Which of the following species is NOT a proton acceptor in natural waters?
- \(OH^{-}\)
- \(HCO_3^{-}\)
- \(CO_3^{2-}\)
- \(H_3O^{+}\)
The Correct Option is D
Solution and Explanation
Top Questions on Marine
Consider the psychrometric process denoted by the straight line from state 1 to 2 in the figure. The specific humidity, Dry Bulb Temperature (DBT), and Wet Bulb Temperature (WBT) at the two states are shown in the table. The latent heat of vaporization of water \( h_{fg} = 2440 \, {kJ/kg} \). If the flow rate of air is 1 kg/s, the rate of heat transfer from the air is _________ kW (rounded off to two decimal places).
Water of density \( \rho = 1000 \, {kg/m}^3 \) flows with a velocity \( V = 50 \, {m/s} \) through a 180° curved tube of uniform cross-section as shown in the figure. If the flow rate is \( 0.06 \, {m}^3/{s} \), the magnitude of the reaction force \( F_x \) required to keep it stationary is ________ kN (rounded off to one decimal place).
A tank with a constant water level of 4 m above the centreline of an opening of diameter 100 mm is shown in the figure. Neglect all losses and assume \( g = 9.81 \, {m/s}^2 \). The discharge through the opening is ________ litres/s (answer in integer).
- Which of the following components is/are NOT found in a two-stroke marine diesel engine?
- Which one of the following is the most common type of gear assembly used for coupling steam turbine and propeller shafts?
Questions Asked in CUET PG exam
- What is the antonym of eradicate?
- CUET (PG) - 2025
- Antonyms
- What is the correct verb form: He, as well as his friends, ?
- Identify the possessive noun: My office car is parked elsewhere.
- When did the Dutch set up their factory at Nizampatnam?
- CUET (PG) - 2025
- Medieval Indian History
- What is the one-word synonym for connotation?
- CUET (PG) - 2025
- Synonyms