Obscure — Difficult to understand.

Total internal reflection — Mirages are caused by total internal reflection of light in layers of hot air near the ground.

HSA Mixed Practice Test #1 — Kerala PSC Prep

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Q1.Synonym of ABSTRUSE:

A. Clear B. Obscure C. Simple D. Easy

Q2.'The letter was written by her' — active voice:‌‍

A. She wrote the letter B. Her wrote the letter C. She was writing the letter D. She has written the letter

Q3.Synonym of CAPRICIOUS:

A. Steady B. Unpredictable C. Reliable D. Slow

Q4.President's pardoning power under Article:

A. 70 B. 71 C. 72 D. 73

Q5.The oxygen-carrying pigment in human muscles is:

A. Haemoglobin B. Myoglobin C. Chlorophyll D. Melanin

Q6.A mirage is due to:‌‍

A. Reflection B. Total internal reflection C. Dispersion D. Diffraction

Q7.Which is the first municipality in Kerala?

A. Thiruvananthapuram B. Kochi C. Thalassery D. Kozhikode

Q8.Apache helicopters India:‌‍

A. Only AF B. None C. Indian Army and Air Force D. Navy

Q9.IUPAC name of CH₃-CH₂-OH:‌‍

A. Propanol B. Methanol C. Ethanol D. Acetic acid

Q10.The idiom 'break the ice' means:

A. To shatter glass B. To start a conversation in a social situation C. To cool down D. To be rude

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