. An economizer is generally placed between -

a) Last super heater or re heater and air pre- heater b) induced draft and forced draft fan

c) Air pre heater and chimney d) none of these

3) All steam engines work on -

a) Zeroth law of thermodynamics b) First law of thermodynamics

c) Second law of thermodynamics d) none of these

4) A condenser in a steam power plant-

a) Increases Expansion ratio of steam b) reduces back pressure of steam

c) Reduces temperatures of exhaust steam d) all of these

5) The material generally used for cylinder sleeve is -

a) Aluminum b) Ceramic c) Cast Iron d) Fiber Reinforced plastic

6) The natural gas is compressed in a CNG cylinder at a pressure of -

a) 200 bar b) 220 bar c) 250 bar d) 300 bar

7) The firing order for an In-Line four cylinder I.C. Engine is-

a) 1-2-3-4 b) 1-3-4-2 c) 1-4-3-2 d) 1-3-2-4

8) The two of cylinders in a ‘V’ type engine are generally arranged at a-

a) 45^°  b) 60^° c) 90^° d) 130^°

Answer: 1. (c) 2. (a) 3. (c) 4. (d) 5. (c) 6. (a) 7. (b) 8. (b)