# CSS :: Agricultural Engineering

For students in search of

• Hydroponic Gardening
• Guides - Basics to Experts level
• Growing fruit and vegetables hydroponically
• Practical daily questions or queries of hydroponics lovers
• Current Hydroponics and Indoor Gardening Market Growth as well as Trends
81.  The purpose of governor in the engine:
 A. To increase the engine speed B. To regulate the engine speed C. To decrease the engine speed D. None of these

82.  The first IC engine was invented in the year:
 A. 1876 B. 1890 C. 1900 D. 1905

83.  The IHP of an engine is always:
 A. Less than BHP B. More than BHP C. Equal to the BHP D. Equal to the FHP

84.  The clearance volume is the volume of air or mixture left in the cylinder when piston is at:
 A. BDC B. TDC C. Between TDC and BDC D. All are correct

85.  The compression pressure of diesel engine inside the cylinder varies from:
 A. 30-40 kg/cm2 B. 35-45 kg/cm2 C. 40-50 kg/cm2 D. 50-60 kg/cm2

86.  The compression pressure of petrol engine inside the cylinder varies from:
 A. 6-10 kg/cm2 B. 10-15 kg/cm2 C. 8-12 kg/cm2 D. 12-15 kg/cm2

87.  The firing interval of 2-stroke engine is determined by:
 A. 180?/No. of cylinder B. 270?/No. of cylinder C. 360?/No. of cylinder D. 720?/No. of cylinder

88.  The firing interval of 4-stroke engine is determined by:
 A. 180?/No. of cylinder B. 270?/No. of cylinder C. 360?/No. of cylinder D. 720?/No. of cylinder

89.  The rate of doing work is equal to:
 A. 75 kg n/min B. 4500 kg m/min C. 27000 kg m/hr D. All are correct

90.  The efficiency of IC engines varies from:
 A. 25 to 32 per cent B. 30 to 40 per cent C. 35 to 40 per cent D. 32 to 38 per cent